Answer:
x²+y² = 64
Step-by-step explanation:
The standard form of writing the equation of a circle is expressed as;
(x-a)²+(y-b)² = r² where;
(a, b) is the centre of the circle
r is the radius of the circle
Given the diameter of the circle with endpoints (8,0) and (-8, 0)
d = √(x2-x1)²+(y2-y1)²
d = √(-8-8)²+(0-0)²
d = √(-16)²
d = √256
d = 16
radius r = 16/2
r = 8
The centre of the circle will be the midpoint of the coordinates
M = (8-8/2, 0+0/2)
M = (0/2, 0/2)
M = (0,0)
Hence the centre is at (0,0)
Get the required equation
Recall that (x-a)²+(y-b)² = r²
Substitute the centre and the radius
(x-0)²+(y-0)² = 8²
x²+y² = 64
This gives the required equation
Answer:
Step-by-step explanation:
From the question we are told that:
Diameter 
Radius
Generally the equation for Circumference of a circle is mathematically given by
Answer:
First, let's move all terms to one side,
When given this form (ax^2+bx+c=0), there will be two solutions at the end.
1) 
2) 
where, a=1, b=-8, c=6
Simplify,
Simplify,
Hope it helps!
The product should have a 1 significant digit.
<h3>Scientific notations</h3>
When multiplying Scientific notations, the significant figure of the final result must be approximated to the scientific notation that has the least decimal place.
From the question given, if we 4.5160 x 10^3, 2.09 x 107, and 5.8 x 10^3 are multiplied, the product should have 1 significant digits since the least decimal value that occur in question is 1dp
Hence the product should have a 1 significant digit.
Learn more on product of decimals here: brainly.com/question/28416295
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It would be 20,000,000 or 20 million. So B
