You need to make sure that the line also is a line of symmetry
Answer: 0.55567
Step-by-step explanation:
Given : A certain brand of refrigerator has a useful life that is normally distributed with mean 10 years and standard deviation 3 years. The useful lives of these refrigerators are independent.
i.e.
Let and are two randomly selected refrigerator's life whose sum will exceed third selected refrigerator .
So that,
Mean
Standard deviation =
Z-score :
Now , The probability that the total useful life of two(i..e n=2) randomly selected refrigerators will exceed 1.9 times the useful life of a third randomly selected refrigerator would be :-
Hence, the required probability is 0.55567.
Answer:
2 Sides of the Square, 1 complete circle.
Step By Step:
I presume you need to take Circumference of the circle, and the 2 side lengths of the square making up the outer track.
Formulas to use:
Circle Circumference: 2xPixRadius or 2PiDiameter.
Square: Measure the Side Lengths.
.44 should be the right answer
Least to Greatest: -3.05 1/2, -.875 1/3, & .40