3 years ago

The cube of twice a number.

Mathematics

1 answer:

Ksivusya [100]3 years ago

8 0

Answer:

2n^3

Step-by-step explanation:

n^3 represents the cube of the number n; therefore,

"twice the cube of a number" is 2(n^3) or 2n^3

You might be interested in

A computer manufacture a quality check to make sure the computer sound 1004 head what is experimental probability of the compute

FinnZ [79.3K]

Answer:y

Step-by-step explanation:

7 0

3 years ago

What does x equal in 3x + 5 = -7

Stolb23 [73]

Answer:-4

Step-by-step explanation:

Subtract 5 from each side, which leaves you with 3x=-12. Then divide each side by 3. Then that leaves you with x=-4

6 0

3 years ago

Ten-ninths of the sum of 3x, 12y and -6z

jenyasd209 [6]

9/10(3x+12y+-6z) is the expression, simplified it's:
2.7x+10.8y-5.4z

Hope this helped!

8 0

3 years ago

Trash Cans: Elliot's family has a cylinder shaped trash can. It takes the family a few days to fill the trash can up. Elliot wan

atroni [7]

Answer:

$4696.0 in.^3$

Step-by-step explanation:

The trash can has a cylinder shape, so we have to calculate the volume of a cylinder.

The volume of a cylinder is given by the formula

$V=\pi r^2 h$

where

V is the volume

r is the radius of the base

h is the height of the cylinder

In this problem, we have:

h = 24.90 in. is the height of the can

d = 15.50 in. is the diameter of the can, so the radius is half of this value:

$r=\frac{d}{2}=\frac{15.50}{2}=7.75 in.$

Therefore, the volume of the trash can is:

$V=\pi (7.75)^2 (24.90)=4696.0 in.^3$

5 0

3 years ago

If you run for 0.4 hours at 7 mph, how fast should you walk during the next 0.8 hours to have the average speed of 5 mph?

Orlov [11]

4mph

0.4 x 7 mph =2.8 miles - distance run.

Let the required speed =S

[2.8 + 0.8S] / [0.4+0.8] =5, solve for S

S =4 mph - must walk to attain an average of 5 mph, or:

6 miles / 1.2 hours =5 mph

8 0

4 years ago

Read 2 more answers