Pythagorean identities: sin?(8)+ cos2(0) = 1
Which statement(s) are true based on the
Pythagorean identities?
sin? 8 = 1+cos e
tan?(0)+1= sec?(0)
1 = sec28-tan?
1 + cot? (0) = csc?(0)
cot?e=csc26-1
1-tan? 6 --sec?
-cos= sin? 8-1
DONE

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.