2019新SAT数学练习题及答案解析7

>>SAT考试模拟题：2019新SAT数学练习题及答案解析7

>>SAT考试经典课程推荐

P=Pa+ρgh

The absolute pressure P in a fluid of density ρ at a given depth h can be found with the above equation, where Pa is atmospheric pressure and g is gravitational acceleration.

Which of the following correctly expresses the depth in terms of the absolute pressure, atmospheric pressure, fluid density, and gravitational acceleration?

以下哪个是深度的正确表达式，关于绝对压力，大气压，流体密度和重力加速度的

A.h=(P-Pa)/ρg

B.h=(P+Pa)/ρg

C.h=P/ρg-Pa

D.h=P/ρg+Pa

答案：A

解析：

Choice A is correct.

Writing & Language

12s≤4(s-2)

Which of the following represents the solutions to the inequality shown above?

以下哪个选项表示以上不等式的解?

A.s≤-1 B.s≤-2/3 C.s≤-1/4 D.s≥8

答案：A

解析： Choice A is correct.

4月28日SAT语法每日一练题2

Q(x)=P(2x)/2

In the equation shown above, Q and P are functions. If (x0,y0) is a point on the graph of y=Q(x), which of the following is a point on the graph of y=P(x)?

A.(x0,y0) B.(2x0,y0/2) C.(x0/2,2y0) D.(2x0,2y0)

答案：D

解析：Choice D is correct.

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