![alyssamiller401](/avatars/16188.jpg)
alyssamiller401
20.09.2020 •
Mathematics
This is a test a serious grade
Solved
Show answers
More tips
- C Computers and Internet IMHO: What is it, why is it important, and how to use it?...
- H Health and Medicine How to Calculate Your Ideal Weight?...
- S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
- P Philosophy How to Develop Extrasensory Abilities?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
Answers on questions: Mathematics
- M Mathematics CAN SOMEBODY ANSWER SOME OF MY MATH QUESTIONS I POSTED ALREADY?...
- M Mathematics 4 ( x2 + 1 /x 2 ) – ( x + 1/ ) = 60...
- M Mathematics PLEASE HURRY IM ON AN EXAM ON EDGNUITYA composite figure is divided into two congruent trapezoids, each with a height of 4 cm. A.32cm2 B.40cm2 C.64cm2 D.80cm2...
- M Mathematics I need help y+5 8 plzz...
- M Mathematics 3. One end of a ladder of length 5m slides down a vertical wall. When the upper end of the ladder is 3m above the ground, it has a downwards velocity of 0.5m/s. Find the rate at...
- M Mathematics Another painting has length : width ratio approximately equal to the golden ratio (1 + sqrt 5) : 2. Find the length of the painting if the width is 34 inches?...
- M Mathematics Which of the following angles are supplementary? A. A and E B. A and D C. A and C D. E and H Which angles are congruent to angle B? A. A and D only B. C only C. C, G, and F only....
- M Mathematics What’s the correct answer for this?...
- M Mathematics Analyze the zeros of Ax)= x* - 3x– 2x2 + 3x - 5. Determine the number of complex zeros. 2 B.4 A.2 C.1 D.4...
- M Mathematics A line passes through the point (2,-2) and is parallel to the line y = 3x + 4. What is its equation? 3 points y = 3x - 8 8x + 3y = 23 5x + y = 23 y = 8x - 3 Other:...
Ответ:
B. MP and PM
Step-by-step explanation:
A line segment has two endpoints so the second answer is correct
Ответ:
P(Y-X>L/3)=7/9
Step-by-step explanation:
We know that X is uniformly distributed over (0, L/2) and Y is uniformly distributed over (L/2, L).
We know that:
f(x,y)=f(x)·f(y)=\frac{1}{L/2}·\frac{1}{L/2}=4/L²
Therefore, the probability is
P(Y-X>L/3)=∫∫ f(x,y) dx dy
P(Y-X>L/3)=∫∫ 4/L² dx dy
We conclude that is
P(Y-X>L/3)=1-P(Y-X≤L/3)
We know that for the region (0, L/2)x(L/2, L) where is satisfied Y-X≤L/3
is a right triangle with bases x∈(L/6, L/2) and y∈(L/2, 5L/6).
We calculate the area of that triangle:
p=1/2 · (L/3)²= L²/18
Now, we have
P(Y-X≤L/3)=4/L² · L²/18=4/18=2/9
Therefore, the probability is
P(Y-X>L/3)=1-P(Y-X≤L/3)=1 - 2/9
P(Y-X>L/3)=7/9