Answer:
a) 0.05
b) 0.9826
c) 0.000039308
Step-by-step explanation:
a) 
b) For two minutes, the mean is doubled, hence it is 6. In order to calculate the probability of al least two calls arriving, we calculate first the probability of the complementary event: At most 1 call will arrive. For that probability, we need to sum the probabilities of 0 and 1.


Hence,

c) For five minutes the mean is 15. We need to sum the probabilities of 0, 1 and 2.


As a result,

Practically 0
Answer:

Step-by-step explanation:
Let the coordinate of the points W, V and R are
and
respectively.
The coordinate of the section point,
which divides the line joining the two points
and
in the ration
is
and
.
The given ration is, 

.
The exact point can be determined by putting the value of the exact coordinate in the above-obtained formula.
Answer:
C
Step-by-step explanation:
The y intercept is 2 and if you do the rise/run you'll find that the slope has to be 1/2
this means our equation has to be
1/2x+2
x=6x-2 This would be your answer, hope this helps if you need any further explanation feel free to let me know and I would be happy to help you out.
Answer:
Width
in
length
in
Step-by-step explanation:
let width
painting is
in taller than it is wide
length 
Perimeter of rectangle
(length+width)
Perimeter of painting 

width
in
length
n