5-7 Completing the Square The product of a particular number and a second value, which is given by the sum of 8 and the original number, is 65. What is the number?
A. X = 81
a
B. X = -13; x = 5
O
C. x = -9; X = 9
O D. x = 5

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Find the missing dimension extra points

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?