Use a calculator to find the value of sin 21° round to four decimal places. a. 0.3839 b. 0.3584 c. 0.9336 d. 2.7904

Simplify 6sin θsec θ. choices a) 6 tan θ b) 6 cos θ c) 6 cot θ d) 6

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm.dist(80,475,33,1) =norm.inv(0.80,475,33) =norm.s.inv((80-475)/33)?

Can someone me with this problem i don't understand i need