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3 years ago

14

Katerina is making picture frames

2 answers:

jeka57 [31]3 years ago

8 0

Answer:

ok

Step-by-step explanation:

kykrilka [37]3 years ago

6 0

Rest of the question?

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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:
$\boxed{f(x)=3x^2+48x}$

5 0

3 years ago

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On-the-Go Phone Company has two monthly plans for their customers.The EZ Pay Plan costs $0.15 per minute. The 40 to Go Plan cost

natulia [17]

For one moth it would be....
$30 + 40 + 0.05$
$57.00 In total but im not sure if this is correct so if you could make sure please.

4 0

3 years ago

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Solve the system of equations by graphing or using a table <br> 3x+ y= 5 <br> x -y = 7

kobusy [5.1K]

Its supposed to be 3x+y=5 x-y=2

6 0

3 years ago

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Which series of transformations will not map figure Q onto itself? (x + 2, y − 2), reflection over y = x − 1 (x − 2, y + 2), ref

raketka [301]

b Step-by-step explanation:

this is super easy

7 0

2 years ago

What's the lcm for 18, 27, 12? I got 648. Am not sure if it is correct. Can you please explain if it is correct or not?

erik [133]

Answer:

Step-by-step explanation:

Put these numbers into their prime factors.

18: 2 * 3 * 3

27: 3 * 3 * 3

12: 2 * 2 * 3

The LCM must have

two 2s

Three 3s

That's it

2*2 * 3 * 3 * 3

LCM = 108

648 might be a multiple of the three, but it's not the smallest one.

108 = 27 * 4

108 = 18 * 6

108 = 12 * 9

6 0

2 years ago