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saul85 [17]
2 years ago
12

Two card are pulled from a normal deck of 52 cards, without replacement.

Mathematics
1 answer:
8090 [49]2 years ago
8 0

Answer:

The probability that both cards that are drawn are hearts is 1/17.

Step-by-Step-Explanation:

First off, know that there are 13 heart cards in the deck of 52 cards. Therefore, the chance of pulling a single heart card is 13/52. Let's say we do pull a heart card. Since there is no replacement for the heart card taken out of the deck, we now have 12 heart cards out of a deck of 51 cards. The chance of pulling out a heart card in now 12/51. To find the probability that both cards drawn out are hearts, multiply the two fractions together: (13/52)⋅(12/51)=156/2652=1/17.

<h2></h2><h2>So hence, your answer is 1/17</h2>

-----------------------------------——————---------------------------------------------------------

Thanks!

Answered by: FieryAnswererGT

#learnwithbrainly

Want to Thank me? JUST MARK ME BRAINLIEST! So simple!

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3 years ago
The dimensions of a rectangle are x+3 and x+4. The area of the rectangle is 72. Set up an equation that models this rectangle an
vodomira [7]

Answer: x = 5

Step-by-step explanation:

The area of a rectangle is the length times the width. Since the dimensions are given as functions of x, youre going to have to use FOIL to combine them, then set that answer equal to the given value of 72.

l*w = (x+3)*(x+4) = x^2 + 7x +12 = 72

Subtract 72 on both sides. There is a reason why we'll do this instead of subtracting 12. The quadratic formula will help us to solve for x.

x^2 + 7x - 60 = 0

Apply the quadratic formula

\frac{-7 (+/-)\sqrt{7^2-(4)*(1)*(-60} }{2*1} =\frac{-7(+/-)17}{2}

We cant have a negative x value because that would result in negative dimensions and a negative area, which is impossible in this context. So you want to add the 17 instead of subtracting it.

x = 5 and x = -12

An alternate way is just factoring the trinomial to:

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3 0
3 years ago
Solve the equation x+0.7=1-0.2x In two different ways
timama [110]
Add 0.2x to both sides
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option #2
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3 0
3 years ago
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12345 [234]

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

50+12h=86

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6 0
3 years ago
Read 2 more answers
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