Mark wants to calculate the circumference of a circle with a radius of 7 centimeter. Which expression represents the circumference of the circle? 2 x 3.5 x π
2 x 14 x π
72 x π
14 x π

14 x π

Step-by-step explanation:

The circumference of a circle is 2πr

Here, r is 7.

2 x 7 x π

=> 14π

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

can you post the graph?