I need an answer to this perplexing math problem! 6-8 (8+27)=?

Mathematics

2 answers:

zhenek [66]3 years ago

4 0

Answer:

-274

Step-by-step explanation:

Dmitry [639]3 years ago

3 0

Answer:

-274

Step-by-step explanation:

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Consider the quadratic function that has x-intercepts of –1 and –7 and passes through the point (–2, –20). What is the value of

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3 years ago

To my knowledge, the answer should be there is no difference since I found the sum, however the answer is something else,

olga nikolaevna [1]

In the first series, the summation applies to the whole (2n+3) inside
the parentheses, so the 3 gets summed up 5 times.

But in the second one, the summation only applies to the 2n , so
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The difference between five 3s the first time and one 3 the second time
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Read 2 more answers

solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. x-2y+

Alekssandra [29.7K]

Answer:

x = -5, y = -6, z = -3

Step-by-step explanation:

Given the system of three equations:

$\left\{\begin{array}{l}x-2y+3z=-2\\6x+2y+2z=-48\\x+4y+3z=-38\end{array}\right.$

Write the augmented matrix for the system of equations

$\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)$

Find the reduced row-echelon form of the augmented matrix for the system of equations:

$\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)\sim \left(\begin{array}{ccccc}1&-2&3&|&-2\\0&-14&16&|&36\\0&-6&0&|&36\end{array}\right)\sim \left(\begin{array}{ccccc}1&3&-2&|&-2\\0&16&-14&|&36\\0&0&-6&|&36\end{array}\right)$