Sn=sum of the n terms of the geometric sequence.
a= the first term
r=the common ratio
n=numbers of terms.
Sn=a[(1-r^n)/(1-r)]
In this case:
a=-3
r=a₂/a₁=15/-3=-5
n=9
S₉=-3[(1-(-5)⁹) / (1-(-5))=
S₉=-3(1+1953125)/6)=
S₉=-3(1953126/6)=
S₉=-3(325521)
S₉=-976563
Answer: A. -976563
Answer:
Is it Jose?
Step-by-step explanation:
Your username is Jose
Answer:
Step-by-step explanation:
Given
z = 119 + 120 i
Let 
Squaring both sides
Comparing real and imaginary part
Re(LHS)=Re(RHS)
...........................(1)
comparing Im(LHS)=Im(RHS)
120=2pq
Substitute q in 1
Let 
we take only Positive value because 
x=149.85
thus 
thus,
Answer:
The answer is 939
Step-by-step explanation:
If you divide 939 by 9 it equals 104 R3.
If you divided 939 by 2 it equals 469 R1
And if you divide 939 by 5 it equals 187 R4
Hope this helps!
