Answer:
B
Step-by-step explanation:
given the first 3 terms of the geometric sequence - 4, 20, - 100
with r =
=
= - 5
the n th term formula ( explicit formula ) is
=

here r = - 5 and
= - 4, hence
= - 4
with n ≥ 1
Answer:
Parallel
Step-by-step explanation:
Answer:
so the answer is 5
Step-by-step explanation:
the equation will be for this is
7x + 20 = 55
7x = 55-22
7x = 35
x = 35÷7
x=5
Answer:
13
Step-by-step explanation:
x*x=12*12+5*5
x*x=144+25
x*x=169
x=13
Answer:
∠g = 142°
Step-by-step explanation:
∠g = 180 - 38 = 142°