The diameter at the center of the tower is_ meters. The center of the tower is _meters above the ground

The Diameter At The Center Of The Tower Is_ Meters. The Center Of The Tower Is _meters Above The Ground

Answers

Answer 1

Answer:

think 5 meters

Step-by-step explanation:


Answer 2

Answer:

The diameter at the center of the tower is 4 meters. The center of the tower is 8 meters above the ground.

Step-by-step explanation:

4x^2-y^2+16y-80=0

Completing squares in variable "y": Common factor -1:

4x^2-(y^2-16y)-80=0

4x^2-[(y-16/2)^2-(16/2)^2]-80=0

4x^2-[(y-8)^2-(8)^2]-80=0

4x^2-[(y-8)^2-64]-80=0

Eliminating the brackets:

4x^2-(y-8)^2+64-80=0

Adding like terms (constants):

4x^2-(y-8)^2-16=0

Adding 16 both sides of the equation:

4x^2-(y-8)^2-16+16=0+16

4x^2-(y-8)^2=16

Dividing all the terms by 16:

4x^2/16-(y-8)^2/16=16/16

Simplifying:

x^2/4-(y-8)^2/16=1

The hyperbola has the form:

(x-h)^2/a^2-(y-k)^2/b^2=1

Then:

h=0

k=8

a^2=4→sqrt(a^2)=sqrt(4)→a=2

The diameter (d) at the center of the tower is:

d=2a→d=2(2)→d=4 meters

The center of the tower is 8 (k) meters above the ground.


Related Questions

Given the position function, s of t equals t cubed divided by 3 minus 12 times t squared divided by 2 plus 36 times t , between t = 0 and t = 15, where s is given in feet and t is measured in seconds, find the interval in seconds where the particle is moving to the right. (5 points)


0 < t < 6


5 < t < 15


t > 15


The particle always moves to the right.

Answers

Answer:

Option D is correct.

as the particle always moves to the right

Step-by-step explanation:

Given the function:  [tex]s(t) = \frac{t^3}{3} - \frac{12t^2}{2} + 36t[/tex] , 0<t<15;

where

s(t) represent the distance in feet.

t represents the time in second.

Since, when the particle is moving to the right,

⇒ s(t) is increasing.

so, [tex]v(t) =\frac{ds}{dt} > 0[/tex]

Find the derivative of s(t) with respect to t;

Use derivative formula:

[tex]\frac{dx^n}{dx} = nx^{n-1}[/tex]

[tex]\frac{ds}{dt} = \frac{3t^2}{3}-\frac{24t}{2}+36[/tex]

Simplify:

[tex]\frac{ds}{dt} = t^2-12t+36[/tex]

As [tex]\frac{ds}{dt} > 0[/tex]

⇒[tex] t^2-12t+36 > 0[/tex]

[tex](t-6)^2 >0[/tex]               [[tex](a-b)^2 = a^2-2ab+b^2[/tex] ]

⇒ this is always true because square of any number is always positive

Therefore, it means that the particle always moves to the right.

Sandy has 16 roses, 8 daisies, and 32 tulips. She wants to arrange all the flowers in the bouquets. Each boquet has the same number of flowers and the same type of flower. What is the greatest number of flowers that could be in a bouquet?

Answers

Your answer would be 8 since that is your least common denominator between the three bouquets.
If it was more than 8 then each bouquet wouldn't have the same number of flowers since you only have a total of 8 daisies.

What is the approximate solution to the equation 3t=29 ? 0.3263 3.0650 3.3672 9.6667


ASAP

Answers

Answer:

9.6667

Step-by-step explanation:

3t=29

Divide each side by 3

3t/3 = 29/3

t = 29/3

Three goes into 29  nine times  (3*9 = 27 ) with 2 left over

t =  9 2/3

We know 1/3 = .3 repeating

so 2/3  = .6 repeating


t = 9 .6 repeating

Answer: 3.0650

Step-by-step explanation:

K-12

you and a friend are starting a computer repair business. you estimate that your expenses are $500 per week

Answers

Ok, do you have the complete question?

Final answer:

To set up a profitable computer repair business, assuming $50 for parts per repair and a service fee of $150, the weekly expenses equation is y = 50x + 500, and income equation is y = 150x, where x is the number of repairs.

Explanation:

When starting a computer repair business with estimated expenses of $500 per week, it's crucial to set average costs for replacement parts and fees for services to ensure profitability. Let's assume an average cost of $50 for parts per computer repaired and a service fee of $150 per repair. If x represents the number of computers you repair each week, your total weekly expenses for parts would be 50x plus the fixed expenses of $500, resulting in a total expense equation of y = 50x + 500. Your total weekly income can be modeled by the equation y = 150x, with each repair contributing $150 to the income.

To break even or make a profit, the total income must exceed total expenses, leading to an analysis based on the number of repairs done weekly. This practical application of linear equations in a business setting helps in budgeting, pricing strategies, and understanding economic principles behind running a service-based business. Monitoring these variables is key to achieving sustainability.

A tree casts a shadow that is 150 feet long. If the angle of elevation from the tip of the shadow to the top of the tree is 30°, how tall is the tree to the nearest foot?


A) 75 feet

B) 87 feet

C) 106 feet

D) 212 feet

Answers

Answer:

B) 87 feet

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you the relationship between angle, adjacent, and opposite sides is ...

... Tan = Opposite/Adjacent

In this geometry, the side adjacent to the angle is marked 150 ft, and the side opposite the angle is the height we want to find. This means ...

... tan(30°) = height/(150 ft)

Multiplying by 150 ft, we get ...

... height = (150 ft)·tan(30°) ≈ 87 ft

2. A savings account is started with an initial deposit of $500. The account earns 1.5% interest compounded annually.
(a) Write an equation to represent the amount of money in the account as a function of time in years.
(b) Find the amount of time it takes for the account balance to reach $800. Show your work.

Answers

(a)A(t)=500((1+0.015)^(t))
(b)800=500((1+0.015)^(t))
800/500=(1+0.015)^(t)
[tex]t = log_{1.015}(\frac{800}{500} ) [/tex]
t=31.567993958

You and your friend are selling magazine subscriptions for a fundraiser. After w w weeks, you have sold (3w+4) subscriptions and your friend has sold (5w+1) subscription . A.Write an expression in simplest form that represents the difference between the number of subscriptions your friend has sold and the number you have sold.

Answers

Answer:

The simplest form that represents the difference is ( 2w-3).

Step-by-step explanation:

In this sum after w weeks subscription sold by me = 3w+4

and the subscription sold by my friend =5w+1

so the difference between the numbers of my friend and me

⇒(5w+1)-(3w+4)

⇒5w+1-3w-4

⇒2w-3

So the simplest form is (2w-3).



Final answer:

The difference in the number of subscriptions sold by the friend and the student after w weeks is represented by the simplified expression 2w - 3.

Explanation:

To find the difference between the number of subscriptions your friend has sold and the number you have sold, you simply subtract your sales from your friend's sales. The expression for your sales is (3w + 4) subscriptions and for your friend's sales is (5w + 1) subscriptions. So, the expression representing the difference will be:

(5w + 1) - (3w + 4)

Distributing the negative sign across the terms in the second set of parentheses gives us 5w + 1 - 3w - 4. Combining like terms, which are the 'w' terms and the constant terms separately, we get:

(5w - 3w) + (1 - 4) which simplifies to 2w - 3.

This expression 2w - 3 is the simplified form representing the difference between the number of subscriptions sold by your friend and you after w weeks.

Please help! A new car that sells for $21,000 depreciates (decreases in value) 16% per year. Write a function that models the value of the car. Find the value of the car after 3 years.


A) $8,602

B) $11,779

C) $12,899

D) $12,447

Answers

Greetings!

Answer:

The function is:

21000 * (1 - [tex]\frac{16}{100}[/tex])[tex]^{n}[/tex]

The price after 3 years would be D) $12,447

Step-by-step explanation:

Because the value is depreciating, the price will decrease.

The function formula is:

Amount x (1 ± [tex]\frac{percentage}{100}[/tex])[tex]^{n}[/tex]

Where n is the amount of years and the ± is a + if the value is increasing, and a - if the value is depreciating.

