The expression a2 – 25 is equivalent to which of the following expressions? A. (x - 5)2
B. (x + 5)
c.
(2 – 5) (2 + 5)
D.
(2x – 5)(2x + 5)

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .