Ava puts $400.00 into an account to use for school expenses.The account earns 12percent interest ,compuonded annualy.How much will be in the account after 9 years?

Answers

Answer 1

Answer:$1109.23 will be in the account after 9 years

Step-by-step explanation:

Initial amount deposited into the account is $400 This means that the principal

P = 400

It was compounded annually. This means that it was compounded once in a year. So

n = 1

The rate at which the principal was compounded is 12%. So

r = 12/100 = 0.12

It was compounded for 9 years. So

n = 9

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount in the account at the end of t years. Therefore

A = 400 (1+0.12/1)^1×9

A = 400(1.12)^9 = 1109.23$


Related Questions

Find a formula C(x,y,z) that gives the cost of materials for a closed rectangular box, with dimensions in feet. Assume that the material for the top and bottom costs $3 per square foot and the material for the sides costs $5 per square foot. Show all work in steps clearly.

Answers

Answer:

C(x,y,z)=6*x*y+10*x*z+10*y*z

Step-by-step explanation:

Lets assume that x is width, y is length and z is height. To find the area of the top and bottom surfaces we need to simply multiply length and width.

x*y

There is a 2 surface exist (top and bottom) we need to multiply this value with 2 again.

2*x*y

and the cost is 3$ for per square foot and the cost for top and bottom is:

6*x*y$

Surface areas of side surfaces are multiply of width, height and length, height:

x*z+y*z

There are 4 side surfaces exist. Therefore the are need to be multiply with 2.

2*x*z+2*y*z

and the cost is 5$ for per square foot and the cost for side surfaces is:

10*x*z+10*y*z

Total equality for cost is C(x,y,z)=6*x*y+10*x*z+10*y*z

Final answer:

To calculate the cost of materials for a closed rectangular box, use the formulas C(x,y) = 2 * (3xy) for the top and bottom and C(z,y) = 2 * (5zy) for the sides. Then, find the total cost by adding the costs together.

Explanation:

To calculate the cost of materials for a closed rectangular box, we need to consider the dimensions of the box. Let's assume the dimensions are given as x, y, and z in feet.

The cost for the top and bottom parts of the box can be calculated using the formula C(x,y) = 2 * (3xy), where 3 is the cost per square foot and xy is the area of the top and bottom.

The cost for the side parts of the box can be calculated using the formula C(z,y) = 2 * (5zy), where 5 is the cost per square foot and zy is the area of the sides.

Finally, the total cost of materials for the box can be found by adding the costs for the top and bottom parts to the cost of the side parts: C(x,y,z) = C(x,y) + C(z,y).

Learn more about Cost of materials for a closed rectangular box here:

https://brainly.com/question/32926052

#SPJ3

What is the total interest earned in two years on an account containing $500 at 3.5% interest, compounded annually?


$35.61


$35.16


$35.00


$36.51

Answers

$35.
500 x .035 = 17.5 < - 1 year interest
17.5x2 = 35 <- 2 years

Answer: Compound interest is $36.61

Step-by-step explanation:

Initial amount deposited into the account is $500 This means that the principal,

P = 500

It was compounded annually. This means that it was compounded once in a year. So

n = 1

The rate at which the principal was compounded is 3.5%. So

r = 3.5/100 = 0.035

It was compounded for 2 years. So

t = 2

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount in the account at the end of t years. Therefore

A = 500 (1+0.035/1)^1×2

A = 500(1.035)^2 = $535.61

Compound interest = 535.6 - 500 = $35.61

Office Furniture Makers, Inc. uses machines to produce high quality office chairs for other firms. The initial cost of one customized machine is $750,000. This machine costs $12,000 a year to operate. Each machine has a life of 3 years before it is replaced. What is the equivalent annual cost of this machine if the required return is 10 percent? (Round your answer to whole dollars.)

Answers

Final answer:

The equivalent annual cost of the machine, considering a 10% return, is approximately $309,535 per year.

