Answer:
C) Uniform distribution
Step-by-step explanation:
An uniform probability is a case of probability in which each outcome is equally as likely. In this case, the probability of producing a defective light bulb from a production line is the same over an interval of 90 minutes, so the correct answer is C.
We can calculate the probability.
Uniform probability distribution
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The probability that we find a value X lower than x is given by the following formula.

For this problem, we have that:
Uniformily distributed over a 90 minute interval, that is, between 0 and 90, so
and
.
We want to find 
The answer is -10/3 your answer
Answer:0
Step-by-step explanation:
(2^28•5-5•19^-2)•(5^2 over 2^3)•2^28
(0-0)•((5x5) over (2x2x2))•2^28
0•(25/8)•2^28=0
the answer is 63 because 63*2=126 and 126+54=180 and all triangles add up to 180