Which expression does not have the value 1/81 a. 3-2 • 3-2 b. 3-4 c. (3-2)2 d. -32 • -32

I see.

The correct way to write these is

A: 3^-2 * 3^ - 2 = 1/9 * 1/9 = 1/81 and this one is fine.

B: 3^-4 = (1/3)^ 4 = 1/3 * 1/3 * 1/3 * 1/3 = 1/81 and this one works.

C: (3^-2)^2 = (1/9)^2 = 1/81 and this one also works.

D: No matter how you interpret this, it is not going to equal 1/81. I think it might be written as -(3)^2 * - (3)^2 = - 9 * - 9 = 81 which is not correct.

D

73.0769230769% of the games were won

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.