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Katarina [22]
4 years ago
13

Find the general solution of the differential equation. (Use C for any needed constant.) dy dx = 1 − y

Mathematics
1 answer:
daser333 [38]4 years ago
4 0

Answer:

Step-by-step explanation:

Give the DE

dy/dx = 1-y

Using variable separable method

dy = (1-y)dx

dx = dy/(1-y)

Integrate both sides

 ∫dx =  ∫dy/(1-y)

 ∫dy/(1-y)=  ∫dx

-ln(1-y) = x+C

ln(1-y)^-1 = x+C

Apply e to both sides

e^ln(1-y)^-1 = e^,(x+C)

(1-y)^-1 = Ce^x

1/(1-y) = Ce^x

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aksik [14]
-2x + 5y = 8
2x + 2y = 6
----------------add
7y = 14
y = 14/7
y = 2

2x + 2y = 6
2x + 2(2) = 6
2x + 4 = 6
2x = 6 - 4
2x = 2
x = 2/2
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solution is (1,2)
4 0
3 years ago
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If f(x)f(x) is an exponential function where f(-1)=5f(−1)=5 and f(7)=32f(7)=32, then find the value of f(4)f(4), to the nearest
Whitepunk [10]

Using an exponential function, it is found that the value of the function when x = 4 is of f(4) = 15.95.

<h3>What is an exponential function?</h3>

It is modeled by:

y = ab^x

In which:

  • a is the initial value.
  • b is the rate of change, as a decimal.

In this problem, we have that f(-1)=5, hence:

5 = ab^{-1}

\frac{a}{b} = 5

a = 5b

We also have that f(7)=32, hence:

32 = ab^7

Since a = 5b:

5b^8 = 32

b = \sqrt[8]{\frac{32}{5}}

b = 1.2612.

a = 5b = 5 x 1.2612 = 6.306.

Hence the function is given by:

y = 6.306(1.2612)^x

Then, when x = 4, we have that:

y = 6.306(1.2612)^4 = 15.95

More can be learned about exponential functions at brainly.com/question/25537936

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5 0
2 years ago
Determine whether 2/3 and 16/24 are equivalent ratios. choose yes or no
Phoenix [80]

Answer:

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Step-by-step explanation:

Divide the second numerator by the first numerator

Divide the second denominator by the first denominator

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6 0
3 years ago
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Your answer is 0. The slope formula is m = (y2 - y1) / (x2 - x1). So you do 8-0=8. Then you do 0-6=-6 Then you get 8 over -6. Simplified: -one and one third. That is the answer!

8 0
3 years ago
On a scale drawing of a community garden, 1 inch equals 50 feet. The actual dimensions of the community garden are 175 feet by 2
g100num [7]
175/50 by 250/50 =  3.5"X5"
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