The base of a box is a rectangle. The width of the box is half its length. The height of the box is 0.5m. Find the volume of the box if the area of the base is 1.08m² less than the combined area of the sides.

Answers

Answer 1

Answer:


Step-by-step explanation:

We assume the box is open-top.


If the width of the box is represented by w, then its length is 2w. The area of the base is then w·2w = 2w².


The combined area of the sides is the product of the perimeter of the base, 2(w+2w) = 6w and the height, 0.5, so is 3w.

Since the base area is 1.08 m² less than the lateral area, we have

... 2w² = 3w -1.08

... 2w² -3w +1.08 = 0 . . . . rearrange to standard form

... w² -1.5w +0.54 = 0 . . . make the leading coefficient 1 (divide by 2)

... (w -0.9)(w -0.6) = 0 . . . factor

The width of the box may be either 0.6 meters or 0.9 meters.

The volume is the product of width, length, and height

V = w·2w·0.5 = w²

V = 0.36 m³ . . . or . . . 0.81 m³. . . . . . (there are two possible answers)


Related Questions

A man invested $500 in the stock market. During the first week, he gained $200. During the second week, the market was strong and the man doubled his money. During the third week, stocks fell, and the man lost $650. How much money did the man have at the end of three weeks?

Answers

He would have $750 at the end of three weeks
  500 + 200 = 700        700  x  2 + 1400
1400 - 650 = 750
$750 at the end of three weeks

After the police track the monkey and his kidnapper for a while, something changes. After one hour, the location is 32 miles away from the zoo. But after 70 minutes, or 76 hours, the location is still 32 miles away. Write an equation in point-slope form that represents the distance of the monkey and kidnapper, assuming they are still traveling in a linear pattern.

Answers

I wanted the point and I'm time traveler from the year 2035 

Can someone please explain the concept of Algebra? Just give me some basic tips so I can solve questions like the ones in the picture. Thanks in advance!

Answers

Algebra basically consists of mathematical operations, but using letters. To solve the exercises you only have to say that is the variable X

for Example: 4x= 8
                       x= 8 divide by 4
                       x= 2
In particular to the equations above, your goal is to find the value of x.

Step 1: isolate the variable (in this case,x).
Isolating the variable makes you narrow down what you are solving for.

Step 2: solve for the variable.
You can solve for the variable by making x alone (meaning with no coefficient).

If you have any questions on how you can do these while it still being mathematically legal, let me know and I will help.

Identify the graph of 4+2i. Is the point at (2,4), (4,2), (4,-2), or (-4,2)?

Answers

Think of 4+2i as the point (4,2) in the x-y plane. Plot it. Done.

The graph of the complex number 4 + 2i corresponds to the point (4, 2) on the complex plane, with 4 as the real part and 2 as the imaginary part.

To identify the graph of the complex number 4 + 2i, you can think of it as a point on the complex plane. In the complex plane, the horizontal axis represents the real part of a complex number, and the vertical axis represents the imaginary part. So, for the complex number 4 + 2i, the real part is 4, and the imaginary part is 2.

Now, let's locate this point on the complex plane:

The real part (4) corresponds to the horizontal axis.

The imaginary part (2) corresponds to the vertical axis.

So, the point (4, 2) on the complex plane represents the complex number 4 + 2i. Therefore, the correct answer is (4, 2).

In summary, the graph of the complex number 4 + 2i corresponds to the point (4, 2) on the complex plane, where 4 is the real part, and 2 is the imaginary part.

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Find the 5th term of the expansion of (x + y)9.

Answers

(r + 1)th term of (x + y)^n  = nCr x^(n-r)y^r

so here we have  9C4 x^(9-4)y^4

=  126x^5y^4  Answer

Frank and Latoya each ran every day as part of an exercise routine. Frank ran
3 miles each day for x days. Latoya ran 5 miles each day for y days.
The total number of miles that Frank ran is at least the total number of miles that Latoya ran. Write an inequality describing this relationship.

Answers

3 miles each day for x days is 3x
5 miles each day for y days is 5y
Frank ran at least as many miles as Latoya is 3x >/= 5y

Evaluate 4-(3+2)^2

A. -21
B. -9
C. 5
D. 1

Answers

The answer is A. -21

Simplify the expression shown.3x + 2 – 3x + 7 +5xwhat is the coefficient in the simplified expression?

Answers

Final answer:

The expression 3x + 2 - 3x + 7 +5x simplifies to 5x

when the terms containing variable 'x' are combined. Therefore, the coefficient in the simplified expression is 5.

