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pshichka [43]
3 years ago
7

What is the product? (2x-1)(x+4)

Mathematics
1 answer:
Semenov [28]3 years ago
6 0
3x - 1 + 6x - 1 =
9x - 2
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Given: y" - 2y' = 6t + 5e^2t. Find the correct form to use for y_p if the equation is solved using Undetermined coefficients. Do
const2013 [10]

Answer:

y_p=A+Bt+Ce^{2t}

Step-by-step explanation:

Given: y'' - 2y' = 6t + 5e^{2t}.

we need to find the correct form for y_p if the equation is solve using undetermined coefficients.

A first order differential equation \frac{\mathrm{d} y}{\mathrm{d} x}=f\left ( x,y \right ) is said to be homogeneous if f(tx,ty)=f(x,y) for all t.

Consider homogeneous equation y''-2y'=0

Let y=e^{rt} be the solution .

We get (r^2-2r)e^{rt}=0

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As constant term and e^{2t} are already in the R.H.S of equation

y" - 2y' = 6t + 5e^{2t}, we can take y_p as y_p=A+Bt+Ce^{2t}

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3 years ago
Which is the correct classification of Sqrt of 18 ?
LenKa [72]
The square root of 18 is 4.24
8 0
3 years ago
Two friends argue over who brushes their teeth more often. Who is more likely to brush both morning and evening? Assume all even
dolphi86 [110]

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d

Step-by-step explanation:

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ANYBODY WHO ANSWERS THIS WILL GET 60 POINTS. Male and female high school students reported how many hours they worked each week
Alexxandr [17]
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The outlier will make the box plot be uneven and this will affect the spread and the center.

I know isn't A, because if anything that would make it more balanced.
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I know it isn't C because the question is not asking you to determine the spread and center, just to see if there is anything that would affect them.

I hope this helps!
3 0
3 years ago
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Which expression has a negative value? 7+3(-4)(2) -2[12/(-3)] (15-7)-(9/3) -5[7+(-14)]-30
denis23 [38]

Answer:

7+3(-4)(2) -2[12/(-3)] (15-7)-(9/3) -5[7+(-14)]-30= 49

Step-by-step explanation:


4 0
3 years ago
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