A warehouse store sells 4.5​-ounce cans of tuna in packages of . A package of cans costs ​$3.78. The store also sells 3.5​-ounce cans of the same tuna in packages of 6. A package of cans costs ​$6.30. The store sells 6.5​-ounce cans in packages of 8 cans for ​$13.52. Which package is the best​ buy?

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Need on this geometry question. explain how you did it.

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) = .