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Verdich [7]
3 years ago
10

Find the sum of the first 39 terms of the following series, to the nearest integer 7,15,23,...

Mathematics
1 answer:
sertanlavr [38]3 years ago
4 0

Answer:

6201

Step-by-step explanation:

formula for series in AP

where n is the nth term and a is first term and d is difference between two terms in series sum = \frac{n}{2} (2a \:  + (n - 1)d)

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Answer:

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Step-by-step explanation:

3 0
3 years ago
Determine the number of possible outcomes when tossing one coin ,two coins ,and three coins then determine the number of possibl
m_a_m_a [10]

Number of possible outcome for tossing N coins = 2^N

Solution:

Possible outcomes when tossing one coin = {H, T}

Number of possible outcomes when tossing one coin = 2 =2^1

Possible outcomes when tossing two coins = {HH, HT, TH, TT}

Number of possible outcomes when tossing two coins = 4 =2^2

Possible outcomes when tossing three coins

                                 = {HHH, HHT, HTH, THH, TTH, THT, HTT, TTT}

Number of possible outcomes when tossing three coins = 8 =2^3

Therefore, the sequence obtained is 2^1, 2^2, 2^3.

If continue this sequence, we can obtain number of possible outcome for tossing N coins is 2^N.

7 0
3 years ago
How would you factor this 2x^3 + x^2 + 5x + 6. The factored form should not have any radicals or imaginary numbers.
Serhud [2]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Please help!!!<br><br> 3(x – 10) = -9
sergey [27]

Answer:

The answer is x = 7

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
Let a and b be natural numbers for which a divides<br> b. then a is less than or equal to b
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