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OG18-数学分册 When 24 is divided by the positive integer n, the remainder is 4. Which of the following statements about n must be true?I. n is even.II. n is a multiple of 5.III. n is a factor of 20.
OG15 OG16 OG17 OG18 OG19 OG20 OG2022 If n = 20! + 17,then n is divisible by which of the following?I.15II.17III.19
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.$$\frac1 x \bigodot \frac1 y$$ =$$ y \bigodot x$$
If the sum of n consecutive integers is 0,which of the following must be true?I. n is an even number.II. n is an odd number.III. The average (arithmetic mean) of the n integers is 0
OG12 OG15 OG16 P, r, s, t, uAn arithmetic sequence is a sequence in which each term after the first is equal to the sum of the preceding term and a constant.If the list of letters shown above is an arithmetic sequence, which of the following must also be an arithmetic sequence?I 2P, 2r, 2s, 2t, 2uII P-3, r-3, s-3, t-3, u-3III $${P}^{2}$$, $${r}^{2}$$, $${s}^{2}$$, $${t}^{2}$$, $${u}^{2}$$
The author of the passage would most likely agree with which of the following about Milankovitch Cycles.I. The eccentricity of the earth's orbit is the least important of the causes of the seasons.II. The sun is gradually changing position relative to the earth over 20,000 year periods of time.III. The dates of the equinoxes and solstices change over time.
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The passage suggests that, as of the time of the ruling on <i>West Coast Hotel v. Parrish, i>pressures placed upon workers that are not strictly related to working hours are
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First-year sales of the film <i>Bridge on the River Kwaii> obtained in 1957, and estimated to be 27 million dollars, made it the largest-grossing movie of the year.
190603 K equals to 1 plus the product of all prime numbers from 2 to 29, inclusive, which of the following statement about k is true?
I. k can be divisible by prime numbers within 2-29
II. k is divisible by 30
III. k can be divisible by a prime number greater than 29
Magoosh If n = 2*3*5*7*11*13*17, then which of the following statements must be true?I. $$n^{2}$$ is divisible by 600 II. n + 19 is divisible by 19III.$$\frac{n+4}{2}$$ is even
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Sequence is composed of n integers, where , whose arithmetic mean is x. If each element of S is multiplied by 3, the arithmetic mean of the resulting integers remains x. Which statement(s) below must be true?

  2. The largest and smallest members of S have the same absolute value.
  3. S contains both positive and negative numbers.
OG19-数学分册 If $$x^{2} - 2x - 15 = 0$$ and $$ x > 0$$ which of the following must be equal to 0 ? I. $$x^{2} - 6x +9$$ II. $$x^{2} - 7x +10$$ III. $$x^{2} - 10x +25$$
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If , which of the following statements must decrease as decreases?

  I.

 II.

III.

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If , which of the following must decrease as decreases?

I.

II.

III.

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If <i>ni>, <i>mi>, and <i>pi> are distinct, five-digit positive integers and if p=n+m, is the thousands digit of <i>pi> equal to the sum of the thousands digits of<i> n i>and <i>mi>?

  1. The tens digit of <i>pi> is equal to the sum of the tens digits of <i>n i>and <i>mi>.
  2. The hundreds digit of <i>pi> is equal to the sum of the hundreds digits of <i>ni> and <i>mi>.
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If function <i>fi>(<i>zi>) represents the sum of the distinct prime factors of <i>zi>, then what is the value of <i>fi>(<i>fi>(250))?
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The figure above indicates the Quadrant labels for a rectangular coordinate system. In which two quadrants does the equation lie if ?
OG16 OG17 OG18 OG19 OG20 OG2022 GMAT、gmat题库、gmat模考、gmat考满分The graph of the equation xy = k, where k < 0, lies in which two of the quadrants shown above?
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If <i>xyzi> ≠ 0, is <i>xi>9<i>yi>4<i>zi>5 > 0?

(1) <i>yzi> < 0

(2) <i>xzi> > 0
OG18-数学分册 If $$4 < \frac{7 - x}{3}$$, which of the following must be true?I. 5 < xII. |x + 3| >2III. - (x + 5 ) is positive.