Which of the following is not a reason that polyethylene films has become the most popular greenhouse covering?
A) It comes in multiple thicknesses.
B) It is less expensive than most other coverings.
C) It has a long life expectancy.
D) When used as a double layer it has low heat loss.
C
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Use economic equivalence to determine the amount of money or value of i that makes the following statements correct.
(a) $5000 today is equivalent to $4275 exactly 1 year ago at i = ___% per year. (b) A car that costs $28,000 today will cost $____ a year from now at i = 4% per year. (c) At i = 4% per year, a car that costs $28,000 now, would have cost $____ one year ago. (d) Last year, Jackson borrowed $20,000 to buy a preowned boat. He repaid the principal of the loan plus $2750 interest after only 1 year. This year, his brother Henri borrowed $15,000 to buy a car and expects to pay it off in only 1 year plus interest of $2295. The rate that each brother paid for his loan is ___ % for Jackson and ___ % per year for Henri. (e) Last year, Sheila turned down a job that paid $75,000 per year. This year, she accepted one that pays $81,000 per year. The salaries are equivalent at i = ____% per year.
There is a growing concern among agribusinesses that there will be too many college graduates with
training in the field of agriculture.
Indicate whether the statement is true or false.The wire sizes used in welded-wire fabric reinforcement are designated by _____
a. AWG wire gauge b. cross-sectional area in hundredths of a square inch c. cross-sectional area in hundredths of a square centimeter d. diameter in thousandths of an inch
As long as all the surfaces of an object are parallel or at right angles to one another, they may be represented in one or more ____ views.
A. orthogonal B. parallel C. auxiliary D. regular