1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sweet [91]
3 years ago
5

Discuss the conditions under which P(A or B)= P(A) + P(B) is true

Mathematics
1 answer:
Andrews [41]3 years ago
4 0
That condition is true if P(A) and P(B) are independent of one another. For example, if I was pulling marbles out of a bag, if I am replacing the marbles back after I pull one out, then P(A or B) = P(a)+P(B).
You might be interested in
PLS HURRY DONT HAVE A LOT OF TIME!!! danny measured a house and its lot and made a scale drawing. the scale he used was 1 inch :
valkas [14]
10 inches because 40/4*1
6 0
2 years ago
Solve the system of equations below. <br> 5x + 2y = 9<br> 2x - 3y = 15
riadik2000 [5.3K]

Answer:

(3,-3)

y= -3

x= 3

Step-by-step explanation:

5x+2y=9

2x-3y=15

solve the equation

x=9/5-2/5y

2x-3y=15

substitute the value of x into an equation

2(9/5-2/5y)-3y=15

distribute

18/5-4/5y-3y=15

subtract -4/5 to -3

18/5-19/5y=15

subtract 18/5 from both sides

-19/5=57/5

divide both sides by -19/5

y= -3

substitute the value of y into an equation

x=9/5-2/5(-3)

distribute

x=9/5+6/5

add 9/5 to 6/5

x=3

--------

(3,-3)

--------

3 0
3 years ago
PLS HELP ASAP ILL GIVE BRAINLKEST THANKS
Arisa [49]

Answer:

(4,4)

Step-by-step explanation:

hope this help

4 0
3 years ago
Read 2 more answers
Solve the inequality 2x - 3 &lt; x + 2 ≤ 3x + 5. Show your work.?
mars1129 [50]
Add like terms and put x in the middle.
-3 < -2x + x - 3x ≤ 5 - 2
-3 < - 4x ≤ 3
Sign changed when divide by negative numbers
(3/4) > x ≥ (-3/4)
4 0
3 years ago
ben has 3 times as many guppies as goldfish. if he has a total of 20 fish, how many guppies does he have?
My name is Ann [436]
It will be 60 puppies.
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x in the equation 13 x minus 2 (8 + 5 x) = 12 minus 11 x?
    9·2 answers
  • The total cost f(x), in dollars, for renting a vacation house for x days is shown:
    9·2 answers
  • X/2-7=9 solve what “x” mean
    5·1 answer
  • treasury bills (t-bills) can be purchased from the U.S. Treasury department. You buy a t-bill for 981.60 that pays 1,000$ in 13
    11·1 answer
  • Rain falls steadily all day, dropping 2 inches of rain each hour. what does the graph look like
    10·2 answers
  • Ralph is arranging a wedding reception. He can spend no more than $8000. It costs $6000 to rent the hall and $25 to feed each gu
    15·1 answer
  • QUICK! TEN POINTS!! BRAINLIEST FOR WHOEVER GETS IT RIGHT!!!
    8·2 answers
  • Find the area and perimeter of a rectangle that has a length of (x + 24) and (x + 16). Show all work for full credit.
    15·1 answer
  • Which number line shows the solution to the inequality -2x-3&gt; -11
    14·2 answers
  • PLS HELP!!! 40 POINTS! How do you prove that two polygons are similar in geometry
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!