So plug the values in, with a minus:

21000 * (1 - [tex]\frac{16}{100}[/tex])[tex]^{n}[/tex]


The price after 3 years would simply be the following equation:

21000 * (1 - [tex]\frac{16}{100}[/tex])[tex]^{3}[/tex]

Which gives the result 12446.7 or 12447 to 1.d.p

This means that the answer is D) $12,447!


Hope this helps!

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Find the diagonal of a square whose sides are of the given measure.

Given = 7√3

Answers

Answer:   " 7√6 " .

__________________________________________________

                →   The answer is:  " 7√6 units " .

__________________________________________________

Step-by-step explanation:

__________________________________________________

Method 1:

__________________________________________________

This will be a "45-45-90" triangle;

which means that in:

(two sides for triangle will be the same).

which is consistent with the information give:

(the two side of the triangle are sides of a "square" ,

 and ALL sides of a square have the "square length" ;

and one side with be 90 degrees (a right triangle);

and the other angles will be 45 degrees (which is 1/2 of 90 degrees because the will cut into "1/2" of each of the "two other 90 degree angles" when a diagonal is drawn to form the "hypotenuse".

So, for "45-45-90" triangles, the side lengths, are:  

     "x, x, x√2 " ;  in which "x√2" represents the side length of the "hypotenuse" ;  and the two "x" values represent the equal values for the other 2 (two) side lengths.,

We are asked to find the "diagonal" of the square;  in which:  "x = 7√3" ;

 That is, we are ask to find the hypotenuse:  "x√3"  ;

 Note:  We are given:  " x = 7√3 " ;

So:  " x√3 " =  " 7 *√3 *√2 = 7 *√6 = " 7√6 ".

____________________________________________

The answer is:  " 7√6 units " .

__________________________________________________

Method 2:

__________________________________________________

Use the Pythagorean theorem (for right triangles):

 "  a² + b² = c² " ;  

      in which: "c" represents the "side length" of the "hypotenuse" ;

                or:  the "diagonal" of the "square" ; for which we shall solve.

                      "a" and "b" represent the other sides of the right triangle.

                     In this case, "a" and "b" are equal;

                            since "a" & "b" are the side lengths of a square.

                    We are given:  a = b = " 7√3 " .

                      We are to find "c" .

__________________________________________________

"  a² + b² = c²  " ;  

↔   " c²  = a² + b²  " ;

__________________________________________________

 →  c²  = (7√3)² + (7√3)²  ;


 →  c²  = (7²) * (√3)² + (7²) (*√3)²  ;

 →  c²  = ( 49*3)    +  (49*3) ;

 →  c²  = (147) + (147) ;

 →  c²  = 294 ;

Take the "positive" square root of each side of the equation;

    to solve for "c" ;

 →  ⁺ √(c²) = ⁺ √294 ;

→  c = ⁺ √294


⁺ √294 =  ⁺ √3 ⁺ √98 ;

                         →   √98 = ⁺ √49⁺ √2 ;

⁺ √294  =  7√3√2  =  7√6 .    

__________________________________________________

  c = 7√6

__________________________________________________

The answer is:  " 7√6 units " .

__________________________________________________

The values obtained by using "both" methods/ match!

__________________________________________________

Hope this helps!

 Best wishes in your academic pursuits

          — and within the "Brainly" community!

__________________________________________________

Davila can job 2000 feet in 4 mins. If she jobs at the same, rate how many feet can she job in 8 mins?

Answers

Answer:

4000

Step-by-step explanation:

Davila can job 400 feet in 8 min

There are 4200 adults in lake view 3/8 of adults have no children how many adults have children

Answers

4200 divided by 8 = 525
525 x 3 = 1575
4200 - 1575 = 2625

2625 adults have children


Hope this helps :)

Which functions are even? Select all that apply

Answers

Answer:

The even functions are options 2, 3, and 5

Step-by-step explanation:

Please, see the attached file.

Thanks.

Answer:

Options B, C and E are even functions.

