Answer:
The answer to your question is the last choice.
Step-by-step explanation:
The first column represents the x
The second column represents the y
The third column represents the z
The last column represents the independent term
The first line represents the first equation
The second line represents the second equation
The third line represents the last equation
From the previous information, we conclude that the answer is the last choice.
Remember
a/b time b/a=1
find 1x
(7/8)x=-2/3
multiply both sides by 8/7 to clea fraction
1x=-16/21
Answer:
The scale factor is 3
Step-by-step explanation:
6/2=3 (one of the triangles sides)
Answer:
1470 square feet
Step-by-step explanation:
15x10 =150
132×10=1320
total =1479
Answer:
The shape and rate parameters are
and
.
Step-by-step explanation:
Let <em>X</em> = service time for each individual.
The average service time is, <em>β</em> = 12 minutes.
The random variable follows an Exponential distribution with parameter,
.
The service time for the next 3 customers is,
<em>Z</em> = <em>X</em>₁ + <em>X</em>₂ + <em>X</em>₃
All the <em>X</em>
's are independent Exponential random variable.
The sum of independent Exponential random variables is known as a Gamma or Erlang random variable.
The random variable <em>Z</em> follows a Gamma distribution with parameters (<em>α</em>, <em>n</em>).
The parameters are:

Thus, the shape and rate parameters are
and
.