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gayaneshka [121]

4 years ago

14

Derek invested 1,500 into an account that pays 9% intrest compounded monthly. How long must the money be left in the account for

it to grow 2,147.11?

1 answer:

Usimov [2.4K]4 years ago

4 0

4.79 Months, each month he gains 135 dollars so I subtracted the difference then divided by 135

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3^3*4^-2*4^-4=<br> A:3^-5*4^-6<br> B:3^5*4^6<br> C:3^5/4^6<br> D:12^2

Sergeeva-Olga [200]

Answer:

C

Step-by-step explanation:

Round the decimals.

5 0

3 years ago

$648 increased 2/3 itself equals what amount?

ladessa [460]

Answer:

1080

Step-by-step explanation:

648x2=1296÷3=432+648=1080

6 0

3 years ago

Read 2 more answers

What is a positive plus a negative

vichka [17]

Pos. + Neg. = Pos. if |Pos.| > |Neg.|

Example:

10 + (-9) = 1

|10| = 10 > |-9| = 9

Pos. + Neg. = Neg. if |Pos.| < |Neg.|

Example:

10 + (-11) = -1

|10| = 10 < |-11| = 11

Pos. + Neg. = 0 if |Pos.| = |Neg.|

Example:

10 + (-10) = 0

|10| = 10 = |-10|

Neg. + Pos. the same like Pos. + Neg.

5 0

3 years ago

A teacher gave her class two exams; 60% of the class passed the second exam, but only 48% of the class passed both exams. What p

zubka84 [21]

I think 80%

I also got stuck on it and searched it up I think its 80% but if I'm wrong I'm sorry

7 0

3 years ago

Read 2 more answers

What is the recursive formula for this geometric sequence?–2, –16, –128, –1024, ...

Tatiana [17]

Answer:

$b_n=-2\cdot 8^{n-1}$

Step-by-step explanation:

Denote first four terms of the geometrc sequence as

$b_1=-2,\\ \\b_2=-16,\\ \\b_3=-128,\\ \\b_4=-1024.$

Note that

$b_2=b_1\cdot q\Rightarrow -16=-2\cdot 8;\\ \\b_3=b_2\cdot q\Rightarrow -128=-16\cdot 8;\\ \\b_4=b_3\cdot q\Rightarrow -1024=-128\cdot 8.$

Then the common ratio is

$q=8.$

Therefore, the recursive formula for the geometric sequence is

$b_n=b_1\cdot q^{n-1}\Roghtarrow b_n=-2\cdot 8^{n-1}.$

5 0

3 years ago