Answer:
90 inches
Step-by-step explanation:
The perimeter of the inscribed triangle is 1/2 that of the enclosing triangle. So, the total of perimeters is ...
(3·16 in)(1 +1/2 +1/4 +1/8) = (48 in)(15/8) = 90 inches
Answer:
81
Step-by-step explanation:
1st History test: 73
2nd History test: 77
3rd History test: 81
4th History test: 85
5th History test: 89
73+77+81+85+89 = 405
405/5 = 81
Answer:
here with me
Step-by-step explanation:
Answer:
an = 6 (1/4)^(n-1)
Step-by-step explanation:
We're given the first term, a₁ = 6.
The common ratio is a term aₓ divided by the previous term aₓ₋₁.
aₓ = 1/4 aₓ₋₁
aₓ / aₓ₋₁ = 1/4
r = 1/4
Therefore:
an = 6 (1/4)^(n-1)
Your answer is correct, good job!