In ΔOPQ, the measure of ∠Q=90°, PQ = 3.6 feet, and OP = 4.3 feet. Find the measure of ∠O to the nearest tenth of a degree. O P Q 3.6 4.3

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Solve the inequality and graph 6j - 7 < 5

Will give brainliestbased on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m?