What is the side length of a cube that has a volume of 729 in.³

Mathematics

2 answers:

lions [1.4K]3 years ago

6 0

V = a^3
729 = a^3
9^3 = a^3
9 = a

answer. side length = 9 in

docker41 [41]3 years ago

5 0

The volume formula of a cube is v=a³
Since v=729, cube root it.
v= $\sqrt[3]{729}$
$\sqrt[3]{279} = 9$
Each side of the cube is 9 in

You might be interested in

How do I simplify the following to "a+bi" form: (1+2i)^3

damaskus [11]

Answer:

Expand it.

(1+2i)^3 is equal to (1+2i)(1+2i)(1+2i).

Multiply everything out (being sure to multiply <em>every</em> term. (1+2i) * (1+2i) = 1+2i+2i+4i^2.

i is the square root of negative one, so i^2 is just -1. 1+2i+2i-4 is what you get from the first two, so now simplify that:

1-4 + 2i+2i = (-3+4i) and now multiply that by (1+2i):

(-3+4i) * (1+2i) = -3 - 6i +4i +8i^2.

Simplify again, and the answer is: -11-2i

Step-by-step explanation:

I hope this helps - really my only tip is don't spend time thinking about what i is, that just hurts your brain. Just remember that i^2 is equal to negative one, and treat it like regular multiplication and you will be fine.

7 0

2 years ago

Taking a final exam rn and im stuck on this question, pls help ;-;

Effectus [21]

False true true.....

5 0

3 years ago

Read 2 more answers

Find the slope of the line that passes through (-1,6) and (15,6)

svp [43]

Slope = $\frac{Y2 - Y1}{X2 - X1}$
------------------------
6 - 6 = 0
15 - (-1) = 16
0 / 16 = 0
--------------------------------
You have a slope of 0, meaning that this is a straight horizontal line

3 0

3 years ago

15-3(2+6 times -3) <br> What would this simplify to?

pickupchik [31]

-45 because of PEMDAS

8 0

3 years ago

Read 2 more answers

Write an expression that shows how to use the halving and doubling strategy to find 28×50

eduard

Halving: 28 to 14 doubling: 50 to 100 answer: 14 × 100 = 1400

4 0

3 years ago