Find the value of E, the margin of error, for c = 0.99, n= 15 and s=5.7. 4.39
2.67
4.49
1.13
3.86

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12