12. Given the following conditional: “If two angles are complementary, then the two angles add up to 90°.” a) Write the converse of this conditional. b) Rewrite the information as a biconditional.

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?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Select all the expressions that will include a remainder.