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nalin [4]
3 years ago
6

Find the 3rd term of an arithmetic sequence with t5 = 3 and t7 = 7.

Mathematics
1 answer:
Usimov [2.4K]3 years ago
7 0
Tn=t1+d(n-1)
t5-t7=2d
7-3=4
2d=4
d=2

tn=t1+2(n-1)
t5=3
3=t1+2(5-1)
3=t1+2(4)
3=t1+8
minus 8
-5=t1

tn=-5+2(n-1)
t3=-5+2(3-1)
t3=-5+2(2)
t3=-5+4
t3=-1

3rd term is -1
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Answer:

a. percentage increase in price per share = 12%

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d.  The profit for the 600 shares is $2,484

Step-by-step explanation:

a. Initial price per share    =  $34.50

Current price per share = $38.64

Change or increase in price =  $38.64 - $34.50 = $4.14

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   The total purchase price for the 600 shares = ($34.5x600) = $20,700

c.  Total cost of 600 shares   =  ($34.5x600) = $20,700

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     Profit from the 600 shares = Total selling price - total cost price

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     Profit from the 600 shares = Total selling price - total cost price

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Answer:

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Answer is 6

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