Tutors Answer Your Questions about Finance (FREE)
Question 927644: hello..can someone help me ? I am establishing this trig identity
Cosa^3+sinb^3/cosb+sinb= 2-sin2b/2 and I get to 1-cosbsinb. How can 1-cosbsinb = 2-sin2b/2 I am challenged by this because I do not see an identity that relates. Thank you in advance !!
Click here to see answer by jim_thompson5910(35256)  |
Question 927752: Hello everyone, i need help with this question. Happy Thanksgiving and god bless.
If $1000 is deposited in an account that earns 6.3% interest compounded continuously, how much will be in the account after 3 years? Can someone explain to me the formula used and how you came up with the answer? thank you
Click here to see answer by MathLover1(20849)  |
Question 928040: Hey guys, I was wondering if you guys could help me or guide me thru these questions, thanks for your time.
The half-life of radioactive plutonium-238 is 87.7 years. If ten grams are present now:
a) Build an exponential function that models the amount of plutonium-238 after t years.
b) Use your function to determine the amount of plutonium-238 remaining after 200 years. Solve this algebraically.
Click here to see answer by MathLover1(20849) |
Question 928039: hey guys i was wondering if you guys could help me out with this question, thanks a lot.
1) A student invests $4000 in a savings bond that earns 5.3% interest compounded quarterly.
a) Write the future value of this investment as a function of time.
b) What is the value of this investment after 3 years?
c) Algebraically calculate the numbers of years for the investment to be worth $12,000.
Click here to see answer by ewatrrr(24785)  |
Question 929258: Hi there, my question is about finding the percent interest, could you help me out, please?
Information given in problem:
Use formula A=P(1+(r/n))^(nt)
Amount invested--$5700
Number of Compounding Periods--360
Accumulated Amount--$11600
Time in "t" years--17
I am not sure how to solve for "r" in this situation.
Thank you!
Click here to see answer by ewatrrr(24785) |
Question 930244: Hi,
How would I work this out - need to understand the steps in simple terms not just the answer (very new to algebra):
Smith industries has 50 workers. Yellow workers are paid $600 per week and red workers are paid $1000 per week. Smith industries weekly payroll is $42,000. How many red workers does Smith industries have?
Thank You!
Click here to see answer by algebrahouse.com(1659)  |
Question 930309: Merry is a trucker and needs to keep track of her mileage for business purposes. She begins a trip with an odometer reading of r miles and ends the trip with an odometer reading of t miles.
a. Express the total of miles covered algebraically.
b. If the tip takes h hours of driving, express the average speed algebraically.
c. If the truck used g gallons of gas during the trip, express the mpg the truck averaged during the trip algebraically.
Click here to see answer by stanbon(75887) |
Question 930309: Merry is a trucker and needs to keep track of her mileage for business purposes. She begins a trip with an odometer reading of r miles and ends the trip with an odometer reading of t miles.
a. Express the total of miles covered algebraically.
b. If the tip takes h hours of driving, express the average speed algebraically.
c. If the truck used g gallons of gas during the trip, express the mpg the truck averaged during the trip algebraically.
Click here to see answer by ewatrrr(24785) |
Question 930468: Please help:
Tilly is graduating this spring and wishes to endow NYU with 200,000 in 14 Years. find the amount she would have to invest on graduation at 12% compound continuously to achieve this.
Thank you for taking the time to help.
Click here to see answer by nerdybill(7384)  |
Question 930792: Suppose that $2000is invested at a rate of 4.4% compounded quarterly. Assuming that no withdrawals are made, find the total amount after 7 years.
Do not round any intermediate computations, and round your answer to the nearest cent.
Click here to see answer by lwsshak3(11628) |
Question 930791: The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 8% per day. A sample of this radioactive substance has an initial mass of 2.01 kg Find the mass of the sample after two days. Round your answer to two decimal places.Note: This is a continuous exponential decay model.And though the decay rate parameter is 8%per day, the actual decay is not 8% each day.
Click here to see answer by josgarithmetic(39617) |
Question 930789: A loan of $37,000 is made at 5.5% interest, compounded annually. After how many years will the amount due reach $62,000 or more? (Use the calculator provided if necessary.)Write the smallest possible whole number answer
Click here to see answer by lwsshak3(11628) |
Question 930794: The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 5% per day. A sample of this radioactive substance has an initial mass of 4.71 kgFind the mass of the sample after two days. Round your answer to two decimal places.Note: This is a continuous exponential decay model.And though the decay rate parameter is 5% per day, the actual decay is not 5% each day.
Click here to see answer by josgarithmetic(39617) |
Question 930793: A certain forest covers an area of 2400km2 Suppose that each year this area decreases by 7.5%. What will the area be after 8 years?Use the calculator provided and round your answer to the nearest square kilometer.
Click here to see answer by Alan3354(69443)  |
Question 930905: Suppose that $2000 is invested at a rate of 4.4% , compounded quarterly. Assuming that no withdrawals are made, find the total amount after
7years.Do not round any intermediate computations, and round your answer to the nearest cent.
Click here to see answer by rfer(16322) |
Question 930907: A certain forest covers an area of 2400km2. Suppose that each year this area decreases by 7.5% . What will the area be after 8 years?Use the calculator provided and round your answer to the nearest square kilometer
Click here to see answer by Alan3354(69443) |
Question 931233: Jenny is putting money into a savings account. She starts with $350 in the savings account, and each week she adds $60. Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Jenny has been adding money. Write a equation relating S to W. Then use this equation to find the total amount of money in the savings account after 11 weeks.
EQUATION:???
TOTAL AMOUNT OF MONEY AFTER 11 WEEKS:???
Click here to see answer by TimothyLamb(4379)  |
Question 932104: Bruno wants to buy a boat which costs P1,700,000. He has saved P500,000, which he will use as a deposit, and he will finance the rest of it by taking out a loan to be paid back in equal monthly installments, amortized over 5 years at an annual interest rate of 12%. What will his monthly payments be?
Click here to see answer by TimothyLamb(4379) |
Question 932297: An amount of $48,000is borrowed for 13 years at
8% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?
Use the calculator provided and round your answer to the nearest dollar
Click here to see answer by rfer(16322) |
Question 932505: Question Number 1 of 5 - Geometry
A circle has a radius of 8 centimeters. The measure of the arc of the shaded section is 72°. Which is closest to the area of the shaded section of the circle?
160.8 cm2
40.2 cm2
10.1 cm2
50.3 cm2
That's My Final Answer!
Click here to see answer by MathLover1(20849) |
Question 932921: A. Find the amount after 6 years for initial investment of 23000 at rate of 2.25% compounded quarterly. B. Using same figure from part A, compute simple interest and amount. Compare your results and suggest which one of two investment is more profitable.
I think part A is more profitable
Click here to see answer by ewatrrr(24785) |
Question 932922: A. Find monthly payment for an automobile with suggested retail price of 19000, financed at the rate of 7.9%. B. If the car dealership require 5% down payment, find the monthly payment for the amount financed.
Click here to see answer by ewatrrr(24785) |
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