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Question 1113020: Integrationof 2x/(1+log (1+x))
Click here to see answer by rothauserc(4718)

Question 1113024: determine the roots of f(x)=-x^2=8x-16
Approximately how many units must be manufactured to maximise a profit defined by the function f(x)=-x^2=8x-16?
Click here to see answer by Alan3354(69443)

Question 1113033: You invest $1,300 in an account that has an annual interest rate of 5%, compounded annually. How much money will be in the account after 10 years? Round to the nearest whole number.
Click here to see answer by rfer(16322)

Question 1113055: Jacob invests $540 at 4.5% compounded quarterly. Estimate the doubling time of
this investment. Verify your estimate.
Click here to see answer by stanbon(75887)

Question 1113034: Can somebody explain it to me how to solve this math problem. I appreciate it very much.
Click here to see answer by richwmiller(17219)

Question 1113054: Alexander deposited some money into an account with a
fixed rate of interest, compounded annually. The growth
of the investment is shown in the table.
What is the annual rate of interest, to the nearest
percent? What principal did Alexander invest?
TABLE:
End of Value of
Year Investment ($)

1 517.50
2 535.61
3 554.36
Click here to see answer by stanbon(75887)

Question 1113039: Determine the roots of f(x) = -x^2+8x-16.
Approximately how many units are must be manufactured to maximize a profit defined by the the function -x^2+8x-16?
Click here to see answer by josgarithmetic(39617)

Question 1113103: An airplane travels 1200 miles in 4 hours with the wind. The return trip against the wind takes 5 hours. What is the wind speed and the speed of the airplane in still air?
Click here to see answer by ikleyn(52781)

Question 1113102: The admission fee at an amusement park is $2.75 for children and $4.80 for adults. On a certain day, 316 people entered the park, and the admission fees collected totaled 1197 dollars. How many children and how many adults were admitted?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1113161: An airplane travels 120 miles in 2 hours with the wind. The return trip against the wind takes 3 hours. What is the wind speed and the speed of the airplane in still air?
Click here to see answer by Alan3354(69443)

Question 1113217: A printed page has 1-inch at the top and bottom, and 3/4-inch margins on each side. The area of the printed portion of the pages is 48 square inches. Find the dimension of the page, which has the smallest possible area.
Click here to see answer by Boreal(15235)

Question 1113235: How much can you withdraw after 6 months if you deposit $500 into a bank that offers 3% simple interest?
Click here to see answer by Alan3354(69443)

Question 1113276: Write the first four terms of the sequence whose general term is given below.
a_n=5(n+1)!
a_1=
a_2=
a_3=
a_4=
Click here to see answer by MathLover1(20849)

Question 1113289:
Two pipes can be used to fill a pool. Working together, the two pipes can fill the pool in 8 hours. The larger pipe can fill the pool in 4 hours less time than the smaller pipe can alone. Find the time to the nearest tenth of an hour it takes for the smaller pipe working alone to fill the pool.
Click here to see answer by josgarithmetic(39617)

Question 1113288: A theater has 40 rows with 26 seats in the first row, 31 in the second row, 36 in the third row, and so forth. How many seats are in the theater?
Click here to see answer by mananth(16946)

Question 1113286: To save for retirement, you decide to deposit $1250 into an IRA at the end of each year for the next 30 years. If the interest rate is 8% per year compounded annually, find the value of the IRA after 30 years. (Round to the nearest dollar.)
Click here to see answer by ikleyn(52781)

Question 1113287: Find out how long it takes a $2900 investment to earn $500 interest if it is invested at 8% compounded monthly. Round to the nearest tenth of a year.
Click here to see answer by Theo(13342)

Question 1113311: Write the first five terms of the arithmetic sequence with the given first term, a_1, and common difference, d.
a_1=-0.8 ,d=0.9
Click here to see answer by Fombitz(32388)

Question 1113328: A=05
Click here to see answer by ikleyn(52781)

Question 1113322: Pls help
Use integration by parts to find

∫ e^-x cosx dx
Click here to see answer by Edwin McCravy(20055)

Question 1113349: please help

Find the area bounded between
a) f(x) = 1/x and g(x) = x^2 on the interval [1,3]
b) f(x) = x^3 - 3x^2 + 2x and x-axis on the interval [1,2]
c) f(x) = sinx and g(x) = cosx on the interval from 0 to the first intersection point on the positive axis.
Click here to see answer by ikleyn(52781)

Question 1113321: please help
Use integration by parts to find
∫ (lnx/√x)dx

Click here to see answer by Boreal(15235)

Question 1113312: Find the accumulated value of an investment of $ 6000 at 5.5% compounded continuously for 6 years. Round to the nearest cent.
Click here to see answer by rfer(16322)

Question 1113160: The admission fee at an amusement park is $1.50 for children and $6.20 for adults. On a certain day, 285 people entered the park, and the admission fees collected totaled 1015 dollars. How many children and how many adults were admitted?
Click here to see answer by mananth(16946)

Question 1113429: Go to https://www.salaryexpert.com/salary/browse/jobs/ (for career information)
� Under Salary Info you will see: List of Average Job Salaries & Salary Comparisons by selected Careers; OR
� Type in the Search bar to locate a career choice you are interested in, using the program of study you are pursuing
(PRINT the screen (or use the �snipping tool�) of the Career Choice you have chosen & attach it to your project.)
1. Find the annual median salary from the website.
� Median annual salary (1 pt.): _________________________

Click here to see answer by solver91311(24713)

Question 1113310: Find out how long it takes a $3500 investment to earn $300 interest if it is invested at 8% compounded semiannually. Round to the nearest tenth of a year.
Click here to see answer by solver91311(24713)

Question 1111263: If the population of a particular country is growing at 3.5% compounded continuously, how long will it take the population to quadruple?
Click here to see answer by math_helper(2461)

Question 1113251: Can somebody help me to solve this, I appreciate it very much.
The daily cost of producing x high performance wheels for racing is given by the following function, where no more than 100 wheels can be produced each day. What production level will give the lowest average cost per wheel? What is the minimum average cost?
C(x)=0.03x^3-4.5x^2+171x; (0,100]
Click here to see answer by greenestamps(13200)

Question 1113372: Customers of a phone company can choose between two service plans for long distance calls. The first plan has no monthly fee but charges $0.20 for each minute of calls. The second plan has a $20 monthly fee and charges an additional $0.15 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?
Click here to see answer by josmiceli(19441)

Question 1113529: STATISTICS. Suppose two numbers, x and y, generated at random, where 0 < x < 5 and 0 < y <10. What is the probability that the sum is less than or equal to 2? [hint: x and y are not discrete variables. Use the concept of geometric probability]
Click here to see answer by greenestamps(13200)

Question 1113566: if x=2+root3/2-root3 then find the value of x+1/x
Click here to see answer by ikleyn(52781)

Question 1113567: IF X=2+ROOT3 FIND THE VALUE OF ROOT2X+1/ROOT2X
Click here to see answer by ikleyn(52781)

Question 1113571: CALCULUS. Find (d^2 y)/(dx^2) if y=(x^2 +1)^5. Please help. Thankyou in advance!
Click here to see answer by math_helper(2461)

Question 1113571: CALCULUS. Find (d^2 y)/(dx^2) if y=(x^2 +1)^5. Please help. Thankyou in advance!
Click here to see answer by Alan3354(69443)

Question 1113618: suppose that the water level varies 70 inches between low tide at 8:.40 AM and high tide at 2:55PM .what he cosine function that models the variation in inches above and below the average water level as a function of the number of hours since 8:40AM .at what point in the cycle does the function cross the midline.what does the midline represent.
Click here to see answer by Alan3354(69443)

Question 1113640: A bag contains 30 white marbles and 30 black marbles. If 8 marbles are chosen, what is the probability that there will be 2 white marbles and 6 black marbles?
Click here to see answer by amalm06(224)

Question 1113586: Shauna had an English average of 84%. on her next test she scored 93%, and this raised her overall average to 86%. On the test after this, her average fell to 85%. what was her mark on the last test?
Click here to see answer by greenestamps(13200)

Question 1113674: ((( WHAT DOES THIS MEAN PLEASE))))))))))
Rationalists, wearing square hats,
Think, in square rooms,
Looking at the floor,
Looking at the ceiling.
They confine themselves
To right-angled triangles.
If they tried rhomboids,
cones, waving lines, ellipses--
As, for example, the ellipse of the half-moon--
Rationalists would wear sombreros.
Click here to see answer by math_helper(2461)

Question 1113703: An on-demand publisher charges $22.50 to print a 600 page book and $15.50 to print a 400 page book. Find a linear function which models the cost of a book C as a function of the number of pages p. Interpret the slope of the linear function and find and interpret C(0).
Click here to see answer by ikleyn(52781)

Question 1113696: For winter break, Lindsey and sloan decided to make the 510 mile trip from Charlotte North Carolina to Philadelphia Pennsylvania together. Sloan drove a speed of 63 mph for 4 1/2 hours.Lindsay drove for 3 1/2 hours. What was Lindsay speed. Please round to the nearest miles per hour
Click here to see answer by ikleyn(52781)

Question 1113783: 1/8 part of a pencil is blck and 1/2 part of the remaining is white. If the remaining part is blue and length of this blue part is 3 1/2 cm. then find the length of the pencil.
a)6cm
B)7cm
C)8cm
D)9cm
Click here to see answer by stanbon(75887)

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