Mathematics, 26.08.2019 23:30 isabelcrosabal
Nellie is buying bird seed to put in her bird feeders. she uses about 10 pounds of bird seed each week, but has room to store any extra that she purchases. the bird seed comes in 3 different sizes as given below: 3.5 pounds for $2.52 7.5 pounds for $5.40 11 pounds for $7.92 nellie is trying to be a smart shopper and get the best deal on the bird seed. which size bag of bird seed should nellie buy?
Answers: 2
Mathematics, 21.06.2019 18:30, andrewmena05
Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?
Answers: 2
Mathematics, 21.06.2019 19:50, Roshaan8039
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
Nellie is buying bird seed to put in her bird feeders. she uses about 10 pounds of bird seed each we...
English, 21.02.2021 02:40
Spanish, 21.02.2021 02:40
Mathematics, 21.02.2021 02:40
Mathematics, 21.02.2021 02:40