3 years ago

Find the value of x (please help)

Mathematics

1 answer:

notka56 [123]3 years ago

5 0

Answer:

Step-by-step explanation:

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What is the equation for this word problem?:

Wittaler [7]

Answer:

equation: C = 15 - R

C = 15 - 7

C = 8

Step-by-step explanation:

Okay first of all stan the karl pfp

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Shaun climbed Mount Rushmore at a unit rate

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Step-by-step explanation:

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3 years ago

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

zzz [600]

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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4 years ago

Read 2 more answers

The heights of a certain type of tree are approximately normally distributed with a mean height

Makovka662 [10]

Let the height of the trees are h1,h2 and h3,
Then,we know that
Mean height=(h1+h2+h3)/3

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4 years ago

Calculate 0.82 + 0.35 ?

natima [27]

ANSWER

EXPLANATION

We want to add the two numbers:

0.82 + 0.35

Using the long addition method, we have:

0 . 8 2

+ 0 . 3 5

Start on the right hand side:

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2 years ago