A fast-food restaurant operates both a drive- through facility and a walk-in facility. On a randomly selected day, let X and Y , respectively, be the propor- tions of the time that the drive-through and walk-in facilities are in use, and suppose that the joint density function of these random variables is f(x, y)= 32 (x+2y), for 0≤x≤10≤x≤1, 0≤y≤1,0≤y≤1,$$ f(x, y)=0, elsewhere. (a) Find the marginal density of X.
(b) Find the marginal density of } Y.
(c) Find the probability that the drive-through facility is busy less than one-half of the time.

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Agram of fat oxidized by cellular respiration produces approximately as much atp as a gram of carbohydrate.

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.