Which of the following ordered pairs could be placed in the table below and still have the relation qualify as a linear function? (4 points) Input
(x) Output
(y)
−5 7
−3 15
−1 23
? ?

What is the average diastolic blood pressure for adults

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) = .

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?