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Hunter-Best [27]
3 years ago
13

Solve the inequality for x: 25 - 14x < 53*

Mathematics
1 answer:
Mamont248 [21]3 years ago
5 0

Answer:

x must be greater than -53/14

(im not 100% sure but i think this is correct)

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If -xy – 5+ y^2+ x^2= 0 and it is known that dy/dx= y-2x/-x+2y, find all
sleet_krkn [62]

Answer:

There is no point of the form (-1, y) on the curve where the tangent is horizontal

Step-by-step explanation:

Notice that when x = - 1. then dy/dx becomes:

dy/dx= (y+2) / (2y+1)

therefore, to request that the tangent is horizontal we ask for the y values that make dy/dx equal to ZERO:

0 = ( y + 2) / (2 y + 1)

And we obtain y = -2 as the answer.

But if we try the point (-1, -2) in the original equation, we find that it DOESN'T belong to the curve because it doesn't satisfy the equation as shown below:

(-1)^2 + (-2)^2 - (-1)*(-2) - 5 = 1 + 4 + 2 - 5 = 2  (instead of zero)

Then, we conclude that there is no horizontal tangent to the curve for x = -1.

3 0
3 years ago
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slavikrds [6]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Find the mean? Read question rest is done.
Ulleksa [173]

Answer:

I believe its 8

Step-by-step explanation:

9 + 10 + 13 + 2 +6 = 40 / 5 = 8

6 0
3 years ago
Martin has a business washing cars. Last year he washed 20 cars a week. This year, he wants to increase his business to 1,200 ca
IgorC [24]

Great Question!

The last year part is extra information. 1200÷12 (months in a year)= 100

He will have to wash 100 cars each month.

8 0
3 years ago
A player plays a game in which, during each round, he has a probability 0.55 of winning $1 and probability 0.45 of losing $1. Th
Artemon [7]

Answer:

45

Step-by-step explanation:

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3 years ago
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