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iragen [17]
3 years ago
15

Find the center and the radius of the circle defined by the equation x^2-8x+y+12y+36=0

Mathematics
1 answer:
choli [55]3 years ago
3 0
Hello,
center is (4,-6)
radius=4
since
x^2-8x+y^2+12y+36=0\\

x^2-2*4x+16-16+y^2+2*6y+36=0\\

(x-4)^2+(y+6)^2=4^2




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A = 10, b = 24, c = _____
Arlecino [84]

Answer:

c=26

Step-by-step explanation:

By using pythagoram thoerem

c^2=a^2+b^2

c^2=(10)^2+(24)^2

c^2=100+576

c^2=676

c=sqrt(676)

c=26

c=26

3 0
3 years ago
Each cone of the hourglass has a height of 12 millimeters. The total height of the sand within the top portion of the hourglass
Harman [31]

The solution would be like this for this specific problem:

Volume of a cylinder = pi * r^2 * h 

Volume of a cone = 1/3 * pi * r^2 * h 

Total Height = 47

Height of the cone = 12

Height of the cylinder = 35

If the top half is filled with sand, then:

volume (sand) = pi * 4^2 * 36

volume (cone) =  1/3 * pi * 4^2 * 12

Total volume = 1960.353816 cubic millimeters

353816 / (10 * pi) = 62.4 seconds.

It will take 62.4 seconds until all of the sand has dripped to the bottom of the hourglass.

7 0
3 years ago
Find this quotient. <br> -36.86 <br> ______<br> -3.8 <br> The quotient is:
VMariaS [17]

Answer:

9.7

Step-by-step explanation:

First convert the numbers into whole numbers by multiplying both numbers by 100. Then divide the numbers by using long division.

8 0
3 years ago
Which equations are in standard form? Check all that apply
kompoz [17]

The standard form of a line: Ax + By = C where A, B and C are integers.

Answer:

2x + 3y = -6

-4x + 3y = 12

x - y = 5


7 0
3 years ago
Jace gathered the data in the table. He found the approximate line of best fit to be y = –0.7x + 2.36.
finlep [7]

Answer:

the answer is:

-0.86

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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