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Jobisdone [24]
3 years ago
5

Can you help me whith number two?

Mathematics
2 answers:
trapecia [35]3 years ago
7 0
The answer is C

Just divide by 100 and multiply by whatever the percent is in that case.

Hope this helps!
Otrada [13]3 years ago
5 0
14.47 is the closest to the answer. To get the answer use 72.34×.20 getting 14.468 or 14.47
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Another explanation is-

2/12 = 11/x

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Complete Question

The complete question is shown on the first uploaded

Answer:

y_1 is not a solution of the differential equation

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Step-by-step explanation:

The differential equation given is y'' + y' = cos2x

Let consider the first equation to substitute

y_1  = cosx  +sinx

y_1'  = -sinx  +cosx

y_1''  = -cosx -sinx

So

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y_1'' + y_1'  = -2sinx

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Let consider the second equation to substitute

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So

y_2'' + y_2'  = -4cos2x-2sin2x

So

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This means that y_2 is not a solution of the differential equation

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y_3 =  sin 2x

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So

y_3'' + y_3'  = -4sin2x  - 2cos2x

So

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This means  that  y_3 is not a solution of the differential equation

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3 years ago
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