六道SAT數(shù)學(xué)練習(xí)題目及答案.

　　下面為大家整理的是六道SAT數(shù)學(xué)練習(xí)題目及答案分析的內(nèi)容。SAT數(shù)學(xué)題目的知識(shí)點(diǎn)是大家已經(jīng)學(xué)習(xí)過的，但是如何應(yīng)用到SAT數(shù)學(xué)特別的用法中則需要大家更多的練習(xí)才能掌握。下面我們就一起來看看這六道SAT數(shù)學(xué)題的詳細(xì)內(nèi)容吧。

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　　1.There arestudents in a biology class, and onlyof them are seniors. Ifjuniors are added to the class, how many students in the class will not be seniors?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　2.If square root (x minus a) = square root (x + b), which of the following must be true?

　　Answer Choices

　　(A) a = 0

　　(B) b = 0

　　(C) a + b = 0

　　(D) a minus b = 0

　　(E) (a^2) + (b^2) = 0

　　3.If the function is dined by , and if , what is the value of ?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

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

　　The circle above has center P. Given segments of the following lengths, which is the length of the longest one that can be placed entirely inside this circle?

　　(A) 6.99

　　(B) 7.00

　　(C) 7.99

　　(D) 8.10

　　(E) 14.00

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

　　In the figure above,is the center of the circle andis equilateral. If the sides ofare of length, what is the length of?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　6.If the function f is dined by function f of x= (2 times x) + 3, and if function f of a = 11, what is the value of a?

　　(A) 4

　　(B) 7

　　(C) 11

　　(D) 17

　　(E) 25

　　Explanation

　　1.The correct answer is D

　　At first, there arestudents in the class, andof them are seniors. It follows that initiallystudents are not seniors. Ifjuniors are added to the class, there will be, or, students in the class who are not seniors.

　　2.The correct answer is B

　　Squaring both sides of the equation square root (x minus a) = square root (x + b) gives the equation x minus a = x + b. Subtracting x from both sides now gives negative a = b, or a + b = 0

　　3.The correct answer is A

　　If the functionis dined by, and, then. Therore,.

　　4.The correct answer is C

　　Since the radius of the circle is 4, the diameter of the circle is 8. In a circle, the diameter is longer than any segment that can be placed entirely inside the circle. Therore, segments of length 8.10 or length 14.00 could not be placed entirely within the circle, and the correct answer is 7.99.

　　5.The correct answer is C

　　Choice (C) is correct. Sinceis equilateral, each of its angles has measure. It follows thathas measure. Sinceandare radii of the same circle, they are of equal length, and sois isosceles. Henceandeach have measure. Thushas measure, and sois aright triangle. Since, the side opposite theangle in, is of length, it follows that, the side opposite theangle, is of length.

　　6.The correct answer is A

　　If the function f is dined by function f of x= (2 times x) + 3, and function f of a = 11, then function f of a = (2 times a) + 3 = 11. Therore, a = (11 minus 3) over 2 = 4.

　　以上就是關(guān)于SAT數(shù)學(xué)練習(xí)題目及答案分析的全部內(nèi)容，答案的分析非常詳細(xì)。大家可以在備考自己的SAT數(shù)學(xué)考試的時(shí)候，進(jìn)行適當(dāng)?shù)木毩?xí)和應(yīng)用。