1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
wlad13 [49]
3 years ago
11

A family raised $1000 for their initial investment. If they invest the money in an account that earns 5% interest compounded ann

ually, what will be the value of their investment at the end of 15 years?
The exponential function that expresses the amount of the investment as a function of time when compounded annually is: A(t)=P(1+r)^t

1. Evaluate function: A(15) =

2. Amount of interest earned in dollars:

3. Use the trace function to determine the value of the investment after 18 years.

4. Use the table function to determine how many years it will take for the investment to double.

5. How much more interest would be earned after 15 years if the interest rate were 5.5%?

If the investment is compounded more often than annually, the exponential function becomes ( ) (1 )nt r At P n = + , where n is the number of times the interest is compounded annually. Notice that if n = 1, the formula simplifies to the one used above.


6. If the family’s initial investment is the same with a 5% interest rate, but now it is compounded monthly, what is the value after 15 years of the investment?

7. How many years does it take the investment to double?

8. How much interest would be earned if the initial investment was $1,500 compounded monthly at the same 5% interest rate? How does this compare to the interest earned with the original $1,000 investment?
Mathematics
1 answer:
maksim [4K]3 years ago
6 0

Answer:

8 or 3

Step-by-step explanation:

You might be interested in
Four times a number +3 is the same as 5+ the number
yarga [219]

x=2/3

4x+3=5+x

4(2/3)+3=5+2/3

4 0
3 years ago
Read 2 more answers
What is the third quartile of this data set? *I NEED THE HELP ASAP* thx
diamong [38]

I think the answer is 44

7 0
3 years ago
A whale costs $14700 and depreciates in value by 8% per year. When will the whale be worth $100
sammy [17]

Answer:

x = 60

Step-by-step explanation:

The question is asking

$14,700 * (1 - 8%)^x = $100

$14,700 * (1 - 0.08)^x = $100

$14,700 * (0.92)^x = $100

(0.92)^x = $100/$14,700

log(0.92^x) = log($100/$14,700)

x * log(0.92) = log(0.0068027)

x = log(0.0068027)/log(0.92)

x = 59.85

Since this question is asking in terms of years, we always round up (in this case to 60), as it won't fully be worth $100 by the beginning of the 59th year.

3 0
3 years ago
Simply sixteen squared divided by four cubed
FinnZ [79.3K]
You mean "Simplify 16²÷4³?"
16²=16*16,  16= 4*4
4³=4*4*4
so:
Simplify: <u>16²</u>  = <u>16*16</u> =  <u>4*4*4*4</u> = <u>4</u> = 4
               4³  =  4*4*4 =    4*4*4     1
OR
256 ÷ 64 = 4
6 0
3 years ago
Read 2 more answers
I want a way to solve this question​
AURORKA [14]

Answer:

d

Step-by-step explanation:

Using the Cosine rule to find ∠ A

cosA = \frac{b^2+c^2-a^2}{2bc}

         = \frac{5.1^2+5.7^2-7.3^2}{2(5.1)(5.7)}

         = \frac{26.01+32.49-53.29}{58.14}

         = \frac{5.21}{58.14} , then

∠ A = cos^{-1} ( \frac{5.21}{58.14} ) ≈ 84.9° ( to 1 dec. place )

5 0
2 years ago
Other questions:
  • Find the value of x. Pweas
    14·2 answers
  • Answer all those 4 question
    13·1 answer
  • In four years time a mother will be three times as as old as her son. Four years ago she was five times as old as her son. Find
    11·1 answer
  • The population of a pack of wolves is 88. the population is expected to grow at a rate of 2.5% each year. what function equation
    5·2 answers
  • Juan delivers newspapers at a daily rate of $30. He also gets an extra $0.25 per newspaper delivered before 8 A.M. If Juan was p
    14·1 answer
  • Multiply. Use the greatest common factor to write each answer in<br> simplest form <br> 3/4 • 2/3
    6·1 answer
  • How to solve this problem and find the area
    14·1 answer
  • Amal and ji both rent out their food trucks. the table shows the amounts amal and ji charge per hour to rent their food truck wh
    6·1 answer
  • Don't you times by a thousand then times the answer<br> I got 60,000
    11·1 answer
  • A person invests 8000 dollars in a bank. The bank pays 4.75% interest compounded daily. To the nearest tenth of a year , how lon
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!