18alewis
04.08.2019 •
Mathematics
How much amount of 1.5 inches flat steel i will need to frame a fence if the length is 85 feet and the height is 12.5 feet
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Ответ:
85 x 12.5= 1062.5
Now you need to divide.
1062.5/ 1.5= 708.33333 Infinite decimal.
Round to the nearest whole.
708
So you will need about 708 pieces of flat steel.
Ответ:
It is the first choice.
Step-by-step explanation:
This is a sequence where
the next term is obtained by adding 6.
first term = -9 + 6(0) = -9
second term = -9 + 6(1) = -3
third term = -9 + 6(2) = 3
4th term = -9 + 6(3) = 9
and 81 = -9 + (6*15).
So the answer is Sigma (-9 + 6n) from n= 0 to n = 15.