What number must you add to complete the square? x^2 + 4x = 13
a. 16
b. 8
c. 2
d. 4
.

Write each expression in exponential form and find its value.| ! 2 x 2 x 2 x 2

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.