新SAT每日一题数学代数题

>>SAT习题解析：新SAT每日一题数学代数题

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Read the following SAT test question and then click on a button to select your answer.

P=Pa+ρgh

The absolute pressure P in a fluid of density ρ at agiven depth h can be found with the above equation, where Pa is atmospheric pressure andg is gravitational acceleration. Which of the following correctly expresses the depth in terms of the absolute pressure, atmospheric pressure, fluid density, and gravitational acceleration?

A.h=P-Pa/ρg

B.h=P+Pa/ρg

C.h=P/ρg-Pa

D.h=P/ρg+Pa

重点单词:

gravitational ['grævə'teiʃənəl] adj. 重力的，引力作用的

atmospheric [.ætməs'ferik] adj. 大气的，大气层的，制造气氛的

acceleration [æk.selə'reiʃən] n. 加速，促进，加速度

pressure ['preʃə] n. 压力，压强，压迫v. 施压

equation [i'kweiʃən] n. 相等，方程(式), 等式，均衡

multiple ['mʌltipl] adj. 许多，多种多样的n. 倍数，并联

density ['densiti] n. 密集，密度，透明度

答案：A

解析：

Choice A is correct.

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