Step-by-step explanation:

If f(x) = f(-x) then function is called to be even.

A). f(x) = ∛8x

f(-x) = ∛8(-x) = (∛8)(∛(-x) = 2∛(-x)

Therefore f(x) ≠ f(-x)

So function is not an even function.

B). [tex]f(x)=log_{9}x^{6}[/tex]

[tex]f(-x)=log_{9}(-x)^{6}[/tex]

[tex]=log_{9}(x)^{6}[/tex]

f(x) = f(-x)

So this function is even.

C). [tex]f(x)=\frac{1}{x^{8}+7x^{7}}[/tex]

[tex]f(-x)=\frac{1}{(-x)^{8}+7(-x)^{6}}[/tex]

            = [tex]\frac{1}{x^{8}+7x^{6}}[/tex]

f(x) = f(-x)

Therefore given function is even.

D). f(x) = [tex]e^{x^{8}-x }[/tex]

[tex]f(-x)=e^{(-x)^{8}-(-x)}=e^{x^{8}+x}[/tex]

Therefore f(x) ≠ f(-x)

So the given function is not even.

E). f(x) = |8x| - 3

f(-x) = |8(-x)| - 3

      = |8x| - 3

f(x) = f(-x)

Therefore, function is even.

F). [tex]f(-x)= -9(-x)^{10}+5(-x)^{4}-12(-x)[/tex]

[tex]f(-x)= -9(x)^{10}+5(x)^{4}+12(x)[/tex]

f(x) ≠ f(-x)

Therefore the given function is not an even function.

Options B, C and E are even functions.

please help ill give brainliest

Answers

Answer: Second, third, fifth and sixth options are correct.

Step-by-step explanation:

Since we have given that

[tex]\frac{3}{4}+m=\frac{-7}{4}[/tex]

Now, we will solve it for the value of m :

[tex]\frac{3}{4}+m=\frac{-7}{4}\\\\m=\frac{-7}{4}-\frac{3}{4}\\\\m=\frac{-7-3}{4}\\\\m=\frac{-10}{4}[/tex]

Hence, the value of m is

[tex]\frac{-10}{4}[/tex]

and we can also apply m=[tex]\frac{-5}{2}[/tex]

if [tex]\frac{-5}{4}+m=\frac{-15}{4}\\\\m=\frac{-15}{4}+\frac{5}{4}\\\\m=\frac{-10}{4}\\\\m=\frac{-5}{2}[/tex]

And

[tex]m+2=-0.5\\\\m=-0.5-2\\\\m=-2.5\\\\m=\frac{-5}{2}[/tex]

Therefore, Second, third, fifth and sixth options are correct.

Adelia had 4 dollars. She found 50 cents and then bought a snack. She ended up with 6 quarters. Which expression equals the number of dollars Adelia spent on the snack?

Answers

Answer:

3 Dollars

Step-by-step explanation:

$4+.50cents=4.50

6 quarters is $1.50

4.50-1.50=3 dollars

So, I got this question for my Imagine Math, and here is what I got;

4+0.50−1.50.

Why; I got this because 4+0.50 is 4.50 and then 4.50-1.50 is 3.

Hopes this helps.

Write a function rule for the data in the table. Determine if it's a direct variation, inverse variation or neither. Last, determine the value of x if y=10.

Answers

I'm assuming you meant to say "graph" instead of "table".

The function rule is y = x+2 because the y intercept is 2, where the graph crosses the y axis. The slope is 1 meaning we move 1 unit up and 1 unit to the right each time. You can use the slope formula to determine the slope, or simply make this observation of rise vs run.

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

Because this line doesn't go through the origin, and because it's not in the form y = k*x, this means we do not have a direct variation equation.

We do not have an inverse variation equation either because it is not in the form y = k/x or x*y = k. A visual indication of this is that the graph isn't a curved hyperbola.

Therefore, this function is neither direct variation nor inverse variation

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

Plug in y = 10 and solve for x

y = x+2

x+2 = y

x+2 = 10

x+2-2 = 10-2

x = 8

The value of x is 8

So if x = 8, then y = 10 meaning that (x,y) = (8,10) is on this blue diagonal line.

A rectangular flying carpet is 1 1/2 m wide and 2 m long what is the area of the carpet

Answers

Hi there! :)

Answer:

The area of the carpet is 3m².


Step-by-step explanation:

First off, the formula to calculate the area of a rectangle is this: A = L × W

Where "A" is the area, "L" the length and "W" the width.

Now that you have that, replace all the information you know in the equation in order to find the value of "A", which is what we are looking for:

- Just keep in mind that 1 1/2 is the same thing as 1.5

- The term "wide" is used to give the "width"

- The term "long" is used to give the "length"


A = L × W

A = 2 × 1.5

A = 3


There you go! I really hope this helped, if there's anything just let me know! :)

The area of the rectangular flying carpet is [tex]$\frac{15}{4} \text{ m}^2}$[/tex] or [tex]3.75 { m}^2}[/tex]

To find the area of a rectangle, one multiplies the length by the width. The width of the carpet is given as [tex]$1 \frac{1}{2}$[/tex] meters, which can be expressed as a fraction [tex]$\frac{3}{2}$[/tex] of meters. The length of the carpet is given as 2 meters.

Using the formula for the area of a rectangle [tex]A = l \times w$,[/tex] where [tex]$l$[/tex] is the length and [tex]$w$[/tex] is the width, we substitute the given values:

[tex]\[ A = 2 \text{ m} \times \frac{3}{2} \text{ m} \][/tex]

[tex]\[ A = \frac{2 \times 3}{2} \text{ m}^2 \][/tex]

[tex]\[ A = \frac{6}{2} \text{ m}^2 \][/tex]

[tex]\[ A = \frac{15}{4} \text{ m}^2 \][/tex]

[tex]\[ A = 3.75 \text{ m}^2 \][/tex]

Therefore, the area of the carpet is [tex]$\frac{15}{4}$[/tex] square meters or 3.75 square meters.


What is the value of the remainder if 10x^4 – 6x^3 + 5x^2 – x + 1 is divided by x – 3?

Answers

Answer: 691

Step-by-step explanation:

There are 3 different ways to find the remainder.  I am not sure which method you are supposed to use, so I will solve using all 3 methods.

Long Division:

         10x³ + 24x² + 77x + 230

x - 3 ) 10x⁴ -  6x³  + 5x²   - x  +  1

      - (10x⁴ - 30x³)   ↓       ↓      ↓

                   24x³ + 5x²     ↓      ↓

               - (24x³ - 72x²)   ↓      ↓

                              77x²  - x       ↓

                         -  (77x² - 231x)  ↓

                                        230x + 1

                                     - (230x - 690)

                                                    691 ← remainder

Synthetic Division:

x - 3 = 0   ⇒  x = 3

3  |  10     -6        5       -1        1

   |   ↓      30     72    231    690

      10      24     77    230   691 ← remainder

Remainder Theorem:

f(x) = 10x⁴ - 6x³ + 5x²  - x  +  1

f(3) = 10(3)⁴ - 6(3)³ + 5(3)² - (3)  +  1

     =  810   - 162    + 45    -  3  +  1

     = 691

Which graph shows the solution to the system of inequalities below?

x+y<3

-5x+2y<10

Answers

Answer:

The last graph

Step-by-step explanation: On edge.

Answer:

D or the last graph

Step-by-step explanation:

Edge 2022

What function equation is represented by the graph?


f(x)=−2x−2

f(x)=2x−3

f(x)=−2x−3

f(x)=2x−2

Answers

9514 1404 393

Answer:

  (b)  f(x) = 2^x -3

Step-by-step explanation:

The horizontal asymptote is y=-3, eliminating the first and last choices.

The curvature is upward, eliminating the third choice.

The graph is a representation of ...

  f(x) = 2^x -3


Select the points that lie on the function h( x ) = 3 x 2 .

(1, 3)
(1, 9)
(-1, -3)
(-1, 3)

How would i solve this? *15 ponits

Answers

Answer:

(1, 3)

(-1, 3)

Step-by-step explanation:

h(x) = 3x^2

Let x =1

h(1) = 3 * (1)^2

    = 3(1)

    = 3

So if the input is 1 the output is 3

h(-1) = 3 * (-1)^2

     = 3 *1

If the input is -1 the output is 3

Answer:(1,3) and (-1,3)

Step-by-step explanation:

Select the true statement plzzzz need help ASAPPPPP

Answers

Answer:

Correct choice is B

Step-by-step explanation:

All three functions are increasing when x is increasing. You can find values of each function when x is "enough large". For example, at x=100,

1. linear function: [tex]y=10\cdot 100=1,000.[/tex]

2. exponential function: [tex]y=5^{100}\approx 0.8\cdot 10^{70}.[/tex]

3. quadratic function: [tex]y=4\cdot 100^2+5\cdot 100=40,500.[/tex]

As you can see,  when x approaches positive infinity, the exponential function will exceed both the linear and the quadratic functions.

Also you can use graphical method to get from the attached diagrams result. When x approaches positive infinity, the exponential function will exceed both the linear and the quadratic functions.

Correct choice is B.

m∥n, m∠1 = 65°, m∠2 = 60°, and m∠6 = 85°. What is m∠DBC?

Answers

Answer:

∠DBC = 40°

Step-by-step explanation:

We are given a figure where we know that the angle m∠1 = 65°, m∠2 = 60° and m∠6 = 85°. With the help of these given measures of the angles, we are to find the measure of the angle m∠DBC.

Since the sum of angles in a triangle is equal to 180 degrees, so:

∠1 + ∠2 + ∠3 = 180

∠3 = 180 - (65 + 60)

∠3 = 55°

Also ∠6 and ∠B are alternate interior angles so if ∠6 = 85° then ∠B is also = 85°.

Now that we know ∠3 and ∠B, we can find ∠DBC:

∠DBC = 180 - (85 + 55)

∠DBC = 40°

Answer:40


Step-by-step explanation:

See angle 1 = 65°

Angle 2 = 60°

We know in a triangle all angle count 180°

So angle 3 = 55°

Now in a straight line all angle count 180°

So angle DBC + angle 3 + remaining angle along the line m will count 180°

Now angle 6 and remaining angle along the line m will be equal as 'm' ?and 'b' are parallel lines and t is intersecting them so it subtend equal angles.

Angle 6 = 85° so remaining angle along the line m is also 85°

We know angle DBC + angle 3 + rem. angle = 180°

Or 55° + 85° + angle DBC = 180°

Therefore, angle DBC = 40°

Hope it helps!!!

Ava has 20-foot length of wire.She cuts the wire into 6 pieces of equal length.The length of each piece of wire will fall between which two whole-number lengths?

Answers

Final answer:

When a 20-foot length of wire is cut into 6 pieces of equal length, each piece would be approximately 3.33 feet long. Rounding to the nearest whole numbers, this means the length of each piece will fall between 3 feet and 4 feet.

Explanation:

To find the length of each piece of wire when a 20-foot length of wire is cut into 6 pieces of equal length, you divide the total length by the number of pieces. So, you calculate:

Divide the total length of wire (20 feet) by the number of pieces (6).20 feet / 6 pieces = approximately 3.33 feet per piece.

Since we're looking for whole-number lengths that the length of each piece falls between, we can round 3.33 feet down to the nearest whole number (3 feet) and up to the next whole number (4 feet). Thus, the length of each piece will fall between 3 feet and 4 feet.

A farmer uses two types of fertilizers. A 50-lb bag of Fertilizer A contains 8 lb of nitrogen, 2 lb of phosphorus, and 4 lb of potassium. A 50-lb bag of Fertilizer B contains 5 lb each of nitrogen, phosphorus, and potassium. The minimum requirements for a field are 440 lb of nitrogen, 260 lb of phosphorus, and 360 lb of potassium. If a 50-lb bag of Fertilizer A costs $30 and a 50-lb bag of Fertilizer B costs $20, find the amount of each type of fertilizer the farmer should use to minimize his cost while still meeting the minimum requirements.

Answers

Answer: Fertilizer A = 20, Fertilizer B = 56

Step-by-step explanation:

Step 1: Set up the equations

[tex]\begin{array}{c|c|c|c}& FertilizerA&FertilizerB&Quantity Required\\Nitrogen&8&5&440\\Phosphorous&2&5&260\\Potassium&4&5&360\\\end{array}[/tex]

Nitrogen: 8x + 5y ≥ 440

Phosphorous: 2x + 5y ≥ 260

Potassium: 4x + 5y ≥ 360

Step 2: Find the vertices

It is easiest to graph the equations to find the vertices. (see attachment).  You can also solve each system of equations to find the intersected points.

The following satisfy the "greater than or equal to" requirement:

(0, 88) → y-intercept of Nitrogen equation(20, 56) → intersection of Nitrogen and Potassium equations(50, 32) → intersection of Phosphorous and Potassium(130, 0) → x-intercept of Potassium

Step 3: Use vertices in cost function C(x) to find the minimum

C(x) = $30x + $20y

(0, 88): $30(0) + $20(88) = $1760

(20, 56): $30(20) + $20(56) = $1720    ← This is the minimum!

(50, 32): $30(50) + $20(32) = $2140

(130, 0): $30(130) + $20(0) = $3900

The minimum cost occurs when 20 bags of Fertilizer A and 56 bags of Fertilizer B are purchased.  

Final answer:

This is a linear programming problem. The farmer needs to solve the system of inequalities that define the minimum nutrient requirements for the field and the cost function of the fertilizers to determine the least expensive way to meet the nutrient requirements.

Explanation:

The subject of this problem lies in the realm of linear programming—a mathematical method for determining a way to achieve the best outcome in a given mathematical model.

To solve this problem, we need to find the quantities of Fertilizer A and Fertilizer B that meets the minimum requirements for the field at minimum cost. Let x be the quantity of Fertilizer A and y be the quantity of Fertilizer B. Then, based on the information provided in the problem, we can set up the following inequalities:

Nitrogen: 8x + 5y ≥ 440Phosphorus: 2x + 5y ≥ 260Potassium: 4x + 5y ≥ 360

Given that a 50-lb bag of Fertilizer A costs $30 and a 50-lb bag of Fertilizer B costs $20, the total cost of the fertilizers can be represented by the equation C = 30x + 20y, where C is the total cost.

The goal is to minimize the cost C = 30x + 20y, subject to the constraints above.
Using graphing or mathematical software, we can construct a graph of these inequalities and find the solution that lies on the feasible region where the cost is minimized.

The farmer needs to solve this system to determine the least amount of each fertilizer to use while still meeting the minimum soil nutrient requirements.

Learn more about Linear Programming here:

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Find the coordinates of the midpoint of the segment whose endpoints are H(5, 13) and K(7, 5). (12, 18) (9, 7) (2, 8) (6, 9)

Answers

Answer: D. (6, 9)

Step-by-step explanation:

Midpoint is the "average" of the x's and y's:

Given: (5, 13) and (7, 5)

Midpoint: [tex](\dfrac{5+7}{2},\dfrac{13+5}{2})[/tex]

             = [tex](\dfrac{12}{2},\dfrac{18}{2})[/tex]

              = (6, 9)

Answer: (6, 9)

Step-by-step explanation:

In the coordinate plane shown, how far apart are points B and D? Explain how you can use the Pythagorean theorem to determine this.

Answers

Answer:

10.3 units

Step-by-step explanation:

From the given graph, we can see the coordinates of the points B (-2, 4) and D (3, -5).

To use the Pythagorean Theorem, we must have a right angled triangle. So we can select a point X (3, 4) to calculate the distance between B and D using the Pythagoras Theorem.

BX = 5, XD = 9

BD = [tex]\sqrt{BX^2+XD^2}[/tex]

BD = [tex]\sqrt{(5)^2+(9)^2} =\sqrt{106} =10.29[/tex]

Therefore, the points B and D are 10.3 units apart.

Which equation can be used to solve the following word problem? Seth has 8 more nickels than dimes, and the total value of his coins is $2.35. How many nickels does he have? Let n represent the number of nickels.

