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# Review 3 - Review3 Simplify. 1 4 5 4 7 A 1635 1 B 4 35 C...

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Review 3 Simplify. Write the answer with positive exponents. 1) 4 5 · 4 7 A) 16 35 B) 4 35 C) 16 12 D) 4 12 1) 2) 8x 4 · - 4x 8 2) Simplify. Assume that variables in the exponent represent nonzero integers. 3) x 2a · x 9a · x 8a + 2 A) ax 144a + 2 B) ax 19a + 2 C) x 144a + 2 D) x 19a + 2 3) Simplify. Write the answer with positive exponents. 4) ( - 8x) 0 - 8x 0 4) 5) x 9 y 13 x 5 y 7 5) 6) - 40x 11 y 9 z 4 8x 3 y 3 z 3 A) - 5x 8 y 6 B) x 8 y 6 z C) - 5x 7 y 5 z D) - 5x 8 y 6 z 6) Simplify. Assume that variables in the exponent represent nonzero integers. 7) x 5a + 7 · x 3a x a 7) Simplify. Write the answer with positive exponents. 8) 1 2 - 3 8) 9) x - 7 x - 9 9) 1

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10) x - 5 y 7 x - 2 y - 4 A) 1 x 3 y 3 B) x 3 y 3 C) y 11 x 3 D) x 3 y 11 10) Write the number in scientific notation. 11) In a certain city, the bus system carried a total of 12,700,000,000 passengers. 11) Write the number in standard notation. 12) 5.482 × 10 - 6 12) Simplify. Write the answer with positive exponents.
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