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
skelet666 [1.2K]
3 years ago
6

Use the equation P(A or B)= P(B)-P(A and B) to find the missing value below.

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
6 0

Answer:

P(B) = \frac{7}{8}

Step-by-step explanation:

Given

P(A or B)= P(B)-P(A and B)

P(A)=1/3

P(A and B)=1/8

P(A or B)= 3/4

Required

Find P(B)

To find P(B), all we need to do is to substitute values of P(A or B) and P(A and B) in the given equation.

This goes thus;

P(A or B) = P(B) - P(A and B) becomes

\frac{3}{4} = P(B) - \frac{1}{8}

Make P(B) the subject of formula

P(B) = \frac{3}{4} + \frac{1}{8}

Take L.C.M

P(B) = \frac{6 + 1}{8}

Add fractions

P(B) = \frac{7}{8}

From the workings above, the value of P(B) using the given equation is \frac{7}{8}

You might be interested in
What is equivalent to the square root of -27
lions [1.4K]
For the square root of a negative number, you would have to get into imaginary numbers. If you haven't learned about it yet, then the answer would be no real solutions. But if you have, here's how to solve it:

First, identify that 9 x 3 = 27. To after taking the square root, you will get 3√3 (Since the square root of 9 is 3 and there's no square root of 3, so leave it in the √)

However, since it is a negative number, you will have to include the letter i in the answer. i represents the imaginary part of it since you can't have a negative number in the square root.

So your answer will look like 3i√3.
3 0
3 years ago
The solution to the system is (3,4):<br> 3x – 2y = 1<br> 4y = 7+3x<br> Pizz help mee
Marina86 [1]

Answer:

(3,4) is the solution of both equations.

Step-by-step explanation:

The given equations are :

3x – 2y = 1 ....(1)

4y = 7+3x

4y-3x = 7 .....(2)

Put x = 3 and y = 4 in equation (1).

3(3) – 2(4) = 9-8

= 1

So, (3,4) is the solution of the equation (1).

Again put x = 3 and y = 4 in equation (2).

4(4)-3(3) = 16-9

= 7

Hence, (3,4) is the solution of both equations.

4 0
2 years ago
When planning for a party, one caterer recommends the amount of meat be at least 2 pounds less than 1/3 the total number of gues
ehidna [41]

Answer:

The graph in the attached figure

Step-by-step explanation:

Let

x-----> the total number of guests

y -----> the amount of meat

we know that

The inequality that represent this situation is equal to

y\geq \frac{1}{3}x-2

Note The inequality is "greater than or equal" because the given statement say "at least"

The solution of this inequality is the shaded area above the solid line y=\frac{1}{3}x-2

The slope of the solid line is positive

The y-intercept of the solid line is -2  

The x-intercept of the solid line is 6

therefore

The graph in the attached figure

Remember that

The values of x an y cannot be a negative number

5 0
3 years ago
Read 2 more answers
Bag a contains 3 white marveled and 2 marbles bag b contains 6 white marbles and 3 red marbles a person draws one marbles from e
bulgar [2K]

|\Omega|=5\cdot9=45\\|A|=3\cdot6=18\\\\P(A)=\dfrac{18}{45}=\dfrac{2}{5}

6 0
3 years ago
on november 14, 1993, francisco feraras read a record depth for breath held diving. during the dive, experienced a pressure of 2
Arlecino [84]
31 i think is right...

7 0
3 years ago
Other questions:
  • Please explain how and give the answer!
    14·2 answers
  • Find the value of angle L
    12·1 answer
  • Answer the picture please
    8·1 answer
  • Which name gives the most information about the shape below?
    13·1 answer
  • Using the properties of equality, find the value of x in the equation below.
    9·1 answer
  • Report your TWO scores for The Property of Numbers and Number Sets in fractional form.
    9·1 answer
  • I need to know these two answers
    11·1 answer
  • Kira bought 6 bags of popcorn for 15.36 how much would he pay for 4 bags
    8·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST AND MY NUMBER
    11·2 answers
  • a square flower garden in Samantha's backyard has an area of 100 square feet how much fencing will she need to enclose the flowe
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!