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neonofarm [45]
3 years ago
6

Explain why the expression 7•3x is not equal to the expression 21x

Mathematics
1 answer:
rusak2 [61]3 years ago
5 0
The expression 7•3x is not equal to the expression 21x. You might think that the two expressions are the same since 7x3 is 21 but the first expression is a dot product. This kind of expression includes the magnitude and direction of the vector in an expression, for example, <span>7•3x. The second expression, 21x, expresses only the magnitude and does not include the direction.</span>
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sveticcg [70]

Total area = 104+24 = 128 sq.in ,  Option C is the right answer.

The missing figure is attached with the answer.

<h3>What is Area ?</h3>

The space occupied by a two dimensional figure is called Area.

The figure given in the question can be divided into two figure

A rectangle of 8 * 13 inch

and a triangle of 8 * 6 inch

The area of a rectangle is given by

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The area of the triangle is given by

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Therefore Option C is the right answer.

To know more about Area

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6 0
1 year ago
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chubhunter [2.5K]
Hello there!

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Have a nice day!
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