Factorise:2x^4+x^3-14x^2-19x-6
1 answer:
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Answer:
Erik's average speed exceeds the speed limit by 6.91 miles per hour.
Step-by-step explanation:
Let suppose that Erik travels at constant speed. Hence, the speed (), measured in miles per hour, is determined by following equation of motion:
(1)
Where:
- Distance, measured in miles.
- Time, measured in hours.
Please notice that a hour equals 60 minutes. If we know that and
, then the speed of Erik is:
Which is 6.91 miles per hour above the speed limit.
Answer:
About 113,097.34 units
Step-by-step explanation:
The volume of a sphere can be found with the equation V = πr³ when r is the radius.
V = πr³
V = π(30)³
V ≈ 113,097.34 units