Which of the quadratic functions below has exactly one x-intercept?
y = x2 β 9
y = x2 β 6x +...
Mathematics, 17.09.2021 14:50, yofavrayne
Which of the quadratic functions below has exactly one x-intercept?
y = x2 β 9
y = x2 β 6x + 9
y = x2 β 5x + 6
y = x2 + x β 6
Answers: 3
Mathematics, 21.06.2019 19:50, Roshaan8039
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 22:00, goodperson21
White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.
Answers: 2
Mathematics, 21.06.2019 23:30, liaholmes8
Walking at a constant rate of 8 kilometers per hour, juan can cross a bridge in 6 minutes. what is the length of the bridge in meters?
Answers: 1
Mathematics, 29.10.2020 16:10
Mathematics, 29.10.2020 16:10