I'll mark the first correct answer brainliest. i only need the bottom question. thanks :)
1 answer:
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Answer:
Step-by-step explanation:
Given
Represent the Length as L and the Width as W.
So, we have the following:
Required
Determine the perimeter
The area of a rectangle is calculated as thus:
Substititute 65 for Area
Substitute 2W + 3 for L
This gives:
Equate to 0
Expand:
Factorize:
or
But width can't be less than 0.
So:
Recall that:
The perimeter is calculated as thus:
Considering the given equation of the circle, the true statements are given as follows:
- The radius of the circle is of 3 units.
- The center of the circle lies on the x-axis.
- The circle has the same radius as the circle with equation x² + y² = 9.
The equation of a circle of center and radius r is given by:
The equation given is:
x2 + y² - 2x - 8 = 0.
Completing the squares, the equation is given as follows:
(x - 1)² + y² = 8 + 1
(x - 1)² + y² = 9.
Researching the problem on the internet, the true statements are:
- The radius of the circle is of 3 units.
- The center of the circle lies on the x-axis(
).
- The circle has the same radius as the circle with equation x² + y² = 9.
More can be learned about the equation of a circle at brainly.com/question/24307696
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