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题目内容
(a, 6) is a point (not shown) in Region I.

(–6, b) is a point (not shown) in Region II.

Quantity A

a

Quantity B

b


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A piece of twine of length t is cut into two pieces. The length of the longer piece is 2 yards greater than 3 times the length of the shorter piece. Which of the following is the length, in yards, of the longer piece?
A circle with center D is drawn inside in a circle with center C, as shown. If CD = 3, what is the area of semicircle EAB ? GRE、gre题库、gre模考、gre考满分
For the final exam in a scuba diving certification course, Karl has to navigate underwater from one point in a lake to another. Karl began the test at the boat and swam due south for 7 meters. He then turned due east and swam for x meters. When he surfaced, he was 25 meters from the boat. What is the value of x ?

_____meters

Quantity A

The circumference of a circular region with radius r

Quantity B

The perimeter of a square with side r


Triangle ABC is contained within a circle with center C. Points A and B lie on the circle. If the area of circle C is 25π, and the measure of angle C is 60°, which of the following are possible lengths for the legs of triangle ABC ?

Indicateallpossible values.

Quantity A

x

Quantity B

5.9


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Quantity A

f

Quantity B

g


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Given points A(2, 3) and B(x, y) in the rectangular coordinate system above, if y = 4.2, then x = GRE、gre题库、gre模考、gre考满分
In rectangle ABCD above, which of the following is the area of the triangle ABD ? GRE、gre题库、gre模考、gre考满分
The circle above has a center O. ∠AOB=∠BOC

Quantity A

The area of triangle AOB

Quantity B

The area of the shaded region


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The circumference of the circle with center O is 15π. LMNO is a parallelogram and c = 108. What is the value of d ? GRE、gre题库、gre模考、gre考满分
15 marbles are placed in a bowl; some are red, and some are blue. If the number of red marbles is 1 more than the number of blue marbles, what is the probability that a marble taken from the bowl is blue?
If △(x) = 10x – 1, what is △(5) – △(3) ?

Quantity A

The largest odd factor of 78

Quantity B

The largest prime factor of 78


At a recent dog show, there were 5 finalists. One of the finalists was awarded "Best in Show" and another finalist was awarded "Honorable Mention." In how many ways could the two awards be given out?

_____
Company X spends $40,000 per year on advertising for product A and $30,000 per year on advertising for product B. The company spends $15,000 on advertisements that advertise both product A and B as a system. The company spends $90,000 total on advertising for all of its products.

Quantity A

The total amount the company spends advertising products other than products A and B.

Quantity B

$20,000


Lee randomly selects a 2-digit prime number less than 50. What is the probability that the tens digit is greater than the units digit?
An elected official wants to take five members of his staff to an undisclosed secure location. What is the minimum number of staff members the elected official must have in order to have at least 20 different groups from which to choose?
For all real numbers x and y, if x # y = x(x – y), then x # (x # y) =

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