Answer:
HI
Step-by-step explanation:
Answer:
x=15.58
Step-by-step explanation:
18^2 - 9^2=
= 15.58
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Answer:
400
Step-by-step explanation:
Answer:
<em> n = 13 </em>
Step-by-step explanation:
=
+ (n - 1)d
= 3 + 7(n - 1) (for the first AP)
= 63 + 2(n - 1) ( for the second one)
3 + 7(n - 1) = 63 + 2(n - 1)
3 + 7n - 7 = 63 + 2n - 2
5n = 65
<em>n = 13</em>