Calculate the linear correlation coefficient r using the table of values.

r= 0.439
r = 0.818
r=0.955
r=0.723

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Factor the expression using the gcf. the expression 21m−49n factored using the gcf