3. The area of a circle in square units is pi(9x^2 + 42x + 49). Which expression represents
the circumference of the circle in units?
A. pi(3x + 7)
B. 2pi(3x + 7)
C. 2pi(3x + 7)?
D 6x + 14

the amount you'd have after the work is $1.55

step-by-step explanation:

you subtract 95% from $31.

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,