Write in scientific notation.89,000

A. 8.9 × 10-5
B. 8.9 × 105
C. 8.9 × 104
D. 8.9 × 10-4  


Answer: C

Mathematics

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Factor completely.15x2 + 19xy + 6y2

A. (15x + y)(x + 6y) B. (15x + 2y)(x + 3y) C. (3x - 2y)(5x - 3y) D. (3x + 2y)(5x + 3y)

Mathematics

The general term of a sequence is given. Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.{5n2 - 2}

A. Arithmetic, d = 5 B. Geometric, r = 5 C. Arithmetic, d = -2 D. Neither

Mathematics

Find an equation of variation for the given situation.y varies jointly as x and the square of z, and y = 160 when x = 8 and z = 2

A. y = 5xz2
B. y = 10xz
C. y = 
D. y = 6xz2

Mathematics

Simplify. Assume that no radicands were formed by raising negative quantities to even powers.3 + 9

A. 12
B. 84
C. 27
D. 12

Mathematics