The radius of this ball is 15 inches. which equation gives the ball's surface area, in square inches?

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees