#### 题目列表

ABCE is a square, and BCDE is a parallelogram.

Quantity A: The area of square ABCE
Quantity B: The area of parallelogram BCDE x ≠ 0

Quantity A: $x^{2}$
Quantity B: x(x+5)
x=2, y=3,z=5

#### Quantity A

$x^{-1}yz^{-2}$

#### Quantity B

$(\frac{xz}{y})^{-2}$

x < y-2

#### Quantity A

The average (arithmetic mean) of x and y

#### Quantity B

y-1

If (a,b) is a point in the xy-plane, then the distance between (a,b) and the x-axis is |b| and the distance between (a,b) and the y-axis is |a|.

#### Quantity A

The total number of points P in the xy-plane such that the distance between P and one of the axes is 10 and the distance between P and the other axis is 8

#### Quantity B

The total number of points Q in the xy-plane such that the distance between Q and one of the axes is 5 and the distance between Q and the other axis is 4

For a sample of 210 households, one-third of the households do not have any pets, one-third of the households each have 1 pet, and the rest of the households each have 2 pets. Which of the following statistics for the sample are equal to 1? Indicate all such statistics.
According to a tax rate formula for a certain year, the amount of tax owed by an individual whose annual income was between $31,850 and$77,100 was equal to a base tax of $4,386 plus 24 percent of the annual income that exceeded$31,850. According to this formula, what was the amount of tax owed by an individual whose annual income that year was \$42,000?
Last Monday a certain store sold 17 wrenches at x dollars each. Last Tuesday the store reduced its prices and sold an additional 8 wrenches at 0.5x dollars each. Which of the following is equal to the average (arithmetic mean) price, in dollars, of the 25 wrenches that the store sold last Monday and Tuesday?
In a distribution of 8,500 different measurements of the variable x, 26.5 is the 56th percentile and 37.1 is the 78th percentile. Which of the following is closest to the number of measurements of x that are in the distribution such that 26.5 ≤ x ≤ 37.1 ?

The figure shows a smaller square with sides of length y inscribed in a larger square with sides of length x. Which of the following relationships between x, y, and z must be true ? The functions f and g are defined by f (x) = |2x +1| and g(x)=3 for all numbers x. What is the least value of c for which f (c) = g (c)?
The area of a circular region is 5π

#### Quantity A

The diameter of the circular region

#### Quantity B

$\sqrt{20}$

The reciprocal of x - 2 is x +2.

x

3

x > 0

#### Quantity A

The area of a square region with diagonal of length $\sqrt{2}x$

#### Quantity B

The area of a circular region with diameter of length x

ABC is an equilateral triangle.

The length of AB

#### Quantity B

$2\sqrt{3}$ $\frac{1}{2}$ < r < 1

2r

#### Quantity B

$\frac{1}{r}$

In a data set of 10,000 numbers varying from 20 to 80, the number 62 is the 60th percentile and the number 74 is the nth percentile..

Quantity A: n
Quantity B: 70
A historian asserts that at the beginning of 1852, the population of a certain mining town was 16,000. The historian also asserts that for each of the years from 1849 through 1853, the towns population at the beginning of the year was twice that of the preceding year. According to the historian, what was the range of the towns populations at the beginning of each year from 1848 through 1853?
Line l in the xy-plane contains points A and B with coordinates (-4,5) and (6,-1), respectively. Line k is perpendicular to l and contains the midpoint of line segment AB. Which of the following statements are true?

Indicate all such statements.
If x < y, which of the following must be true?

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