3 years ago

If the volume of a cube is 8 cubic centimeters, what is its surface

1 answer:

7 0

$8cm^{3}=2*2*2$

means that one side of cubic is 2cm

cubic has 6 sides

every side is 2*2 = $4cm^{2}$

6*4 = 24

answer number (2) is correct

You might be interested in

Solve the equation 5(x-2)=7(x+4) for x

Sphinxa [80]

Answer:

$\boxed{\bold{x=-19}}$

Step By Step Explanation:

Expand $\bold{5\left(x-2\right): \ 5x-10}$

Expand $\bold{7\left(x+4\right): \ 7x+28}$

$\bold{5x-10=7x+28}$

Add 10 To Both Sides

$\bold{5x=7x+38}$

Subtract 7x From Both Sides

$\bold{5x-7x=7x+38-7x}$

Simplify

$\bold{-2x=38}$

Divide Both Sides By -2

$\bold{\frac{-2x}{-2}=\frac{38}{-2}}$

Simplify

$\bold{x=-19}$

3 0

3 years ago

Could you help answer all these questions please I need it ASAP Its the PDF Pretty please

Tcecarenko [31]

Ayo ur photo don’t work

3 0

3 years ago

Read 2 more answers

I need help with 19. 20.21 My answers were 19.4/96 20.4/42 21.2/72 Am I right

pashok25 [27]

19.（3/4）/（1/32）=24
20.（3/4）/（1/14）=21/2
21.（1/2）/（1/72）=36

3 0

2 years ago

Compute the following products. (4x+5)(4x−5) (4x+5)2

bearhunter [10]

(4x+5)(4x-5) is equal to 16x^2+20x-20x-25
The positive and negative 20x cancel out
Leaving you with: 16x^2 - 25
[S/N this is a pattern that shows up a decent amount. Whenever you have something that looks like (x^2-y^2) it factors out to (x+y)(x-y). It might be helpful to remember]

The next one, (4x+5)2, just follows the distributive property. Multiply both components within the parentheses bye the coefficient of 2: 8x+10

3 0

2 years ago

543,000,000,000,000 in Scientific notation

Zielflug [23.3K]

Answer:

5.43×10^14 or

$5 .43 \times 10^{14}$

Step-by-step explanation:

Scientific notation, the number must always be less than 10, in this case 5.43. The exponent represents how much times I moved the decimal point to the left.

8 0

3 years ago