2 years ago

Help pls 2x^2+5x+3x+1

Mathematics

1 answer:

Oxana [17]2 years ago

4 0

Answer: 2x^2+8x+1

Step-by-step explanation:

5x+3x=8x

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The probability of event A is x, and the probability of event B is y. If the two events are independent, which of these conditio

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If two events are independent, then

$Pr(A\cap B)=Pr(A)\cdot Pr(B)$ .

Use formulas for conditional probabilities:

$Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)},\\ \\ Pr(B|A)=\dfrac{Pr(A\cap B)}{Pr(A)}$ .

For independent events these formulas will be:

$Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)}=\dfrac{Pr(A)\cdot Pr(B)}{Pr(B)}=Pr(A),\\ \\ Pr(B|A)=\dfrac{Pr(A\cap B)}{Pr(A)}=\dfrac{Pr(A)\cdot Pr(B)}{Pr(A)}=Pr(B)$ .

Now in your case $Pr(A)=x,\ Pr(B)=y$ and $Pr(A|B)=x,\ Pr(B|A)=y, Pr(A\cap B)=x\cdot y$ .

This shows that the only correct choice is A.

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3 years ago

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With digits 8, 5, and 6, an odd number must end in 5.
So far, we have _ _ 5.
The 8 is in the hundreds place.
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3 years ago

Define measure of an angle

Alexandra [31]

Answer:

this is the define of measure of an angle

Step-by-step explanation:

hope it help you