The formula to calculate the mass, M(t), remaining from an original sample of radioactive material with mass Mo, is determined using the formula
M(t) = M.
where t is time and h is the half life of the substance. The half-life of a radioactive substance
is 8 hours. How many hours will it take for a 300 g sample to decay to 75 g?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Carmen begins her next painting on a rectangular canvas that is 82.7 cm long and has a area of 8,137.68 cm2. will the painting fit in a frame with an opening that is 82.7 cm long and 95 cm wide? explain

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.