来源： 3551人已做 680难度 81.8%正确率
来源： 3570人已做 600难度 91.9%正确率
来源： 3927人已做 600难度 87.8%正确率
来源： 4480人已做 600难度 94%正确率
来源： 4704人已做 600难度 92.6%正确率
if p ≠0 and p−1−p2p =rp then r=
来源： 520人已做 600难度 90.4%正确率
来源： 3132人已做 680难度 66.2%正确率
来源： 3111人已做 680难度 72%正确率
On Saturday morning, Malachi will begin a camping vacation and he will return home at the end of the first day on which it rains. If on the first three days of the vacation the probability of rain on each day is 0.2, what is the probability that Malachi will return home at the end of the day on the following Monday?
来源： 817人已做 700难度 81%正确率
来源： 3107人已做 680难度 68.5%正确率
【OG20-P410-482题】The passage is primarily concerned with
An investment has been growing at a fixed annual rate of 20% since it was first made, no portion of the investment has been withdrawn, and all interest has been reinvested. How much is the investment now worth?(1)The value of the investment has increased by 44% since it was first made.(2)If one year ago $600 had been withdrawn, today the investment would be worth 12% less than it is actually now worth
the passage implies that which of the following is a possible consequence of a company’s adoption of innovations that increase its eco efficiency?
【OG20-P594-714题】Public health expert: Increasing the urgency of a public health message may be counterproductive. In addition to irritating the majority who already behave responsibly, it may undermine all government pronouncements on health by convincing people that such messages are overly cautious. And there is no reason to believe that those who ignore measured voices will listen to shouting.The two sections in boldface play which of the following roles in the public health expert’s argument?
Dressed as a man and using the name Robert Shurtleff, Deborah Sampson, the first woman to draw a soldier’s pension, joined the Continental Army in 1782 at the age of 22, was injured three times, and was discharged in 1783 because she had become too ill to serve.
According to a study published in The New England Journal of Medicine, aspirin prevents blood clots just as well as a commonly used and more expensive blood-thinning drug does.
In an effort to reduce their inventories, Italian vintners have cut prices; their wines have been priced to sell, and they are.
【OG20-P148-14题】Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?
The figures above show a hexagonal nut that has a width of 1516 inches and a wrench that, in order to fit the nut, must have a width of at least 1516 inches. Of all the wrenches that fit the nut and have widths that are whole numbers of millimeters, the wrench that fits the nut most closely has a width of how many millimeters?(Note: 1 inch ≈25.4 millimeters)
A cash register in a certain clothing store is the same distance from two dressing rooms in the store. If the distance between the two dressing rooms is 16 feet, which of the following could be the distance between the cash register and either dressing room? I. 6 feet II. 12 feetIII. 24 feet