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2 years ago

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Lin is making two pans of brownies. She lines the bottom of her first pan with aluminum foil. The area of the rectangular piece

of foil is 11 and 1/4 sq inches. Its length is 4 and 1/2 inches. What is the width of the piece of foil?

1 answer:

Gemiola [76]2 years ago

6 0

Answer: 2 1/2 inches

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Please help: linear algebra problem. (Linear combinations)

DochEvi [55]

Answer:

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This tells us that:

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Step-by-step explanation:

So we are saying we have scalars, c and d, such that:

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So we want to find a way to express this as:

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$\left[\begin{array}{ccc}5&7\\5&-8\\3&-9\end{array}\right] \left[\begin{array}{ccc}c\\d\end{array}\right] =\left[\begin{array}{ccc}-16\\3\\-15\end{array}\right]$

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Step-by-step explanation:

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