Mathematics, 05.07.2019 23:40 dele53
Samantha's hockey team is fundraising for a trip to europe! they are aerating lawns to raise money. aerating
lawns is a great service for homeowners because it the grass grow new roots and absorb water
producing healthier lawns! the team has decided to charge $35/lawn for city-sized lots. the rental cost for two
aerating machines is $215. samantha's team has planned a saturday to aerate.
a. write an equation to relate the fund raised, r, in dollars to the number of lawns, i,
aerated during the day.
b. samantha's team was able to aerate 26 lawns in one day! how much money did they
raise?
how much money would the team lose if they were unable to aerate due to weather conditions? is there any
possible way they could avoid this potential loss?
plz
Answers: 2
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 21:00
Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?
Answers: 1
Samantha's hockey team is fundraising for a trip to europe! they are aerating lawns to raise money....
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