1 + cos^2a = 2(cos^4a+sin^4a)

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

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x