The center of the unit circle contains which of the following (x, y) coordinates? 1) (1, 0)
2) (0, -1)
3) (0, 0)
4) (0, 1)

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Ineed me i stuck and i don’t want to get it wrong