Let Z be a standard normal variable. Find P(-0.86 < Z < 2.25). a) 0.1980
b) 0.7929
c) 0.7898
d) 0.7884
e) 0.7742
f) None of the above.

Write an equation of the line given the two points below (write your equation in slope-intercept form, y=mx+b): (-4, 4) and (6, -4)

What is the measure of ac? 5 units 13 units 26 units 39 units

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above