Camila wants to make scrapbooks with old family
photos. An online scrapbooking company
c...
Mathematics, 20.03.2020 06:29, xTrippyBeach4201x
Camila wants to make scrapbooks with old family
photos. An online scrapbooking company
charges $11 for a basic book and $4 per page.
Meanwhile, a family friend, Sasha, is willing to make
a scrapbook for $50 plus $1 per page. For a certain
number of pages, the price would be equal. How much
would that cost & how many pages would that be ?
Answers: 2
Mathematics, 21.06.2019 19:50, Roshaan8039
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 23:30, blueval3tine
Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?
Answers: 1
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