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scoundrel [369]
3 years ago
9

A box contains 2 green and 3 white balls. A ball is selected at random from the box. If the ball is green, a card is drawn from

a deck of 52 cards. If the ball is white, a card is drawn from the deck consisting of just the 16 pictures.
(a) What is the probability of drawing a king?
(b) What is the probability of a white ball was selected given that a king was drawn?
Mathematics
1 answer:
Kryger [21]3 years ago
8 0

Answer:

a) \frac{47}{260}

b) \frac{3}{20}

Step-by-step explanation:

a) There are two ways of getting a king; picking a green ball and then picking a king from the deck of 52 OR picking a white ball then picking a king from the pictures only deck of 16

P(king) = \frac{2}{5} *\frac{4}{52} +\frac{3}{5} *\frac{4}{16} = \frac{47}{260}

b) P(white ball, given king)= \frac{3}{5}*\frac{4}{16} =\frac{3}{20}

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Is the given function continuous at x=1?
rusak2 [61]

Answer:

The answer is "Option C".

Step-by-step explanation:

Given:

\to f(x)=2x^2-3x+1\\\\when \ x=1\\\\\to f(1)= 2(1)^2-3(1)+1\\\\\to f(1)= 2(1)-3+1\\\\\to f(1)= 2-3+1\\\\\to f(1)=-1+1\\\\\to f(1)=0

That's why choice C is correct.

3 0
3 years ago
For their twentieth wedding anniversary, Richard and Sylvia had a party for several of their best friends. Things were going alo
kompoz [17]

Answer:

Richard is older

Step-by-step explanation:

We can set up an inequality for both statements.

Let r equal Richard's age and s equal Sylvia's age.

"I am older than my wife."

Since Richard is speaking, the inequality would look like this:

r > s

This means Richard is older than Sylvia.

"I am younger than my husband."

Since Sylvia is speaking, the inequality would look like this:

s < r

This means that Sylvia is younger than Richard.

We can flip one inequality to "see" them from the same perspective.

Let's use s < r

To make it so that we can see the relationship from Richard's perspective, flip the entire inequality.

s < r

to

r > s

The inequality from the first quote is identical to this one!

Therefore, Richard is older than Sylvia.

8 0
3 years ago
Johan ran 36.25 miles in 5 hours. How many miles did he run every hour?
stira [4]
Johan ran 7.25 miles every hour for 5 hours
8 0
3 years ago
A suspicious monkey offers you and your classmates fruit to eat. As you consider eating the fruit he tells you that 60 out of 12
Georgia [21]

Answer

4.84%

Step-by-step explanation:

trust me

3 0
3 years ago
Solve five and three sixths minus two and one third.
CaHeK987 [17]

Answer:

3 3/18

Step-by-step explanation:

5 3/6-2 1/3

We first need to turn our mixed numbers into fractions by multiplying the while number by the denominator, then adding the numerator. When we do this, 5 3/6 turns into 33/6 and 2 1/3 turns into 7/3. Now we have this:

33/6-7/3

Now we need to find the Least common multiple of the denominators in order to find our common denominator, which in this case is 6. 33/6 already has a denominator of 6, so we do not need to do anything to it. To give a denominator of 6 to 7/3, however, we must multiply by 2, giving us this:

33/6-14/6

Now we can subtract the numerators.

19/6

To turn this back into a mixed number, we divide 19 by 6, which gives us 3 with a remainder of 1. Therefore, our answer is 3 1/6. This is an equivalent fraction to the fourth answer, 3 3/18.

HTH :)

4 0
3 years ago
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