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tester [92]
3 years ago
14

Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!

Mathematics
2 answers:
Stells [14]3 years ago
6 0

1. Find the explicit formula for 5, 9, 13, 17, 21, . . .

Answer: 4n + 1

Hope This helps :)

RoseWind [281]3 years ago
4 0

Answer by JKismyhusbandbae: a^n = 4n + 1

Arithmetic Formula: a^n=5+4\left(n-1\right)

Use the following formula to determine any number in an arithmetic sequence:


an = a1 + d (n – 1)

a1 = the first term.

d = common difference

n = term number

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Alright, here's one for Algebra:
Wewaii [24]
Let x= number rows
Then x + 5 = number of seats per row

x(x+5) = 126
X^2 + 5x = 126
x^2 + 5x -126 = 0; now factor or use quadratic:
(x+14)(x-9) = 0; so the answers are either -14, or 9, and since -14 is not possible in this case because you can't have a negative number of rows, the answer is 9 rows.

Check work: number of rows = 9, number of seats per row = 9+ 5= 14, and 9 x 14 = 126
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3 years ago
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Answer:

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yKpoI14uk [10]
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