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If y = (x + 3)2, then (-2x - 6)2 must equal which of the following?
(A) -4y2
(B) -2y2
(C) -4y
(D) 2y
(E) 4y |
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If xy = 2 and xy 2 = 8, what is the value of x ?
(A) [image]
(B) 2
(C) 4
(D) 8
(E) 16 |
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If n is an odd integer, which of the following must be an odd integer?
(A) n - 1
(B) n + 1
(C) 2n
(D) 3n + 1
(E) 4n + 1 |
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| How many different three-digit numbers between 100 and 1,000 have 5 as the tens digit? |
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Definition
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- The sum of the digits is 6.
- Each digit is different.
- The number is odd.
What is the greatest 4-digit number that has all of the characteristics listed above? |
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