Wednesday

April 16, 2014

April 16, 2014

Posted by **andytrfmn** on Wednesday, February 20, 2008 at 1:27pm.

- algerbra -
**Damon**, Wednesday, February 20, 2008 at 1:35pm10^7 * 10^3

-------------

10^4 *10^-9

to multiply, add exponents if the base is the same.

Of course that means to divide, subtract exponents.

Since the base for all of these is ten, all we have to do is add and subtract.

7 + 3 - 4 - -9 of course - - is +

7 + 3 - 4 + 9 = 15

so the answer is :::

10^15

- algerbra -
**Guido**, Wednesday, February 20, 2008 at 4:59pmWe have this:

10^7 * 10^3

------------- =

10^4 * 10^-9

We can multiply the numerators and denominators as step one, if you'd like.

10^7 * 10^3 = 10^10 = our numerator.

10^4 * 10^-9 = 10^-5 = our denominator.

We now have this fraction:

10^10/10^-5

Since we have the SAME BASE of 10 in the numerator and denominator, we simply SUBTRACT THE EXPONENTS.

Our exponents are:

10 - (-5) = 10 + 5 = 15

Final answer: 10^15, which is read:

"ten to the fifthteenth power."

The word power also means exponent, which also means degree.

Is that clear?

**Related Questions**

physics - The disk shaped head of a pin is 1.0 mm in diameter. Which of the ...

Algebra II - The problem states: Saturn is approximately 1.4x 10 to the 9th ...

Math/Standard and scientific notation - Express each measure in standard form. (...

Science - In order to sail through the frozen Artic Ocean, the most powerful ...

Math - I need help with these questions: Copy the equations. Add brakcets to ...

Math - Which expression represents the larger number? A. 40.1 x 10 to the -6 ...

Math 8R - Operating with Scientific Notation HELP! - In constructing the Mall of...

math - sorry its 5t+(6 times 10 power neg.3)....and the answer should be1.08 ...

Pre-Algebra - Find each product or Quotient. Express using exponents. 1. The ...

math - how to solve (4.8 x 10 to the 2nd power) divided by 2.4 x 10 to the 10 th...