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masya89 [10]
3 years ago
7

According to the general equation for conditional probability, if P(A^B)=4/7 and P(B)=7/8, what is P(A B)?

Mathematics
2 answers:
Murrr4er [49]3 years ago
7 0
D.32/49 is your correct answer
creativ13 [48]3 years ago
4 0

Answer: P(A|B)=\dfrac{32}{49}

Step-by-step explanation:

Since we have given that

P(A∩B)= \dfrac{4}{7}

and P(B) = \dfrac{7}{8}

We need to find P(A|B).

As we know the formula for "Conditional Probability ":

P(A\mid B)=\dfrac{P(A\cap B)}{P(B)}\\\\P(A\mid B)=\dfrac{\dfrac{4}{7}}{\dfrac{7}{8}}\\\\P(A\mid B)=\dfrac{4\times 8}{7\times 7}\\\\P(A\mid B)=\dfrac{32}{49}

Hence, P(A|B) = \dfrac{32}{49}

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Step-by-step explanation:

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2 years ago
The vector v⃗ in 2-space of length 3 pointing up at an angle of π/4 measured from the positive x-axis.
allsm [11]

The vector v in 2-space of length 3 pointing up at an angle of π/4 measured from the positive x-axis is: (3/√2, 3√2) and The vector w in 3-space of length 1 lying in the yz-plane pointing upward at an angle of 2π/3 measured from the positive y-axis is: (0, -1/2, √3/2).

<h3>Vector</h3>

a. Vector (v)

Vector (v)=v (cos Ф, sin Ф)

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Hence:

Vector=3(cos π/4, sinπ/4)

Vector=(3/√2, 3√2)

b. Vector w:

Vector w=1(0, cos 2π/3, sin2π/3)

Vector w=(0, -1/2, √3/2)

Therefore the vector v in 2-space of length 3 pointing up at an angle of π/4 measured from the positive x-axis is: (3/√2, 3√2) and The vector ws: (0, -1/2, √3/2).

The complete question is:

Resolve the following vectors into components:

a. The vector v in 2-space of length 3 pointing up at an angle of π/4 measured from the positive x-axis.

(b) The vector w in 3-space of length 1 lying in the yz-plane pointing upward at an angle of 2π/3 measured from the positive y-axis.

Learn more about vector here:brainly.com/question/25705666

#SPJ1

5 0
2 years ago
If f(x) = 3^x + 10x and g(x) = 2x - 4, find (f + g)(x)
kow [346]

Answer:

The Answer is D

Step-by-step explanation:

All you do is add both equations 3^x+10x+2x-4

then you add the like varibles which is 10x+2x=12x

So, the answer is 3^x+12x-4

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3 years ago
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3 years ago
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Three students were working on 630,000÷700 in math class.
stealth61 [152]

Step-by-step explanation:

a) Desiree is correct 630000÷70=900

6 0
3 years ago
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