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EleoNora [17]
3 years ago
9

Jill is playing cards with her friend when she draws a card from a

Mathematics
1 answer:
AVprozaik [17]3 years ago
8 0
3 of 20
1 2 3 <u>4</u> 5 6 7 8 <u>9</u> 10 11 12 13 14 15 <u>16</u> 17 18 19 20
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If Dave runs 1.8 kilometers in the 15 minutes, what is his average rate
sladkih [1.3K]

Answer:

.12 km/min.

Step-by-step explanation:

1.8 kilometers / 15 minutes = .12 kilometers per minute

3 0
3 years ago
Which equation represents the line that contains the point (-2, 9) and is perpendicular to the line y = 2x + 6?
olganol [36]
Y=-1/2x+8

perpendicular means slope is opposite reciprocal so it would be -1/2

y=-1/2x+b
Plug in points and solve for b
B=8
7 0
3 years ago
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Simplify please <br> (n^11)^2
Citrus2011 [14]

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n^22 (I love your profile picture by the way)

Step-by-step explanation:

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What is the angle of rotation about the center that will map the regular pentagon onto itself
BlackZzzverrR [31]

Answer:

I think c 430 and if it is wrong I'm so sorry

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3 years ago
Can you help me? Please
Anni [7]

9514 1404 393

Answer:

  a.

Step-by-step explanation:

For an even-index radical, ...

  \sqrt[n]{x^n}=|x|\qquad\text{n even}

This lets us simplify the given expression as follows:

  \sqrt[4]{81x^6y^4}-|y|\sqrt[4]{x^6}-\sqrt[4]{16x^2}=\sqrt[4]{(3xy)^4x^2}-|y|\sqrt[4]{x^4x^2}-\sqrt[4]{2^4x^2}\\\\=3|xy|\sqrt[4]{x^2}-|xy|\sqrt[4]{x^2}-2\sqrt[4]{x^2}=\boxed{2|xy|\sqrt[4]{x^2}-2\sqrt[4]{x^2}}

4 0
3 years ago
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