Mathematics: What is the sum of the arithmetic series 18 t=1 (3t-4) a. 234 b. 441 c. 25.5 d. 49

What is the sum of the arithmetic series 18 t=1

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kimho2324

15.03.2022

Mathematics

The given arithmetic series is

$\sum_{t=1}^{18} (3t-4)$

When t =1, we will get the first term,a, which is

3(1)-4 =3-4=-1

When t =18, we will get the last term,l , which is

3(18)-4 = 50

Now we use the formula of sum of n terms which is

$S = \frac{t}{2} (a+l)$

Substituting the values of t,a and l, we will get

$S = \frac{18}{2} (-1+50) = 9*49 =441$

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Ответ:

mariasoledad1

18.02.2020

Mathematics

This graph will have a vertex point of (5,1). Find points (3,7) and (7,7). These two points will be the outline of your slope. Hope this helps in some way

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What is the sum of the arithmetic series 18 t=1 (3t-4) a. 234 b. 441 c. 25.5 d. 49

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