Explanation:

First, accumulate the total cost over the lifespan of the machine which is $750,000 (initial cost) + ($12,000 * 3 years) = $786,000. The equivalent annual cost can be calculated using the formula for the present value of an annuity: PV = PMT [(1 - (1 + r)^-n ) / r], where 'PMT' is the payment per period, 'r' is the rate of return, and 'n' is the number of periods. Rearrange to calculate PMT: PMT = PV * r / (1 - (1 + r)^-n). Substituting in given values gives us, PMT = $786,000 * 0.1 / [1 - (1 + 0.1)^-3] = $309,535/year.

Learn more about Equivalent annual cost here:

https://brainly.com/question/35843581

#SPJ12

PLEASE HELP ME!!!! WILL GIVE BRAINLIEST!!!
If (x − 5) is a factor of the polynomial function f(x) = 3x^2 − 23x + 40, which of the following is another factor?
A. (3x − 8)
B. (3x + 8)
C. (8x − 3)
D. (8x + 3)

Answers

Answer:

option a is correct , watch explanation

Answer:

There are two factors of the function. You already said the first one, x-5. The second factor is Option A

Hope this helps, comment for any questions. If you like this answer please mark me the brainliest! Thanks!

HELP ASAP!!! BRAINLIEST!

Answers

its a b and c they all equal 45

Answer:

1 * 45

5 * 9

3 * 15

Hope this helps!

Please,  consider brainliest. I only have 5 left then my rank will go up.

At the price of $3 a pound of pork, Jason buys 8 pounds of pork and Noelle buys 10 pounds of pork. When the price rises to $5 a pound, Jason buys 5 pounds of pork and Noelle buys 7 pounds of pork. What is the market demand at $5?

Answers

Answer:

Market demand at $5 is 12 pork.

Step-by-step explanation:

In a market, the sum of individual demand for a product from buyers is known as market demand.

It is give that the at the price of $3 a pound of pork, Jason buys 8 pounds of pork and Noelle buys 10 pounds of pork.

So, market demand at $3 is

8 + 10 = 18

When the price rises to $5 a pound, Jason buys 5 pounds of pork and Noelle buys 7 pounds of pork.

So, market demand at $5 is

5 + 7 = 12

Therefore, the market demand at $5 is 12 pork.

A lazy high school senior types up application and envelopes to and different colleges, but puts the applications randomly into the envelopes. What is the expected number of applications that went to the right college?

Answers

Final answer:

To calculate the expected number of applications that went to the right college, we need to consider the probability of each application being placed correctly. Since the applications are placed randomly, each application has an equal chance of going to the right college. The expected number of applications that went to the right college is 1.

Explanation:

To calculate the expected number of applications that went to the right college, we need to consider the probability of each application being placed correctly. Since the applications are placed randomly, each application has an equal chance of going to the right college. Let's say there are n applications and n colleges.

The probability of a specific application going to the right college is 1/n. Therefore, the expected number of applications that went to the right college can be calculated as:

Expected number = Total number of applications * Probability of an application going to the right college

Expected number = n * (1/n)

Expected number = 1

The expected number of applications that went to the right college is 1. This means that, on average, one application will go to the right college.

A man flies a kite at a height of 15 ft. The wind is carrying the kite horizontally from the man at a rate of 5 ft./s. How fast must he let out the string when the kite is flying on 32 ft. of string?

Answers

Answer:

4.4 ft/s

Step-by-step explanation:

Height = 15ft

Rate= 5 ft/s

Distance from the man to the kite= 32ft

dh/dt = 5 ft/s

h = √32^2 - 15^2

h = √ 1025 - 225

h = √800

h = 28.28ft

D = √15^2 + h^2

dD/dt = 1/2(15^2 + h^2)^-1/2 (2h) dh/dt

= h(225 + h^2)^-1/2 dh/dt

= (h / √225 + h^2)5

= (28.28 / √225 + 28.28^2)5

= (28.28 / √1024.7584)5

= (28.28/32)5

= 0.88*5

= 4.4 ft/s

demochares has ived a fourth of his life as a boy, a fifth as a youth, a third as a man, and has spend 13 years in his dotage. how old is he?

