Which of the following is not an identity?

A. cos^2 x cscx-cscx = - sinx

B. csc^2x + sec^2x = 1

C. sinx (cotx + tanx) = secx

D. cos^2x - sin^2x = 1 - 2sin^2x

7 grade boys26, girls34 6 gradeboys30, girls22 write each ratio as a friction in simplest form. 1) 7th grade boys to 6 grade girls

Two numbers have a sum of 23. One number is 5 more than the other. Find the the numbers

Leah has The flowers shown she wants to put them in 4 vases with the same number in each case how many flowers does she need to put in each case

Sean goes on a road trip in his car from Tampa to Gainesville. The distance between these two cities is 162.5 miles. It takes him 2 1/2 hours to drive to Gainesville. What is the average speed Sean is traveling?

Write the ratio 1.6 : 4 as a fraction in simplest form, with whole numbers in the numerator and denominator.

10. What is the mean of the data? 186, 181, 176, 149, 184, 190, 158, 139, 175, 111

Raquel has 18 eggs. she uses half of them in a omelet for some cookies. then she uses half of what's left afther she makes cookies for a casserole for dinner. how many eggs are left at the end of the day

Angle's father rides a motorcycle every weekend. He rides to relax. He travels 78 miles in two days every weekend. if he travels the same amount of miles on both days, how many miles does he travel in one day?

201 is 67% of what amount?

Jameel is 8 inches taller than his sister. His sister is 41 inches tall. Write an equation that can be used to find his height