Simplify (1/2 pt each)

-2^3=

8^2=

9^-1=

(-4)^-2=

HELPP PLSSS

Use the graph of the sine function y=2sinθ shown below

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers