Review on Exponents and Scientific Notation

• 4³

• 2³ x 2²

• 2¹ x 2⁵

• 8²

Which expression is equivalent to (3^-4)² x 3⁵?

• 3³

• 3⁸

Which best represents the average length of a hit made by Major League Baseball players?

• 4.0 x 10² feet

• 4.0 x 10^-2 feet

• 4.0 x 10² inches

• 4.0 x 10^-2 inches

On a certain planet, Continent X has an area of 6.23 x 10⁶ square miles and Continent Y has an area of 6.36 x 10⁷ square miles.

Which statement is true?

• Continent Y is 10 times larger than Continent X.

• Continent Y is 100 times larger than Continent X.

• Continent X is 10 times larger than Continent Y.

• Continent X is 100 times larger than Continent Y.

Simplify the expression.

• 5³

• 5^-3

• 3⁵

Write the standard number 6,267,000 in scientific notation.

• 62.67 x 10⁶

• 6.267 x 10⁶

• 6.267 x 10⁴

• 6.267 x 10⁷

Simplify the expression using exponents.

• 81⁸

• 9¹⁵

• 9⁸

• 81¹⁵

Using exponents, what is the simplified form of this expression?

• 5⁹

• 1⁵

• 5¹⁴

• 5⁵

What is the value of 18⁰?

• 18

• 0

• 1

• -18

How do you write the standard number 0.00095 in scientific notation?

• 9.5 x 10^-3

• 9.5 x 10^-5

• 9.5 x 10^-4

• 9.5 x 10^-6