What is x^2 + 16
A) (x + 4)(x + 4)
B) (x - 4)(x - 4)
C) (x + 4)(x - 4)
D) cannot be factored

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)