Answer:
the answer is x=6
Step-by-step explanation:
hoped I helped
Answer:
√7 units, √98 units
Step-by-step explanation:
Pythagorean theorem
a^2+b^2=c^2. So 9+b^2=16. So b^2=7. So b=√7
a^2+b^2=c^2. SO 49+49=c^2. So 98=c^2. So c=√98.
X=25 jjjjjjjjjjjjjjjjjjjjjjjjjjjj
<u>ANSWER</u>

<u>EXPLANATION</u>
Given 
and

We want to find

This means we substitute the function
in to another function
and evaluate.
This implies that;

We expand the parenthesis to obtain;

We simplify further to obtain;

Hence the correct answer is A