If i^2 = -1. , what does i^71 equal? Group of answer choices

- i

i

1

-1

4. find the geometric mean of 4 and 12. 24 8

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *