Mack wants to calculate the circumference of a circle with a radius of 7 centimeters. Which calculations would give the circumference of that circle?

Choose all that apply.

A
2×7×π

B
2×14×π

C
Solve for C: π=C14

D
Solve for C: 49=C2×π

sorry not sure

step-by-step explanation:

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

the equation of the parallel line would be y = 2x + 9

step-by-step explanation:

to start we need to find the slope of the original line. we can do that by looking at the coefficient of x, which is 2

since the slope of the original line is 2 and parallel lines have the same slope, we know the new line will also have 2 slope. now we can use that along with the point given in point-slope form to get the find equation.

y - y1 = m(x - x1)

y - 5 = 2(x + 2)

y - 5 = 2x + 4

y = 2x + 9