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lana [24]
3 years ago
13

What is the sum of the arithmetic series below?

Mathematics
1 answer:
Romashka [77]3 years ago
7 0
When we substitute the initial values of i, we find that the series is:
3, 5, 7, 9 ...
This means it is an arithmetic progression with the first term being 3 and the common difference being 2. We have to find the sum of the first 18 terms. Using the formula:

Sn = n/2[2a + (n - 1)d]
S₁₈ = 18/2[2(3) + (18 - 1)2]
S₁₈ = 360
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What experimental of rolling a 2 or 3
kondor19780726 [428]

Answer:

Option 1: 0.32

Step-by-step explanation:

Let

P(A) be the experimental probability of getting two

And

P(B) be the experimental probability of getting three

The dice is rolled 360 times.

So the sample space is n(S) = 360

P(A) = n(A)/n(S)

= 54/360

= 0.15

And

P(B) = n(B)/n(S)

= 62/360

= 0.172

As both the events A and B are mutually exclusive,

P(A or B)  = P(A) + P(B)

= 0.15 + 0.172

=0.322

Rounding of to one decimal gives us:

0.32

So the probability of rolling a two or three is 0.32 ..

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3 years ago
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Vlad [161]

Answer:huh

Step-by-step explanation:

4 0
3 years ago
What is another way to group the factors (3x2)x5
Elza [17]
3*(2*5)
You're Wlecome, 
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3 years ago
Help me please thanks
Svetach [21]
I think it's along the y-axis..... 
5 0
3 years ago
(b+3)1/2+b1/2=3<br> A. b=0 and b= 2/3<br> B. b=1/4 and b=2<br> C. b=1<br> D. b=3
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The answer is C Kay. Got it?
4 0
3 years ago
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