3 years ago

I'll mark brainiest if right answer

Mathematics

1 answer:

igomit [66]3 years ago

3 0

Answer: x=2 y=18

Step-by-step explanation

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What is the diameter of a circle with the equation x2 + y2 - 8x + 2y - 8 = 0?

bazaltina [42]

Answer:

Diameter is 10 units

Step-by-step explanation:

<u>Convert standard form to general form by completing the square:</u>

$x^2+y^2-8x+2y-8=0$

$x^2-8x+y^2+2y-8=0$

$x^2-8x+y^2+2y=8$

$x^2-8x+16+y^2+2y+1=8+16+1$

$(x-4)^2+(y+1)^2=25$

$(x-4)^2+(y+1)^2=5^2$

So, since the radius of the circle is 5 units, then the diameter is twice the radius, which is 10 units.

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iren2701 [21]

Answer:

16 x 3? I'm not sure I understand sorry.

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3 years ago

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Slope is –2, and (5, 3) is on the line.<br> To be put into slope intercept form

Anvisha [2.4K]

i wish that i could help you but I just dont understand it... I am sorry

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A Ship travels at a steady Speed.

SpyIntel [72]

Answer:

speed=24km/h or 6.67m/s

Step-by-step explanation:

Given data:

time taken = t =43 hours

distance covered = d = 1032 km

to find:

speed of the ship = v =?

solution:

as we know that speed is defined as the distance covered by an object in unit time.Formula

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Yuki888 [10]

Answer: It dropped 55%

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