A bag contains 5 blue, 3 red, 6 green, 9 orange, and 20 black marbles. What is the ratio of the number of blue marbles to the nu
mber of marbles that are orange or green?
2 answers:
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The base of a cone is a circle.
The area of a circle is
.
Thus, the area of the base of a cone.
The derivation of the formula for the area of a circle involves a bit of calculus, but if you'd like, I can walk you through it.
The area of a circle is
Thus, the area of the base of a cone
The derivation of the formula for the area of a circle involves a bit of calculus, but if you'd like, I can walk you through it.
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.