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Elina [12.6K]
2 years ago
12

Who can help me with problem 2 you can earn 11 points

Mathematics
1 answer:
stealth61 [152]2 years ago
7 0

Answer:

m∠ADC = 90°

5x-5 = 90

x = 19

Step-by-step explanation:

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Vinvika [58]
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3 years ago
Select the correct answer.
alexgriva [62]

Answer:

D. 157

Step-by-step explanation:

4(x^2+3)-2y

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4(39)+1.     start with parentheses

156+1.        combine like terms

157.            answer

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2 years ago
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kompoz [17]

Answer:

questions 2 answe is x+3less than equal to 13

3 0
2 years ago
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
Circle O has a circumference of approximately 44 in. What is the approximate length of the diameter, d? inches
LenKa [72]
The distance around a rectangle or a square is as you might remember called the perimeter. The distance around a circle on the other hand is called the circumference. It is calculated as follows:

C = 2pi(r)

From this, we can solve for r and evetually solve for the diameter.

44 = 2pi(r)
r = 7.00
d = 2r
d = 14

Read more on Brainly - brainly.com/sf/question/2502148
3 0
2 years ago
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