For any integer k greater than or equal to 1 , there is a polynomial Pk+1(x) of degree k+1 such that for each integer n greater than or equal to 1 sigma(k^k)=Pk+1(n)

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2