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velikii [3]
4 years ago
5

Write a recursive process using sequence notation for the geometric sequence {3,9,27,81,...} that can be used to determine the n

ext term. a1 = 3; an = an − 1 + 3, n > 1 a1 = 3; an = an + 3, n > 1 a1 = 3; an = an − 1 ● 3, n > 1 a1 = 3; an = an − 2 + 3, n > 1
Mathematics
1 answer:
In-s [12.5K]4 years ago
4 0

We are given

geometric sequence

3,9,27,81,...

we can see that

first term is 3

so,

a_1=3

second term is 9

a_2=9

we can also write it as

a_2=3*3

we can replace 3 as a1

a_2=3a_1

Similarly , we have

third term is 27

a_3=27

we can also write it as

a_3=3*9

a_3=3a_2

so, for nth term

a_n=3a_n_-_1 for n>1.........Answer

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$9500 is invested part of it at 12% and part of it at 9%, for a certain year the total yield is $1032.00. How much was invest at
svet-max [94.6K]

so what i did was a long process but it worked i started by taking $5550 and multiplying it by .12 which gave me $666 then i did 9500-5550=3950 then i took 3950 and multiplied it by .09 and it gave me 355.5 then i added those together and got 1021.5 so i needed to increase the amount i invested at 12% to get a higher yield. i did this process a few more times and each time i increase the amount of money i invested at 12% by 25 dollars and i finally arrived at:

5900 x .12 = $708

9500-5900=3600

3600 x .09 =$324

708+324= $1032

so your answer is that you invested $5900 at 12% and $3600 at 9%.

add me as a friend if you like because i am generally good at math. hope this helped.

8 0
4 years ago
Sam has 16 pounds of cat food is going to separate it into 1/4 pound portions. How many portions of cat food will he have
Ksju [112]

Answer:

Sam will have 4 portions. In those 4 portion will be 4 pounds per portion because 16 divide 4 Is 4

7 0
3 years ago
Which system of equations is equivalent to the system of equations shown? 2x + 5y = -2 4x + 7y = 8 A) 6x - 12y = 6 and 4x - 10y
ankoles [38]
The correct anwerr is d
7 0
3 years ago
Help please...whats an explicit equation?
Vedmedyk [2.9K]
We represent a sequence with a formula that lets us find any term in the sequence without knowing any other terms, we are representing the sequence explicitly.
4 0
3 years ago
The sum of two numbers is odd. Can the quotient of the two numbers be an odd number?
Natalka [10]

Answer: No.

Step-by-step explanation:

I guess that here we have the statement:

If the sum of two numbers is odd----> can their quotient be an odd number?

first, for n an integer number, we have that:

an odd number can be written as 2n + 1

an even number can be written as 2n.

The sum of two numbers is only odd if one of them is odd and the other even.

Then we have a number that is 2n and other that is 2k + 1, for n and k integer numbers.

Now, let's see if the quotient can also be an odd number.

One way to think this is:

There is an odd number such that when we multiply it by another odd number, the result is an even number?

no, and i can prove it as:

let 2k + 1 be an odd number, and 2j + 1 other.

the product is:

(2k + 1)*(2j + 1) = 2*(2*k*j + k + j) + 1

and as k and j are integers, also does 2*k*j + k + j, so:

2*(2*k*j + k + j) + 1 is an odd number.

This says that the product of two odd numbers is always odd, then we never can have that the quotient between an even number and an odd number is odd.

4 0
3 years ago
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