3 years ago

How many times greater is the value of 83 than the value 0.083?

Mathematics

1 answer:

Inessa [10]3 years ago

5 0

1000 times greater (1K)

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for v= 4i - 5j, find unit vector u in the direction of v, and write your answer as a linear combination of the standard unit vec

umka21 [38]

Answer:

a. $u=\frac{4\sqrt{41}i }{41}-\frac{5\sqrt{41}j}{41}$

Step-by-step explanation:

The given vector is v= 4i - 5j

The magnitude of this vector is;

$|v|=\sqrt{(-4)^2+(-5)^2}$

$|v|=\sqrt{16+25}$

$|v|=\sqrt{41}$

The unit vector u in the direction of v is;

$u=\frac{v}{|v|}$

$u=\frac{4i - 5j}{\sqrt{41}}$

$u=\frac{4i }{\sqrt{41}}-\frac{5j}{\sqrt{41}}$

We rationalize to get

$u=\frac{4\sqrt{41}i }{41}-\frac{5\sqrt{41}j}{41}$

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3 years ago

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brilliants [131]

Answer:

Step-by-step explanation:

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2 years ago

50 points for two lucky people your welcome ;)

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The length of the hypotenuse of a 30°-60°-90° triangle is 16. What is the perimeter?

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Answer:

-126

Step-by-step explanation:

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