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1 year ago

Please help!

Mathematics

2 answers:

ss7ja [257]1 year ago

8 0

Answer:

4 is the answer

Bess [88]1 year ago

3 0

Answer:

4 is the answer I believe

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Determine the equation of the circle graphed below. ( please help me )

Brums [2.3K]

Answer:

$Equation : \\(x+3)^2 + ( y -2)^2 = 36$

Step-by-step explanation:

For standard form the circle's equation we need the centre of the circle and the radius.

Step 1: Find the centre

If the centre is not given find the end points of the diameter

and then find the mid point.

Let the end points of the diameter be : ( - 3 , 8 ) and ( -3 , -4 )

The mid-point of the diameter is :

$Mid-point = (\frac{-3 + - 3}{2}, \frac{-4+8}{2}) = (-3, 2)$

Therefore, centre of the circle = ( -3 , 2 )

Step 2 : Find radius

$Radius = \frac{Diameter }{2}$

Diameter is the distance between the end points ( -3 , 8) and ( -3 , -4 )

That is ,

$Diameter = \sqrt{(-3-(-3))^2 + ( -4 -8)^2}\\$

$= \sqrt{(-3 + 3)^2 + (-12)^2}\\\\=\sqrt{0 + 144}\\\\=12$

Therefore ,

$Radius = \frac{12}{2} = 6$

Step 3 : Equation of the circle

Standard equation of the circle with centre ( h ,k )

and radius ,r is :

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

Therefore, the equation of the circle with centre ( -3, 2)

and radius = 6 is :

$(x - (-3))^2 + (y - 2)^2 = 6^2\\\\(x + 3)^2 + (y - 2)^2 = 36$

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2 years ago

What is the lowest common multiple of 8 and 12?

8090 [49]

Answer:24

Step-by-step explanation:Least common multiple (LCM) of 8 and 12 is 24.

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2 years ago

Write the inequality that represents the sentence, "Four less than a number is greater than 58."

puteri [66]

Answer:

n-4>58

Step-by-step explanation:

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kumpel [21]

Answer:

Step-by-step explanation:

get the y alone on one side: 2y=8x-12

divide by two on both sides: y=4x-6

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Explain how two angles can be complementary angles.

weqwewe [10]

Two angles can be complementary angles add up to 90. So if you have a angle that is 30 and another one that is 60 those would be complementary because if you add them up they add up to 90.

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3 years ago