Answers

Answer:  60 years

Step-by-step explanation:

Let x denotes the age of Demochares .

Time he spent as a boy = [tex]\dfrac{x}{4}[/tex]

Time he spent as a youth = [tex]\dfrac{x}{5}[/tex]

Time he spent as a man= [tex]\dfrac{x}{3}[/tex]

Time he spent in dotage= 13 years

As per given , we have the following equation:

[tex]x=\dfrac{x}{4}+\dfrac{x}{5}+\dfrac{x}{3}+13[/tex]

[tex]x=\dfrac{15x+12x+20x}{60}+13[/tex]  [Take LCM]

[tex]x=\dfrac{47x}{60}+13[/tex]

[tex]x-\dfrac{47x}{60}=13[/tex]

[tex]\dfrac{60x-47x}{60}=13[/tex]

[tex]\dfrac{13x}{60}=13[/tex]

[tex]x=13\times\dfrac{60}{13}=60[/tex]

Hence, he is 60 years old.

Carol puts some green cubes and red cubes in a box. The ratio is 2:1. She adds 12 more cubes to the red cubes in the box and the ratio becomes 4:5. How many green cubes were in the box?

Answers

Answer:

16 green cubes are in the box.

Step-by-step explanation:

No. of red cubes at first (x):

4(x + 12) = 5(2x)

4x + 48 = 10x

6x = 48

x = 8

No. of green cubes:

= 8 * 2

= 16

Answer: 16 green cubes are in the box.

20 red cubes are in the box in the end.

Proof (the ratio in the end is 4:5):

= 16 is to 20

= 16/4 is to 20/4

= 4 is to 5

A right triangle has a hypotenuse of 70 feet and a leg of 35 feet. What is the length of the other leg? A. 51 feet B. 61 feet C. 78 feet D. 80 feet

URGENT!!!!!

Answers

Answer: the answers b i think

Good evening ,

Answer:

The right answer is B.

Step-by-step explanation:

If we apply the Pythagorean theorem we get

the length of the other leg is :

√(70^2-35^2)

= √(3 675)

= 60,621778264911.

:)

Ron walks 0.5 mile on a track in 10 minutes. Stevie walks 0.25 mile on the track in 6 minutes find the unit rate for each walker in miles per hour. Who is faster?

Answers

Answer:

Ron's speed = 3 miles/hour

Stevie's speed = 2.5 miles/hour

On comparing we see Ron is walking faster than Stevie.

Step-by-step explanation:

Given:

Ron takes 10 minutes to walk on a track to cover a distance of 0.5 miles

Stevie takes 6 minutes to walk on a track to cover a distance of 0.25 miles

To find their unit rates in mile per hour and choose the faster one.

Solution:

Unit rate in miles per hour signifies their speeds. Thus, we will find out their speeds.

Ron:

Distance= 0.5 miles

Time = 10 minutes = [tex]10\ min\times \frac{1\ hr}{60\ min}=\frac{1}{6}[/tex] hours

Speed = [tex]\frac{Distance}{Time}=\frac{0.5}{\frac{1}{6}}=0.5\times6=3\ miles/hour[/tex]

Stevie

Distance = 0.25 miles

Time = 6 minutes = [tex]6\ min\times \frac{1\ hr}{60\ min}=\frac{1}{10}[/tex] hours

Speed = [tex]\frac{Distance}{Time}=\frac{0.25}{\frac{1}{10}}=0.25\times10=2.5\ miles/hour[/tex]

Thus, we have

Ron's speed = 3 miles/hour

Stevie's speed = 2.5 miles/hour

On comparing we see Ron is walking faster than Stevie.

The total cost of producing a type of car is given by C(x)=12000−40x+0.04x2, where x is the number of cars produced. How many cars should be produced to incur minimum cost?

