Hey there,
Angle LKM is = 180 - 65 - 90
= 25 degrees
Hope this helps ^_^
~Top
Answer:
a)20$
b)46,1$
c)0,3336
d)No concerns
Step-by-step explanation:
A) To find expected difference of cost of medical care for dogs and cats we can simply subtract average costs of cats and dogs.

Expected difference will be 20$.
B) To find the standard deviation of that difference, we need to square deviations and add them and square root it again.

Expected difference will be 46,1$.
C)We need to find the Z value to find the probability of more expensive dogs than cats in a Vet vise.
Z value of the function is -0,434
From the Z table that you can find at the attachment. The probability is %33,36 or 0,3336
D) This is a subjective part. I don't have any concerns
Answer:
the correct answer is A. -12
c is your solution because the point is at 2 on the x-axis and -3 on the y-axis