All categories

3 years ago

Find the area of a circle whose radius is 12 inches

Mathematics

2 answers:

Elden [556K]3 years ago

5 0

Answer:

A≈452.39

Step-by-step explanation:

A=πr^2

A=π12^2

A=π144

A≈452.39

Kisachek [45]3 years ago

5 0

Answer:

R = 12

Area = pi r²

Area = 22/7 × 12 × 12 = 452.57 in²

You might be interested in

For a fixed amount of gas at a constant temperature, the volume of the gas is inversely proportional to its pressure. The functi

malfutka [58]

The relation between pressure and volume is given as
v = 18000/p
where
v = volume, in³
p = pressure, lb/in²

When the pressure is p = 900 lb/in², then the volume is
v = 18000/900 = 20 in³

Answer: 20 in³

7 0

3 years ago

Read 2 more answers

If I roll a fair die 100 times, about how many times would I roll a 4?

WARRIOR [948]

C. 17

Why:

Divide 100 by 6, round the answer and you should get 17

6 0

3 years ago

Read 2 more answers

The population of a town grows at a rate proportional to the population present at time t. The initial population of 500 increas

Mazyrski [523]

Answer:

The population in 40 years will be 1220.

Step-by-step explanation:

The population of a town grows at a rate proportional to the population present at time t.

This means that:

$P(t) = P(0)e^{rt}$

In which P(t) is the population after t years, P(0) is the initial population and r is the growth rate.

The initial population of 500 increases by 25% in 10 years.

This means that $P(0) = 500, P(10) = 1.25*500 = 625$

We apply this to the equation and find t.

$P(t) = P(0)e^{rt}$

$625 = 500e^{10r}$

$e^{10r} = \frac{625}{500}$

$e^{10r} = 1.25$

Applying ln to both sides

$\ln{e^{10r}} = \ln{1.25}$

$10r = \ln{1.25}$

$r = \frac{\ln{1.25}}{10}$

$r = 0.0223$

$P(t) = 500e^{0.0223t}$

What will be the population in 40 years

This is P(40).

$P(t) = 500e^{0.0223t}$

$P(40) = 500e^{0.0223*40} = 1220$

The population in 40 years will be 1220.

7 0

3 years ago

What number multiplied by itself will give 2704?

finlep [7]

The answer to the question is 52

3 0

3 years ago

Read 2 more answers

Twelve subtracted from two times a number is -70. What is the number?

gtnhenbr [62]

x = 6

Step-by-step explanation:

2 - 12 × x = -70

= -12x +2 = -70

4 0

3 years ago

Find the area of a circle whose radius is 12 inches​

Find the area of a circle whose radius is 12 inches