What are the zeros of f(x) = x2 + 3x – 10? a. x = –5 and x = 2 b. x = 5 and x = 2 c. x = –5 and x = –2 d. x = 5 and x = –2

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed