Q144 of 196 Page 249

Fill in the blanks

First blank:

144 × 2^-3

We know by laws of exponents, a^-n =

⇒ 144 × 2^-3 =

= 18

Second blank:

18 × 12^-1

We know by laws of exponents, a^-n =

⇒ 18 × 12^-1 =

Third blank:

We know by laws of exponents, a^-n =

⇒

∴ 144 × 2^-3 = 18; 18 × 12^-1 = ; =

142

The paper clip below has the indicated length. What is the length in standard form.

143

Use the properties of exponents to verify that each statement is true.

C. 25(5^n–2) = 5ⁿ

145

There are 864,00 seconds in a day. How many days long is a second?

Express your answer in scientific notation.

Out of the four options, only one is correct. Write the correct answer.

In 2ⁿ, n is known as