6. If there are 60 studensts in a class, 20 students are absent. Then, find the percentage of absent students.​

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

Simplify. 3(4+4x) (type your answer in with no spaces)