Write the number in scientific notation.0.00009458

A. 9.458 × 10-5
B. 9.458 × 105
C. 9.458 × 104
D. 9.458 × 10-4


Answer: A

Mathematics

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A. 18x7 - 30x2 + 1 B. 3x9 - 5x4 + x C. 3x8 - 5x3 + x2 D. 3x7 - 5x2 + x

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Use a sum-to-product identity to rewrite the expression.cos  - cos 

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

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Find the sum and simplify the answer. 

A.
B.
C.
D.

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Solve the equation.x - x = 2

A. {30} B. {60} C. {-30} D. {-60}

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