Answer:
an = 12 -7(n-1)
an = 19-7n
Step-by-step explanation:
The explicit formula for an arithmetic sequence is
an = a1 +d(n-1) where a1 is the first term and d is the common difference
a1 =12
We find d by taking the second term and subtracting the first term
d = 5-12
d = -7
an = 12 -7(n-1)
We can simplify this
an = 12 -7n+7
an = 19-7n
Answer:
130 ft²
Step-by-step explanation:
It is 8300 cause 5 is bigger than 2 so 83 and hen 00 : 83000
Answer:
79
Step-by-step explanation:
64 percent is out of 100 which is 64/100 which simplifies down to 16/25 I believe