Answers

Answer:

Step-by-step explanation:

C'(x)=-40+0.08 x

C'(x)=0 gives

-40+0.08 x=0

x=40/0.08=500

C"(x)=0.08>0 at x=500

so C(x) is  minimum if x=500

so 500 cars need to be produced for minimum cost.

or we can solve by completing the squares.

c(x)=12000+0.04(x²-1000 x+250000-250000)

=12000+0.04(x-500)²-0.04×250000

=0.04 (x-500)²+12000-10000

=0.04(x-500)²+2000

c(x) is minimum if x=500

Final answer:

To minimize the cost based on the provided quadratic cost function, 500 cars should be produced.

Explanation:

This a problem of optimization in the arena of Calculus. The cost function C(x) = 12000-40x+0.04x2 is a quadratic function, and the minimum cost occurs at the vertex of the parabola described by this function.  

For any quadratic function f(x)=ax2 +bx + c, minimum or maximum value occurs at x = -b/2a.

In this case, a = 0.04 and b = -40.

So minimum cost occurs when x = -(-40) / 2*0.04 = 500.

So, to incur minimum cost, 500 cars should be produced.

Learn more about Optimization in Calculus here:

https://brainly.com/question/35182200

#SPJ2

A bicycle moves approximately 7 feet with each revolution of the wheels. If the bicycle wheels are making 30 revolutions per minute, approximately how many feet will the bicycle travel in 1 hour?

Answers

Answer:

[tex]12,600\ ft[/tex]

Step-by-step explanation:

step 1

Find out the number of revolutions in one hour

we know that

The bicycle wheels are making 30 revolutions per minute

One hour are 60 minutes

so

using proportion

[tex]\frac{30}{1}\ \frac{rev}{min}=\frac{x}{60}\ \frac{rev}{min}\\\\x=60(30)\\\\x=1,800\ rev[/tex]

step 2

Find out how many feet the bicycle will travel in one hour

we know that

A bicycle moves approximately 7 feet with each revolution and the number of revolutions in one hour is 1,800

so

Multiply the number of revolutions in one hour (1,800 rev) by 7 feet

[tex](1,800)7=12,600\ ft[/tex]

Complete the statement to describe the expression (a+b)(d+e)(a+b)(d+e)left parenthesis, a, plus, b, right parenthesis, left parenthesis, d, plus, e, right parenthesis. The expression consists of factors, and each factor contains 4 terms.

Answers

Final answer:

To complete the statement describing the expression (a+b)(d+e)(a+b)(d+e), we expand it by multiplying each term. Simplifying the expression, we get a²*d² + 2a²de + 2abde + b²e².

Explanation:

To complete the statement describing the expression (a+b)(d+e)(a+b)(d+e), we need to expand it. This can be done by multiplying each term in the first factor by each term in the second factor and then multiplying the result by the third factor. So the expression becomes:

(a+b)(d+e)(a+b)(d+e) = (a*d + a*e + b*d + b*e)(a*d + a*e + b*d + b*e)

We can simplify this further by combining like terms:

(a*d + a*e + b*d + b*e)(a*d + a*e + b*d + b*e) = a²*d² + 2a²de + 2abde + b²e²

State if the triangles in each pair of similar. If so, State how you know they are similar and complete the similarity statement.

Answers

Answer:

Step-by-step explanation:

They are not similar.  If they were, ∠LMF and ∠GHF would both have the same angle measure and they do not.

Final answer:

Mathematics question on similar triangles; triangles are similar if they have congruent corresponding angles and proportional sides obtained through AA, SSS, or SAS criterion. A similarity statement describes the correspondence of the vertices.

Explanation:

The question provided falls within the subject of Mathematics, specifically within the study of geometry and the concept of similar triangles. To determine if two triangles are similar, we must check if they have the same shape, which implies that their corresponding angles are equal and their corresponding sides are in proportion. In other words, two triangles are similar if their corresponding angles are congruent and the lengths of their corresponding sides are proportional. This can be verified by angle-angle similarity (AA), side-side-side similarity (SSS), or side-angle-side similarity (SAS). The similarity statement provides the order of correspondence of vertices between similar triangles.

