新SAT官方Daily Practise每日一题数学计算题

小站教育2017-05-22 14:55:53

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摘要:今天起,本系列将给大家带来SAT官方的每日一练真题,各个项目都有,持续更新,希望大家同步多练习。今天这里分享的是5月17日的数学计算题,一起来练习吧!

答案:A

解析

Choice A is correct.

The formula to calculate the volume of a cylinder is Vcylinder=πr^2h where r is the radius and h is the height of the cylinder. The formula tocalculate the volume of a sphere is Vsphere=4/3πr^3 where r is the radius of the sphere.

The volume of the clay in the cylinder is π(10^2)(30) and the volume of each sphere is4/3π6^3. Thus, the number of spheres with a radius of 6 centimeters that the artist will beable to sculpt is the largest integer less than the fraction begin display style fractionπ(10^2)(30)/4/3π6^3, which is 10.

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