Posted by **Gabby** on Wednesday, February 5, 2014 at 1:06pm.

Plz help me with the following problems.

Simplify. 5^-1(3^-2)

Simplify. mn^-4/p^0q^-2

Write a scientific notation. 0.0042

Write in standard notation. 6.12*10^3

Simplify. Write in scientific notation. 0.5(8 * 10^5)

Simplify. Write in scientific notation. (9 * 10^-3)^2

Evaluate 1/2a^-4b^2 for a=-2 and b=4.

Simplify (4xy^2)^3(xy)^5

Simplify (2t^-3)^3(0.4r)^2

- Algebra 1 -
**Gabby**, Wednesday, February 5, 2014 at 1:26pm
Actually I only need help with the second problem,and the 7th problem,

Simplify. mn^-4/p^0q^-2

Evaluate 1/2a^-4b^2 for a=-2 and b=4.

- Algebra 1 -
**Steve**, Wednesday, February 5, 2014 at 1:34pm
p^0 = 1, so

mn^-4/p^0q^-2 = (m/n^4) / (1/q^2) = mq^2/n^4

1/(2 (-2)^-4 (4)^2)

1/(2 (1/16) (16))

1/2

Note that (-2)^4 = (-2)(-2)(-2)(-2) = +16

- Algebra 1 -
**Gabby**, Wednesday, February 5, 2014 at 1:36pm
Thank you Steve~!

## Answer this Question

## Related Questions

- Maths;Check Answers Please :P - 1. Simplify. 5^–1(3^–2) My answer: 1/45 3. Write...
- Algebra - Can you please check my work? You have helped other students I know. ...
- Algebra (check my answers) - Please check these answers. Multiply -7(2a2 -4) = -...
- Algebra - Write in standard notation. 6.12 X 10^3. A. 6120 B. 612 C. 61,200 D. ...
- 7th grade math questions Scientific Notation - 19. Write the size of a grain of ...
- math ALG 2!scientific notations helpp - Write the following value in scientific ...
- math ALG 2!scientific notations helpp - 1.)Write the following value in ...
- scientific notation - simplify write in scientific notation (9x10^-3)^2
- scientific notation - simplify write in scientific notation (9x10^-3)^2
- Algebra 1 - Simplify. Write each answer in scientific notation. 1.) (3 * 10^5)^2...

More Related Questions