Answer:
Isosceles trapezoid
Step-by-step explanation:
Plotting the points show us that this shape is at least a trapezoid, by the fact that only one pair of parallel sides.
To show that it is isosceles is done by finding the lengths of the diagonals, which takes quite long, but here, it is very clear that the two non-parallel sides are congruent, and the parallelogram is perfectly symmetrical.
Answer:
(0,2)
Step-by-step explanation:
The solution would just be where these two functions cross, which is at the point (0,2) in this case.
Answer:
0.6
Step-by-step explanation:
Answer:
The expected number of keys she will try before she opens the door is 4.5.
Step-by-step explanation:
A woman has eight keys on a key ring, one of which fits the door she wants to unlock.
Each of them is equally as likely to be the one to work, which means that this situation is represented by an uniform distribution with lower bound and upper bound .
Find the expected number of keys she will try before she opens the door.
The expected value of the uniform distribution is given by:
Considering , as is the case in this exercise:
The expected number of keys she will try before she opens the door is 4.5.
Answer:
it's probably be 93690 I'm probably wrong