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3 years ago

Please please please help if you can! Thank you!!

Mathematics

1 answer:

asambeis [7]3 years ago

8 0

Answer:

There are 16 rows of seats in the auditorium.

Step-by-step explanation:

Jose is correct in writing out 416 = 2x² - 6x.

Rewriting this in descending order by powers of x, we get:

2x² - 6x - 416 = 0

Dividing all four terms by 2 simplifies this equation to x² - 3x - 208 = 0. This equation, in turn, factors to (x + 13)(x - 16) = 0. The only reasonable answer is x = 16. Jose's solutions are incorrect.

There are 16 rows of seats in the auditorium.

The number of seats per row is 416/16, or 26.

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Step-by-step explanation:

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3 years ago

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4 years ago

If a geometric sequence has a2 = 495 and a6 = 311, approximate the value of the common ratio ???? to four decimal

shtirl [24]

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Step-by-step explanation:

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$a_n = ar^{n-1}$

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$a_2 = ar$ ...................(1)

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