Which of the following statements are true of the graph of the function f(x)= (x+5)(x-3). select all that apply.
a) the graph has a relative maximum
b) the graph has a relative minimum
c)the graph has an x-intercept at (5,0)
d)the graph has an x-intercept at (3,0)
e) the graph has a y-intercept at (0,-15)
f) the axis of symmetry is x=-2

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

What is the length and width of a 84.5 square foot rug? will mark

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?