Fuel efficiency for a certain vehicle is given by F(v) = -0.018v2 + 1.48v + 1.8 where F(v) is the
fuel efficiency in miles per gallon (mpg) for a vehicle traveling v miles per hour (mph).
a. What speed (v) will yield the maximum fuel efficiency? (Round to the nearest mile per hour)

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

24+x=y

step-by-step explanation: