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2 years ago

6.6=w-1.2 What is w??

Mathematics

2 answers:

8_murik_8 [283]2 years ago

5 0

Answer:

w=7.8

Step-by-step explanation:

DanielleElmas [232]2 years ago

5 0

Answer: 7.8

Step-by-step explanation:

1.2+6.6=7.8 so,

7.8-1.2=6.6

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Which statements are true about x? Select three options.<br> Oxe Buc<br> XeBNC<br> XEAUC<br> Oxe Anc

umka21 [38]

Answer:

The required answer is :

Oxe Buc

XeBNC

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3 years ago

Use the method of undetermined coefficients to find the general solution to the de y′′−3y′ 2y=ex e2x e−x

djverab [1.8K]

I'll assume the ODE is

$y'' - 3y' + 2y = e^x + e^{2x} + e^{-x}$

Solve the homogeneous ODE,

$y'' - 3y' + 2y = 0$

The characteristic equation

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consider the ansatz particular solution

$y = axe^x \implies y' = a(x+1) e^x \implies y'' = a(x+2) e^x$

Substituting this into (1) gives

$a(x+2) e^x - 3 a (x+1) e^x + 2ax e^x = e^x \implies a = -1$

For the nonhomogeneous ODE (2),

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take the ansatz

$y = bxe^{2x} \implies y' = b(2x+1) e^{2x} \implies y'' = b(4x+4) e^{2x}$

Substitute (2) into the ODE to get

$b(4x+4) e^{2x} - 3b(2x+1)e^{2x} + 2bxe^{2x} = e^{2x} \implies b=1$

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$y'' - 3y' + 2y = e^{-x}$

take the ansatz

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Then the general solution to the ODE is

$\boxed{y = C_1 e^x + C_2 e^{2x} - xe^x + xe^{2x} + \dfrac16 e^{-x}}$

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1 year ago

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solong [7]

Answer:

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Step-by-step explanation:

10 has 1 zero. 1000 has 3 zeros. Put these zeroes together to get 0000. Add one to the left, and you get 10000.

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2 years ago

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irina1246 [14]

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lakkis [162]

Answer:

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