Explanation:

The given expression is 3x + 2 – 3x + 7 +5x.

To simplify this expression, we need to combine like terms, which in this case are terms with x.

The like terms are 3x, -3x, and 5x. When added together, they simplify to: 3x - 3x + 5x = 5x.

The number part of the term, excluding x, is referred to as the coefficient. So the coefficient of x in this simplified expression is 5.

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Find the missing values x and y

Answers

1) The supplement of 72° is 180°-72° = 108° . (bottom // with right secant)

2) (3z + 18)° = 108° ( in a para llelogram opposite angles are equal)
Then 3z+18 = 108 and 3z° = 90° → z = 30°

3) (3y)° = 108° (vertical angles) , 3y° = 108 and y = 36°

4) 3y = x° (corresponding angles) but 3y = 108, then x = 108°

(Mind you I am calculating the ∠ x, y, and z. To find the angles of the parallelogram replace x,y and z by their respective values

to construct a line parallel to a given line m to a point not on m, you need to know how to construct_______angles?
A. right
B. acute
C. congruent
D. obtuse

Answers

It would be either C or A, sorry I cant help anymore than that
You need to construct a congruent angel because parallel line and the same

A prepaid cell phone charges a preset number of minutes to use text messaging. The graph represents y, the number of minutes used for x, the number of text messages sent and received. Is there a direct variation? Which equation represents the relationship? Yes, y = 2x. Yes, y = 20x. No, y = x + 10. No, y = x + 20.

Answers

Answer:

Yes, y = 2x

Step-by-step explanation:

I took it on edge and got it right!!!

There will be definitely a direct relation and the relation will be y = 2x.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b, will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

Proportion is very useful to set relations between variables.

Given that the prepaid cell phone charges a preset number of minutes to use text messaging. The graph represents y, the number of minutes used for x, and the number of text messages sent and received

so it is clear that cell phone charge upon the number of minutes to use text messaging hence y = 2x will be the correct answer.

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graph y> 1-3x, I really need someone to answer this.

Answers

the dotted line is the line itself to be drawn

order the bussiness owners up from youngest to oldest... Mark: 23 3/8 Steve: 23.45 Jeff: 23 1/4

Answers

jeff,
mark, then
steve...
Jeff is the youngest. Mark is in the middle. Steve is the oldest.

Marlene rides her bicycle to her friend​ jon's house and returns home by the same route. marlene rides her bike at constant speeds of 9 mph on level​ ground, 6 mph when going uphill and 18 mph when going downhill. if her total time riding was 1 ​hours, how far is it to​ jon's house?

Answers

To solve the problem:

Let f = distance one way distance on level ground


Let h = distance rode on the hill


Write a time equation; where Time = distance/speed:



level time + uphill time + downhill time + level time = 1hr


f/9 + h/6 + h/18 + f/9 = 1 hr



Multiply equation by 18 to get rid of the denominators


 

2f + 3h + h + 2f = 18


4f + 4h = 18


Simplify by dividing this by 4


f + h = 4.5 miles is took her to get to Jon’s house.

Which percent is equivalent to 2.5?


Answers

Answer:

250%

Step-by-step explanation:

The value of percentage of a number 2.5 is,

⇒ 250%

We have to given that,

To change a number 2.5 into percent.

Since, A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Now, We can change it as,

⇒ 2.5 × 100%

⇒ 250%

Therefore, The value of percentage of a number 2.5 is,

⇒ 250%

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For what values of k does the function y = cos kt satisfy the differential equation 4y'' = −9y? (enter your answers as a comma-separated list.)

Answers

Final answer:

The values of k that satisfy the equation 4y'' = -9y for the function y = cos kt are k = ±3/2.

Explanation:

This is a question in differential equations, where we are given a cosine function y = cos kt and asked to find values of k that satisfy the given equation 4y'' = −9y.

Recall, the second derivative of cos kt is -k²cos kt which is equivalent to -k²y.

Substituting that into the differential equation, we get 4(-k²y) = -9y. If we simplify this, we get k² = 9/4. Therefore, the values of k which satisfy the given equation are k = ±3/2.

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The values of k that satisfy the differential equation 4y'' = −9y are k = ±3/2.

We can find the values of k that satisfy the differential equation 4y'' = −9y by solving for k.

First, we can rewrite the differential equation in its general form:

ay'' + by' + cy = 0

where a = 4, b = 0, and c = -9.

