Tutors Answer Your Questions about Finance (FREE)
Question 1191430: A river is flowing downstream at rate of 2km/h.
Murray can swim at a rate of 3km/h.
Murray jumps in and swims downstream for a certain distance then turns around and swims upstream back to the start. In total it takes 30 minutes.
How far did Murray swim downstream?
I got 15/16 km but the answer is 5/12 km. How did it get to 5/12km?
Click here to see answer by greenestamps(13200)  |
Question 1191430: A river is flowing downstream at rate of 2km/h.
Murray can swim at a rate of 3km/h.
Murray jumps in and swims downstream for a certain distance then turns around and swims upstream back to the start. In total it takes 30 minutes.
How far did Murray swim downstream?
I got 15/16 km but the answer is 5/12 km. How did it get to 5/12km?
Click here to see answer by Alan3354(69443)  |
Question 1191509: A group of office workers had some prize money to distribute among themselves. When all but one took $9 each, the last person only received $5. When they all took $8 each, there was $12 left over. How much had they won?
Click here to see answer by ikleyn(52781)  |
Question 1191637: According to the United Nations Fund for Population Activities, the population of the world x years after the year 2000 will be 5.89e0.0175xbillion people (for 0 ≤ x ≤ 20). Use this formula to predict the world population in the year 2012. (Round your answer to two decimal place.)
Click here to see answer by josgarithmetic(39617) |
Question 1191637: According to the United Nations Fund for Population Activities, the population of the world x years after the year 2000 will be 5.89e0.0175xbillion people (for 0 ≤ x ≤ 20). Use this formula to predict the world population in the year 2012. (Round your answer to two decimal place.)
Click here to see answer by Theo(13342)  |
Question 1191601: TRIGONOMETRY
B. Magnitude of Vectors
1. Find the magnitude of the Vector ML if point M has coordinates (2,-8) and point L has coordinates (-5,2).
2. Find the magnitude of the x- and y- components, to the nearest whole number if ||v|| = 29 units, and v has a direction angle of 25 degrees.
Show full solution, thank you!
Click here to see answer by Alan3354(69443)  |
Question 1191686: A rounded metal plate is made from a rectangular sheet of metal of size x cms by y cms. Each corner is rounded off to a quadrant of circle, radius r.
a) If A (square cms) is the area of the finished plate,
find an expression for A in terms of x,y and r, explaining your method.
b) Hence show that r=sqrt[ (xy-A)/(4-pi) ]
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1191686: A rounded metal plate is made from a rectangular sheet of metal of size x cms by y cms. Each corner is rounded off to a quadrant of circle, radius r.
a) If A (square cms) is the area of the finished plate,
find an expression for A in terms of x,y and r, explaining your method.
b) Hence show that r=sqrt[ (xy-A)/(4-pi) ]
Click here to see answer by Edwin McCravy(20055)  |
Question 1191685: The marks in English in a recent test had a mean of 76% with a standard deviation of 7%. The Science results had a mean of 84% with a standard deviation of 5%. Jasmine obtained scores of 86% in English and 89% in Science.
a) Which is the better result? Explain your answer.
b) If there are 30 people in the class, estimate Jasmine's position in Science.
Click here to see answer by Theo(13342)  |
Question 1191717: One optical scanner can read and grade a set of standard answer
sheets in; the time it takes another scanner to do the same job.
Together they can read and grade the sheets in 12 min. How long
would it take each scanner alone to do the job? Pls explain how to do this I’m have no clue.
Thanks
Click here to see answer by ikleyn(52781)  |
Question 1191445: C. CROSS PRODUCT AND DOT PRODUCT (TRIGONOMETRY)
Solve the following using both the DOT Product and the Cross Product
1. ||a|| = 16 units , ||b|| = 4 units , 𝜃 = 90 𝑑𝑒𝑔𝑟𝑒𝑒
2. a (15,4,3) and b( 7,9,12)
Show full solutions, thank you!
Click here to see answer by Alan3354(69443)  |
Question 1191767: The US national debt at the beginning of 2008 was about $9.5 trillion, and at the beginning of 2010 it was about 12.8 trillion. Write a linear function, d, to predict the national debt for any year, x. Then predict the debt at the beginning of 2020. Explain why you think your linear function is or is not a good model for the national debt.
Click here to see answer by Boreal(15235)  |
Question 1191923: The share price of a stock is $95. The stock will pay an annual dividend of $7 in the following 3 years. The first dividend will be paid one year from now. The continuous compounding interest rate %, determine the forward price of the forward contract that matures in 3 years. Round your answer to the nearest dollar.
Click here to see answer by ikleyn(52781)  |
Question 1191925: The current share price of a stock is $95.00. The stock will pay an annual dividend of $7.00 in the following 3 years. The first dividend will be paid one year from now. The continuous compounding interest rate is 4%. Determine the forward price of the forward contract that matures in 3 years. Round your answer to the nearest dollar.
Click here to see answer by ikleyn(52781)  |
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