When evaluating if triangles BAO and B1A1O are similar, we must compare their corresponding angles and sides. If the given information indicates that at least two angles of one triangle are congruent to two angles of another triangle (AA criterion), or that the sides are proportional (SSS or SAS criterion), then the triangles are similar. For instance, if ∠BAO ≅ ∠B1A1O and ∠BOA ≅ ∠B1O1A1, then by the AA criterion, the triangles are similar, and we could write the similarity statement as triangle BAO ∼ triangle B1A1O.

If the function b(t) gives the number of boats it takes t people to cross a river, what is the appropriate domain?

Answers

Answer:

whole numbers

Step-by-step explanation:

The domain is the number of people. The smallest number of people you could have would be 0 people so the appropriate domain is whole numbers.

Make me the brainliest

Answer:

whole numbers

Step-by-step explanation:

why is it that when you take the squre root of a function that is squared you get an absolute value?

Answers

Answer and explanation :

When we square any number then its gives absolute value for example even when we square the negative numbers it will given positive , that is absolute value

So we can conclude that square of any number is absolute number

And then is we take square root of that absolute number it will always positive and absolute

Mary read 42 pages of a book on Monday she read 2/5 of the book on Tuesday if she still had 1/4 of the book to read how many pages are there in the book

Answers

Answer: 120 pages

Step-by-step explanation:

42 p on Monday

2/5x on Tuesday

1/4x rest of book

---------------------------------------------------

42+2/5x+1/4x=x

42*20 +8x+5x=20x

840=20x-8x-5x

840=7x

x=840/7

x=120

The required number of pages in the book is given as 120 pages.

Given that,
Mary read 42 pages of a book on Monday she read 2/5 of the book on Tuesday if she still had 1/4 of the book to read how many pages are there in the book is to be determined.

What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,

here,
let the number of pages in the book be x,
According to the question,
x - 42 - 2/5x = 1/4x
x - 2/5x - 1/4x = 42
x[1 - 2/5 - 1/4] = 42
x[20 - 8 - 5] / 20 = 42
x [7] / 20 = 42
x = 6 × 20
x = 120 pages

Thus, the required number of pages in the book is given as 120 pages.

Learn more about arithmetic here:

https://brainly.com/question/11424589

#SPJ5


State the postulate or theorem you would use to prove each pair of triangles congruent.
If the triangles cannot be proved congruent, choose "Not Possible."

Answers

Answer:

Not possible

Step-by-step explanation:

The only information we are given are the pairs of angles that are congruent which is not enough information to prove that they are congruent

The triangles cannot be proved congruent by AAA postulates. Then the correct option is D which is not possible.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.

The ratio of the matching sides will remain constant if two triangles are comparable to one another.

The two triangles are congruent if two sides are as well and the angle (angle between any of these two sides) among one triangle is congruent to the comparable two sides as well as the angle of a second triangle.

The triangles cannot be proved congruent by AAA postulates. Then the correct option is D which is not possible.

More about the triangle link is given below.

https://brainly.com/question/25813512

#SPJ3

A circle has its center at (0,0) and passes through the point (0,9). What is the standard equation of the circle?


x² + y² = 0


x² + y² = 9


x² + y² = 9²

Answers

Answer:

Step-by-step explanation:

I believe the answer is x² + y² = 9²

Consider the rational expression (IMAGE ATTACHED)

3x^2−3/
3x^2+2x−1

Which statements are true?

Answers

Answer:

3x² is a term in the numeratorx + 1 is a common factorThe denominator has 3 terms

Step-by-step explanation:

You can identify terms and count them before you start factoring. Doing so will identify 3x² as a term in the numerator, and will show you there are 3 terms in the denominator.

When you factor the expression, you get ...

  [tex]\dfrac{3x^2-3}{3x^2+2x-1}=\dfrac{3(x^2-1)}{(3x-1)(x+1)}=\dfrac{3(x-1)(x+1)}{(3x-1)(x+1)}[/tex]

This reveals a common factor of x+1.

So, the above three observations are true of this rational expression.

