Which of the following statements is true?
a. sin 18° = cos 72°
b. sin 55° = cos 55°
c. sin 72° = cos 189
d. Both a and c.

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.

Is the square root of 4 plus the square root of 16 rational?

Standard deviation of 19,29,21,22,23