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X and Y are random variables with joint PDF of x + y ≤ 1 for x ≥ 0 and y ≥ 0, and 0 otherwise. What is the marginal pdf fx(x) and fy(y)? Moles of carbon in 0.244 g of calcium carbide? PRE-CALC Help please Let f(x) = 5 + (2x+8)^3. Find f^−1(x) (inverse) = and find (f(x))^−1 (reciprocal) = Thank you? Ive been abducted by the FBI & forced to take medicine as a test patient! Who can i trust to tell this too?? Why cant we see stars from outer space in videos?