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mixas84 [53]
3 years ago
14

(13 points) asap!! please help!!!!

Mathematics
1 answer:
kenny6666 [7]3 years ago
6 0

Answer:

(-1,4)(1,4)

2

Step-by-step explanation:

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#2 Find the area.<br> 10ft
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Answer:

It would be 78.539...

Step-by-step explanation:

So the equation for area is π r^2. We don't have the radius but we have the diameter. Since the radius is always 1/2 of the diameter, simply divide 10/2 to get this.

Now with the radius, it can simply be plugged into the equation for the answer:

π r^2,

π 5^2,

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78.539...

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2 years ago
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Elena-2011 [213]

I think its B.) because if u count it all properly u would realize that they would all have to same numbers to match

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3 years ago
Rationalize the denominator of square root of negative 9 over open parentheses 4 minus 7 i close parentheses minus open parenthe
AlekseyPX
The answer is
\frac{-6i-3}{5}.

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\frac{\sqrt{-9}}{(4-7i)-(6-6i)}&#10;\\&#10;\\=\frac{\sqrt{9i^2}}{4-6-7i--6i}&#10;\\&#10;\\=\frac{3i}{-2-i}

To rationalize the denominator, we multiply by the conjugate.  The conjugate is found by making the imaginary term of the complex number, the i part, the opposite sign.  The conjugate of -2-i is -2+i:

\frac{3i}{-2-i}\times \frac{-2+i}{-2+i}&#10;\\&#10;\\=\frac{3i(-2+i)}{(-2-i)(-2+i)}&#10;\\&#10;\\=\frac{3i\times -2 + 3i\times i}{-2\times -2 + -2\times i + -2\times -i + -i\times i}&#10;\\&#10;\\=\frac{-6i+3i^2}{4-2i+2i-i^2}&#10;\\&#10;\\=\frac{-6i+3(-1)}{4-i^2}=\frac{-6i-3}{4-(-1)}=\frac{-6i-3}{5}
7 0
3 years ago
What rational number is between 2.46 and 2.47 on a number line
KonstantinChe [14]

I think the answer is 2.50

5 0
3 years ago
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PLEASE HELP ITS ALMOST DUE
taurus [48]

Answer:

we have"

\frac{q}{36}=\frac{16-q}{28}\\\\28q=36(16-q)\\\\28q=576-36q\\\\64q=576\\\\=>q=9

Step-by-step explanation:

6 0
3 years ago
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