3 years ago

The area of a circle is 9πft^2. What is the circumference in feet?

Mathematics

2 answers:

vlada-n [284]3 years ago

6 0

Answer:

6π ft

Step-by-step explanation:

Area:

A = πr²

Circumference:

C = 2πr

Substitute values in area:

πr² = 9π
r² = 9
r = 3 ft

Circumference is:

C = 2π*3 = 6π

Sholpan [36]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

Which are the solutions of the quadratic equation?

aivan3 [116]

So here just plug values into the quadratic formula x= -b+- sqr b^2-4ac / 2a

6 0

3 years ago

Read 2 more answers

Mariah drives 800 miles to California. The trip takes her 20 hours. She uses 50 gallons of gas on the trip, which cost her $125.

spin [16.1K]

1. 40 mph. 2. 16 3. 2.50

7 0

3 years ago

Read 2 more answers

I need help I’ve been having trouble with this chapter for about a week

Harman [31]

Given:

$3x^2+20x+33$

Find-:

Factorization of the equation.

Sol:

A simple method of factorization is to multiply in first and last order then break it down into parts to make the middle number then.

$\begin{gathered} =3\times33 \\ =99 \end{gathered}$

The factor of 99 is:

So take factor :

$\begin{gathered} 11\text{ and \lparen3}\times3) \\ \\ 11\text{ and 9} \end{gathered}$

Factorization of the equation is:

$\begin{gathered} =3x^2+20x+33 \\ \\ =3x^2+11x+9x+33 \end{gathered}$

5 0

1 year ago

Please help I need help fast

Volgvan

Answer:

it's B! 1/5 x 1/5 x 1/5! it's 1/5 multiplied 3 times

3 0

3 years ago

Read 2 more answers

Complete the following pattern: 4, 7, 10, 13, 16, 19, ___ . A. 35 B.22

scoundrel [369]

Step-by-step explanation:

Simple the pattern is add 3

So next is 22

4 0

3 years ago