In the diagram, the measure of angle 1 is 116°, the measure of angle 2 is (8x)°, and the measure of angle 6 is (x+12)°

What is the measure of angle 8, to the nearest degree?

14°
20°
52°
64°

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.

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Find the arc length of the semicircle. 7the grade