I have the answer attached.
Area of a Circle: The area of a circle is the amount of space the circle takes up. To compute the area of a circle, we use the formula a=πr^2 where r is the radius of the circle.
Radius: The radius of a circle is the distance from the center of the circle to any point on the circle.
Step-by-step explanation:
dy/dx
= d/dx [x / (1 - x²)]
= [(1 - x²)(1) - (x)(-2x)] / (1 - x²)²
= (1 + x²) / (1 - x²)².
When dy/dx = 1, (1 + x²) / (1 - x²)² = 1.
=> 1 + x² = 1 - x²
=> 2x² = 0, x = 0.
Also when x = 0, y = (0) / [1 - (0)²] = 0.
Hence the coodinates is (0, 0).
Answer: x = 9
x = -5
Step-by-step explanation:
<span>5x = –25 + 5y ---> 5x - 5y = -25 (1)
10y = 42 + 2x </span>---> 2x - 10y = -42 (2)
divide equation (2) by 2
so
x - 5y = -21
now you have
5x - 5y = -25
x - 5y = -21
-----------------subtract
4x = -4
x = -1
substitute x = -1 into 5x - 5y = -25
5x - 5y = -25
5(-1) - 5y = -25
-5 - 5y = -25
-5y = -20
y = 4
answer
(-1 , 4)
