Arandom sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph. from past information, it is known that the standard deviation of the population is 22 mph. if we are interested in determining an interval estimate for μ at 96.6% confidence, the z value to use is

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in