Simplify.2log2 x

A. x
B.
C. -x
D. 2x


Answer: A

Mathematics

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List the elements in the set.{x | x is a counting number less than -1}

A. {-2, -3, -4, ...} B. {0, 1, 2, ...} C. {..., -4, -3, -2} D. ?

Mathematics

Use the formula for the nth term of a geometric sequence to find the indicated term of the sequence with the given first term, a, and common ratio, r.Find a12 when a = 4, r = -3.

A. 2,125,764 B. -708,588 C. -29 D. -708,584

Mathematics

Solve the system using the substitution method. If the system has no solution or an infinite number of solutions, state this.  y = 5x - 3 y - 5x = 2

A. (0, 0) B. No solution C. Infinite number of solutions D. (5, 3)

Mathematics

Factor.7x2 - 48x - 64

A. (7x + 8)(x - 8) B. (x + 7)(x - 8) C. (8x + 7)(x - 8) D. (x - 8)(x - 8)

Mathematics