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3 years ago

Someone help please need help urgent. Asap please check. I know for sure it’s not C. But just please help

Mathematics

1 answer:

ELEN [110]3 years ago

5 0

Answer:

D. 2 = 2

Step-by-step explanation:

Whenever you try to solve an equation and you just end up with a number = a number that means there is an infinite number of solutions.

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Find the measure of angle 1 and 2 pls

Flura [38]

Answer:

Your answer is

1. 42.5

2. 95

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3 years ago

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Marianna [84]

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cody spent 3 hours and 5 minutes looking for his missing cat if he finally found it at 7:35 what time was it when he originally

Ket [755]

Answer:

4:30

Explanation:

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2 years ago

Find+the+positive+value+for+α+if+the+radius+of+the+circle+3x^2+3y-6αx+12y-3α=0+is+4

Alik [6]

Answer:

$\alpha=3$

Step-by-step explanation:

<u>Equation of a Circle</u>

A circle of radius r and centered on the point (h,k) can be expressed by the equation

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

We are given the equation of a circle as

$3x^2+3y^2-6\alpha x+12y-3\alpha=0$

Note we have corrected it by adding the square to the y. Simplify by 3

$x^2+y^2-2\alpha x+4y-\alpha=0$

Complete squares and rearrange:

$x^2-2\alpha x+y^2+4y=\alpha$

$x^2-2\alpha x+\alpha^2+y^2+4y+4=\alpha+\alpha^2+4$

$(x-\alpha)^2+(y+2)^2=r^2$

We can see that, if r=4, then

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Or, equivalently

$\alpha^2+\alpha-12=0$

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Keeping the positive solution, as required:

$\boxed{\alpha=3}$

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3 years ago

What is the value of 9^-1/2

qaws [65]

Answer:

81-1/2

80/2

40 and right than say

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3 years ago

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