Answer:
slope=17.63
Step-by-step explanation:
the eq. of line in slope intercept form is y=mx+c
where m is the slope and c is y intercept.
comparing
m=17.63
Since BD is the angle bisector of ∠ ABC,
∠ ABD = ∠ CBD --- (1)
Now, in triangles Δ ABD and Δ CBD,
BD = BD (common side)
∠ ABD = ∠ CBD from (1)
AB = BC (Given)
Hence, Δ ABD ≅ Δ CBD (SAS Rule).
Answer:
0.04444444444
Step-by-step explanation:
Answer:
a) 
b) First we need to calculate the variance given by this formula:

And the deviation would be:

c) 
And using the cdf we got:

d) 
Step-by-step explanation:
For this case we define the random variable X who represent the customers charge, and the distribution for X on this case is:

Part a
For this case the average is given by the expected value and we can use the following formula:

Part b
First we need to calculate the variance given by this formula:

And the deviation would be:

Part c
For this case we want to find the percent between 600 and 889, so we can use the cumulative distribution function given by:

And we can find this probability:

And using the cdf we got:

Part d

And using the cdf we got:
