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tatyana61 [14]
3 years ago
6

The sum of the first 6 terms of a geometric sequence is 7, 812. the common ratio is 5. what is the second term of the sequence?

Mathematics
1 answer:
Snezhnost [94]3 years ago
4 0
OH right! I should have realised that!

S6 =  7,812 = a1 * (5^6 - 1)
                               -----------  were  a1 = first term
                                 5 -  1

3906*a1 = 7812
a1 = 7812 / 3906 =  2

Therfore the second term = 2*5  = 10 Answer
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2 years ago
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4 0
1 year ago
Write an exponential function in the form y=ab^x that goes through the point (0,17) and (6,1088)
alexandr402 [8]

Answer:

y = 17(2)^x

Step-by-step explanation:

If the graph of y = ab^x goes through (0, 17), then

                        17 = ab*0, or a = 17

Then the function is y = ab^x with a = 17, or

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y = 17(2)^x

6 0
3 years ago
The cost for Andrea to produce several units of a certain item is $336 plus $12 per unit. She sells this item for $28 per unit.
Morgarella [4.7K]
Profit will be achieved when the money earned is greater than the money spent so,
336 + (n*12) = n*28  any subsequent units sold would result in profit
336 = 28n - 12n
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3 years ago
3x+8 if x=2 <br> 15 <br> 13<br> 16<br> 14
grandymaker [24]

Answer:

14

Step-by-step explanation:

3*2+8

=14

6 0
3 years ago
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