Tutors Answer Your Questions about Finance (FREE)
Question 1110541: The radius of a circle is
(x + 2) cm.
Find the area of the circle in terms of the variable x. Leave the answer in terms of π
Can you please give me the answer to my question instead of the formula that doesnt help
Click here to see answer by Alan3354(69443)   |
Question 1110543: The length of a side of a square is (2x + 9) km. Find the area of the square in terms of the variable x.
Whoever is viewing this can you please give me the answer to the equation I have sent this in 3 times now and tutors have been being helpless
Click here to see answer by Alan3354(69443) |
Question 1110580: Planet A's satellite has an elliptical orbit described by
X`2/(4963)`2+ Y`2/4796`2=1
(All units are in miles.) The coordinates of the center of Planet A are(21,0). Complete parts a and b below.
. The perigee of the satellite's orbit is the point that is nearest Planet A's center. If the radius of Planet A is approximately 4063 miles, find the distance of the perigee above Planet A's surface.
The perigee's distance above Planet A's surface is
879 miles.
b. The apogee of the satellite's orbit is the point that is the greatest distance from Planet A's center. Find the distance of the apogee above Planet A's surface.
The apogee's distance above Planet A's surface is __________miles.
Click here to see answer by KMST(5328)  |
Question 1110580: Planet A's satellite has an elliptical orbit described by
X`2/(4963)`2+ Y`2/4796`2=1
(All units are in miles.) The coordinates of the center of Planet A are(21,0). Complete parts a and b below.
. The perigee of the satellite's orbit is the point that is nearest Planet A's center. If the radius of Planet A is approximately 4063 miles, find the distance of the perigee above Planet A's surface.
The perigee's distance above Planet A's surface is
879 miles.
b. The apogee of the satellite's orbit is the point that is the greatest distance from Planet A's center. Find the distance of the apogee above Planet A's surface.
The apogee's distance above Planet A's surface is __________miles.
Click here to see answer by ikleyn(52781)  |
Question 1110615: Find the amount accumulated FV in the given annuity account. (Assume end-of-period deposits and compounding at the same intervals as deposits. Round your answer to the nearest ten dollars.)
$200 deposited monthly for 15 years at 5% per year
*Btw, what I really want is for someone to provide a link to an online calculator. I want to be able to solve this on my own without having to constantly ask others*
Click here to see answer by Boreal(15235)  |
Question 1110582: A bridge spans a river. Its two towers are 3500 feet apart and rise 323 feet above the road. The cable between the towers has the shape of a parabola and the cable just touches the sides of the road midway between the towers. The parabola is positioned in a rectangular coordinate system with its vertex at the origin. The point (1750,323) lies on the parabola, as shown. Complete parts a and b.
a. Write an equation in the form y=ax`2 the parabolic cable. Do this by substituting 1750 for x and 323 for y and determining the value of a.
y=_____x`2 (Round to seven decimal places as needed.)
Click here to see answer by Fombitz(32388)  |
Question 1110582: A bridge spans a river. Its two towers are 3500 feet apart and rise 323 feet above the road. The cable between the towers has the shape of a parabola and the cable just touches the sides of the road midway between the towers. The parabola is positioned in a rectangular coordinate system with its vertex at the origin. The point (1750,323) lies on the parabola, as shown. Complete parts a and b.
a. Write an equation in the form y=ax`2 the parabolic cable. Do this by substituting 1750 for x and 323 for y and determining the value of a.
y=_____x`2 (Round to seven decimal places as needed.)
Click here to see answer by Alan3354(69443) |
Question 1110281: Hello, I would like help solving this word problem!
Biology rearing lambs produce "P" grams of milk after "D" days of lactation., which is modeled by P(D)= 273+5.4D-0.13D^2
A) Find the average rate of change over the first 20 days.
B) Find the rate of change on the 20th days. Interpret the meaning of your results.
Click here to see answer by Fombitz(32388) |
Question 1110326: A researcher wishes to estimate, with
9999%
confidence, the population proportion of adults who think the president of their country can control the price of gasoline. Her estimate must be accurate within
44%
of the true proportion.
a) No preliminary estimate is available. Find the minimum sample size needed.
b) Find the minimum sample size needed, using a prior study that found that
1818%
of the respondents said they think their president can control the price of gasoline.
c) Compare the results from parts (a) and (b).
Click here to see answer by Boreal(15235) |
Question 1110688: To maximize yearly revenue, a company wishes to determine the best-selling price for their new line of shirts. They realize that if the price is too high or too low, they will not maximize profit. The equation y=-16(x-30)^2+10 000 models the scenario, where x represents the selling price per shirt and y represents the number of shirts sold
Determine the selling price that maximizes the revenue
Determine the maximum number of shirts sold
What is the maximum revenue
What are the x-intercepts for the function?
Click here to see answer by Theo(13342)  |
Question 1111297: Teresa took a science test with 40 questions. If she missed 7 questions , and left 9 unanswered, what percent of the questions did she answer correctly.
Can someone show me how to do this step by step?
Click here to see answer by rfer(16322) |
Question 1111320: please give me hints or directions on how to solve my problem if possible for l am struggling especially with the formular ?
A plastic rectangular container with a length of 40 cm, a breadth of 30 cm and a height of 10 cm contains
12 identical cans each with a diameter of 10 cm and a height of 10 cm. The remaining space is filled with
cold water to keep the cans cool. How much water is required in litres?
Click here to see answer by josgarithmetic(39617) |
Question 1111322: please correct my answer or give second opinion cause the answers l am given do not match the one l am getting
30cm x 20cm x 25cm = 15000 which is the volume
6 x 10 x 3.14 x (30/2) = 42890
15000/42890 = 0.349
A rectangular glass tank is half filled with water. The measurements of the tank are given in the diagram
below. By how much, in terms of centimetres, will the water level rise if a solid cylindrical piece of iron,
with a diameter of 6 cm and a length of 10 cm, is dropped into the water? The answer, rounded to two
decimal digits,
[1] 0,57 cm
[2] 0,28 cm
[3] 2,26 cm
[4] 0,38 cm
Click here to see answer by ikleyn(52781) |
Question 1111366: Alvin, Theodore, and Simon went to the movies. Alvin bought 2 boxes of popcorn, 4 cherry slushies, and 2 boxes of candy. He spent $49.50. Theodore bought 3 boxes of popcorn, 2 cherry slushies, and 4 boxes of candy. He spent $57.75. Simon bought 3 boxes of popcorn, 3 cherry slushies, and 1 box of candy. He spent $38.50. Write a system of equations to represent this problem and determine the unit price of each item purchased. Define your variables.
Thanks!
Click here to see answer by josgarithmetic(39617) |
Question 1111433: A ship leaves (5 degrees north , 45 dEgrees east) and sails due east for 120hours to another island .the average speed of the ship is 27 knots.calculate the distance betwwen two island a) in nautical miles b) in kilometers c) the speed of the ship in km/hr
Click here to see answer by Alan3354(69443) |
Question 1111436: A ship leaves (5°N 45°E)
and sails due east for 120hours to another island .the average speed of the ship is 27 knots.calculate the distance betwwen two island a) in nautical miles b) in kilometers c) the speed of the ship in km/hr
Click here to see answer by ikleyn(52781) |
Question 1111284: Murphy used to consume 100 units of X and 50 units of Y when the price of X was $2 and the price of Y was $4. If the price of X rose to $6 and the price of Y rose to $6, how much would Murphy's income have to rise so that he could afford the original bundle?
Click here to see answer by ikleyn(52781) |
Question 1111492: The cross section of a metal ingot is a trapezoid the cross section has an area of 39 square cm the top base of the cross section is 12 centimeters the length of the bottom base is 2 centimeters greater than the top base how tall is a metal ingot explain
Click here to see answer by mananth(16946)  |
Question 1111598: A sociologist is interested in the relation between x = number of job changes and y = annual salary (in thousands of dollars) for people living in the Nashville area. A random sample of 10 people employed in Nashville provided the following information.
x (number of job changes) 4 5 7 6 1 5 9 10 10 3
y (Salary in $1000) 35 37 34 32 32 38 43 37 40 33
Σx = 60, Σy = 361, Σx2 = 442, Σy2 = 13,149, and Σxy = 2233.
(b) Find xbar, ybar, b, and the equation of the least-squares line. (Round your answers to three decimal places.)
xbar =
y bar =
b bar =
y^ =
Plot the line on the scatter diagram of part
(a).
(c) Find the sample correlation coefficient r and the coefficient of determination r 2. (Round your answers to three decimal places.)
r =
r 2 =
What percentage of variation in y is explained by the least-squares model? (Round your answer to one decimal place.)
%
(d) If someone had x = 7 job changes, what does the least-squares line predict for y, the annual salary? (Round your answer to two decimal places.)
thousand dollars
Click here to see answer by ikleyn(52781) |
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