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ser-zykov [4K]
3 years ago
5

Cuál es la suma de los primeros 30 términos de la sucesión 1,2,3,4​

Mathematics
1 answer:
Bezzdna [24]3 years ago
7 0

Answer:

465

Step-by-step explanation:

1 + 2 + 3 + ... + n = n(n + 1)/2

1 + 2 + 3 + ... + 30 = 30(31)/2 = 465

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Answer:

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Jane evaluates x squared minus 3 x + 5 for x = negative 2 below. Step 1: (negative 2) squared minus 3 (negative 2) + 5 Step 2: E
rjkz [21]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the question :

Jane evaluates x squared minus 3 x + 5 for x = negative 2 below. Step 1: (negative 2) squared minus 3 (negative 2) + 5 Step 2: Equals negative 4 + 6 + 5 Step 3: Equals 7 What, if any, was Jane's mistake?

Jane's evaluation :

x² - 3x + 5 for x = - 2

Step 1:

(-2)² - 3(-2) + 5

Step 2:

-4 + 6 + 5

Step 3 :

= 7

Jane's mistake was in STEP2,

evaluating (-2)² = 4 and not - 4

Hence, (-2)² - 3(-2) + 5

= 4 + 6 + 5

= 15

4 0
3 years ago
The average commute times for employees of a large company is 23 minutes.
Travka [436]

Answer:

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Step-by-step explanation:

I took the test and these were the answers.

4 0
3 years ago
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elixir [45]

Answer:

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Step-by-step explanation:

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6 0
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If 12x12=144<br><br> then whats 144x12= <br><br><br><br><br> r a n d o m
bearhunter [10]
144x12= 1728
 -----------------------------------
6 0
3 years ago
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