True or false, and explain briefly: a. if the correlation coefficient is positive, then above-average values of one variable are associated with above-average values of the other. b. if y is usually less than x, then the correla

In which form is the following function written? y = - 2(x – 3)(x + 5)

Which graph of a hyperbola represents the equation 16x^2-y^2=16

Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?