Answer:
C
Step-by-step explanation:
Using Pythagoras' identity in right triangle BPO
with PB = 4 ( half of AB ) and OB = 5 ( radius of circle )
OP² + 4² = 5²
OP² + 16 = 25 ( subtract 16 from both sides )
OP² = 9 ( take the square root of both sides )
OP = = 3
Write out 5t^2 3t 5t^2
-------- . Invert --------- and multiply ---------- by the result:
8x^2 (x^2) 8x^2
5t^2
multiply ---------- by the result: 5t^2 5*x^2 25 t^2 x^2
8x^2 ------- * --------- = ----------------
8x^2 3t 8x^2 (3t)
Reducing this, we get 25t
-------
24x
The answer is 135 feet in 15 seconds I think
Answer:
The duration of the randomly selected class is 52.6 minutes.
Step-by-step explanation:
The random variable <em>X</em> is defined as the duration of a professor's class.
It is provided that, .
The pdf of <em>X</em> is:
It is provided that the probability that the duration of the class is longer than <em>c</em> number of minutes is 0.468.
That is, P (X > c) = 0.468.
Compute the value of <em>c</em> as follows:
Thus, the duration of the randomly selected class is 52.6 minutes.