Assume that r varies directly as p. What is the constant of proportionality if r = 3 when p = 15. k = 1/5
k = 5
k = 3
k = 45

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

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Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2