By using sum or difference formulas, cos (π-x) can be written as

I need to find what the variable is in this equation - 7+m=-9

Give the first eight terms of the sequence defined recursively by t1 = 3, t2 = 5, and tn = tnn-1 - tn-2

For the equation 3 (7 + x) = 3x + k, which value of k will create an equation with no solutions A. x B. 3x C. 15 D. 21

Malia is making a bead necklace. It will have 24 beads when she finishes. This is the beginning of her necklace.

Citizens under the age of 18 are not allowed to vote." Part A: Write an inequality to show the age of citizens who are allowed to vote. Part B: Describe in words how you can show the solution to this inequality on a number line.

Given sin (theta) = -1, find sec (theta) a. - 1 b. 0 c. 1 d. undefined Given cos (theta) = 1, find (theta) a. 90° b. 270° c. 0° d. 180°

Gavyn drives at a speed of 50 miles per hour. How long will it take to drive 225 miles?

Whats the answer to 8x+x=18

Evaluate the factorial expression. 200!/199!

The graph shows the dilation of ΔABC with the origin as its center. Which rule describes this transformation? A) (x, y) → (2x, 2y) B) (x, y) → (0.5x, 0.5y) C) (x, y) → (x + 2, y + 2) D) (x, y) → (x - 2, y - 2)