Find the magnitude of the vector from the origin to (-7, -5) and write the vector as the sum of unit vectors.

Mathematics

1 answer:

Agata [3.3K]3 years ago

7 0

The answer is b okkkkkk

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How do you do this problem

Ainat [17]

So the problem has no symbols, but we're going to multiply because the fraction on the left is right next to the parentheses.

-5/2 * 1/10x = -5x/20

I put "x" next to the 5 because the "x" counts as part of the numerator. Now that it's 5x over 20 that equals one, I'd first reduce -5x/20 into -x/4, then do

-x/4 * -4 = 1 * -4

To make the "x" side equal one, we have to multiply both sides by -4, to make both sides equal.

x = -4.

4 0

3 years ago

Please answer these questions! will mark brainlist!

timofeeve [1]

1st photo....

Yes

Explanation

All when divided becomes 1/3 , so it is proportional...

Pls mark brainliest

2nd photo....

Yes

Explaination

Also when divided becomes 1/3... Same proportional

7 0

2 years ago

Read 2 more answers

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valentinak56 [21]

Step-by-step explanation:

$\huge \: 2 \sqrt{x} .4 {x}^{ - \frac{5}{2} } \\ \\ \huge \: = 2.4 {x}^{ \frac{1}{2} } . {x}^{ - \frac{5}{2} } \\ \\ \huge \: = 8 {x}^{ \frac{1}{2} - \frac{5}{2} } \\ \\ \huge \: = 8 {x}^{ \frac{1 - 5}{2} } \\ \\ \huge \: = 8 {x}^{ - \frac{4}{2} } \\ \\ \huge \: = 8. {x}^{ - 2} \\$