3 years ago

The x-coordinates of a point that lies on the y-axis is positive.

Mathematics

1 answer:

lbvjy [14]3 years ago

4 0

Answer:

This is never true.

the x-coordinates of a point that lies on the y-axis is 0.

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The family of functions y = ce^{-2x} + e^{-x} is solution of the equation y' + 2y = e^{-x}. Find the constant c which defines th

Rufina [12.5K]

Answer:

$c = 1190.2$

Step-by-step explanation:

We have the following solution:

$y(x) = ce^{-2x} + e^{-x}$

We want to find the value of x that satisfies the following condition:

y(3) = 3.

This means that when x = 3, y = 3. So

$y(x) = ce^{-2x} + e^{-x}$

$y(3) = ce^{-2*3} + e^{-3}$

$3 = ce^{-6} + e^{-3}$

$3 = ce^{-6} + 0.0498$

$ce^{-6} = 2.9502$

$c = \frac{2.9502}{e^{-6}}$

$c = 1190.2$

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2 years ago

Rachel earns $42,000 per year. Find how much she would make if she was paid weekly, semimonthly, and monthly.

Delicious77 [7]

Answer:

in a monthly shy much $3500

in a weekly she much $807.69

Step-by-step explanation:

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2 years ago

Read 2 more answers

Please answer quick!!

rewona [7]

Answer: B

Step-by-step explanation:

$\frac{2}{7k}(k-7)$

$\frac{2k-14}{7k}$

$\frac{2k}{7k}-\frac{14}{7k}$

$\frac{2}{7}-\frac{2}{k}$

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2 years ago

Tarana mailed 20 greetings cards. 9 of them were mailed to USA. What percentage of the cards were mailed to USA?

Elza [17]

Answer:

45%

Step-by-step explanation:

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3 years ago

What is the value of m that makes the equation true? 18m- 2+ 7m- 8= -60

sergij07 [2.7K]

Answer:

m = -2

Step-by-step explanation:

First, let's move all variables to one side of the equation. (Don't forget to change the signs when you move the numbers to the other side.)

18m + 7m = -60 + 2 + 8

Now we simplify to get this:

25m = -50

Now we divide -50 by 25 which gets us -2.

Therefore, m = -2

Hope this helps!

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3 years ago