3 years ago

Write down the output y in terms of x

Mathematics

1 answer:

atroni [7]3 years ago

6 0

Answer:

the x means 9

Step-by-step explanation:

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carol bought 8 identical boxes for a total of 3.60$. how much did each box cost? which statement would you use?

Tju [1.3M]

You just divide the 3.60 by the eight and then you get 45 cents for each box.

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3 years ago

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Find a such that the solution of y'' + y' − 2y = 0, y(0) = a, y' (0) = 1 tends to zero as t → +∞.

Kay [80]

Answer:

Step-by-step explanation:

$y'' + y' − 2y = 0, y(0) = a, y' (0) = 1$

Auxialary equation is

$m^2+m-2=0\\m=-2,1$

General solution is

$y=Ae^{-2x} +Be^x$

$y(0) = A+B =a$

$y'(0) = -2Ae^{2x} +Be^x = -2A+B = 1$

Eliminate B to get

3A =a-1

We know that y tends to 0 when x tends to infinity for any finite A

i.e. a should be a finite real number.

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3 years ago

PLEASE HELP ME I DONT UNDERSTAND!

Salsk061 [2.6K]

We know that

$\sf Slope=\dfrac{y_2-y_1}{x_2-x_1}$

Slope = -4 - 5/-2 - 1

Slope = -9/-3

Slope = 3/1

Slope = 3

Hence,

Slope is 3

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3 years ago

The hypotenuse of a right triangle is 7 inches,and one of the legs is 13 inches.Find the length of the other leg.

Firlakuza [10]

$13^{2} plus b^{2} =7^{2} 

169 plus b^{2} = 49
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3 years ago

The rainfall total this year was 10.2 inches, which is 20% less than last year's rainfall total. What was last year's rainfall t

antoniya [11.8K]

Answer: 12.75 inches

Step-by-step explanation:

Let x represent last year's rainfall.

Multiply by 0.8 since this year was 20% less.

x(0.8)= 10.2

x = 12.75

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3 years ago