Iwill awardan expressian for each!

1) all numbers such that x≤5.

2) all numbers such that x≤−14.

Which of the following is true for the relation f(x)=2x^2+1

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

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?