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OG19-数学分册	Half of a large pizza is cut into 4 equal-sized pieces, and the other half is cut into 6 equal-sized pieces. If a person were to eat 1 of the larger pieces and 2 of the smaller pieces, what fraction of the pizza would remain $$\underline{uneaten}$$?
Ready4	Golf clubs with graphite shafts are favored by many less-experienced players to maximize their shot's distance, designed to be both lightweight and to take less force to swing.
PREP07 Test 2	A certain basket contains 10 apples, 7 of which are red and 3 of which are green. If 3 different apples are to be selected at random from the basket, what is the probability that 2 of the apples selected will be red and 1 will be green?
Ready4	How many factors of 60 are even?
Ready4	Trail mix R contains 10% nuts, trail mix S contains 20% nuts, and trail mix T contains 18% nuts. If $r$ grams of trail mix R, $s$ grams of trail mix S, and $t$ grams of trail mix T are combined to give $r+s+t$ grams of trail mix that contain 15% nuts, what is $s$ in terms of $r$ and $t$ ?
PREP07 Test 2	The table shows the numbers of greeting cards for various occasions sold at a certain store last year. According to the table, for which of the following occasions was the number of cards sold closest to 1/12 of the number of birthday cards sold?
OG12 OG16 OG17 OG15 OG18	At a certain instant in time, the number of cars, N, traveling on a portion of a certain highway can be estimated by the formulaN=$$20L\frac{d}{(600+s^2)}$$where L is the number of lanes in the same direction, d is the length of the portion of the highway, in feet, and s is the average speed of the cars, in miles per hour. Based on the formula, what is the estimated number of cars traveling on a $$\frac{1}{2}$$ mile portion of the highway if the highway has 2 lanes in the same direction and the average speed of the cars is 40 miles per hour? (5,280 feet = 1 mile)
OG19 OG20 OG2022	The symbol $$\Delta$$ denotes one of the four arithmetic operations: subtraction, multiplication, or division. If 6 $$\Delta$$ 3 $$\le$$ 3, which of the following must be true? I. 2 $$\Delta$$ 2=0 II. 2 $$\Delta$$ 2=1 III. 4 $$\Delta$$ 2=2
	This is a Time VS QoQ Rate of Growth chart for Facebook between June 2009 and April 2012 - just before its IPO in May 2012. The dotted line shows actual data while the smooth line shows an estimated regression of those data points.Choose the appropriate drop down that best fills in the sentence with accurate information about the graph.A) The quarter over quarter growth rate tookmonths to fall from the 10%-15% range down to the 5%-10% range.B) The graph shows there tends to be a seasonal effect on the decline of Facebook's rate of growth during the time period shown.
	The graph to the left shows the results of a survey of Asian Americans and their perspective on life in America. Respondents who replied "Don't know" are not included in the chart. Note the lifestyle aspect of Strength of family ties provides an outlier data point relative to other lifestyle categories.A) The average (arithmetic mean) of the percentage of respondents that said a particular lifestyle aspect was better in their country of origin waspercentage points higher with the inclusion of the skewed outlier data point than it was without the inclusion of the skewed outlier data point.B) On average, the number of respondents who did not respond for each of the lifestyle categories was
	Plastic SurgeryThe chart here shows the segmentation of different types of invasive and non-invasive froms of plastic surgery for people in countries around the world.For each of the following statements, select YES if the statement can be shown to be true based on the information in the table. Otherwise select NO.Of the available continents, has the lowest number of breast surgeries per 1,000 population as a percentage of total plastic surgeries surveyed.Every country has more surgically invasive procedures than non-invasive ones.has the highest percentage of non-invasive surgeries.
	The graph shows the Mayberry Utilities Commission's corporate strategy. The ovals represent changes that the commission could institute, and the arrows lead to the expected effect of instituting the specified change.For each of the following, use the drop-down menu to create the most accurate statement on the basis of the corporate strategy map.It is expected that, other than increasing the rate of competitiveness, another way to improve customer satisfaction would be to improve .It is expected that, if neither marketing nor customer management processes could be improved, increasing or improving knowledge of would help increase net income.
GI	The graph depicts the per-person dietary intake of foods in 4 categories for the people of Nation X for the years 1909 through 2000. A decline in consumption in all 4 categories strongly suggests an overall food shortage rather than a simple change in dietary pattern.From each drop-down menu, select the option that creates the most accurate statement about food consumption in Nation X based on the information provided.The graph suggests that Nation X most likely experienced a food shortage shortly before the year .For the year that the total dietary intake of carbohydrates was lowest, the per-person intake of carbohydrates was approximately times the per-person intake of dietary fiber.
	Apple Stock Price The stock chart to the left shows the price of Apple stock from the May 2011 to May 2012. The corresponding bar graph on the bottom displays the average daily volume for Apple stock on any given day. For example, if 1 million shares of Apple were traded on a particular day where Apple was roughly at $100 per share, then $100M worth of Apple stock was traded that day. A) The dollar ($) amount of Apple stock that was traded per day near the trough of the stock in June of 2011 was closest to of the dollar amount of Apple stock that was traded just after the stock peaked in April of 2012 and trended lower. B) How many of Apple's 75 percentage point increase in stock price from Dec 2011 to the peak in April 2012 was erased by the following decline from 630 to 555?
	In a certain animal population, for each of the first 3 months of life, the probability that an animal will die during that month is $$\frac{1}{10}$$. For a group of 200 newborn members of the population, approximately how many would b expected to survive the first 3 month of life?
Ready4	As part of a healthy diet, ancient grains now only account for less than 1 percent of calories consumed annually, but consumption is nearly expected to triple by the end of the decade, which would deliver nutrition to an additional 3 million families.
191222 还原机经选题: 数论&代数	A two-digit number can be formed by the integers in set {1, 5, 7, x, y}. The five integers could form 20 two-digit numbers without any digit repeated. We find that the sum of all the 20 numbers is 1056=44*24, then what is the value of x+y?
Ready4	Six distinct pairs of shoes are in a closet. If three shoes are selected at random from the closet, what is the probability that no two of the chosen shoes make a pair?
GWD	The findings of the study mentioned in highlight text, if valid for rain-forest regions in general, suggest that which of the following is an obstacle most likely to be faced by those wishing to promote rain-forest preservation by implementing the proposal mentioned in line 1?
PREP07 Test 2	From a group of 21 astronauts that includes 12 people with previous experience in space flight, a 3-person crew is to be selected so that exactly 1 person in the crew has previous experience in space flight. How many different crews of this type are possible?