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Marizza181 [45]
2 years ago
7

In a school auditorium, the number of chairs in a row is the same as the number of rows of chairs. If there are 529 chairs in th

e auditorium, then how many chairs are there in each row?
Mathematics
1 answer:
BartSMP [9]2 years ago
8 0

Answer:

23!

Step-by-step explanation:

529/23= 23

23 chairs and 23 rows

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Which best describes the graphs of the line that passes through (−12, 15) and (4, −5), and the line that passes through (−8, −9)
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C) They are perpendicular lines.

Step-by-step explanation:

We first need to find the slope of the graph of the lines passing through these points using:

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The slope of the line going through (−8, −9) and (16, 21) is

m_{2} =  \frac{21 -  - 9}{16 -  - 8}

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The product of the two slopes is

m_{1} \times m_{2} =  -  \frac{4}{5}  \times  \frac{5}{4}  =  - 1

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m_{1} \times m_{2} =  - 1

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