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3 years ago

15

A cube has side length a. The side lengths are decreased to 20% of their original size. Write an expression in simplest form for

the volume of the new cube in terms of a.

1 answer:

Tanya [424]3 years ago

5 0

Here is the expression:
(0.8a)^3. Hope it help!

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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

Hatshy [7]

Answer:

The change in the area of the rectangle is 0 square feet

Step-by-step explanation:

To solve this problem we have to calculate the area of the two rectangles that give us

first we have to know the formula to calculate the area of a rectangle

a = area

l = length = 12ft

w = width = 5ft

a = l * w

we replace the known walues

a = 12ft * 5ft

a = 60ft²

we do the same with the other rectangle, but first we have to calculate its sides

w = 5ft - (5ft * 20/100)

w = 5ft - 1ft

w = 4ft

l = 12ft + (12ft * 25/100)

l = 12ft + 3ft

l = 15ft

a2 = 15ft * 4ft

a2 = 60ft²

to calculate the change in the area we subtract (a - a2)

a - a2 =

60ft² - 60ft² = 0ft²

3 0

3 years ago

A bank offers a 3% annual interest rate for a savings account. Hannah puts $6,000 into an account to save for college. How much

Cloud [144]

(103/100)×6000
=¢6180

8 0

3 years ago

Let cos A = <img src="https://tex.z-dn.net/?f=1%2F%5Csqrt%7B10%7D" id="TexFormula1" title="1/\sqrt{10}" alt="1/\sqrt{10}" align=

Rzqust [24]

Umm i’m sorry but what is the question here .

This isn’t english

3 0

2 years ago

3.7 x 10 to the power of 2

bekas [8.4K]

Answer:

1369

Step-by-step explanation:

3.7 x 10 = 37 x 37 = 1369

8 0

3 years ago

Matias preformed an operation with 7.6 and a number. He ended up moving the decimal point in 7.6 two places to the left. Matias

olga2289 [7]

Answer:

Matias divided 7.6 by 10 raised to the power of -2.

Step-by-step explanation:

Given : Matias preformed an operation with 7.6 and a number. He ended up moving the decimal point in 7.6 two places to the left.

To find : Matias divided 7.6 by 10 raised to the power of ?

Solution :

Matias preformed an operation with 7.6 and a number.

He ended up moving the decimal point in 7.6 two places to the left we have to multiply it with 0.01

i.e. $7.6\times 0.01=\frac{7.6}{100}=0.076$

So, Matias divided 7.6 by 10 raised to the power of -2.

5 0

3 years ago