Chapter 10

Section 10.1, page 102
 

19. a = 2, b = 3, c = 4.
 

Sections 10.3 and 10.4, page 112

21. (a) 101/100.

23. (a) The arithmetic mean is 2; the geometric mean is 

(b) a = 15, b = -20, c = 15, d = -6.

(c) The roots are equal, and so all equal to 1, since their arithmetic mean is the same as their geometric mean.
 
 

Wednesday, June 24, 1998