#### 题目列表

Which of the following equals its reciprocal?

Indicate all possible choices.
If ((3x+2)/4)>(8/12), then which numbers are possible values of x?

Choose all that apply.
Circle Ohas a radius of 3, and is intersected by a line at points R and S.

What is the maximum possible distance between R and S?
x<0

#### Quantity A

$4x^{2}+1$

#### Quantity B

$(2x+1)^{2}$

2a+b=4

9b=18

a

#### Quantity B

b

14,000 of the 25,000 type S cars contain anti-theft devices.

#### Quantity A

The percent of type S cars that do not contain anti-theft devices.

#### Quantity B

45%

The equation of the line graphed on the rectangular coordinate system above is $y=-(\frac{9}{10})x+b$

AB

#### Quantity B

BC

a is a positive integer.

#### Quantity A

$\frac{(3a)(3a)}{3}$

#### Quantity B

$\frac{3a+3a}{3}$

A square has an area of $x^{4}$ square centimeters.

#### Quantity A

A length of a side of the square

#### Quantity B

$x^{2}-1$

At a certain language school, 55 students are taking German only. 75 students are taking Spanish only, and 15 students are taking both languages. No other languages are offered.

#### Quantity A

The ratio of the number students enrolled in German classes to the number of students enrolled in Spanish classes

#### Quantity B

$\frac{3}{4}$

3x>1;y>1

#### Quantity A

$(\frac{y}{x})\sqrt{\frac{x^{3}}{y}}$

#### Quantity B

$\sqrt{xy}$

In Country Z, the ratio of residents under 25 years of age to residents 25 years or older is 3 to 2. If there are 36 million people under 25 years of age residing in Country Z, how many people reside in Country Z, in millions?
If x is the sum of n odd integers, which of the following must be true?

In the rectangular solid above, PQ = 5,QR= 12, and the volume is 480.

What is the total surface area?

_____
If x is divided by 7,the remainder is 1. Ify is divided by 7, the remainder is 2.

What is the remainder if x + y is divided by 7?

_____

In the figure above, what is the value of y?
The root of x + 4 = 0 is also a root of which of the following equations?
The base of an isosceles triangle has coordinates (5, 2) and (1, 2). Which coordinate could be the third vertex of the triangle?

Indicate all possible choices.
In a class of 30 students, the ratio of males to females is 3 to 2. What is the number of females in the class?

_____
A square has side x where x > 4

#### Quantity A

The area of the square

#### Quantity B

The perimeter of the square

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