1. the value(s) of x when sin(x) = -1 are x = -90° and 270°? true false 2. the y-value for y = cos(x) when x = -90° is 0. true false 3. what is the y-value for y = tan(x) when x = -45°? 1/2 1 -1 4. one of the x-value(s) for tan(x) = 0 is 90°. true false

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?