展开全部

题目列表

题目内容
If $$1 < r < s < t < 2$$, then, of the following, which is closest to $$r+(s*10^{6})+(t*10^{12})$$?
If $$\frac{1}{2}$$ is one solution of the equation $$8x^{2}+2x-k=0$$, where k is a constant, what is the other solution of the equation?
xy > 0 and xz < 0

Quantity A

$$x^{2}$$

Quantity B

yz






$$72=2^{x}(3^{y})$$

x and y are positive integers.

Quantity A

x

Quantity B

y


In the rectangular coordinate system, the "D-length" between points ($$x_{1}, y_{1}$$) and ($$x_{2}, y_{2}$$) is defined as the greater of the two quantities |$$x_{1}-x_{2}$$| and |$$y_{1}-y_{2}$$|. Points R, S, and T have coordinates (-3, 1), (3, 5), and (4, 1), respectively.

Quantity A

The D-length between points R and S

Quantity B

The D-length between points R and T


x and y are positive integers and x > y.

Quantity A

$$x^{y}$$

Quantity B

$$y^{x}$$






List K consists of five different numbers in ascending order. The least number in list K is -0.7 and the greatest number is -0.3. List L consists of six different numbers in ascending order. The least number in list L is -4.1 and the greatest number is -0.5.

Quantity A

The third number in list K

Quantity B

The fourth number in list L






At a grocery store, Joe bought n bottles of a certain shampoo for a total price of $12.00. At a drugstore, Ann bought 2n bottles of the same shampoo for a total price of $16.00.

Quantity A

The amount by which the price per bottle of the n bottles Joe bought exceeds the price per bottle of the 2n bottles Ann bought

Quantity B

$$\frac{5}{n}$$ dollars






If both the sum and the product of the four positive integers a, b, c and d are even, what is the greatest number of these integers that could be odd?
In Christchurch, the ratio of the number of inches of rainfall during May to the number of inches of rainfall during February was closest to which of the following?
Given 14 consecutive integers, if the sum of the first 7 integers is S, what is the sum of the other 7 integers, in terms of S?


The frequency distribution above shows the number of colleges visited by a sample of students. If the median of the numbers of colleges visited is 3, which of the following could be the value of x?

Indicate all such values.
The function R is defined by R(x)=$$x+\frac{1}{x}$$ for all positive numbers x.

Quantity A

R(3)+R($$\frac{1}{3}$$)

Quantity B

2R(3)






Of all the children living in Country M in 1989, 24 percent had access to a computer at home and 18 percent used a computer at home. What percent of children who had access to a computer at home did not use a computer at home?
A certain company made neither a profit nor a loss on the first 1,000 widgets it sold and made a profit of $0.50 on each widget it sold after the first 1,000. If the company's total profit from the sale of widgets was p dollars, what is the number of widgets it sold, in terms of p?
The average (arithmetic mean) of the weights of a father and mother is twice the average of the weights of their 4 children. If the average weight of the 6 family members is 128 pounds, what is the average weight, in pounds, of the 4 children?


If the area of trapezoid ABCD above is 90, what is the length of side CD?


In the rectangular coordinate plane, how many points (x, y), where both x and y are integers, lie on the circle with center at (0, 0) and radius 5?
For how many of the 10 selected years was the number of United States residents in the age-group "65 years and older" greater than 14 million?
Of the 10 selected years, which had the greatest total number of United States residents in the combined age groups of "5 years and younger" and "65 years and older"?

共收录:

25000 +道题目

196本备考书籍

最新提问