Which expression is equivalent to (73)−2?

1 over 7 times 7 times 7 times 7 times 7 times 7
7
1 over 7
negative 1 over 7 times 7 times 7 times 7 times 7 times 7

21

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.

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734

there is no picture in order for this question to be answered