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 $$r+(s*10^{6})+(t*10^{12})$$?


The figure shows the standard normal distribution, with mean 0 and standard deviation 1, including approximate probabilities corresponding to the six intervals shown.

The random variable X is normally distributed with mean 140 and standard deviation 12.

Quantity A

P(125 < X < 131)

Quantity B

P(152 < X < 158)


On the first day of a sale, a storekeeper sold $$\frac{3}{5}$$ of the goods in the initial inventory. On the second day of the sale, the storekeeper sold $$\frac{1}{4}$$ of the goods that remained at the end of the first day of the sale.

Quantity A

The fraction of the goods in the initial inventory that remained at the end of the second day of the sale

Quantity B

$$\frac{3}{10}$$






Three different television models-K, N, and P-are for sale at a local store. The cost of model K is 20 percent greater than the cost of model N, and the cost of model N is 25 percent greater than the cost of model P. The cost of model K is what percent greater than the cost of model P?

_____%
When positive integer m is divided by 6, the remainder is 4. When positive integer p is divided by 6, the remainder is 5. What is the remainder when the product mp is divided by 6?
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?


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?
1, 2, 3, ......, m

1, 2, 3, ......, n

The first sequence consists of m consecutive integers, and the second sequence consists of n consecutive integers, where m is even and n is odd.

Quantity A

The percent of integers in the first sequence that are odd

Quantity B

The percent of integers in the second sequence that are even




A 10-foot long board is parallel to level ground, and the fulcrum supporting it is at the board's midpoint, as shown in the figure above. If the board is tipped, with the fulcrum remaining at the board's midpoint, so that the board's left end just touches the ground, which of the following is closest to the number of feet that the right end of the board is above the ground?
x > -1

Quantity A

$$\frac{x^{3}}{9}$$

Quantity B

$$(\frac{x}{9})^{3}$$


In the freshman class at College X, there are 400 students taking a certain French course and 500 students taking a certain English course. If 200 students in the freshman class are taking both the French course and the English course, how many students in the freshman class are taking the French course or the English course or both?


For how many of the categories shown was the dollar amount of the expenditures in 1995 less than $1 billion?


Approximately what was the ratio of the dollar amount of the expenditures for prescriptions in 1995 to the dollar amount of the expenditures for prescriptions in 1970?


From 1970 to 1995. the dollar amount of expenditures for nursing home care increased by approximately what percent?


The weights of the individual boxes in a shipment are listed in the table above, along with the numbers of boxes for three of the weights. The average (arithmetic mean) weight of the boxes weighing 5 or 10 kilograms was 7.5 kilograms. The average weight of the boxes weighing 20 or 40 kilograms was 35 kilograms. What was the total number of boxes that were shipped?


W X Y Z is a square and XV > VZ.

Quantity A

k

Quantity B

45


1 foot=12 inches

1 yard=3 feet

1 mile=5,280 feet

Approximately how many cubic yards of asphalt are needed to cover a level road that is $$\frac{1}{2}$$ mile long and 24 feet wide with a layer of asphalt that is 4 inches thick?
Which of the following is equal to $$\frac{1}{5}(30^{7})$$?
The force of the evidence cited in the passage is most seriously weakened if which of the following is true?


In the figure shown, the small circle is tangent to the large circle and passes through the center O of the large circle. If the area of the shaded region is 1, what is the diameter of the small circle?

共收录:

25000 +道题目

196本备考书籍

最新提问