Would you rather Put 3 dollars in the bank and have it triple each week for 4 weeks or put 4 dollars in the bank and have it quadruple each week for 3 weeks?

I'd rather use the second option that'd give me an amount of 256 by the end of the third week.

Step-by-step explanation:

In the first situation we have a initial amount of 3 dollars and it gets tripled every weeks for for weeks, so we have:

initial amount = 3

first week = 3*3 = 9

second week = 3*9 = 27

third week  =3*27 = 81

forth week = 3*81 = 243

In the second situation we have a initial amount of 4 dollars and get it quadruple each week for 3 weeks, so we have:

initial amount = 4

first week = 4*4 = 16

second week = 16*4 = 64

third week = 64*4 = 256

Another way of solving this is using geometric sequences. In these cases we have two sequences, the first one starts at 3 and a ratio of 3, while the second one starts at 4 and has a ratio of 4. We could use the formula for the nth term of a geometric seuqence that is:

a_n = a_1*[r^(n-1)]

On the first sequence we have a_1 = 3, r = 3 and n = 5 so we have:

a_5 = 3*[3^(5-1)] = 3*[3^4] = 3*81 = 243

On the second sequence we have a_1 = 4 r = 4 and n = 4 so we have:

a_4 = 4*[4^(4-1)] = 4*[4^3] = 4*64 = 256

I'd rather use the second option that'd give me an amount of 256 by the end of the third week.

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column