The cost of a peanut butter bar is $0.07 more than the cost of a chocolate bar. If you buy 5 peanut butter bars and 6 chocolate bars, the total cost is $6.40. How much does the chocolate bar cost?

$0.61

$0.55

$0.54

$0.62

Answers

Hello!

To be quick and simple, your answer would be $0.55

Final answer:

The cost of the chocolate bar in the given scenario is $0.55. This was determined by solving a two-variable system of linear equations from the information provided.

Explanation:

This problem is a classic example of a system of linear equations, specifically two-variable linear equations. Here, we need to find the cost of one chocolate bar and one peanut butter bar, and we have two pieces of information that can be translated into equations. The first information is that a peanut butter bar costs $0.07 more than a chocolate bar. The second is that 5 peanut butter bars and 6 chocolate bars total $6.40. We'll use these equations to solve for the variables.

Let's denote the cost of the chocolate bar as x and the cost of the peanut butter bar as y. Then, from the information given, we can form two equations:

y = x + $0.075y + 6x = $6.40

Substitute the first equation into the second to solve for x:

5(x + $0.07) + 6x = $6.405x + $0.35 + 6x = $6.4011x + $0.35 = $6.4011x = $6.05x = $0.55

So the cost of the chocolate bar is $0.55.

Learn more about two-variable linear equations here:

https://brainly.com/question/34202446

#SPJ2

Maggie can paint a fence in 9 hours, but Tom needs 12 hours to paint the same fence. How long does it take them to paint the fence if they work together? Round to the nearest tenth.

Answers

Working together, Maggie and Tom can paint the fence in 5.1 hours

Solution:

Given that,

Maggie can paint a fence in 9 hours

So in 1 hour maggie paints, [tex]\frac{1}{9}[/tex] of the house

Tom needs 12 hours to paint the same fence

So in 1 hour, tom can paint [tex]\frac{1}{12}[/tex] of the house

To find: time taken to paint the fence if they work together

Let "a" be the time taken to paint the fence if they work together

So working together, in 1 hour, they can paint [tex]\frac{1}{a}[/tex] of the house

We can frame a equation as:

To see how much of the fence they can paint together in one hour, we add these together.

[tex]\frac{1}{9} + \frac{1}{12} = \frac{1}{a}[/tex]

[tex]\frac{1}{a}[/tex] is how much of the fence they can paint together in one hour.  Therefore "a" is the number of hours it will take them both to paint the fence

On solving,

[tex]\frac{12 + 9}{12 \times 9} = \frac{1}{a}\\\\\frac{1}{a} = \frac{21}{108}\\\\a = \frac{108}{21} = 5.1428[/tex]

So working together, Maggie and Tom can paint the fence in 5.1 hours

Assume that a surveyor stands at the top of a mountain that is "h" feet tall. If the distance (in feet) that he can see is defined by d = 3200.2 SQRT(h), then answer the following. (a) How far can the surveyor see from the top of a 2000-foot mountain? (b) How tall is the mountain, if the surveyor can see 15 miles? (Note: 1 mile equals 5280 feet.)

Answers

Answer:

a) d = 143,117 ft

b) h = 612.45 ft

Step-by-step explanation:

If height of the mountain = h  

And distance till the surveyor can see = d = 3200.2 SQRT (h)

Refer to attached file for graphical representation

     

Then;

A) If h=2000 ft

Then d =3200.2 √ (2000)

d = 3200.2 (44.72)

d = 143,117 ft

B) If d = 15 miles

1mile = 5280 ft

15 mile = 15*5280

15 mile = 79,200 ft

Therefore;

d = 79,200 ft

Since,

d =3200.2 √ (h)  

79,200 = 3200.2 √ (h)

79200/3200.2 =√ (h)

√ (h) = 24.75

{√ (h)} ² = (24.75) ²

h = 612.45 ft

Let alpha and beta be conjugate complex numbers such that frac{\alpha}{\beta^2} is a real number and alpha - \beta| = 2 \sqrt{3}. Find alpha.

