The SAT is standardized to be normally distributed with a mean µ = 500 and a standard deviation σ = 100. What percentage of SAT scores falls:. a. Between 500 and 600? the answer says 34.13% <<< how do you get to that???
b. Between 400 and 600?

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck

How can you construct perpendicular lines and prove theorems about perpendicular lines

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length