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dmitriy555 [2]
3 years ago
15

A group of three digits separated by commas in a number is a

Mathematics
2 answers:
qwelly [4]3 years ago
6 0

The answer is a period.

Hope this helps

sashaice [31]3 years ago
6 0

It's called a period. Hope this helps! :)

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Find the sum of the first 47 terms of the following series, to the nearest integer.
Leokris [45]

Answer:

The sum of the first 47 terms of the series, 12, 16, 20, ... S₄₈ is 4,888

Step-by-step explanation:

The given series is;

12, 16, 20, ...,

Therefore, the first term of the series is, a = 12

The common difference of series is found as follows;

The difference between subsequent terms, 12 and 16 is  16 - 12 = 4

The difference between subsequent terms, 16, and 20 is  20 - 16 = 4

Therefore, the common difference, d = 4

The series is therefore an arithmetic projection, AP

The sum of the first 'n' terms of an AP, Sₙ, is given as follows;

S_n = \dfrac{n}{2} \cdot \left [2 \cdot a + (n - 1)\cdot d \right ]

(47/2)*(2*12+(47-1)*4)

The sum of the first 47 terms is therefore given as follows;

S_n = \dfrac{47}{2} \cdot \left [2 \times 12 + (47 - 1)\times 4 \right ] = 4,888

The sum of the first 47 terms of the series, 12, 16, 20, ... S₄₈ = 4,888

5 0
2 years ago
For each hour he babysits, Anderson earns $1 more than half of Carey’s hourly rate. Anderson earns $6 per hour. Which equation c
balu736 [363]
Carey earns c hourly
Anderson earns $6 hourly which is also 1+ c/2So, 6=1+c/2      12=2+cc=$10
Carey earns $10 hourly<span>
</span>
8 0
3 years ago
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The graph represents part of Brooke's trip to work. During what time period is her speed decreasing?
Dafna11 [192]

B. Between 20 and 25 minuets

Brooke's speed is decreasing between 20 and 25 minutes. According to the graph Brooke's speed is decreasing during that time period.

3 0
3 years ago
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K is no greater than 9?<br><br> Write&gt;,&lt;.
alekssr [168]
Greater than symbol is ">"
But since he mentioned "NO greater than" then it's the opposite of greater than, which means "K" is less than "9"

K<9
4 0
3 years ago
5/6 but if i mulsiply by 4 it gives me whole diff
miskamm [114]

Answer:

3.33 or 3 1/3

Step-by-step explanation:

You're correct to multiply by 4.

Your answer will be 10/3

Just make it a mixed number: 3 1/3

3.33 is 10/3 as a decimal.

4 0
2 years ago
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