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elena55 [62]
3 years ago
8

Which of the following equations will produce the graph shown below?

Mathematics
2 answers:
melisa1 [442]3 years ago
5 0
The graph is a circle, centered at the origin, with radius=4.

We know that we can write the equation of a circle with radius r and center (a,b) as :

                      (x-a)^2+(y-b)^2=r^2.

Thus, substituting (a, b) with (0, 0) and r with 4, we have:

                      x^2+y^2=16.

The solutions of this equation are all the points forming the circle shown in the picture. The solutions of this equation are still the same even if we multiply both sides of the equation by 2, because rewriting the equation as:

x^2+y^2=16\\\\x^2+y^2-16=0\\\\2(x^2+y^2-16)=0, 

we would still have the same roots.

Thus, the equation of the circle can be written as :

                                    2x^2+2y^2=32.


Answer: B

Gnesinka [82]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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Move the -5 over by adding 5 to both sides
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for an equation in the form
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a=3
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c=5

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x=\frac{-4+/- \sqrt{16-60} }{6}
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x=\frac{-4+/- 2i\sqrt{-11} }{6}
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4 0
3 years ago
Help me fast please!?!!?!?!
sladkih [1.3K]
The answer for the question is 31
5 0
3 years ago
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The Stock Market Nadia is a stockbroker. She earns 13% commission each week. Last week, she sold $5,300 worth of stocks. How muc
Natali [406]

Answer:

34

Step-by-step explanation:

5 0
2 years ago
PLS HELP!<br>0.99 is what percent of 9.90?
Leno4ka [110]

Answer:

10%

Step-by-step explanation:

first let's write out the problem

0.99 is what percent of 9.90     =        0.99=9.90*x

We need to   what c is so we would do the opposite operation of multiplication, division so we get,

0.99/9.90= .1

now we turn .1 into  percent and get out answer

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nikitadnepr [17]

Answer: Mr. Smith makes 14,400, Mr. Kelly makes 9,600

Step-by-step explanation: First add the ratio together. 3+2=5.

Then divide 24,000 into five parts, 24,000/5 = 4,800.

After getting 4,800, multiply 4,800 by 3 to get Mr. Smith's portion of the money received. 4,800 x 3 = 14,000.

And you can do the same for Mr. Kelly but use 2 instead of a 3.

4,800 x 2 = 9,600

To check your work you can add the two answers together

9,600 + 14,400 = 24,000.

7 0
2 years ago
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