Pls help my test is timed!!Which of the following scatterplots do not show a clear relationship and would not have a trend line? x
ຍ,
1
05
5
15
15
4+
2
225
3+
25 225
2+
2
15
1
05
0.75
0.75
1
X, Y,
1 25
15 35
5
4
..
o
2
425
3
25
425
2+
2
25
1 +
05
479
075 35

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

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) = .

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?