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olganol [36]
3 years ago
6

A truck carries apples, grapes, and blackberries in the ratio of 4:3:4 if the apple weighs 160 pounds how much does the truckloa

d of fruit weigh in total
Mathematics
1 answer:
slega [8]3 years ago
3 0

Answer:

440

Step-by-step explanation

Idk exactly how to do it but hopfuly its right because it came from somone else give credit to him/her

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You find the eigenvalues of a matrix A by following these steps:

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  2. Compute the determinant of A'
  3. Set the determinant of A' equal to zero and solve for lambda.

So, in this case, we have

A = \left[\begin{array}{cc}1&-2\\-2&0\end{array}\right] \implies A'=\left[\begin{array}{cc}1&-2\\-2&0\end{array}\right]-\left[\begin{array}{cc}\lambda&0\\0&\lambda\end{array}\right]=\left[\begin{array}{cc}1-\lambda&-2\\-2&-\lambda\end{array}\right]

The determinant of this matrix is

\left|\begin{array}{cc}1-\lambda&-2\\-2&-\lambda\end{array}\right| = -\lambda(1-\lambda)-(-2)(-2) = \lambda^2-\lambda-4

Finally, we have

\lambda^2-\lambda-4=0 \iff \lambda = \dfrac{1\pm\sqrt{17}}{2}

So, the two eigenvalues are

\lambda_1 = \dfrac{1+\sqrt{17}}{2},\quad \lambda_2 = \dfrac{1-\sqrt{17}}{2}

5 0
2 years ago
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Find the area of the triangle ABC given angle A = 60°, b = 2, and c = √2.
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<span>If you know 2 sides and an included angle, the area formula is:
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<span>Area = ½ • side 1 • sine (A) • side 2
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<span>Area =sine (60) * sq root (2)
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Area = sq root (6) / 2

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5/6-1/9=?/?-?/? =13/18
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15/18 - 2/18 = 13/18

Find the least common multiple of 6 and 9. The LCM is 18. In order to get 18 on the denominator with 6, you have to multiply by 3 because 6 times 3 is 18. You have to multiply 3 to the numerator, so 5 times 3 is 15. Thus, the first fraction is 15/18. To get the second, you need to find what would get you 18 on the denominator with 9. You need 2, so 9 times 2 is 18. You have to multiply 2 to the numerator, so 1 times 2 is 2. Thus, the second fraction is 2/18.

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The solution set of 4x-(x+7)=2(x+3)​
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Step-by-step explanation:

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