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muminat
3 years ago
7

What is the determinant of the matrix [598−2]

Mathematics
1 answer:
mihalych1998 [28]3 years ago
5 0

Answer:

  -82

Step-by-step explanation:

Maybe you want the determinant of ...

  \left[\begin{array}{cc}5&9\\8&-2\end{array}\right]

The determinant of a 2×2 matrix is the difference of the products of elements on the down diagonal and the up diagonal:

  D = (5)(-2) -(8)(9) = -10 -72 = -82

The determinant of this matrix is -82.

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B is the midpoint of A . If AB = x+5 and BC =2x-11, find the measure of AB
nignag [31]

If B is the midpoint of AC, then AB = BC.

We have AB = x + 5 and BC = 2x - 11.

Therefore we have the equation:

x + 5 = 2x - 11       <em>subtract 5 from both sides</em>

x = 2x - 16       <em>subtract 2x from both sides</em>

-x = -16      <em>change the signs</em>

x = 16

Put the value of x to the expression x + 5:

AB = 16 + 5 = 21

<h3>Answer: AB = 21</h3>
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3 years ago
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Answer:

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3 years ago
Jackson runs a farm stand that sells bananas and grapes. Each pound of bananas sells for $1 and each pound of grapes sells for $
mars1129 [50]

Jackson sold 27 pounds of bananas and 12 pounds of grapes.

Given that Jackson runs a farm stand that sells bananas and grapes, and each pound of bananas sells for $ 1 and each pound of grapes sells for $ 2.25, and Jackson sold 15 more pounds of bananas than pounds of grapes and made $ 54 altogether, to determine the number of pounds of bananas sold and the number of pounds of grapes sold the following calculation must be performed:

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Therefore, Jackson sold 27 pounds of bananas and 12 pounds of grapes.

Learn more about quantities in brainly.com/question/25823155

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Step-by-step explanation:

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