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mr_godi [17]
3 years ago
13

Is this relation a function?

Mathematics
1 answer:
mr_godi [17]3 years ago
5 0

Answer:

Yes, this is a function

Step-by-step explanation:

ok

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Washington D.C is the capital of the US
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marysya [2.9K]

Answer:

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Step-by-step explanation:

The more negative a temperature is, the colder it is. In order, from colder to warmer, the temperatures are ...

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(b) Find the angle between u and v to the nearest degree.
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<u>Question 1 (b)</u>

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So,

\cos \theta=\frac{11}{\sqrt{10}\sqrt{17}}\\\\\theta=\cos^{-1} \left(\frac{11}{\sqrt{10}\sqrt{17}} \right) \approx \boxed{32^{\circ}}

<u>Question 2 (b)</u>

<u />u \cdot v=22\\\\|u|=\sqrt{5^{2}+2^{2}}=\sqrt{29}\\\\|v|=\sqrt{4^{2}+1^{2}}=\sqrt{17}

So,

\cos \theta=\frac{22}{\sqrt{29}\sqrt{17}}\\\\\theta=\cos^{-1} \left(\frac{22}{\sqrt{29}\sqrt{17}} \right) \approx \boxed{8^{\circ}}

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Explanation:

Let x be the unknown number.

Thus:

2x + (14 • 2) = 30
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which would be -1 2/7, but slope is not done in mixed fractions.
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