60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. What is the probability that t
1 answer:
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Answer:
John is running faster.
Step-by-step explanation:
Given that:
Average Speed of Anne = 6 miles per hour
Speed of John can be represented in the table below:
To find:
Who is running faster of the both i.e. Anne and John?
Solution:
Here, to find the faster runner we can compare the average speed of both the runners.
We are given that, average speed of Anne = 6 miles per hour
We will have to calculate the average speed of John to find the faster runner.
<em>Average speed</em> can be calculated by dividing the total distance traveled with the total time taken.
Total distance traveled by John = 11.5 - 1 = 10.5 miles
Total time taken by John = 1.5 hours
Average speed of John =
Clearly Average speed of John is greater than that of Anne's.
Therefore, <em>John runs faster</em>.
Answer:
No she isn't. The value of is
Step-by-step explanation:
We know that all quadratic equation can be written in the following way :
(I)
Where and
are real numbers.
I will attach a drawing with the quadratic graph to understand the situation.
We know by looking at the drawing and analyzing it that the parabola passes through the points : and
because we put our coordinates origin there.
because that's where the golf hole is.
And because we know that its highest point reaches 80 feet up in the air at the middle of the distance between its roots (property of a negative parabola).
Finally, we work with the three points and the equation (I) in order to find the values of and
⇒
The parabola passes through ⇒
⇒
⇒
The parabola passes through ⇒
⇒
(II)
The parabola passes through ⇒
⇒
(III)
Now if we use (III) in (II) ⇒
⇒
Finally the equation of the parabola is
Where the value of is
