The speed of light is 3*$$10^{8}$$ meters per second, rounded to the nearest $$10^{8}$$ meters per second. A "light-hour" is the distance that light travels in an hour.
Quantity A:The number of kilometers in a light-hour
Quantity B:$$10^{10}$$
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y+5 > x
Quantity A:y+2
Quantity B:x-2
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In quadrilateral QRST, the length of RS is less than the length of QT, and RS is parallel to QT.
Quantity A：The length of QR
Quantity B：The length of ST
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Quantity A:The standard deviation of the numbers 45, 64, 83, and 53
Quantity B:The standard deviation of the numbers 55, 81, 47, and 62
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x > 0 and $$\frac{5}{27}$$$$x^{2}$$ = x
Quantity A:x
Quantity B:5
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r > 0
Quantity A:The area of a circular region with radius r
Quantity B:The area of a circular region with radius $$r^{2}$$
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A certain machine devotes 45 seconds every 3 hours to a system check, and the machine is in operation 24 hours a day. At this rate, how many days of production will it take for the machine to spend a total of 3 hours on systems checks?
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The table above shows a certain store's weekly revenue and expenses for five weeks. What is the store's median weekly profit for the five weeks?
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In the decimal number 1,375.2648, which digit has a place value that is 1,000 times the place value of the digit 6?
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In the figure above, BC is tangent to the circle with center O and radius 6.
If BA=4, what is the area of the triangular region BCO?
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On May 5, 2004, the closing price of Stock A was $60.00, which was a decrease of 8 percent from the closing price of the stock on the previous day, May 4, 2004. On May 6, 2004, the closing price of the stock was exactly the same as the closing price on May 4, 2004. What was the percent increase in the closing price of the stock from May 5, 2004 to May 6, 2004?
Give your answer to the nearest whole percent.
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Approximately what percent of the families in the sample own more than 3 motor vehicles?
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How many of the families own exactly 2 motor vehicles?
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If a family were selected at random from the survey sample, what is the probability that the family would own more than 2 motor vehicles?
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If $$3^{x}$$+$$3^{x}$$+$$3^{x}$$ = $$9^{x-2}$$, what is the value of x?
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Each digit of a 20-digit number is either a 1, 2, 3, 4, or 5. If the average (arithmetic mean) of 15 of the 20 digits of the number is 2.8 and if M is the average of all 20 digits of the number, then M must satisfy which of the following inequalities?
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The frequency distribution above summarizes the numbers of minutes, rounded to the nearest integer, that 46 students individually spent studying for an exam. Based on the information given, which of the following statements must be true?
Indicate all such statements.
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The operation △ is defined by r△s=12$$r^{-1}$$(s+3) for all positive numbers r and s. If x△3=18, what is the value of x?
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у=2x+1, where x > 0.
Quantity A: The percent increase in the value of у when the value of x is increas
Quantity B: 10%
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