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
sergejj [24]
3 years ago
11

What does the interest rate have to be, if a bank pays interest, compounded continuously and the amount doubles in 5 years?

Mathematics
1 answer:
allochka39001 [22]3 years ago
3 0
Let the original amount be A.  Double that would be 2A.

Then, 2A = Ae^(r*5), or 2 = e^(5r).

Taking the natural log of both sides:  ln 2 = 5r.  Then r = (ln 2)/5 = 0.14

The interest rate would have to be 13.86% per year, written here as r=0.14.
You might be interested in
Help me please show your work!!
velikii [3]
The cheaper car service would be the second option, $10 upfront + $.05 per mile.

$4+$.70(12 miles)= $12.40
$10=$.05(12 miles)= $10.60

Hope this helps you! :D
6 0
3 years ago
What is the product of 5.86 × 10–7 and 3.1 × 104 1. Write the expression: (5.86 × 10–7)(3.1 × 104) 2. Rearrange the expression:
Alex Ar [27]

Answer:

this is the answer a good question

6 0
4 years ago
Read 2 more answers
What is 5÷ 1/9= what
Stella [2.4K]

Answer:

The answer is... 45

Step-by-step explanation:

5÷1/9=5×9=45

3 0
3 years ago
Read 2 more answers
Suppose I had a tower that stood two Earth radii tall from the surface of the Earth to the top I start on the ground with a scal
weqwewe [10]

Answer: The rock would still weigh 90lbs

Step-by-step explanation:

No, weight has being proven to reduce by the further you move from the center of the Earth. But since even the tallest buildings in the world or tallest mountains are a tiny fraction of the Earth’s radius, the difference in weight won’t be something that can be measured as it’s a tiny fraction. So the mass of the rock doesn’t change what changes is the gravitational force ( g ). So the rock would still end up weighing 90lbs even at the top of the tower because it is still within the earths atmosphere.

4 0
3 years ago
Find the difference of 11/12and5/12​
Hitman42 [59]

Answer:

1/2

Step-by-step explanation:

=11/12 -5/12

=(11-5)/12

=6/12

=1/2

This is solved simple subtraction method of fraction.

5 0
3 years ago
Other questions:
  • Aakash has a fever. His body temperature during the day was 99.2°F. By evening, his body temperature has increased by 3.4°F. His
    9·2 answers
  • most appropriate name for the function the quality of bread depend on the quantity of flour used to make it
    6·1 answer
  • Include parentheses in your answer.<br> (x3 + y3) ÷ (x - y)
    13·1 answer
  • If a box of nails cover 250 sq. ft. How many boxes do I need to cover 1320 sq.ft?​
    7·2 answers
  • Shoppers were surveyed about their spending for holiday shopping. The standard deviation of the amount shoppers
    8·1 answer
  • Plsplspslspss helppppieee
    6·1 answer
  • How will you practice to improve this skill? Or, what do you want to learn more about now?
    6·1 answer
  • A waterfall has a height of 1200 feet. A pebble is thrown upward from the top of the falls with an initial velocity of 24 feet p
    15·1 answer
  • Is -16/-2 rational or irrational?
    7·1 answer
  • 20 points math question will give brainliest #3
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!