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2 years ago

9

Evaluate.

2 answers:

VikaD [51]2 years ago

7 0

Hey! First we have to solve what's in parentheses. We can use the PEMDAS method too. P = parentheses E = exponents M = multiplication D = division A= addition S = subtraction. We also solve left to right. So starting off with what's in the parentheses, 64/8, that equals 8. So now the equation is 53-8+102.

Now is 53 - 8, which is 45. Now we just add 102 and 45. Your final answer would be 147! Hope this helped.

lana66690 [7]2 years ago

4 0

53-(64:8)+102=53-8+102=147

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Sergio039 [100]

Answer:

$\left[\begin{array}{cccc}1&0&1&|-1\\-3&-9&3&|27\\3&2&0&|-2\end{array}\right]$

Step-by-step explanation:

Given [Missing from the question]

$\left[\begin{array}{cccc}1&0&1&|-1\\1&3&-1&|-9\\3&2&0&|-2\end{array}\right]$

Required

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This implies that, we form a new matrix where the second row of the new matrix is a product of -3 and the second row of the previous matrix.

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$Initial =\left[\begin{array}{cccc}1&0&1&|-1\\1&3&-1&|-9\\3&2&0&|-2\end{array}\right]$

$New =\left[\begin{array}{cccc}1&0&1&|-1\\-3*1&-3*3&-3*-1&|-3*-9\\3&2&0&|-2\end{array}\right]$

$New =\left[\begin{array}{cccc}1&0&1&|-1\\-3&-9&3&|27\\3&2&0&|-2\end{array}\right]$

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2 years ago

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