Answer:
Step-by-step explanation:
- (a) |6| - 9 = 6 - 9 = -3
- (b) |6 - 9| = |-3| = 3
Answer:
a(4) = -17
Step-by-step explanation:
hello :
use : a(n) =a(n-1) -5
a(n) -a(n-1) = -5 (common differnce for arithmetic sequence)
the ni-eme term is : a(n) = a(1) +(n-1)d d = -5 and a(1) = -2
so : a(n) = -2 +(n-1)(-5)
a(n) = -5n+3
when : n= 4 a(4) = -5(4)+3 =-17
Willard F. Libby used Geiger M<span>üller tubes to date artifacts with known ages. </span>
E is equal to 2.71828
2(2.71828) + 204 = 209.44
