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irina [24]
3 years ago
14

Select the explicit formula for the sequence that correspond to this geometric series: 6 + 18 + 54 + 162 + 486

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
5 0

Answer: ak=6•3k-1

Step-by-step explanation:

timama [110]3 years ago
3 0

Answer:

1) A

2) B

3) 726

Step-by-step explanation:

just did this :))

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Mohammad divide Rs 82000 into two parts such that the amounts at 5% per annum compound interest in 2 years and 3 years are equal
lara [203]

Answer:

Rs 42000 and Rs 40000

Step-by-step explanation:

Given that Rs 82000 is divided into two parts.

Let the first part be Rs x which is compounded annually at the interest of 5% per annum for 2 years.

The rate of interest = 5%=0.05

The total amount after 2 years = x(1+0.05)^{2}\cdots(i)

The other part is Rs 82000-x which is compounded annually at the interest of 5% per annum for 3 years.

The total amount after 3 years = (82000-x)(1+0.05)^{3}\cdots(ii)

As both the amounts are equal, so from equation (i) and (ii)

x(1+0.05)^{2}=(82000-x)(1+0.05)^{3} \\\\x(1.05)^{2}=82000(1.05)^{3} -x(1.05)^{3} \\\\x(1.05^2+1.05^3)=82000\times 1.05^3 \\\\x(2.260125)=94925.25 \\\\x=94925.25/2.260125 \\\\

x= 42000

And the other part = 82000-42000 = Rs 40000

Hence, he divides the money as

Rs 42000 at 5% per annum compound interest in 2 years and

Rs 40000 at 5% per annum compound interest in 3 years.

4 0
3 years ago
Yo can someone help please
Mama L [17]

Answer: 5/3

One of the side lengths goes from 3 to 5. So, the scale factor is 5/3.

Hope that helped!

:)

7 0
3 years ago
PLEASE ANSWER ASAP !!!!
Radda [10]

Answer:

The awnser is 7/4!!!!!!!!

3 0
3 years ago
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GEOMETRY HELP PLS! 50 POINTS!!
icang [17]

Answer:

the answer is c

Step-by-step explanation:

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3 years ago
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Solve the equation. Check your answer.<br> 8=t -8.5
Kay [80]

Answer:

t= 16.5

Step-by-step explanation:

See the steps below:)

6 0
3 years ago
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