What is -a ^-2 if a=-5

a. -25
b.25
c.-1/25
d.1/25

-1/25

Step-by-step explanation:

- (a)^-2

Let a = -5

- (-5)^-2

-1/(-5)^2

-1/25

  -1/25

Step-by-step explanation:

-(-5)^-2 = -1/(-5)^2 = -1/25

hiking down a winding trail.

step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.