Answer:
3
16 + 25 = 49
1
a^2 + b^2 = c^2
4
41 ≠ 49
2
4^2 + 5^2 = 7^2
Step-by-step explanation:
Answer: 15 1/2
Step-by-step explanation: There are two 1/2 s so 1/2 + 1/2 is 2/2 or 1 whole. Next is 1. There are 4 ones. 1+1+1+1 = 4. There is one 1 1/2. There are two 2. 2+2 is 4. There are two 2 1/2 so 2 1/2 + 2 1/2 is 4 2/2 which is 5. Now you have to add all the answers together. 1 +4+ 1 1/2 +4+5 which is 15 and 1/2. 15 1/2 is the answer.
Answer: 20.2 mph
Step-by-step explanation:
Given
Train travels 10.1 miles in half an hour i.e.
Distance 
time 
we know, 
Insert the values

0.5, 0.05 is 1/10 the value of 0.5
4=4 6=5 7=9 8=4 9=2 10=8 11=3 12=9