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miss Akunina [59]
2 years ago
8

The equation below describes a circle. what are the coordinates of the circle?

Mathematics
2 answers:
balu736 [363]2 years ago
6 0

Answer:

center = (-5, -7)

radius = 21

Step-by-step explanation:

<u>Equation of a circle</u>

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

where:

  • (a, b) is the center
  • r is the radius

Given equation:

(x+5)^2 + (y+7)^2 = 21^2

Comparing the given equation with the standard equation of a circle:

  • center = (-5, -7)
  • radius = 21
Softa [21]2 years ago
4 0
Coordinates: (-5,-7)
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Help me please I have to have this done in 5 minutes
Nonamiya [84]

Answer:

F (-1,5)

Step-by-step explanation:

Since the problem gives you the graph, all you have to do is see which point falls in the shaded part. F is the answer since J is on the line. If the equality was less than or equal, then it would be F and J.

4 0
3 years ago
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How would I solve a problem like this?
Verizon [17]
(85 + 75) * t = 448
160t = 448
t = 448/160
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4 0
2 years ago
Evaluate the expression. P(9, 3) · P(5, 4)
boyakko [2]

Answer:

P(9,3) *P(5,4)

And if we use the permutation formula given by:

nPx = \frac{n!}{(n-x)!}

And replacing we got:

\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520

Step-by-step explanation:

For this problem we want to find the following expressionÑ

P(9,3) *P(5,4)

And if we use the permutation formula given by:

nPx = \frac{n!}{(n-x)!}

And replacing we got:

\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520

6 0
3 years ago
Solve the equation by completing the square 5x(x+6)=-50
motikmotik
First lets distribute the 5x 
5x^2 + 30x = -50

Lets divide every term by 5 
x^2 + 6x = -10 

To complete the square we have to half the b value, which in this case is 6. Then square it. 
Half of 6 is 3, 3 squared is 9 

Add that to both sides of the equation 
x^2 + 6x + 9 = -1 

Find the binomial squared
(x+3)^2 (If you're wondering how i got that please comment) 

(x+3)^2 = -1 

Take the square root of the equation of both sides
(x+3) = +/- i
x = -3 +/- i
x = -3 - i
and 
x = -3 + i


3 0
2 years ago
Rodger bowled seven games last week. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the median of Rodger's score?
Damm [24]

Answer

The median is 155

Step-by-step explanation:

You get the numbers from least to greatest then the middle number is your median.

3 0
3 years ago
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