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tino4ka555 [31]
2 years ago
10

Determine from the following(choice one or choice two) mapping is a Function. Choice One Choice Two 3 1 0 2 3 2 -1 3 2 3 -2 0 Ex

plain why?​
Mathematics
1 answer:
saul85 [17]2 years ago
4 0

Answer:

3 is a function because it is repeating and 2 is reapting to

Step-by-step explanation:

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What is the answer to 3c=-21?
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First, you need to get the variable by itself.
Divide three by both side.
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The graph shows the data points in the table and the exponential regression model associated with the data ?
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From the graph, it is obvious that the trend is decreasing from 100 on day 2, to 1 on day 10. So, the answer could either be A or C. The question would be how fast is it decreasing? To illustrate this, let's find the difference of consecutive data:

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3 years ago
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Explain how you know that 0.38 is a rational number?
dangina [55]

Answer:

0.38 is a rational number because it can be expressed as fraction, and it isn't a repeating decimal.

Step-by-step explanation:

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3 years ago
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Let u = (1, 2 -2), v= (2, 1, 3) and w = j + 4k. a) Find cos theta, where theta is the angle in degrees between u and w.
vodka [1.7K]

Answer: The value of cos theta is -0.352.

Step-by-step explanation:

Since we have given that

\vec{u}=1\hat{i}+2\hat{j}-2\hat{k}\and\\\\\vec{w}=\hat{j}+4\hat{k}

We need to find the cos theta between u and w.

As we know the formula for angle between two vectors.

\cos\ \theta=\dfrac{\vec{u}.\vec{w}}{\mid u\mid \mid w\mid}

So, it becomes,

\cos \theta=\dfrac{2-8}{\sqrt{1^2+2^2+(-2)^2}\sqrt{1^2+4^2}}\\\\\cos \theta=\dfrac{-6}{\sqrt{17}\sqrt{17}}=\dfrac{-6}{17}=-0.352\\\\\theta=\cos^{-1}(\dfrac{-6}{17})=110.66^\circ

Hence, the value of cos theta is -0.352.

8 0
3 years ago
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