Rewrite with only sin x and cos x. sin 3x - cos x (6 points)

Select one:
a. 2 sin x - sin3x - cos x
b. 2 sin x cos2x + sin x - 2 sin3x - cos x
c. 2 sin3x cos4x + 1
d. 3 sin x cos x - sin3x - cos x

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

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.