One week a computer store sold a total of 36 computers and external hard drives. The revenue from these sales was 25600​$. If computers sold for​ $1180 per unit and hard drives for​ $125 per​ unit, how many of each did the store​ sell?

If value of cos330° is √3/2 then find tan165°.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?