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Olin [163]
3 years ago
10

2. For the circle with equation , answer each question.

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0
(a) <span>For the circle with equation (x – 2)^2 + (y + 3)^2 = 9, answer each question:
You have to recognize this circular equation form.
(x-h)^2 + (y-k)^2 = r^2 
where (h,k) is the center and r is the radius
------------------------------------------------ 
What are the coordinates of the center?
Ans: (2,-3)

(B) </span>The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle<span>.

(C) </span><span>Realize that the circle is centered at the origin (no h and v) and place this point there.Calculate the radius by solving for r. Set r-squared = 16. ...Plot the radius points on the coordinate plane. ...Connect the dots to graph the circle using a smooth, round curve.</span>
Kitty [74]3 years ago
7 0
Has anyone gotten this yet??
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James correctly answered 85% of the 60 problems on his math test. how many problems did James answer correctly?
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2 years ago
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Brandon is playing hide-and-seek with Katy and Tony. Katy is hiding 63 feet south of Brandon, and Tony is hiding due east of Kat
sergij07 [2.7K]

Answer:

60 feets

Step-by-step explanation:

Given that :

Using Pythagoras rule :

Hypotenus = sqrt(Adjacent^2 + opposite^2)

From the attached picture :

x² = 87^2 - 63^2

x^2 = 7569 - 3969

X^2 = 3600

Take the square root of both sides :

X = sqrt(3600)

X = 60 feets

Hence, Katy and Tony are 60 feets apart

6 0
3 years ago
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