While browsing for the best deal, Fred finds a brand-new lawn mower on sale for 35% off the total price of $339 with an 8% sales tax. His neighbor had offered to sell him a similar lawn mower that he had just bought a month ago because he was moving and no longer needed it for $250.

a. We will use our composite functions, h(x) = (f + g)(x) to find the final price of the brand-new lawn mower. Use the equations f(x) = 0.65x, for the 35% off, and g(x) = .08(.65x), for the sales tax on the sales price of the lawn mower. What is the final price? Show your steps.

b. Which lawn mower should Fred buy? Circle one

The Lawn Mower on Sale or The Neighbor’s Lawn Mower

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

three-fourths of an hour

36÷48=0.75

0.75=

i am unable to solve this problem

step-by-step explanation:

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation: