Answer:
5.9
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
- u·(u−v)+v·(v−u)
- u^2 - uv + v^2 - vu
- u^2 - 2uv + v^2
- (u -v)^2 OR (v-u)^2
- (4.3 - 2.3)^2
- 4
Answer: 1: 7 | 2: 2 | 3: 729 | 4: 2 | 5: 100 | 6: about 140
Hope this helps :)
Step-by-step explanation:
1. 28 x 3/4 = 21 kg
2. 1 hr = 60 mins
=》 1/4 hr = 60/4 = 15mins
