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Of the following, which is greatest?
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Square S is inscribed in circle T. If the perimeter of S is 24, what is the circumference of T?
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The operation $$\bigodot$$ is defined for all nonzero numbers a and b by $$a \bigodot b =\frac a b-\frac b a$$. If x and y are nonzero numbers, which of the following statements must be true?I.$$x \bigodot xy = x(1 \bigodot y)$$II.$$x \bigodot y = -(y \bigodot x)$$III.$$\frac1 x \bigodot \frac1 y$$ =$$ y \bigodot x$$
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There are 11 women and 9 men in a certain club. If the club is to select a committee of 2 women and 2 men, how many different such committees are possible?
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The value of $$({9}\cdot{10}^{7})({9}\cdot{10}^{8})$$ is closest to which of the following?
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OG18-数学分册
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Of the goose eggs laid at a certain pond, $$\frac2 3$$ hatched, and $$\frac3 4$$ of the geese that hatched from those eggs survived the first month. Of the geese that survived the first month, $$\frac3 5$$ did not survive the first year. If 120 geese survived the first year and if no more than one goose hatched from each egg, how many goose eggs were laid at the pond?
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What is the value of the sum of a list of n odd integers?(1)n = 8(2)The square of the number of integers on the list is 64.
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If r and s are positive integers, r is what percent Of s(1)r=$$\frac3 4s$$(2)r+s=$$\frac{75} {100}$$
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Does the product jkmn equal 1?(1)$$\frac{jk} {mn}=1$$(2)$$j=\frac1 k$$ and $$m=\frac1 n$$
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OG12 OG15
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A certain expressway has Exits J, K, L, and M, in that order. What is the road distance from Exit K to Exit L ?(1)The road distance from Exit J to Exit L is 21 kilometers.(2)The road distance from Exit K to Exit M is 26 kilometers.
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OG12 OG15 OG16 OG17 OG18
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Water is pumped into a partially filled tank at a constant rate through an inlet pipe. At the same time, water is pumped out of the tank at a constant rate through an outlet pipe. At what rate, in gallons per minute, is the amount of water in the tank increasing?(1)The amount of water initially in the tank is 200 gallons.(2)Water is pumped into the tank at a rate of 10 gallons per minute and out of the tank at a rate of 10 gallons every $${2}\frac1 2$$ minutes.
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Does 2m-3n = 0?(1)$${m}!={0}$$(2)6m = 9n
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What is the value of the integer x?(1)x is a prime number.(2)31 ≤ x ≤ 37
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If P, Q, and R are three distinct points, do line segments PQ and PR have the same length?(1)P is the midpoint of line segment QR.(2)Q and R lie on the same circle with center P.
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At a monthly meeting, $$\frac2 5$$ of the attendees were males and $$\frac7 8$$ of the male attendees arrived on time. If $$\frac9 {10}$$ of the female attendees arrived on time, what fraction of the attendees at the monthly meeting did not arrive on time?
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OG16 OG17 OG18 OG19 OG20 OG2022
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 In the figure shown, the triangle is inscribed in the semicircle. If the length of line segment AB is 8 and the length of line segment BC is 6, what is the length of arc ABC?
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 In the figure shown, two identical squares are inscribed in the rectangle. If the perimeter of the rectangle is $$18\sqrt2$$, then what is the perimeter of each square?
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Box W and Box V each contain several blue sticks and red sticks, and all of the red sticks have the same length. The length of each red stick is 18 inches less than the average length of the sticks in Box W and 6 inches greater than the average length of the sticks in Box V. What is the average (arithmetic mean) length, in inches, of the sticks in Box W minus the average length, in inches, of the sticks in Box V?
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The ratio of the number of boys to the number of girls in a certain school club is 3 : 4. If there are 5 more girls than boys in the club, how many girls are in the club?
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If x and y are positive integers, and $${x}^{3}{y}^{4}={2000}$$, which of the following is the value of $$xy$$?
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