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Elanso [62]
2 years ago
13

If the equation of a circle is (x + 4)2 + (y - 6)2 = 25, its center point is

Mathematics
2 answers:
Tom [10]2 years ago
5 0
        (x - h)² + (y - k)² = 25
(x - (-4))² + (y + (-6))² = 25
      (x + 4)² + (y - 6)² = 25

(h, k) = (-4, 6)

The answer is B.
Kobotan [32]2 years ago
5 0

Answer:

center of the circle is (-4,6)

Second option is correct.

Step-by-step explanation:

The given equation of circle is (x+4)^2+(y-6)^2=25

The general form of a circle is given by the equation

(x-h)^2+(y-k)^2=r^2

Here (h,k) is the center and r is the radius.

On comparing the equation with this general form, we get

h = -4, k = 6

Therefore, the center of the circle is (-4,6)

Second option is correct.

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there are 6 people in a raffle drawing. two raffle winners each wing gift cards . each gift card is the same. how many ways are
Morgarella [4.7K]

Answer:

The combination is 15

Step-by-step explanation:

There are 6 people in a raffle drawing. two raffle winners each wing gift cards . each gift card is the same.

Lets call the winners Winner 1, Winner 2. According to the given statement each gift card is same, thus any permutation of these two winners are  equivalent.This tells us that the order of winners does not matter and the situation involves a combination.

Now we have to calculate the combination of 2 winners from 6 people.

nCm = m!/n!(m-n)!

where m = 6

n = 2

2C6 = 6!/2!(6-2)!

2C6 = 6!/2!(4)!

2C6 = 6*5*4*3*2*1/2*1*4*3*2*1

2C6= 6*5/2*1

2C6=30/2

2C6 = 15

Thus the combination is 15....

3 0
3 years ago
Find the equation 3(x +5)+(3x +5)<br><br>​
Katarina [22]

Answer:

=6x+20

Step-by-step explanation:

3(x+5)+(3x+5)

Solution:

=3x+15+3x+5

=6x+20

5 0
2 years ago
PLEASE HELP QUICK!!!
Brilliant_brown [7]

Answer:

Step-by-step explanation:

I am not sure

5 0
3 years ago
Click to see the picture how do i do this!
crimeas [40]

Answer:

Look at the pic

Step-by-step explanation:

I hope I did it right...I haven't touched this topic a long time

8 0
3 years ago
PLZ HELP ME <br> I appreciate any help, especially if you can show me how you got the answer
Arte-miy333 [17]

Answer:

C

Step-by-step explanation:

Since this is an indererminate form, use L'Hopital

d(sint)/dt = cos(t)

d[ln(2e^t) - 1] = (2e^t)/[2e^t - 1]

As t --> 0,

cos(0) = 1

(2e^t)/[2e^t - 1] = 2

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5 0
3 years ago
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