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jekas [21]
3 years ago
8

The whole number m is a term in an arithmetic sequence with common difference 2. Show that the sum of the term m and the next tw

o terms is a multiple of 3, no matter what the value of m. ​
Mathematics
1 answer:
Igoryamba3 years ago
4 0

Answer:

S

ThenSn=n(a1+an)2Sn=n(a1 + an)2 , where nn is the number of terms, a1a1 is the first term and anan is the last term. The sum of the first nn terms of an arithmetic sequence is called an arithmetic series .

Step-by-step explanation:

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Find the volume! If you add step by step how to get, ill mark brainliest. (sorry if the pic is blurry).
s344n2d4d5 [400]

Answer:

124.71

Step-by-step explanation:

V=1 /4h√a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

a,b,c= base sides

h= height

V=1 /4(8)√(6)^4+2(6x6)^2+2(6x6)^2﹣(6)^4+2(6x6)^2﹣(6)^4

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7 0
3 years ago
Factorise fully 150-24d^2
solong [7]
Answer: 6(5 + 2d)(5 - 2d)


Explanation:

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7 0
3 years ago
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SashulF [63]

Answer:

D

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
What is 85% of 2500 meters
ladessa [460]
<span>2500*0.85=2125 meters</span>
4 0
3 years ago
Select the correct answer.
Viefleur [7K]

Answer:

0.85

Step-by-step explanation:

The given standard deviation of a population (σ) = 7.8

sample size (N) = 85

We have to find standard error of the mean.

The formula to find standard error of the mean

= (standard deviation of the distribution) / (square root of sample size)

= (σ) / (√N)

= 7.8 / (√85)

= 7.8 / 9.219544457

= 0.8460

= 0.85 (approximately taken to two decimal places)

We have got the required answer.

The standard error of the mean is 0.85.

3 0
4 years ago
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