The answer is 9.48. also I rounded
Answer:
c
Step-by-step explanation:
Already took this test
Answer:
an = a(n-1) - 7
Step-by-step explanation:
the second term is smaller than the first term 7.
a20 = a19 - 7
a19 = a18 - 7
=> a20 = (a18 - 7) - 7
Then you can accumalate until a1
-> a20 = a1 - 19*7 = 86 - 19*7 = -47
T=2
t^2=4
4-4=0
is that right?
Answer:
1st one a^-1 , 2nd one a^b/a^c , 3rd one a^c/b^c
