Which of the following are identities? Check all that apply.

A) sin3x/sinx cosx = 4cosx - secx

B) sin6x = 2sin3x cos3x

C) sin3x-sinx/cosx+cosx = tanx

D) (sinx+cosx) ^2=1+sin2x

Q (n - 1) + Q (n - 2) + Q (n - 3)

The sum of three consecutive even integers is 66. Which equation represents the scenario? x = 66 x + (x + 1) + (x + 2) = 66 x + x + x = 66 x + (x + 2) + (x + 4) = 66

5y (3-y) (4y+1) ^2=0 using the zero product property

On a baseball diamond, 1st base, 2nd base, 3rd base, and home plate form a square. If the ball is thrown from 1st base to 2nd base and then from 2nd base to home plate, how many feet has the ball been thrown?

Round 7526.442 nearest hundredth

Try this trick out on a friend. Tell your friend to place a dime in one hand and a penny in the other hand. Explain that you can determine which hand is holding the penny. Here's how to do it: a.

What is the probability that a randomly selected child from this group will have red hair, given that he has straight hair? (Enter your answer as a fraction.)

in a survey of 3419 adults aged 57 through 85 years, it was found that 83.9% of them used at least one prescribed medication

24% of 289 equals estimate using a rate per 100

Parse the regular hexagon, and tell how much regular unit triangle do you find, if the length of one side of the regular hexagon is n unit (s) :