Over the weekend , Rachel and Morgan drove to Chicago to go shopping . Now theyre preparing to go home . Morgan needs gas for her jeep, which gets 30 miles per gallon for gas mileage. When she stops at the gas station, she already has 7 gallons of gas in her tank. She buys more gas for $1.60 per gallon.

Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions.length: feetwidth: feet

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

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) = .