Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
The stopping distance of a car is the number of feet that the car travels after the driver starts applying the brakes. The stopping distance of a certain car is directly proportional to the square of the speed of the car, in miles per hour, at the time the brakes are first applied. If the car’s stopping distance for an initial speed of 20 miles per hour is 17 feet, what is its stopping distance for an initial speed of 40 miles per hour?
(A) 34 feet
(B) 51 feet
(C) 60 feet
(D) 68 feet
(E) 85 feet
正确答案>>>
本站部份资料来自网络或由网友提供，如有问题请速与我们联系，我们将立即处理！
版权所有©四级英语单词 网站地图 陇ICP备2023000160号-4
免责声明：本站非营利性站点，以方便网友为主，仅供学习。