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cluponka [151]
2 years ago
11

How do I solve this out??

Mathematics
1 answer:
GuDViN [60]2 years ago
7 0
<h3>Answer:</h3>

(x, y) = (7, -5)

<h3>Step-by-step explanation:</h3>

It generally works well to follow directions.

The matrix of coefficients is ...

\left[\begin{array}{cc}2&4\\-5&3\end{array}\right]

Its inverse is the transpose of the cofactor matrix, divided by the determinant. That is ...

\dfrac{1}{26}\left[\begin{array}{ccc}3&-4\\5&2\end{array}\right]

So the solution is the product of this and the vector of constants [-6, -50]. That product is ...

... x = (3·(-6) +(-4)(-50))/26 = 7

... y = (5·(-6) +2·(-50))/26 = -5

The solution using inverse matrices is ...

... (x, y) = (7, -5)

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3 years ago
To find the height of the peak, list the corresponding sides and angles of the two triangles you and Tyler have created. (6 poin
sukhopar [10]
We know that

Right triangles PBM and MTF are similar 
because
angle PMB=angle TMF
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7 0
3 years ago
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3 0
3 years ago
A recipe uses 2 cups of flour to make 18 cupcakes. How much flour is needed to make 27 cupcakes?
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Answer:

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Step-by-step explanation:

we can solve this by setting up ratios

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