In the first series, the summation applies to the whole (2n+3) inside
the parentheses, so the 3 gets summed up 5 times.
But in the second one, the summation only applies to the 2n , so
the 3 is only added after the summation is finished.
The difference between five 3s the first time and one 3 the second time
is your 12 .
Answer:
Step-by-step explanation: Ok so it is backwerd to pas would be nagitv
Answer:
Step-by-step explanation:





Hope this helps!
-1 is greater then 1.05 then 1.05 then 1.55
so the answer is C
Answer: choice C) 19/60
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Explanation:
Add up the minute values: 19+4+37 = 60
We have a total of 60 minutes. Of that total, 19 minutes is dedicated to news.
Divide the two values (19 and 60) to get the fraction 19/60. We can't reduce from here so we leave it like that.