Mathematics, 24.07.2019 04:30 21gl13826
Which equation represents a linear function? equation 1: y = 2x2 + 1 equation 2: y = 8x + 1 equation 3: y = 5x3 – 1 equation 4: y2 = 4x – 1
Answers: 1
Mathematics, 21.06.2019 19:30
Solve for x and y: 217x + 131y = 913; 131x + 217y = 827
Answers: 1
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, 22.06.2019 02:50
Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.
Answers: 2
Mathematics, 22.06.2019 03:00
What is the location of maximum over the interval [-3,1.5] for the graphed function?
Answers: 1
Which equation represents a linear function? equation 1: y = 2x2 + 1 equation 2: y = 8x + 1 equat...
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