展开全部

题目列表

题目内容


The average (arithmetic mean) value of x in the frequency distribution above is 0. If a value of x is to be selected at random from the distribution, which of the following events is most likely?
It costs d dollars to buy n nails. At this rate, what is the cost of n+1,850 nails, in dollars?
-1 < x < 0 < y < z < 1

Quantity A

The median of x, y and z

Quantity B

The median of $$x^{2}$$, $$y^{2}$$, and $$z^{2}$$




The primary purpose of the passage is to
Newcomb did more than merely extol the use of objective analysis to address social problems. Through a steady stream of books, articles, and speeches, he sought to provide a (i)____________ examination of and prescription for political and economic ills, thus practically demonstrating-rather than simply (ii)____________—the (iii)____________ of such impartial study.
M, a, and b are positive numbers.

Quantity A

$$\frac{M(a^{2}+b^{2})}{12}$$

Quantity B

$$\frac{M(a+b)^{2}}{12}$$


A restaurant has a total of 18 tables. Each of the tables is occupied by either 1 or 2 people. The number of people occupying the tables is 26.

Quantity A

The number of tables occupied by only 1 person

Quantity B

9




In the figure shown, equilateral triangle PQR is inscribed in the circle. If the length of arc PQR is 24π, what is the radius of the circle?
$$a ≠ -2b$$

Quantity A

$$\frac{(a+b)^{2}-b^{2}}{a+2b}$$

Quantity B

$$a$$




Many people remember a time when cutting-edge architects, who are these days treated like celebrities, had ____________ relationship with the public: for much of the 1960s, big new buildings in cities were often cause for hostility, not celebration.
In this otherwise ____________ study, the internal tensions resulting from the increasing integration of the United States with the world economy are simply mentioned rather than analyzed.
On the number line, points R, S, and T have coordinates r, s, and t, respectively, where r=2t. Point R is to the right of point S, and point T is to the left of point R.

Quantity A

t

Quantity B

s


Approximately what was the ratio of the area of the non federal rural land in Maryland to the total area of the nonfederal rural land in the contiguous United States in 1997?
Of the six states listed in the table, how many contained more than 2 percent of the nonfederal development land in the contiguous United States in 1997?
Which of the following is closest to the percent of federal land in the contiguous United States that was part of California in 1997?
If n is a positive integer, which of the following CANNOT be the units digit of $$2^{n}-1$$?
Machine X, working at a constant rate, can perform a job in T hours. Machine Y, working at a different constant rate, can perform the same job in 3T hours. If the two machines work simultaneously at their respective constant rates, how many hours will it take for the machines to perform the job, in terms of T?
Set S consists of all three-digit positive integers that contain only the digits 1, 2, 3, 4, or 5.

Quantity A

The number of integers in S in which all three digits are different

Quantity B

60


The first term of an infinite sequence is 4, and each term after the first term is 7 greater than the preceding term. What is the 64th term of the sequence?
By sucking people into towns and draining the countryside of communities and workers, the passenger train (i)____________ its reason for being: moving people between country districts and urban centers. The major (ii)____________ urbanization in the United States, the railway fell victim to it. Once the overwhelming majority of nonelective journeys were either very long or very short, it became (iii)____________ for people to undertake them in planes or cars.

共收录:

25000 +道题目

211本备考书籍

最新提问