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lukranit [14]
2 years ago
9

A bag contains 4 blue marbles and 7 red marbles. Two marbles are randomly drawn without replacement. Find the probability of the

event ""the first marble is red and the second marble is blue""?
Mathematics
1 answer:
Kruka [31]2 years ago
3 0

Answer:

8/11

Step-by-step explanation:

In the given scenario was cannot calculate P(B) directly. As it depends on what happened first, by itself we don’t know what was drawn first. Thus it becomes a conditional probability question:

P( B | A ) ← reads as the probability of “B” happening “given that” “A” has already happened — in this case the probability that the second marble drawn is a blue marble given that the first was a red marble.

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A shirt cost $20 .the sale tax is 5%.how much is the sales tax what is her total cost for the shirt
ale4655 [162]
20 x.05 = 1
20 + 1 = $21
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3 years ago
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In the x-y plane, what is the y- intercept of the graph of the equation y=6 (x-1/2) (x+3)
Ivenika [448]

The y-intercept on the x-y plane is (0, -9).

<h3 /><h3>How to get the y-intercept?</h3>

To get the y-intercept we just need to evaluate in x = 0.

Here we have:

y = 6*(x - 1/2)*(x + 3)

Evaluating the given equation in x = 0 we get:

y = 6*(0 - 1/2)*(0 + 3) = -9

Then the y-intercept on the x-y plane is (0, -9).

If you want to learn more about y-intercepts:

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6 0
2 years ago
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Answer:

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7 0
4 years ago
A rectangular poster is 50 cm long and 25 cm wide. If 1 cm is approximately .4 inches What is the perimeter of the poster
gulaghasi [49]
It will be 600in or 150cm.
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3 0
3 years ago
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ICE Princess25 [194]
Let me see if I understand your question:

101=50-h

this would just be an equation with a variable: this variable is "h". Variable is an unknown value, like a name for "something".

so we could say that 101 equals 50 minus "something" and we call this something "h"

this is what 101=50-h "means"

as it happens, we can find out the value of this h:

we can subtract 50 from both sides of the equation:

101-50=50-50-h
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and multiply by (-1)
-51=h

so our h is equal to -51.

so...  does not actually mean here 49...

let me know if you have further questions!
6 0
3 years ago
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