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Rus_ich [418]
3 years ago
10

__(_+_)=18 what number will give 18

Mathematics
1 answer:
MatroZZZ [7]3 years ago
5 0
3(3+3)=18
Because 3+3=6 and multiply six by three equals eighteen
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Does the set {t, t Int} form a fundamental set of solutions for t^2y" -- ty' +y = 0?
Ivanshal [37]

Answer:

yes

Step-by-step explanation:

We are given that a Cauchy Euler's equation

t^2y''-ty'+y=0 where t is not equal to zero

We are given that two solutions of given Cauchy Euler's equation are t,t ln t

We have to find  the solutions are independent or dependent.

To find  the solutions are independent or dependent we use wronskain

w(x)=\begin{vmatrix}y_1&y_2\\y'_1&y'_2\end{vmatrix}

If wrosnkian is not equal to zero then solutions are dependent and if wronskian is zero then the set of solution is independent.

Let y_1=t,y_2=t ln t

y'_1=1,y'_2=lnt+1

w(x)=\begin{vmatrix}t&t lnt\\1&lnt+1\end{vmatrix}

w(x)=t(lnt+1)-tlnt=tlnt+t-tlnt=t where t is not equal to zero.

Hence,the wronskian  is not equal to zero .Therefore, the set of solutions is independent.

Hence, the set {t , tln t} form a fundamental set of solutions for given equation.

6 0
3 years ago
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Aliun [14]

Answer:

y = -3x-1

Step-by-step explanation:

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5 0
3 years ago
Y = 4x + 13<br> is this a function
VMariaS [17]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Use a scale of 2km to 1cm to find the length of a road
noname [10]
<h2>First Question:</h2><h3>Given: </h3>

2 km = 1 cm

<h3>To Find:</h3>

The length of the road of 15 km.

<h3>Solution:</h3>

2 km = 1 cm

1 km = 1/2 = 0.5 cm

15 km = 0.5 × 15 = 7.5

<h2>Answer: </h2>

The length of the road is <u>7.5 cm</u>.

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8 0
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Dovator [93]
I think it’s h=64m because it just makes sense the most
4 0
2 years ago
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