Sum of the terms of the series is
Sn = n/2 ( a1+an )
we have n= 6 , a1= 17, an = 57
so Sn = 6/2 ( 17+57) = 3(74) = 222
120 is the answer because your find the area
Answer:
I think 9 is the answer
Step-by-step explanation:
n + 6 greater-than-or-equal-to 15
n greater-than-or-equal-to 15 - 6
n greater-than-or-equal-to 9
n + 5 less-than 15
n less-than 15 -5
n = 10
So, less than 10 and greater-than-or-equal-to 9
n = 9 (I think so)
I hope this helps a little.
Answer:
7.34846923
Step-by-step explanation:
Answer:
Their combined height is 108 inches
Step-by-step explanation:
1 ft = 12 inches
12 * 4 = 48 inches
48 + 6 = 54 inches
54 * 2 = 108 inches
