Perform the indicated operation. Write your result in scientific notation.(4 × 105)(8 × 107)

A. 3.2 × 1013
B. 32 × 1013
C. 32 × 1035
D. 3.2 × 1012

Answer: A

Mathematics

Find the character of the roots.8y2 = 3y - 6

A. Two different imaginary solutions B. Two different irrational solutions C. Two different rational solutions D. Exactly one rational solution

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Mathematics

Simplify the exponential expression.x2y-2

A.
B. y²x²
C. y¹⁶x²
D.

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Mathematics

Add or subtract. Express the answer as a mixed number.9 + 4

A. 9
B. 14
C. 12
D. 13

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Mathematics

Solve by using the addition and multiplication properties of inequalities.-24r + 4 ? -4(5r + 7)

A. r ? 8 B. r > 8 C. r < 8 D. r ? 8

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Mathematics