The range of the graphed function is

a) [-2, 5]
b) {-2, 2, 5}
c) {1, 3, 4, 6}
d) {(1, 5), (3, 5), (4, 2), (6, -2)}

explain how you got the answer!

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?