Next, we can find the characteristic equation:

ar^2 + br + c = 0

Plugging in the values of a, b, and c, we get:

4r^2 + 0r - 9 = 0

Solving for r, we get:

r = ±3/2

Therefore, the general solution to the differential equation is:

y = Acos(3t/2) + Bsin(3t/2)

where A and B are arbitrary constants.

Finally, we can substitute y = cos kt into the original differential equation and solve for k:

4k^2cos kt + 9cos kt = 0

Dividing both sides by cos kt, we get:

4k^2 + 9 = 0

Solving for k, we get:

k = ±3/2

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Write the inverse of the conditional statement. If a polygon is regular, then it has congruent angles and congruent sides.

A. If a polygon has congruent angles and congruent sides, then it is regular.
B. If a polygon does not have congruent angles and congruent sides, then it is not regular.
C. A polygon has congruent angles and congruent sides, if and only if, it is regular.
D. If a polygon is not regular, then it does not have congruent angles and congruent sides.

Answers

The answer would be D because it states the direct opposite of the original statement. Hope this helps!

Answer:

The answer is option D.

Step-by-step explanation:

A conditional statement is a statement where we can symbolize the given statements in a p and q parts. And this contains if-then clause. It says, if p, then q. Here p is a hypothesis and q is a conclusion. Inverse of a statement means the negative form of the statement in the same order. If not p, then not q.

Given statement is :

If a polygon is regular, then it has congruent angles and congruent sides.

The inverse is :

If a polygon is not regular, then it does not have congruent angles and congruent sides.

Suppose your friend says the line y=-2x +3 is perpendicular to the line x+2y=8. Do you agree? Explain.

Answers

No because if they were perpendicular their slopes would be opposite reciprocals
if they are perpendicular then the product of their slope will = -1

y = 2x + 3    has slope of 2   ( because of the '2x')

x + 2y = 8
2y = -x + 8

y = -0.5x - 4

2 * -0.5  = -1    so they are perpendicular

So the friend was right

There are 12 girls and 16 boys and Javier's math class or 26 girls and 14 boys and Javier's core class is the race ratio of girls to boys in the two classes equivalent

Answers

No the ratios are not equivalent.
[tex] \frac{12}{16} [/tex] simplifies to [tex] \frac{3}{4} [/tex]

And  [tex] \frac{26}{14} [/tex] simplifies to [tex] \frac{13}{7} [/tex]

They are not equivalent in simplest form, so they are not equivalent. 

A train travels from Chicago,Illinois to Los Angeles, ca in 1 day and 15 minuets. The distance between the two cities is 2,015.3 miles. How fast was the train going on average

Answers

so speed = distance / time
15 minutes is 0.25 of an hour
24 hours in a day

2015.3/24.25

83.1051546 mph
or 83 mph



The hypotenuse of a right triangle is 20 centimeters, and the shorter leg is 12 centimeters. Find the length of the other leg. 2 cm 4 cm 16 cm

Answers

if the shorter leg is 12 the only answer larger than 12 is 16.

The length of the other side is : 16cm

What is a right-angled triangle?

A right-angled triangle is a triangle with one of its angle 90 degrees and has two adjacent sides and a hypotenuse which is the longest side.

Analysis:

Since it is a right-angled triangle, we use Pythagoras theorem

[tex]hypotenuse^{2}[/tex] = [tex]opposite^{2}[/tex] + [tex]adjacent ^{2}[/tex]

hypotenuse = 20cm, opposite = 12cm, adjacent = xcm

[tex]20^{2}[/tex] = [tex]x^{2}[/tex] + [tex]12^{2}[/tex]

[tex]x^{2}[/tex] = 400 - 144

[tex]x^{2}[/tex] = 256

x = [tex]\sqrt{256}[/tex] = 16cm

In conclusion, the length of the other side is 16cm

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What’s the measure of LMF

Answers

LMF = 17x

so 17x + 3x =180

20x = 180

x = 180/20 = 9

17 *9 = 153

angle LMF = 153 degrees

What does y=mx+b the m mean?

Answers

slope hoped this helped!!!!!!!!!
M in reference to [tex]y=mx+b[/tex] is the number you multiply by X to get the  slope of the line equation.




if -7k=-42, then k=6

Answers

so it's -42/-7=6

because minus and minus gives you a positive answer you just put 6 instead of -6

A rose garden is designed by joining a rectangle and a semicircle, as shown below. The rectangle is 24ft long and 18ft wide. If the gardener wants to build a fence around the garden, how many feet of fence are required?

