Question

Help?? *****20 Points*****

Answer 1

I got - 13

Hope this helps :)

Explanation:

Answer 2

The first one is

`{4}^(11)`
This this because you simply add the exponents and keep the base.

The answer to the second one is

`\frac{42}{ {x}^(5) }`
This is because you multiply the coefficients 6x7 = 42 then add the exponents -8 + 3 = -5 and get

`{42x}^( - 5)`
However a negative exponent must be moved to the denominator leaving you with the answer I stated.

The answer to the next question is

`5.6 * {10}^(12)`
The first step would be to multiple your coefficients 7 x 8 and exponents. By multiplying the 10 powers you just add the exponents. This would result in

`56 * {10}^(11)`
However, this is not in scientific method because 56 > 9. To fix this you, move the decimal place over one on 56 to get 5.6 and add an exponent to 11 because you made 56 smaller by a factor of 10.

The answer to the final question is

`6.3 * {10}^( - 13)`
Follow the same procedure I stated above! 9 × 7 = 63. You still add one though so -14 + 1 = -13.