In radian measure, the angles of a 45-45-90 triangle are: a. pi/4, pi/4, pi/2 b. pi/3, pi/3, pi/2 c. pi/8, pi/8, pi/2 d. pi/6, pi/6, pi/2

Part a: select all of the ordered pairs that are located on the graph of the equation. part b: does the graph of the equation represent a function? select all correct answers for part a and one answer for part b.

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Measures of the angle of r, 31 s (x+4) t (3x+9)