Answers

Without the semicircle the perimeter would be 84 ft 

Because you would add:
24 + 24 + 18 + 18 = 84ft

If you multiplied 18 by 24 you'd get area not perimeter.

♥ Hope I helped ♥ 

According to the given rectangle, approximately 112.27 feet of fence are required to enclose the rose garden.

The perimeter of a rectangle is the sum of all its sides. In this case, the rectangle has two sides of length 24 feet and two sides of length 18 feet.

Therefore, the perimeter of the rectangle can be calculated as follows:

Perimeter of rectangle = 2 * (Length + Width)

= 2 * (24 ft + 18 ft) = 2 * 42 ft = 84 ft.

The circumference of a circle can be calculated using the formula:

Circumference = π * Diameter.

Diameter of the Semicircle: The diameter of the semicircle is equal to the width of the rectangle, which is 18 feet.

Circumference of the Semicircle: Using the formula mentioned above:

Circumference = π * 18 ft

≈ 56.5487 ft (rounded to four decimal places).

Perimeter of the Semicircle: As it is a semicircle, we only need half of the circumference:

Perimeter of semicircle = Circumference / 2

≈ 56.5487 ft / 2 ≈ 28.2744 ft (rounded to four decimal places).

Total Fence Length Required: Now, we add the perimeter of the rectangle and the semicircle to find the total length of fence required to enclose the rose garden:

Total fence length = Perimeter of rectangle + Perimeter of semicircle

= 84 ft + 28.2744 ft ≈ 112.2744 ft (rounded to four decimal places).

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Simplify the expression:

sqrt(4x^2/3y)

Answers

Final answer:

The expression √(4x^2/3y) simplifies to (2x)/√(3y), by taking the square root of the numerator and the denominator separately.

Explanation:

To simplify the expression √(4x^2/3y), we will start by simplifying the square root of a fraction, which can be done by taking the square root of the numerator and the denominator separately. We have √(4x^2) = 2x because the square root of 4 is 2 and the square root of x^2 is x. For the denominator, we have √(3y), which cannot be simplified further without additional information about y. Therefore, the simplified form of the expression is (2x)/√(3y).

Remember, if we encounter an expression with a higher root like a fourth root, we would raise the number to the 0.25 power, which is equivalent to taking the square root twice. While simplifying expressions, we may also need to solve for variables in an equation or work with fractional powers, which represent roots, such as x^2 = √x.

Tarting at home, Emily traveled uphill to the hardware store for 60 minutes at just 6 mph. She then traveled back home along the same path downhill at a speed of 12mph. What is her average speed for the entire trip from home to the hardware store and back?

Answers

6+12=18

18÷2=9

Emilys average speed is 9mph

What is the least possible integer value for which 40% of that integer is greater than 9.6?

Answers

call the unknown integer x translate 40% of that integer as 0.4x the rest is very straight forward: 0.4x > 9.6 divid both sides of the inequality by 0.4 to find that x > 24 The question specifically says greater (not greater than or equal to) so the correct answer is 25 witch is D

please help!!! thx!!!

Answers

i think the answer is b

Recall that 
distance = (speed)*(time)
we're given the speed and time. If we multiply them together, we get the distance

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

The number 1.3 x 10^6 is in scientific notation. The coefficient 1.3 rounds to 1
This means "1.3 x 10^6" turns into "1 x 10^6"

Similarly, with the number 2.8 x 10^3, the coefficient 2.8 rounds to 3
The number "2.8 x 10^3" turns into "3 x 10^3"

When we multiply the numbers (1 x 10^6) and (3 x 10^3), we will
multiply the coefficients 1 and 3 to get 1*3 = 3
add the exponents: 6+3 = 9

So overall, the final answer is 3 x 10^9 indicating that it is choice C
(this is an estimate because we rounded the coefficients)

HELLO,

FORMULA: Ax+By=C
The admission fee at a small fair is $1.50 for children and $4.00 for adults. On a certain day, $5,050 is collected. If 1,000 adults attended the fair, write and solve a linear equation to find the number of children that attended
ANSWER IN STANDARD FORM!

AND IF YOU ARE GOING TO ANSWER JOSEPH OR JURGEON I NEED AN HONEST ANSWER WITH EXPLANATION!

Answers

x=children
y=adults

1.50x+4y=5050
after its solved
x=700 children

x = children

y = adults

1.50x +4.00y =5050

y = 1000

1.50x + 4.00(1000) = 5050

1.50x +4000.00 = 5050

1.50x= 1050

x = 1050 / 1.50 = 700 children atttended

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