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galben [10]
3 years ago
10

What is the center of the circle (x+7)^2+(y+4)^2=25

Mathematics
1 answer:
jonny [76]3 years ago
6 0

9514 1404 393

Answer:

  (-7, -4)

Step-by-step explanation:

Compare the given equation to the standard form equation for a circle with center (h, k) and radius r.

  (x -h)^2 +(y -k)^2 = r^2

You see that ...

  -h = +7   ⇒   h = -7

  -k = +4   ⇒   k = -4

Then the center is ...

  (h, k) = (-7, -4)

__

The radius is ...

  r^2 = 25   ⇒   r = √25 = 5 . . . radius of the circle

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A television had a regular price of 1400. It was on sale with a 30 discount. How much is the discount on the television
lilavasa [31]

Answer:

$420.

Step-by-step explanation:

What is 30% off 1400 Dollars. The easiest way of calculating discount is, in this case, to multiply the normal price $1400 by 30 then divide it by one hundred. So, the discount is equal to $420.

6 0
3 years ago
Evaluate 7m + 3mn when m=8 and n=14
Murrr4er [49]

Answer:

392

Step-by-step explanation:

7(8) + 3(8)(14)

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*Brackets mean to multiply.

3 0
3 years ago
A, B & C lie on a straight line.
Liono4ka [1.6K]

Answer:

x = 129°

Step-by-step explanation:

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y + ∠ DBC = 180°

107° + ∠ DBC = 180° ( subtract 107° from both sides )

∠ DBC = 73°

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles , then

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8 0
2 years ago
Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 + 2x +1?
raketka [301]
While the vertex of the function f(x) = x^2 is (0, 0), the vertex of the function g(x) = x^2 + 2x + 1 is (-1, 0).
Whereas both function has same y-cordinate, their x-coordinate are different which indicates that the function g(x) = x^2 + 2x + 1 is a horizontal translation of the function f(x) = x^2.
4 0
3 years ago
Read 2 more answers
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Answer:

90m+145

Step-by-step explanation:

80 + 50m + 65 + 40m​

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3 years ago
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