All categories

3 years ago

5) A cube has height of 3 cm. What is the volume of the cube?

Mathematics

2 answers:

ElenaW [278]3 years ago

6 0

Answer:

V =27cm^3

Step-by-step explanation:

The volume of a cube is given by

V = s^3 where s is the side length

V = 3^3

V =27cm^3

OleMash [197]3 years ago

5 0

Answer:

27 cm³

Step-by-step explanation:

The equation for volume of a cube is V = a³ (a being the edge or height/width)

Plug in 3 for a:

V = (3)³

V = 27 cm³

You might be interested in

What is the measure of side BC?

Aleksandr-060686 [28]

Answer:

I think that the measure of side BC is 2

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Q ÷ 2 -qp ÷ 6; let p = -6 and q = 10

ozzi

Answer:

Step-by-step explanation:

1. Plug in the values.

q=10

p=-6

10÷2-(10)(-6)÷6

2. Use PEMDAS.

10÷2+60÷6

5+10

5 0

3 years ago

If sin x = .42, what is cos x?

34kurt

From the identity,
sin^2(x)+cos^2(x)=1
then
cos(x)=sqrt(1-sin^2(x))
where sin(x) is given as 0.42.

Note that the above answer applies to 0<x<90 degrees

6 0

3 years ago

A certain roller coaster can accommodate 1,600 riders per hour. A digital sign states there are 345 people in line. If you get i

oksano4ka [1.4K]

By multiplying 1,600×345

5 0

3 years ago

Read 2 more answers

Douglas invests money in two simple interest accounts. He invests three times as much in an account paying 14% as he does in an

Rainbow [258]

Douglas invested $ 1300 altogether

Solution:

Let x represent the amount invested in the account paying 14% interest.

Let y represent the amount invested in the account paying 5% interest

He invests three times as much in an account paying 14% as he does in an account paying 5%

Which means,

x = 3y

The simple interest is given by formula:

$S.I = \frac{p \times n \times r}{100}$

Where,

"p" is the principal

"n" is the number of years

"r" is the rate of interest

He earns $152.75 in interest in one year from both accounts combined

Therefore,

Combined S.I = 152.75

n = 1 year

Considering the account earning 14% interest:

$S.I = \frac{3y \times 14 \times 1}{100}\\\\S.I = 0.42y$

Considering the account earning 5% interest:

$S.I = \frac{y \times 5 \times 1}{100}\\\\S.I = 0.05y$

Since, Combined S.I = 152.75

Therefore,

0.42y + 0.05y = 152.75

0.47y = 152.75

Divide both sides by 0.47

y = 325

Therefore,

x = 3y

x = 3(325)

x = 975

how much did he invest altogether?

Amount invested together = x + y = 975 + 325 = 1300

Thus he invested $ 1300 altogether

3 0

3 years ago