How will you know that the equation is a quadratic
1 answer:
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Answer:
Equation of circle:
(x-10)² + (y+8)² = 36
Step-by-step explanation:
Given that,
Center of the circle is (10, -8)
and diameter = 12
We know that radius is half of the diameter.
So, radius (r) = = 6
Now we have standard form of circle :
(x - h)² + (y - k)² = r²
Where (h,k) is the center of circle and r is the radius.
Now put the value of h, k and r in circle's equation
h =10
k = -8
r = 6
Equation of circle:
(x-10)² + (y+8)² = 36
That's the final answer.
I hope it will help you.
Answer: $196.88
Step-by-step explanation:
It is given that the rate of 1 US dollar = 0.64 euros.
Then, 1 euro =
⇒ 1 euro =1.5625 dollars
Now, 126 euros =
Hence, If we exchange 126 euros on that day, then we would receive 196.88 dollars.