Answer:
Total distance covered: 60x8 = 480
Speed needed to cover distance of 480 km in 6 hrs = 480/6 = 80 km/hr.
initial velocity : 60 km/hr.
Train needs to run faster with speed of 20km per hour to achieve same distance in 6 hrs.
Step-by-step explanation:
Answer:
Step-by-step explanation:
48.75
Answer:
r = 3.95 ft
Step-by-step explanation:
Volume of cone = = 246 ft³
246 =
r² =
r =
r = 3.95 ft
You have to first make like terms
**you want the denominator to be 21
Answer:
8i + 4
Step-by-step explanation:
Add/subtract like terms:
7 - 3
= 4
-4i - (-12i)
-4i + 12i
= 8i
Add these together:
8i + 4
So, the simplified expression is 8i + 4