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GrogVix [38]
3 years ago
9

3 over 14 equals x over 42

Mathematics
1 answer:
Eva8 [605]3 years ago
4 0

Answer:

9

Step-by-step explanation:

   3

3    x

   =

14   42

   3

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Answer:

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Step-by-step explanation:

2x-3=3x-7

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Add 7 to both sides of the equation to isolate x

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3. (6 Points). Solve the initial value problem y'-y.cosx=0, y(pi/2)=2e
Stells [14]

Answer:

y=2e^{sin(x)}

Step-by-step explanation:

Given equation can be  re written as

\frac{\mathrm{d} y}{\mathrm{d} x}-ycos(x)=0\\\frac{\mathrm{d} y}{\mathrm{d} x}=ycos(x)\\\\=> \frac{dy}{y}=cox(x)dx\\\\Integrating  \\ \int \frac{dy}{y}=\int cos(x)dx \\\\ln(y)=sin(x)+c............(i)

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Applying value in (i) we get

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=> ln(2) + ln(e) = 1+c

=> ln(2) + 1 = 1 + c

=> c = ln(2)

Thus equation (i) becomes

ln(y) = sin(x) + ln(2)

ln(y) - ln(2) = sin(x)

ln(y/2) = sin(x)

y= 2e^{sinx}

7 0
3 years ago
Alaina colors 20% of the total shapes on her paper. She colors 10 shapes. Enter the number of shapes on Alaina's paper.
Mashutka [201]

Answer:

50

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3 0
4 years ago
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