Answers

Answer:

Seth has 21 nickels

Step-by-step explanation:

Let n represent the number of nickels. Since Seth has 8 more nickels than dimes, then (n-8) is the number dimes.

Nickel is worth 5 cents and dime is worth 10 cents.  Thus, n nickels are worth 5n cents and (n-8) dimes are worth 10(n-8) cents. The total value of Seth's coins is $2.35 that is 235 cents, then

[tex]5n+10(n-8)=235.[/tex]

Solve this equation:

[tex]5n+10n-80=235,\\ \\15n=235+80,\\ \\15n=315,\\ \\n=21.[/tex]

Andy joins a social networking site. After day three, he has 25 friends; after day eight, he has 40 friends. Write the equation to show the number of friends he will have on day 18 if he continues to add the same number of friends each day.

Answers

Answer:

Point slope intercept form: The equation for line is given by; [tex]y-y_1=m(x-x_1)[/tex] ......[1] ; where m is the slope and a point [tex](x_1, y_1)[/tex] on the line.

Let x represents the number of days and y represents the number of friends.

As per the statement:  After day three, he has 25 friends; after day eight, he has 40 friends.

⇒ We have two points i.e,

(3, 25) and (8, 40)

First calculate slope(m);

[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]

Substitute the given values we get;

[tex]m = \frac{40-25}{8-3}=\frac{15}{5}[/tex] = 3

now, substitute the given values of m=3 and a point (3, 25) in [1] we get;

[tex]y-25=3(x-3)[/tex]

Using distributive property; [tex]a \cdot(b+c) = a\cdot b + a\cdot c[/tex]

[tex]y-25 = 3x - 9[/tex]

Add 25 on both sides, we get;

[tex]y-25+25 = 3x - 9+25[/tex]

Simplify:

y =3x + 16

if  x = 18 days, then;

y = 3(18) + 16 = 54+16 = 70

Therefore, he will have on day 18, if he continues to add the same number of friends each day is, 70 friends.

Jerry is a judge. He hears 5 cases every 2\dfrac382 8 3 ? hours. Jerry hears cases at a constant rate. How many cases does he hear per hour?

Answers

Answer:

[tex]\frac{40}{19}\text{ or }2\frac{2}{19}[/tex] cases per hour.

Step-by-step explanation:

We are told that Jerry hears 5 cases every [tex]2\frac{3}{8}[/tex] hours.

To find the number of cases that Jerry hears per hour let us divide 5 by [tex]2\frac{3}{8}[/tex].

[tex]\text{Jerry hears cases per hour}=5\div 2\frac{3}{8}[/tex]

Let us convert our mixed fraction into improper fraction.

[tex]\text{Jerry hears cases per hour}=5\div \frac{19}{8}[/tex]

Since dividing a number by a fraction is same as multiplying the number by the reciprocal of the fraction.

[tex]\text{Jerry hears cases per hour}=5\times \frac{8}{19}[/tex]

[tex]\text{Jerry hears cases per hour}=\frac{40}{19}[/tex]

[tex]\text{Jerry hears cases per hour}=2\frac{2}{19}[/tex]

Therefore, Jerry hears [tex]\frac{40}{19}\text{ or }2\frac{2}{19}[/tex] cases per hour.

The pressure of a gas p(v) varies inversely with the volume of the gas v. The pressure of a gas measures 25 kg/cm^2 when its volume is 200cm^2. Which equation can be used to find the pressure of the gas when the volume is changed?
A.p(v)=8/v
B.p(v)=8v
C.p(v)=5000/v
D.p(v)=5000v

Answers

Answer:

C.p(v)=5000/v

Step-by-step explanation:

Got it right on the test.

The equation that can be used to find the pressure of the gas when the volume is changed is P(v) = 500/v

Given:

p(v) = pressure of a gas

v = volume of the gas

P(v) varies inversely with v

let

k = constant of proportionality

The equation:

P(v) = k/v

If P(v) = 25 kg/cm² and v = 200cm²

Therefore,

P(v) = k/v

25 = k / 200

25 × 200 = k

k = 5,000

substitute the value of k into the equation

So,

P(v) = 500/v

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