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finite math

x is a binomial random variable with n=400 and p=.52. Find the expected value of x (the mean)

need help with finite math

a Jar contains 2 nickles and 4 quarters. You reach in and randomly choose 2 coins. Let x represent the value of 2 coins in cents. Find the value of x. I need to figure out how to make a table as well...

word problem please help.

Linda and Dave leave simultanously from the same starting point biking in opposite directions. Linda bikes at 6.2 miles per hour and Dave bikes at 10.6 miles per hour. How long will it be until they...

Which of the following?

The length of a curve from x=0 to x=1 is given by ∫ sqrt(1+16x^6) dx from 0 to 1. If the curve contains the point (1, 4), which of the following could be an equation for this curve?    a)...

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