B.40 if angles are corresponding that means they add up to be 90 degrees and 50 plus 40 equals 90
Answer:
The probability that the time between the next two calls is between 3 minutes and 7 minutes is 0.2442.
Step-by-step explanation:
Let <em>X</em> = time between calls made to Amazon's customer service.
The average time between calls is, <em>β</em> = 10 minutes.
The random variable <em>X</em> follows an Exponential distribution with parameter 
The probability distribution function of <em>X</em> is:

Compute the probability that the time between the next two calls is between 3 minutes and 7 minutes as follows:

Thus, the probability that the time between the next two calls is between 3 minutes and 7 minutes is 0.2442.
Perimeter = 179/12 feet
Length = 35/8 feet
Perimeter = (2 × Length) + (2 × Width)
2(35/8) + 2Width = 179/12 feet
2Width = 179/12 - 35/4 = 37/6
Width = 37/(2 × 6) = 37/12
Simplify to get;
Width = 3 and 1/12