Hello :
the sum is arithmetic secquence of common -diff is :
(-7)-(-5) =(-5)-(-3) = (-3)-(-1) =-2 = d
the first term is : a1 = -1
<span>the formula of the sum : S= (n/2)(a1 +an)
n is number of term an = a1+(n-1)d</span>
Well I can't see the picture clearly but what I can.n see is that you need f×2,360 and you also need to find what f is then go on from their
Frist x =7.14
The second one =16.5
Answer:
Step-by-step explanation:
Given that an ice cream shop has 25 different flavors of ice cream.
a) the number of different 3-scoop ice cream cones that are possible if all three scoops are different
=25P3 (since order matters as shapes or colours would be different so different order will give different type)
= 13800
b) the number of different 3-scoop ice cream cones that are possible if all three scoops are different
=25C3 (since order does not matter here)
=2300
c) the number of different ice cream cones if all three scoops could be the same, and the order of the
flavors is important
= when all three sceeps couldbe the same we can say that these are with replacement. Neither permutation nor combination
Each scoop can be any one of the 25
no of ways