
Concept explainers
Tocomplete:
The given table for a savings account which is compounded continuously.

Answer to Problem 17E
The completed table is:
Initial InvestmentAnnual % RateTime to DoubleAmount After10 Years$50001.25%55.45$5665.74
Explanation of Solution
Given:
Initial investment in a continuously compounded account is $5000 and after 10 years it becomes $5665.74.
Formula used:
Amount in a continuously compounded account is given by:
A=Pert
Calculation:
We have been given the initial investment as $5000 and that it becomes $5665.74.Upon substituting these values in the formula for continuously compounded interest, we get:
5665.74=5000er(10)⇒e10r=5665.745000=1.133148⇒10r=ln(1.133148)⇒r=0.124999610=0.01249994⇒r=1.25%
We can rewrite the formula as: A=5000e0.0125t
In order to find the doubling time, we will replace A by 10000 and solve for t as shown below:
A=5000e0.0125t⇒10000=5000e0.0125t⇒e0.0125t=100005000=2⇒0.0125t=ln2⇒t=ln20.0125≈55.45
Therefore, the complete table is:
Initial InvestmentAnnual % RateTime to DoubleAmount After10 Years$50001.25%55.45$5665.74
Chapter 3 Solutions
Precalculus with Limits: A Graphing Approach
- What is the particular solution to the differential equation y′′ + y = 1/cos t ?arrow_forwardWhich of the following is the general solution to y′′ + 4y = e^2t + 12 sin(2t) ?A. y(t) = c1 cos(2t) + c2 sin(2t) + 1/8 e^2t − 3t cos(2t)B. y(t) = c1e^2t + c2e^−2t + 1/4 te^2t − 3t cos(2t)C. y(t) = c1 + c2e^−4t + 1/12 te^2t − 3t cos(2t)D. y(t) = c1 cos(2t) + c2 sin(2t) + 1/8 e^2t + 3 sin(2t)E. None of the above. Please include all steps! Thank you!arrow_forwardShow that i cote +1 = cosec 20 tan 20+1 = sec² O २ cos² + sin 20 = 1 using pythagon's theoremarrow_forward
- Find the general solution to the differential equationarrow_forwardcharity savings Budget for May travel food Peter earned $700 during May. The graph shows how the money was used. What fraction was clothes? O Search Submit clothes leisurearrow_forwardExercise 11.3 A slope field is given for the equation y' = 4y+4. (a) Sketch the particular solution that corresponds to y(0) = −2 (b) Find the constant solution (c) For what initial conditions y(0) is the solution increasing? (d) For what initial conditions y(0) is the solution decreasing? (e) Verify these results using only the differential equation y' = 4y+4.arrow_forward
- Aphids are discovered in a pear orchard. The Department of Agriculture has determined that the population of aphids t hours after the orchard has been sprayed is approximated by N(t)=1800−3tln(0.17t)+t where 0<t≤1000. Step 1 of 2: Find N(63). Round to the nearest whole number.arrow_forward3. [-/3 Points] DETAILS MY NOTES SCALCET8 7.4.032. ASK YOUR TEACHER PRACTICE ANOTHER Evaluate the integral. X + 4x + 13 Need Help? Read It SUBMIT ANSWER dxarrow_forwardEvaluate the limit, and show your answer to 4 decimals if necessary. Iz² - y²z lim (x,y,z)>(9,6,4) xyz 1 -arrow_forward
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning





