2 years ago

IVE BEEN STUCK ON THIS FOR ABOUT 3 HOURS

1 answer:

3 0

A. Is the attached image. The slope is 7.5x

b. 1 = 7.5x

x = 1.33333…

This is hours so we must multiply this by 60

x = 8 min

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What is the radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0?

s344n2d4d5 [400]

Answer:

2 units

Step-by-step explanation:

The given equation of the circle is:

$x^{2} + y^{2}+8x-6y+21=0$

The general equation of the circle is:

$x^{2} + y^{2}+2gx+2fy+c=0$

Comparing the given equation with the general equation we can say:

g = 4

f = -3

c = 21

The formula for radius of the circle is:

$radius=\sqrt{g^{2} +f^{2} -c }$

Using these values of the given circle, we get:

$radius=\sqrt{(4)^{2}+(-3)^{2}-21}\\\\radius=\sqrt{4}\\\\radius=2$

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3 years ago

What does y equal in 30+6y=7(y+6)-5

kirill [66]

Answer:

y=-37

Step-by-step explanation:

0+6y=7(y+6)-5

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6y=7y+37

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3 years ago

How to solve burger barn has 46 2/3 pounds of ground beef. how many 1/3 pound burgers can be made using all the ground beef?

8_murik_8 [283]

(46 2/3) / (1/3) =
(140/3) / (1/3) =
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3 years ago