3 parts: Given triangle NOP is congruent to triangle QRS and O is the right angle. If the cosN=24/25 And the tanN=7/24, find the following:

a) sin N=
b) cos S=
c) tan Q=

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)?

This is so hard and it’s for a test

Which of the following polynomials is the expansion of (* x - y)4?