---

 

Answer/Discussion to 1a

 

*x to the zero power is 1 *Rewrite with a pos. exp. by taking recip. of base

 

(return to problem 1a)

 

Answer/Discussion to 1b

 

*When mult. like bases you add your exponents

 

(return to problem 1b)

 

Answer/Discussion to 1c

 

*When div. like bases you subtract your exponents     *Rewrite with a pos. exp. by taking recip. of base

 

(return to problem 1c)

 

Answer/Discussion to 1d

 

*When mult. like bases you add your exponents       *When div. like bases you subtract your exponents

 

(return to problem 1d)

 

Answer/Discussion to 2a  .00000146

 

Step 1:  Move the decimal point so that you have a number that is between 1 and 10.

 

*Decimal is at the beginning of the number *Move decimal to create a number between 1 and 10

 

Step 2:   Count the number of decimal places moved in Step 1 .

 

How many decimal places did we end up moving? We started at the beginning of the number .00000146 and moved it between the 1 and 4.  That looks like a move of 6 places. What direction did I it move? Looks like we moved it to the right. So, our count is -6.

 

Step 3:   Write as a product of the number (found in Step 1) and 10 raised to the power of the count (found in Step 2).

 
 

(return to problem 2a)

 

 

Answer/Discussion to 3a

 

= 71,000,000,000

*Move the decimal 10 to the right

 

(return to problem 3a)

 

---

Last revised on July 11, 2011 by Kim Seward.
All contents copyright (C) 2001 - 2011, WTAMU and Kim Seward. All rights reserved.