Answer:
14 yds
Step-by-step explanation:
To find the perimeter, we add up all the sides
P = s1 + s2+ s3 + s4
38 = 5.8+7+11.2 + s4
Combine like terms
38 = 24+s4
Subtract 24 from each side
38-24 = 24-24 +s4
14 = s4
The 4th side is 14 yds
Given that
and
, if
is an arithmetic sequence, then the common difference between successive terms is
.
You then have
So the explicit formula for the
th term is
Answer:
1) B.
2) A.
Step-by-step explanation:
Answer : -3.3b + 3.5x - 84.82
(-14.2b - 97.35) + (10.9b + 12.53 + 3.5x)
= (-14.2b + 10.9b) + (3.5x) + (-97.35+12.53) ||| COMBINE LIKE TERMS
= -3.3b + 3.5x - 84.82