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RUDIKE [14]
3 years ago
13

Arithmetic series help!!!!

Mathematics
1 answer:
jekas [21]3 years ago
4 0

The initial term of the sequence is 15. The common difference is 3, so the n-th term (an) is

... an = 15 + 3(n-1)

For n=14, the 14th term of the sequence is

... a14 = 15 + 3(14 -1) = 54

The sum of terms is the average of the first and last, multiplied by the number of terms:

... sum = (15 + 54)/2·14 = 7·69 = 483

The appropriate answer choice is

... 54; 483

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Solve for x.<br> x = [?]<br> 4x - 2<br> 3x + 14
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Answer:

X = 7

Step-by-step explanation:

I really don’t know

6 0
3 years ago
20×(5×(-16) ) = (20×5)×(-16)​
stich3 [128]

Answer:

20×(5×(-16) = (20×5)×(-16)​

Step-by-step explanation:

They both equal -1600

7 0
3 years ago
Read 2 more answers
Pleaseee answer quickly
just olya [345]

Answer:

4.  3 units

5. Triangle  

6.  (0,2)

Step-by-step explanation:

4. The distance between the x axis and the point (8,3) is 3 units

5. Triangle  will be formed if the points A(-3, 0), B (0,3) and C (3,0) are joined together

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7 0
2 years ago
Convert 5280 vodas to pivos. Show three significant figures for your answer.
Finger [1]

(5280 vodas) * (1/2.71828 moloko/voda) * (1/3.1416 pivo/moloko) ≈ 618 pivos

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8 0
3 years ago
Dane is investing $150,000 for 30 years at an annually compounded rate of 5.5%. What is the difference between his ending accoun
navik [9.2K]
<span>Total = Principal × ( 1 + Rate )<span>^years
</span></span><span>Total = 150,000 * (1.055) ^ 30
</span>Total = 150,000 * <span> <span> <span> 4.9839512884
</span></span></span>Total = <span> <span> <span> 747,592.69</span></span></span>

<span>Total = 150,000 * (1.065) ^ 30
</span><span><span><span>Total = 150,000 * 6.614366163 </span> </span> </span>
<span>Total = 992,154.92</span>

Difference = 992,154.92 -<span>747,592.69 =
</span><span>244,562.23 </span>

Source:
http://www.1728.org/compint.htm
online interest calculator



7 0
3 years ago
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