Problem #6: Let X be a Poisson random variable with parameter 4, and I a geometric random variable with parameter Suppose that X and Y are independent, and W = X+Y. Find P{W = 3}. Round your answer to 4 decimals.

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The sum of the squares of two numbers is 400 and the difference is 4.Use DNE if the answer Does Not Exist. Find the numbers. The larger number is .The smaller number is .

I’m having trouble breaking this down. Every-time I finish the problem I don’t get a solid answer just decimals.

You are designing a box for a cell phone. It must have a length that is three times the width and be 2 inches tall. Find the width that would produce a surface area of 160 square inches.