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andreyandreev [35.5K]
1 year ago
7

Is (3,6) a solution of y's 3x + 4?

Mathematics
1 answer:
notka56 [123]1 year ago
3 0

Step 1:

(3,6) means x coordinate is 3 and y coordinate 6

Step 2:

We substitute the values of x = 3 and y = 6 into the inequality

\begin{gathered} y\text{ }\leq\text{ }\frac{2}{3}\text{ }x\text{ + 4} \\ 6\text{ }\leq\text{ }\frac{2}{3}\text{ x }\frac{3}{1}\text{  + 4} \\ 6\text{ }\leq\text{ 2 + 4} \\ 6\text{ }\leq\text{ 6} \end{gathered}

Conclusion:

Since 6 is equal to 6, then (3,6) is a solution of the given Inequality

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If u-ai + bj and v-ci + dj are vectors, then which of the following statements is not true?
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Answer:

Option C

Step-by-step explanation:

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We have dot product

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The dot product of u and v is a scalar is true because dot product is always a scalar

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True because we multiply corresponding i components and j components and add.

So only C is not true.

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3 years ago
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