Answer:
Step-by-step explanation:
Let
y=2x-10
Switch x and y,
x=2y-10
x+10=2y
(x/2)+5=y
So
87.1
remember a²+b²=c²
take the root on both sides, then you get what the calculation in the screenshot means.
Answer:
The area of each section of the circle is
Step-by-step explanation:
we know that
The area of a circle is equal to
we have
substitute
To find the area of each section divide the complete area of the circle by
so