Answer:
Leaving it in Radical form
Step-by-step explanation:
You cannot write out the entire real decimal without having to round because it is a never ending decimal like pi. If you are looking to type it into a calculator then radical form is best. However, if you are looking to add it to a decimal then converting to a decimal to show your work would be better than showing a radical.
Whenever you have a root of sqrt #, you must have the matching - (or positive).
This is because when you take a square root you get two solutions a positive and a negative.
The answer is LETTER A
If x= -1
so.
2(-1)^2-5 / (-1 +9)
=-3/8
=-0.375
Answer:

Step-by-step explanation:
Given

Required
Express as a logarithm

Take log of both sides

Apply the following law of logarithm

So, the expression becomes:


Divide both sides by log 3


Hence, the expression in base 10 is:
or 
Answer:
18.28
Step-by-step explanation:
used google calculator