There is no algebraic way of isolating X unfortunately.
For these equations, you have to solve with numerical approximation.
I suggest Newtons method if you know calculus.
Answer:
10x
Step-by-step explanation:
a=p
base=10
height=x
area=10 times x
perimeter=10+10+x+x
to work out area you times the base (10) by the height however since the height is x in this instant the answer is 10 times x which simplifies to 10x
Answer:
74.02cm
Step-by-step explanation:

Let

, so that

and

. The integral is then equivalent to