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3 years ago

9

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The measure of angl

e 0 is 7pie/6 the measure of its reference angle is __ degree and sin 0 is __ .

2 answers:

Marta_Voda [28]3 years ago

7 0

Your answer is 71626

kompoz [17]3 years ago

5 0

The answer should be 71626

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200 points if you help me? 24 hours is equal to one ____ of the Earth

Trava [24]

Answer:

rotation

Step-by-step explanation:

because the earth rotates

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2 years ago

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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

$\alpha+\alpha^2+4=16$

Or, equivalently

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

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Keeping the positive solution, as required:

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3 years ago

Jenny is making a quilt from the pattern blocks shown below.

denis23 [38]

Answer:

A

Step-by-step explanation:

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2 years ago

Pls answer just the answer

Viefleur [7K]

Answer:

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Step-by-step explanation:

if i am wrong pls tell me cause i think there's a different answer gl g

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2 years ago

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Aloiza [94]

6 (x+3)=12x-12

6x+18=12x-12

6x-12x=-18-12

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x=5

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3 years ago