The listed weight of a steel beam is 88 pounds. An engineer weighs the beam in his shop and records a weight of 86.5 pounds. The absolute error for the listed weight of the beam is , and the percent (relative) error is

Is the power produced directly proportional to the wind speed, give reasons for your answer?

The angle of elevation from point a to the top of a cliff is 38 degrees . if point a is 80 feet from the base of the cliff , how high is the cliff ?

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30