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tekilochka [14]
3 years ago
6

A $2,700 principal earns 5% interest, compounded annually. After 4 years, what is the balance in the account

Mathematics
1 answer:
natulia [17]3 years ago
7 0

Answer:

Step-by-step explanation:

67001

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Plz stop doing this not cool
Andrew [12]

Answer: So True

Step-by-step explanation:

4 0
3 years ago
A biologist recorded a count of 337 bacteria present in a culture after 5 minutes and 699 bacteria present after 15 minutes.
hoa [83]

The initial population was 234.

<em><u>Explanation</u></em>

<u>Formula for the exponential growth</u> is:   A= P*e^r^t , where P is the initial amount, A is the final amount, r is the rate of growth and  t  is the time duration.

There was 337 bacteria after 5 minutes and 699 bacteria after 15 minutes. So, the equations will be......

337=P*e^5^r .................................. (1)\\ \\ 699=P*e^1^5^r ................................. (2)

Now dividing equation (2) by equation (1) , we will get .......

\frac{699}{337}=\frac{e^1^5^r}{e^5^r} \\ \\ e^1^0^r = \frac{699}{337}

<u>Taking 'natural log'</u> on both sides.........

ln (e^1^0^r) = ln (\frac{699}{337})\\ \\ 10r= 0.7295....\\ \\ r= 0.07295.... \approx 0.073

Now, plugging this r=0.073 into equation (1), we will get......

337= P*e^5^(^0^.^0^7^3^)\\ \\ 337= P*1.4405 \\ \\ P= 233.946 \approx 234

So, the initial population was 234.

7 0
3 years ago
- 7x2 + 4x3 + 5 + 2x in standard form
Rudiy27

Answer:

150x + 2v + 5

5 0
4 years ago
Quadrilateral EFGH has coordinates E(a, 2a), F(3a, a), G(2a, 0), and H(0, 0). Find the midpoint of line HG
expeople1 [14]
Hope it helps!
#MissionExam001

6 0
3 years ago
Read 2 more answers
Help plz I don't understand and SHOW ME HOW YOU GOT IT!!!!!!!!
AysviL [449]
(48-7)x(56+19)
First of all you need to work out the brackets.
48-7=41
56+19=75
This turns the question to: 41x75
When multiply decimals you can split the numbers up into the tens and units.
40x70=2800
40x5=200
1x70=70
1x5=5
2800+200+70+5= 3075
This answer would be 3075.
6 0
3 years ago
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