Help! Applied Calculus
Suppose a tractor purchased at a price of $60,000 is to be depreciated by the double declining-balance method over a 10-year period. It can be shown that the rate at which the book value will be decreasing is given by
R(t) = 13988.61e−0.22614t (0 ≤ t ≤ 10)
dollars/year at year t. Find the amount by which the book value of the tractor will depreciate over the first 7 years of its life. (Round your answer to the nearest dollar.)

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

c. 6tan80

step-by-step explanation:

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right