12.5
1 decimetre is equal to 0.1 meter
Times that by 125 to get 12.5
Answer:
39364.
Step-by-step explanation:
I guess its an = 4*(3)^(n-1)
r = 3, a1 = 4 and n = 9
Sum of n terms = a1 * (r^n - 1) / (r - 1)
so S9 = 4 *(3^9 - 1) / (3 - 1)
= 4 * (19683 - 1) / 2
= 78728/2
= 39364.
Answer:
4/7, 1/4,1/2, 2/3
Step-by-step explanation:
Answer:
Find the sum of the series
∑(4x−5)
such that
1≤x≤7
.
answer is 77
Step-by-step explanation:
Answer:
Im not entirely sure this is right but
0 = tan^-1(20 ÷ 25)
0 ≈ 38.65°
hope i helped lol