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If the circumference of a circle is inches, how many inches long is its radius?






The Correct Answer

The expression x2 + 2x - 15 can be written as the product of 2 binomials with integer coefficients. One of the binomials is (x + 5). Which of the following is the other binomial?

(A) (x2 - 3) (B) (x2 + 3) (C) (x - 3) (D) (x + 3) (E) (x - 5)

Correct Answer: C

Which of the following is NOT an irrational number?

(A) (B) (C) (D) (E)

Correct Answer: E

If a + 3b = 27 and a - 3b = 9, then b = ?

(F) 3(G) 9(H) 14(J) 18(K) 36

Correct Answer: F

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