Answers

Final answer:

To find the value of alpha given that alpha and beta are conjugate complex numbers, and alpha/beta^2 is real, we can use the equation |alpha - beta| = 2√3. We can substitute alpha = a + bi and beta = a - bi, and solve for a and b to find the value of alpha.

Explanation:

Let α and β be conjugate complex numbers such that α/β² is a real number and |α - β| = 2√3. We need to find the value of α.

Since α and β are conjugate complex numbers, they have the form α = a + bi and β = a - bi, where a and b are real numbers. Substituting these values into the given equation, we get:

|α - β| = |(a + bi) - (a - bi)| = |2bi| = 2|b| = 2√3

From this, we can conclude that |b| = √3. Since |b| is the absolute value of b, it is always positive. Therefore, we have two options: b = √3 or b = -√3.

If b = √3, then α = a + √3i. We can substitute this into the equation α/β² to check whether it is a real number.

α/β² = (a + √3i)/(a - √3i)² = (a + √3i)/(a² - 2a√3i - 3) = [(a(a² - 3) + √3i(3a - a²)] / (a² - 2a√3i - 3)

This expression is not a real number, so b ≠ √3.

If b = -√3, then α = a - √3i. We can substitute this into the equation α/β² to check whether it is a real number.

α/β² = (a - √3i)/(a + √3i)² = (a - √3i)/(a² + 2a√3i + 3) = [(a(a² + 3) - √3i(3a + a²)] / (a² + 2a√3i + 3)

This expression simplifies to (a(a² + 3) - √3(3a + a²))/ (a² + 3) = a - √3(2a + 1)/ (a² + 3)

For this expression to be a real number, the imaginary term √3(2a + 1) must be equal to 0. So, we have √3(2a + 1) = 0.

Solving this equation, we get 2a + 1 = 0, which implies a = -0.5.

Therefore, the value of α is α = -0.5 - √3i.

if I'm in a plane flying at 512 miles per hour and a plane flies below me in the opposite direction, will it appear to fly slow or fast

Answers

Answer:

It appears to fly faster than its actual speed.

Step-by-step explanation:

In general, if talking about velocities, the direction of the movement should also be taken into account. For example, if two objects move in opposite directions, a person inside one object observes that the other one moving in the opposite goes faster than its actual speed (because the velocities are summed up). If they are moving in the same direction the opposite phenomenon is true (the velocities are subtracted).

Finally, in this example the planes move in opposite direction, therefore, a plane flying in the opposite direction will appear to fly  faster.

Calculate the simple interest paid on a loan of $544 at 3% for three months.


$48.96


$4.80


$4.90


$4.08

Answers

Answer:

Step-by-step explanation:

Answer: interest at the end of 3 months is $4.08

Step-by-step explanation:

The formula for simple interest is expressed as

I = PRT/100

Where

P represents the principal

R represents interest rate

T represents time in years

I = interest after t years

From the information given

T = 3 months = 3/12 = 0.25 years

P = $544

R = 3%

Therefore

I = (544 × 3 × 0.25)/100

I = 408/100

I = 4.08

Ten spheres each with radius of 2 cm are fully immersed in a cylinder of water with radius 10 cm. find the rise in water level

Answers

Answer:

no. of spjeres=10

radius of those cylinders =2cm

radius of the cylinder in which water is poured=10

rise in water water level =10×2÷10 = 2cm

The rise in water level will be 2 centimeters when spheres are fully immersed in a cylinder.

What is the volume of a cylinder?

The volume of a cylinder is defined as the space occupied by the cylinder and the volume of any three-dimensional shape is the space occupied by it.

Ten spheres, each with a radius of 2 cm, are fully immersed in a 10 cm cylinder of water.

