All the edges of a cube are shrinking at the rate of 3 cm/sec. How fast is the surface area decreasing when each edge is 13 cm?

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

$9.41

step-by-step explanation:

c. side angle side. u shares the same sides

answer:

c) the x-coordinate of the center of the circle increases by 3