Kajal holds a ruler in some wavy water. The depth of the water t seconds after she measuring it, in cm, is given by D(t)=50-23sin(π(t+0.23))
After she starts measuring, when is the first time the depth of the waves is at its average value? Give an exact answer.
When t= ___ seconds.

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.

If cos(θ)=2853 with θin q iv, what is sin(θ)?

An oil exploration company currently has two active projects, one in asia and the other in europe. let a be the event that the asian project is successful and b be the event that the european project is successful. suppose that a and b are independent events with p(a) = 0.2 and p(b) = 0.8. (a) if the asian project is not successful, what is the probability that the european project is also not successful? (b) what is the probability that at least one of the two projects will be successful? (c) given that at least one of the two projects is successful, what is the probability that only the asian project is successful? (round your answer to three decimal places.)