The series in the form of arithmetic progression
The notation of A.P is a, a+d, a+2d.....
The summation notation is â‘
In this series a=3, d=7
Then the summation of A.P is â‘ = n/2(2a+(n-1)d)
=18/2(2*3+ (18-1)7)
= 9(6+17(7))
=9(6+119)
=9(125)
= 1125
Hence the total number of beads is 1125
Answer:
B) 5(-3) either way its telling you to multiply 5 by -3
50 minutes - 20 minutes = 30 minutes. Eros practiced for 30 more minutes than Jade.
Answer:
1. 146 2. 4
Step-by-step explanation:
9^2 * 2 - 4^2
81 * 2 - 16
162 - 16
146
2 * (10 - 2) / 2^2
2 * 8 / 4
16 / 4
4
Hope this Helps!!!
