展开全部

题目列表

题目内容
The watchword in astronomy is _____________: all claims must be examined critically in the light of current knowledge, and one's mind should never be closed to the possibility that a theory could be wrong.
The genius of the scientific method is that it (i) _____________ the dictum of Aristotle that the goal of science is knowledge of the ultimate cause of things. True science, we now know, advances human knowledge by (ii) _____________ ultimate cause and focusing instead on the testing of empirical hypotheses.
The "carbonaceous meteorites" are important to the first of two alternative possibilities discussed in the passage because these meteorites.
It can be inferred that the author of the passage would agree with which of the following statements about the United States Endangered Species Act?
The statements given, if true, most strongly support which of the following?
It can be inferred that the author of the passage mentions Fern's “sharply humorous social criticism'" primarily in order to
Which of the following can be inferred about the action mentioned in the highlighted portion of the passage?


The circumference of a circle with radius 3 is divided into 4 arcs of lengths x, y, z, and w, as shown.

Quantity A

The average (arithmetic mean) of x, y, z, w

Quantity B


In the xy-plane, the point (3p, 5p-1) lies on the line with equation y=-$$\frac{1}{2}$$x-$$\frac{5}{3}$$. What is the value of p?

Give your answer as a fraction.
The average(arithmetic mean) of the r integers in a certain list is 23, and the average of the k integers in another list is 20. If r=4k, what is the average of the r+k integers in the two lists?
An engineer draws two concentric circles on a blueprint. If the diameter of the outer circle is 6 centimeter greater than the diameter of the inner circle, how much greater, in centimeters, is the circumference of the outer circle than the circumference of the inner circle?


Quantity A

RS

Quantity B

3


Quantity A

$$\frac{3^{50}}{4^{50}}$$

Quantity B

$$\frac{6^{25}}{8^{25}}$$


In 1990 in neighborhood V, $$\frac{1}{3}$$ of the foreign-born population whose region of origin was Asia came from China. Approximately what fraction of the entire foreign-born population in neighborhood V came from China?
A list of the names of the people of the entire 1990 foreign-born population in neighborhood V was generated, with each person's name appearing once.The names of 2 different people will be randomly selected from the list. Which of the following is closest to the probability that both names selected will be names of people whose region of origin was "Other"?
In 1990 approximately what percent of the total population of neighborhood V was foreign-born with Europe as region of origin?
The phone extensions of a certain company run consecutively from 3000 to 3799. The phone extensions that began with the digits 33 or 34 belong to Division 1 of the company. The phone extensions that end with the digit 0 or 1 belong to managers. What percent of the phone extensions of the company belong to managers in Division 1?
If 20 percent of the amount budgeted for vacation had instead been added to the amount budgeted for entertainment, which of the following is closest to the percent by which the amount budgeted for entertainment would have increased?
The three children in the Alden family contributed 30 percent of the amount budgeted for savings. The oldest child contributed $150 more than the youngest child, and the middle child contributed $60 more than the youngest child. What was the median of the amounts that the children contributed to savings ?
In each of the years after year X, the Alden family budgeted $200 more for savings than it budgeted for savings the previous year. What is the total amount that the Alden family budgeted for savings over the 10 years beginning with year X?

共收录:

25000 +道题目

202本备考书籍

最新提问