As per the given question, we have

The number of spheres = 10

The radius of those cylinders = 2cm

The radius of the cylinder in which water is poured = 10

According to the condition, the required solution would be as:

The rise in water level = 10 × 2 ÷ 10

The rise in water level = 20/10

Apply the division operation, and we get

The rise in water level = 2 cm

Learn more about the cylinders here :

brainly.com/question/16134180

#SPJ5

An egg farm packages 264 total cartons of eggs each month.The farm has three different sizes of cartons.The small carton holds 8 eggs,and 1/6 of the total cartons are small.TThe medium carton holds 12 eggs and 2/3 of the total Cardinals are medium to large carton holds 18 eggs and the rest of the total clients are large determine how many of each size of the curtain is needed each month then determine how many eggs are needed to fill the 264 cartons show your work or explain your answers

Answers

I don't know.. can you please explain it?

Other Questions
The motion of an object is called inertia. What force works against an object in motion, or inertia?a.Gravityb.Transitionc.Normald.Friction Which of the following are criticism of kohlberg's theory of moral developmen? 7. How did the discovery of the cave paintings at Altamira change perceptions of ancient cultures? (2 points)a. identified capabilities far exceed previous beliefsb. identified the importance of huntingc. identified a variety of colors previously unknownd. identified process of spiritual quests for individuals A client with chronic obstructive pulmonary disease (COPD) states, "I have had steady weight loss, and I am often too tired to eat." Which nursing diagnosis would be most appropriate for this client? A. Fatigue related to weight loss secondary to COPD B. Imbalanced nutrition: less than body requirements, related to fatigue C. Imbalanced nutrition: less than body requirements, related to COPD D. Ineffective breathing pattern, related to alveolar hypoventilation A popcorn company builds a machine to fill 1 kg bags of popcorn. They test the first hundred bags filled and find that the bags have an average weight of 1,040 grams with a standard deviation of 25 grams. 1.) Fill out the normal distribution curve for this situation. 2.) What percentage of people would receive a bag that had a weight greater than 1115 grams? TranslateYour grade must be at least 60 to pass this class If you involve students in writing rules, you must leave classroom policies to their discretion.A) TrueB) False Pessimism and other symptoms of depression can set the stage for negative life events, but at the same time negative life events can also lead to pessimism and other symptoms of depression. The uncertainty of the direction by which these relationships exist indicates the importance of remembering the principle of __________. At a certain college there are twice as many English majors as history majors and three times as many English majors as mathematics majors. What is the ratio of the number of history majors to the number of mathematics majors?A. 6 to 1B. 3 to 2C. 2 to 3D. 1 to 5E. 1 to 6 1. Why might some historians consider Adam Smith one of the most influential people in history?A. He taught that all people should be economic equals.B. He introduced a way of thinking about economic ideas.C. He argued for a larger role for the government in the economy.D. He wrote the economic argument for American independence. You feel the pain of a sprained ankle when ________ relay(s) messages from your ankle to your central nervous system. What are the two main purposes of S/MIME?Digital signaturesEncryptionJunk mail preventionSpam prevention A rubbit gets down from a rump which its /\x=0.85m in 0.5s, The rubbit's mass is 2kg, what is the net Force? Alexander Hamilton strongly supported a pro-Federalist interpretation of the Constitution. He supported greater federal powers at the expense of the states' powers. Which of these is a result of Hamilton's federalist beliefs? During the time that Eliezer spends with Moshe the Beadle, what is the main topic that they discuss? Consuming many different fruits and vegetables that provide a broad range of essential nutrients describes what diet planning principle? What was the decision of the texans at the consultation of march 1836 One way for people to break the vicious cycle of depression is to:accept more personal responsibility for their own bad mood. frequently talk to their friends about their negative thoughts and depressive feelings. participate more often in activities they consider pleasant and rewarding. spend more time in quiet rest, seclusion, and personal meditation. FIND RATIOS4. A string that is 75 inches long will be cut into two pieces in the ration of 4:11. Find the lengthsof the two pieces of string.5. The ratio of two supplementary angles is 4:1. Find the measures of the two angles.6. The ratio of the measures of the angles in a triangle is 3:5-7. Find the measure of each angle.7. The ratio of the measure of the sides of a triangle is 5;7:8 and its perimeter is 40 inches. Findthe measure of each side. Which value of x would make NO || KJ?16810 Steam Workshop Downloader