The answer to 19b is 35
i’m sorry i don’t know part A
Answer: 15
Step-by-step explanation:
12^2 + 9^2 = 225
square root of 225 = 15
Summaation of a sequence
or see a smaller scale
from 1 to 10
notice
1+10=11
2+9=11
etc
5+6=11
10/2=5
there are 5 pairs
5*11=55
so
1 to 100
1+100=101
2+99=101
...
50+51=101
100/2=50
there ar 50 pairs
50 times 101=5050
the sum is 5050
Answer:
29/3
Step-by-step explanation:
Cauze 3 × 9 + 2 = 29/3
The denominater will be the same
