3 years ago

HELPPP I NEED THIS NOW

Mathematics

1 answer:

NikAS [45]3 years ago

4 0

It’s D

Hope you all have a good day

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Suppose y = 48 + 3(2n - 1) is an explicit representation of an arithmetic sequence for integer values n ≥ 1. Find the xth partia

omeli [17]

$a_n=48+3(2n-1)$

The formula of the sum of the arithmetic sequence:
$S_n=\dfrac{a_1+a__n}{2}\cdot n$
calculate:
$a_1=48+3(2\cdot1-1)=48+3=51$
substitute
$S_n=\dfrac{51+48+3(2n-1)}{2}\cdot n=\dfrac{99+6n-3}{2}\cdot n=\dfrac{96+6n}{2}\cdot n=3n^2+48n$
Your answer is:
$\boxed{f(x)=3x^2+48x}$

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Cheeseburgers to go has advertised for counter help. If you take the job, you will be working 18 hours a week for $75.20 per wee

julsineya [31]

Divide the weekly amount by the number of hours worked:

75.20 / 18 = 4.177

Rounded to the nearest cent = $4.18 per hour.

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The ratio 3:8 12:32 omg do not like this comon core math