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prisoha [69]
3 years ago
7

Need help #14 The center of the circle is (0,-8). The radius is 9.

Mathematics
2 answers:
sattari [20]3 years ago
4 0

Answer:

C and D

Step-by-step explanation:

The equation of a circle is

(x - h)² + (y - k)² = r²      where (h,k) is the center, and r is the radius

Plug in what you were given, and simplify...

(x - 0)² + (y - (-8))² = 9²

  x² + (y + 8)² = 81

This is answer C.

We can get answer D by foiling out (y + 8)² and simpligying...

 x² + y² + 16y + 64 = 81

    x² + y² + 16y = 17    (subtract 64 from both sides)

Shtirlitz [24]3 years ago
3 0
X^2+ (y+8)^2 = 81.....this is C.
X^2 + y^2 + 16y +64=81 so x^2 + y^2 + 16y = 17.....this is D.

So I’d say C and D are correct
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A rectangular plot of land is to be enclosed by a fence. One side is along a river, and does not need to be enclosed. If the tot
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Answer:

Width 150 meters.

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Step-by-step explanation:

Let us assume the  width of  the fence = k meters

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⇒ A(k)  = (600 - 2k) (k)

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The above equation is of the form: ax² +bx +  C

Here: a  = - 2 , b = 600 and C = 0

As a< 0, the parabola opens DOWNWARDS.

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Solving for the value of k similarly, we get:

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Thus the desired width = k = 150 meters

So, the desired dimensions of the plot  is width 150 meters.

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5 0
3 years ago
The scatterplot shows the number of free throws that different basketball players attempted and the number that each player made
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Katyanochek1 [597]

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In the division problem, 0.08 ÷ 2 = 0.04, is 0.08 <br> quotient dividend divisor <br> Choose...
cupoosta [38]

Answer:

Dividen

Step-by-step explanation:

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3 years ago
How do you simplify 9/8?
Mademuasel [1]

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Step-by-step explanation:

divide 9 and 8 and u get ur answer Hoped I helped im Eve btw. Have a great day and consider marking this brainliest if you do thank you in advanced!

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