Cos2a = 2cos^2a-1 for all values of a

true or false?

Jake, Sara, and Cole are selling tickets for the school drama show. Sara sells half as many tickets as Jake. Cole sells 6 more than twice as much as Jake. They sold a total of 538 tickets together. a) Write an equation to represent the situation.

A cooking show currently has about 223,00 regular viewers. The number of regular viewers has been decreasing at a rate of 4.7% per year.

The numbers of birds Jim spots on different days during a bird watching trip are: 12, 6, 7, 11, 11, 9, 13, 16, 10. What is the first quartile of this data set? O 14.5 0 11 08 06.5 Done

An ostrich can run at a rate of 50 miles in 60 minutes. At the rate, how Long would it take an ostrich to run 5 miles

Choose the best answer for this length. the length of a paintbrush 9 inches 9 yards 9 feet

190 miles every 4days ratio table for how many miles for six days

What's bigger 13% or 3 over 25

Mariah has the spool of ribbon shown at the right and 1 yard of fabric for a craft project. She wants to cut the ribbon into 6 equal pieces. How long is each piece of ribbon?

What is 5 eights of 48

1) Two angles of a triangle measure x + 9 and 2x - 7. What is the measure of the third angle as a simplified expression in terms of x?