Exponents and Scientific Notations

Which number is the EXPONENT?
4^{2 =} 16

• 4

• 2

• 16

• not here

Simplify.

• 9⁵

• 9⁹

• 1⁵

• 9^-5

Which is GREATER?
2⁷ or 7²

• 2⁷

• 7²

• Neither, they are equal

Which one shows the numbers in order from biggest to smallest?

• 3²,2³,6¹

• 6¹,2³,3²

• 2²,6¹,3²

Simplify

• z

• z¹²

• 1

• z¹⁴

Simplify

• z¹⁵

• z⁸

• z³

• z¹¹

Simplify

• x⁴

• x⁶

• x²⁹

• x²⁰

Change from standard form to scientific notation:  0.000398

• 39.8  x  10^-5

• 3.98  x  10^-5

• 3.98  x  10^-4

• 39.8  x  10^-6

In Australia, the people use approximately 2,240,000,000 pounds of bread in a year. How can we write this number in scientific notation?

• 2.240 x 10^-9

• 224 x 10⁶

• 2.2 x 10⁶

• 2.240 x 10⁹

Simplify

• x¹²

• x¹⁷

• x⁶

• x²³