Simplify the expression. Write your answer as a power. (-2.9) x (-2.9)^7

(The seven is the exponent btw)

I’m stuck on this i don’t understand.

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

Which expression is rational? 6. , square root two, square root 14, square root 49