11 the equation y= −0.0088x2+ 0.79x + 15 models the speed x (in miles per hour) and average gas mileage y (in miles per gallon) for a vehicle. what is the best approximate for the average gas mileage at a speed of 60 miles per hour? a) 15.7 mi/galb) 30.7 mi/galc) 61.9 mi/gald) 62.9 mi/gal

What is the solution of sqrt x+2-15=-3

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size.it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?