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Total U.S. farmland occupies 954 million acres. How many square miles is this? (l acre 43,560 ft2, I mile 5280 ft).
Total U.S. land area is 3.537 million square miles. What per-centage Of U.S. land is farmland?
I post this question in Chegg but they give me wrong answer , please I want write answer with detales and explaination
In: Chemistry
A random sample of 30 Suffolk University employees had an average commute length of 13.5 miles, with a standard deviation of 7.5 miles. What is the 90% confidence interval for the mean commute length of all Suffolk employees? Use 4 non-zero decimal places in your calculations.
(a) Find the tα/2 , df
(b) Find σx
(c) Find the margin of error (MoE) and construct the confidence interval
In: Statistics and Probability
linton company purchased a delivery truck for 33.000 on january 1 2017 the truck has an expected salvage value of 1,300 and is expected to be driving 109,000 miles over its esitmated useful of life of 9 years. acutal miles driving were 15,400 for 2017 and 12,500 in 2018 what is the depreication expense for 2017 and 2018 using the stright line method , the unit of activity method and the decling balance method
In: Accounting
Cliffs of Insanity Point is located 194 miles from the Pedimaxus International Airport at a bearing of N8.7ºE. The wind is blowing from the southeast to the northwest at 23 miles per hour. What speed and bearing should the pilot take so that she makes the trip in 2 hours? Round the speed to the nearest hundredth of a mile per hour and your angle to the nearest tenth of a degree.
speed = mph
bearing=
In: Advanced Math
QUESTION 5
The Layton Tire and Rubber Company wishes to set a minimum mileage guarantee on its new MX100 tire. Tests reveal the mean mileage is 67900 with a standard deviation of 2050 miles and that the distribution of miles follows the normal distribution. They want to set the minimum guarantee mileage so that no more than 4 percent of tires will be replaced. What minimum guaranteed mileage should Layton announce?
In: Statistics and Probability
A student bikes to school by traveling first dN = 1.10 miles north, then dW = 0.500 miles west, and finally dS = 0.200 miles south.
Part A
If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, what distance db would the bird cover?
Part B
Let the vector dN be the displacement vector corresponding to the 1st leg of the trip. Express dN in component form.
Part C
For the 2nd leg (dW):
Part D
For the 3rd leg (dS):
Part E
The displacement vector for the bird, db can be written as dN + dW + dS. Express this vector in component form:
Part F
Find φ, the angle North of West of the path followed by the bird.
In: Physics
Bob, Peter and Paul travel together. Peter and Paul are good
hikers; each walks p miles per hour. Bob has a bad foot and drives
a small car in which two people can ride, but not three; the car
covers c miles per hour. The threee friends adopted the following
scheme: They start together, Paul rides in the car with Bob, Peter
walks. After a while, Bob drops Paul who walks on; Bob returns to
pick up Peter, and then Bob and Peter ride in the car till they
overtake paul. At this point, they change: Paul rides and Peter
walks just as they started and the whole procedure is repeated as
often as necessary.
A. How much progress (how many miles) does the company make per
hour?
In: Advanced Math
Marc Lusebrink, sole proprietor of Oak Company, bought a used automobile and drove it 13,326 miles for business during 2017 and a total (including business miles) of 16,250 miles. His total expenses for his automobile for the year are:
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The automobile cost $15,000 on January 1, and depreciation expense for the year, including business use, was $3,000. His business parking and toll fees for business amount to $327.
Calculate Marc's transportation expense deduction for the year under each method listed below.
Round business use to the nearest whole percentage. If required, round your answers to the nearest dollar.
Standard Mileage Method: $
Actual Cost Method:
In: Accounting
Your small remodeling business has two work vehicles. One is a small passenger car used for job-site visits and for other general business purposes. The other is a heavy truck used to haul equipment. The car gets 25 miles per gallon (mpg). The truck gets 10 mpg. You want to improve gas mileage to save money, and you have enough money to upgrade one vehicle. The upgrade cost will be the same for both vehicles. An upgraded car will get 40 mpg; an upgraded truck will get 12.5 mpg. The cost of gasoline is $3.70 per gallon.
Suppose you drive the truck 12,000 miles per year. How many miles would you have to drive the car before upgrading the car would be the better choice?
In: Finance
Determine an approximate sample size required to construct a 90% confidence interval for the mean number of miles on four-year -old Honda Civics, with a margin of error of 1000 miles. Assume that a preliminary study showed that the standard deviation is estimated to be 19,700 miles.
A random sample of 32 washing machines had a mean replacement time of 10.6 years and a population standard deviation of 2.1 years. Find the margin of error that corresponds to 99% confidence level.
A football coach randomly selected ten players and timed below long each player took to perform a certain drill. The times (in minutes) were:
7.6 10.4 9.7 8.4 11.8
7.0 6.5 11.1 10.4 12.4
Construct a 95% confidence interval for the mean time for all players
In: Statistics and Probability