N/8, 4p, b+14, 90x, -16, 24-k, 3(w), 1+q, 13/z, 45+c, w-8
Only you have to multiply by a number the numerator and denominator.
2n/5n; n∈N (N=1,2,3,....;)
Therefore:
if n=2 ⇒2*2/5*2=4/10
if n=3 ⇒2*3/5*3=6/15
if n=4 ⇒2*4/5*4=8/20...
therefore, 4/10 ,6/15, 8/20
The probability that a Cd drive will fail is 1.6 %.
<h3>What is probability?</h3>
Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.
Given,
Cd tested = 250 read operations
Cd fails = 4 times
probability = 
here we have,
Probability = 4/250
= 0.016
= 0.016 × 100
= 1.6 %
To learn more about probability from the given link
brainly.com/question/9953973
#SPJ4
Answer:
BC = 88.88
Step-by-step explanation:
Comment.
This looks like an example of the cos law.
Givens
AB = 100 m
<A = 60 degrees
AC = 70 m
Cos(60) = 1/2
BC = ?
Formula
BC^2 = AB^2 + AC^2 - 2*AB*AC * Cos(60)
Solution
BC^2 = 100^2 + 70^2 - 2*100*70 * 1/2 1/2 and 2 cancel out
BC^2 = 10000 + 4900 - 7000
BC^2 = 7900 Take the sqr root of both sides
√BC^2 = √7900
BC = 88.88