The half-life of plutonium-234 is 9 hours. If 50 milligrams is present now, how much will be present in 2 days?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Which expression and diagram represent “renee biked four times as far this month as last month”?