Exponents Scientific Notation and Rational Numbers

Simplify and express with positive exponents

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Simplify and express with positive exponents:

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Simplify and express with positive exponents:

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Express in scientific notation: The average rain drop is about 0.000285 ounces.

• 2.85 x 10^-4 ounces

• 2.85 x 10^-5 ounces

• 28.5 x 10^-5 ounces

• 285 x 10^-6 ounces

Rewrite the expression using a rational exponent:

a

b

c

3

2

5

What is the value of (-2)^3?

• -8

• -6

• 6

• 8

How long will it take to fill the pool? A swimming pool that holds 7.5 · 10⁶ cubic feet of water is being filled at a rate of 1.25 · 10² cubic feet per minute.

• 60000 minutes

• 50000 minutes

• 6000 minutes

• 5000 minutes