Answer:
7580
Step-by-step explanation:
The formula for the sum of an arithmatic sequence is
,
where n = total number of terms (in this case 40)
= the first term (in this case 14)
and 
= the last term (we will need to find this)
to find the last term, we can use this formula:
where d is the difference between each term (in this case 9, because 23 - 14 = 9, and 32 - 23 = 9)
thus, 
= 14 + (40 - 1)9 = 14 + 39*9 = 14 + 351 = 365
plug this back into the first formula to get
Σ = 
(14 + 365) = 20(379) = 7580
Answer:
the answer is -> D. - 2x + 6
Answer:
c
Step-by-step explanation:
saya fikir jee cara tuu
I’m not sure about the answer, but my name is Jessica ✌
Here is the inequality you are describing:
10x+4≤25
Where x is the "number" you are describing.
