7+49n-63 that is the answer to the question
Answer:
The answer is option 5.
Step-by-step explanation:
The formula is V = 1/3×π×r²×h where r represnt radius and h is height. Given that the diameter of cone is 8 inches so the radius is 4 inches then substitute the value into the formula :

Let r = 4,
Let h = 12,


The answer is, y = -1/3 - 3
Average speed for Jaden’s train
= 130 km / (75/60) hours
= 130 km / 1.25 hours
= 104 km/h
Dani’s train travels from 15:15 to 18:30, which is 3 hours and 15 mins.
3 hours and 15 mins = 3.25 hours
Average speed of Dani’s train
= 312 km / 3.25 hours
= 96 km/h
Difference
= 104 - 96
= 8 km/h