Verify sin4 x - sin2x = cos4x - cos2x is an identity

a cyclist rides her bike at a speed of 9 kilometers what is the speed in meters per second? how many meters will the cyclist travel in 5 seconds?

What is the value of sin 15

Given: m∠1 = 62° Line l is parallel to line m Prove: m∠7 = 118°

Maria receives a commission of 11.5% for each pair of shoes she sells she earned $207 in commission last week what was the dollar amount of shoes she sells

Should a quadrilateral have at least one pair of parallel sides?

Of the 420 respondents in a Christmas tree market survey, 42% had no children at home and 58% had at least one child at home. The corresponding figures for the most recent census are 48% with no children and 52% with at least one child. 1.

1. Your new four wheeler cost you a total of 5,286.44. If the sales tax equaled 287.44 what was the rate of the sales tax? 2. You buy a used truck for 12,450.00. Assuming a 4 percent sales tax, what is the amount of sales tax?

Which is greater 67 1/2 or 65

Jo cut a key lime pie into 8 equal size slices the next day 7/8 of the pie is left jo puts each slice on its own plate how many plates does she need

Two out of six computers in a lab have problems with hard drives. If three computers are selected at random for inspection, what is the probability that none of them has hard drive problems