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
I do not understand what your asking. Tell me the question.
Answer:
202.
Step-by-step explanation:
So we know that there was 45 people who showed up to the last game, and they want 4.5 times that amount for the next game. So when we here the word times, what comes to mind? Multiplication. So that means we have to times 45 by 4.5, and we get 202.5 . And the school at least wants 202 people to attend the next game because when I hear at least I think round down. (But if you have to round up it would be 303.)
Answer:
solution given:
For triangle
side1=9ft
side2=10ft
base[b]=11ft
height[h]=7.7ft
and for rectangle
length [l]=3ft
wide [w]=9ft
Now
total surface area=lateral surface area +2curved surface area
=perimeter of triangle×length +2area of triangle
=(9+10+11)×3+2×1/2×2(½×b*h)
=90+11×7.7
=174.7
=175ft²is a required answer.
