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
dimulka [17.4K]
3 years ago
15

A sum is invested at 4% continuous interest. This means that its value grows exponentially with k equaling the decimal rate of i

nterest. Find, to the nearest tenth of a year, the time required for the investment to double in value.
Mathematics
1 answer:
Zanzabum3 years ago
4 0

Answer:

T = 72/4 = 18years

T = 20years (to the nearest tenth)

Step-by-step explanation:

Using the rule of 72, which is used to estimate the number of years for a given investment to double at a given interest rate.

Doubling time = 72/interest rate

T = 72/r

Rate r (in percentage) = 4%

Time T (in years)

T = 72/4 = 18years

T = 20years (to the nearest tenth)

You might be interested in
Can someone help solve this
sdas [7]
The lnl is an absolute number which basically means it's positive regardless
So now its 7n-7=14
Simply add the 7 to the 14 to get it off the 7n side so you can simplify
Now it's 7n=21
Now just divide
21/7=3
3=N
That means 7 times N=21
8 0
3 years ago
3. The value of the expression 5.104 + 4.103 + 7.10 + 1 is equal to: 
ratelena [41]
5.104+4.103+7.10+1=
9.207+7.10+1=
16.307+1=
17.307
8 0
3 years ago
Read 2 more answers
The value of the 7 in 27,459 is how many times the value of the 7 in 40,735?
alukav5142 [94]

Answer:

10

Step-by-step explanation:

The 7 in 27,459 is in the <em>thousands</em> place.

The 7 in 40,735 is in the <em>hundreds</em> place.

Any digit in the thousands place has 10 times the value of the same digit in the hundreds place. (The multiplier is 1000, instead of 100.)

_____

In the base-10 number system, each digit location has 10 times the value of the location to its right. The value is determined by the place the digit occupies in the number. That is why it is called a place-value number system.

4 0
3 years ago
Read 2 more answers
Solve for the roots in the equation below. In your final answer, include each of the necessary steps and calculations.
Nostrana [21]
x^3-27i=0
x^3=27i
x^3=27e^{i\pi/2}
x=\left(27e^{i\pi/2}\right)^{1/3}
x=3e^{i(\pi/2+2\pi k)/3}
x=3e^{i\pi(4k+1)/6}

where k\in\{0,1,2\}. This means you have

x=3e^{i\pi/6}=\dfrac32(\sqrt3+i)
x=3e^{i5\pi/6}=\dfrac32(-\sqrt3+i)
x=3e^{i9\pi/6}=-3i

as the solutions to the original equation.
4 0
3 years ago
1. What is the value of x in the figure?<br> (4x + 2)<br> 150°
vlabodo [156]
X = 37
150= 4x + 2
148 = 4x
X = 37
3 0
3 years ago
Other questions:
  • Kayla has 36 yellow stickers, 27 red stickers, and 18 blue stickers. She wants to distribute the stickers into bags so that each
    8·1 answer
  • a horse that is ill needs medication. the medication costs the veterinarian $17.50 to buy. He marked up the medication 54.2% bef
    5·1 answer
  • What is 25 more than 50 as an expression
    12·2 answers
  • PLEASE HELP!!! 100 PTS +Brainliest!!!Given the following values, which point would be considered an outlier?
    12·1 answer
  • Subtract 28 from 54, and then subtract the difference from 32. Which expression means the same as the words ?
    8·1 answer
  • Use properties of addition and subtraction to evaluate the expression.
    13·1 answer
  • Graph the equation 2x+8y=-32
    12·2 answers
  • Write an algebraic expression for the verbal expression. the product of 13 and x
    5·1 answer
  • Explain how solving -7y &gt; 161 is different from solving 7y &gt; -161. <br><br> 15 points
    8·1 answer
  • Please help, I have ask it 5 times. Please.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!