Answer:
I'm not completely sure but if they want exponents for 6 * 6 * 6 then it should be 
Step-by-step explanation:
Answer: 5.5 seconds
Step-by-step explanation:
30=5/4 ×(-20) + 10t
30 =-25 +10t
10t=55
t=5.5seconds
The cord will first touch the corner of the building after 5.5secs
Answer: B
Step-by-step explanation:
Answer:
3.81972
Step-by-step explanation:
Surface area = 6 x 10^2
6 x 10^2
6 x 100
600m^2