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3 years ago

5

Question in picture.

2 answers:

Ber [7]3 years ago

4 0

The answers are to small to see.

Agata [3.3K]3 years ago

4 0

<h2>Answer:</h2>

<u>The correct choice is </u><u>C) 17.78 m/s</u>

<h2>Explanation:</h2>

According to the addition of vectors we add the magnitudes of vectors and the direction is seen in accordance to the resultanat vector. If the direction is same fro both vectors then simply the magnitude is added and direction remains the same. If the direction is opposite then the magnitude is subtracted. In the given two vectors the direction o f both the vectors is same so we simply add them as 12.57 + 5.21 = 17.78

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What is the value of x in the equation below 1+2e^x+1=9

GuDViN [60]

<h2>Answer: 1.252</h2>

Explanation:

We are given this equation and we need to find the value of $x$ :

$1+2e^x+1=9$ (1)

Firstly, we have to clear $x$ :

$2e^x=9-1-1$

$2e^x=7$

$e^x=\frac{7}{2}$ (2)

Applying<u> Natural Logarithm</u> on both sides of the equation (2):

$ln(e^x)=ln(\frac{7}{2})$ (3)

$xln(e)=ln(\frac{7}{2})$ (4)

According to the Natural Logarithm rules $xln(e)=x$ , so (4) can be written as:

$x=ln(\frac{7}{2})$ (5)

Finally:

$x=1.252$

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Harlamova29_29 [7]

Answer:

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