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Helen [10]
2 years ago
9

Match the following guess solutions yp for the method of undetermined coefficients with the second-order nonhomogeneous linear e

quations below. A. yp(x)=Ax2+Bx+C, B. yp(x)=Ae2x, C. yp(x)=Acos2x+Bsin2x, D. yp(x)=(Ax+B)cos2x+(Cx+D)sin2x E. yp(x)=Axe2x, and F. yp(x)=e3x(Acos2x+Bsin2x)
Mathematics
1 answer:
qaws [65]2 years ago
8 0

Answer:

Step-by-step explanation:

For each of the yp(x) we can deduce the characteristic polynomial of the differential equation

A.

yp(x)=Ax^2+Bx+C\\m^2=0\\y''=0

B.

yp(x)=Ae^{2x}\\(m-2)m=0\\m^2-2m=0\\y''-2y=0

C.

yp(x)=Acos2x+Bsin2x\\m_1=2i\\m_2=-2i\\y''+4=0

D.

yp(x)=(Ax+B)cos2x+(Cx+D)sin2x\\yp(x)=xcos4x

hope this helps!!

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What does 5x evaluate to if x is equal to 2?
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Answer: Hi!

Since 5 is being multiplied by x, and x is equal to 2, be would multiply 5 and 2. 5 * 2 is equal to 10.

Hope this helps!

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2 years ago
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Based on a​ poll, 67​% of Internet users are more careful about personal information when using a public​ Wi-Fi hotspot. What is
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Answer:

The required probability is 0.988.

Step-by-step explanation:

Consider the provided information.

Based on a​ poll, 67​% of Internet users are more careful about personal information when using a public​ Wi-Fi hotspot.

That means the probability of more careful is 0.67

The probability of not careful is: 1-0.67 = 0.33

We have selected four random Internet​ users. we need to find the probability that at least one is more careful about personal information.

P(At least one careful) = 1 - P(None of them careful)

P(At least one careful) = 1 - (0.33×0.33×0.33×0.33)

P(At least one careful) = 1 - 0.012

P(At least one careful) = 0.988

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3 0
2 years ago
Consider the following formula used to estimate height, h, of a seedling after w weeks since planting:
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Answer:

Option B. w=5h-8

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5h=w+8

subtract 8 both sides

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4 0
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Can u solve this pls easy? A geologist takes samples of two rocks from a mountainside. The gray rock has a volume 25% higher tha
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Text me back for an answer.

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Answer:

∠N and ∠Y

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