Scientific Notation and Exponent Laws

Write the answer in scientific notation.

4.1 x 10⁵ + 5.5 x 10⁶ =

• 5.91 x 10⁶

• 9.6 x 10⁵

• 9.6 x 10¹¹

• 4.65 x 10⁵

Which is the largest?

• 9.5 x 10³²

• 3.1 x 10^-4

• 8.4 x 10¹⁹

• 4.8 x 10^-6

• A

• B

• C

A factory can make 3 × 10⁴ t-shirts per day, how many t-shirts will it make in 2.5 ×10² days?

• 7.5 × 10⁶ t-shirts

• 7.5 × 10⁴ t-shirts

• 75 × 10⁵ t-shirts

• none of these

(x⁵)⁴

• x⁹

• x²⁰

• x

• x⁵⁴

(5³x²y⁴)⁰

• 5xy

• 1

• 0

• 5

x⁻⁶

• 1 ⁄ x⁶

• x⁶

• -x⁶

• -1 ⁄ x⁶

Simplify.

s^-5 ⋅ s^-2

• s^-3

• ¹/_s⁷

• s^-7

• ¹/_s³

• a⁸b¹³

• a²b⁷

• a¹⁵b³⁰

• ab

According to exponent rules, when we divide the expressions we _______ the exponents.

• add

• subtract

• multiply

• divide