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2 years ago

Evaluate (-12)(-2) ^2

Mathematics

1 answer:

vazorg [7]2 years ago

7 0

Answer:

- 48

Step-by-step explanation:

by PEDMAS, we evaluate the exponent first before the multiplication

(-12)·(-2)²

= (-12)·(4)

= - 48

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2 years ago

Use a matrix to solve the system:

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now multiply the matrix with B

$X=A^{-1}B\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right]\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}2.83\\1\\4\end{array}\right] \\$

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2 years ago

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The answer would be 8746 ft :)

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2 years ago

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