Find the expected value of the random variable with the given probability distribution.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 150, 120, 136, 180, 158, 175, 124, 162 minimum maximum median upper quartile lower quartile

2pointswhat is the best next step in the construction of the perpendicular bisector ofab?