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Otrada [13]
3 years ago
12

Two cards are drawn from a standard deck of cards without replacement. Find the probability of drawing a heart and a club in tha

t order
Mathematics
1 answer:
aksik [14]3 years ago
6 0

Given:

Two cards are drawn from a standard deck of cards without replacement.

To find:

The probability of drawing a heart and a club in that order.

Solution:

We have,

Total number of cards = 52

Number of cards of each suit (Spade, club, diamond, heart) = 13

The probability of drawing a heart card is:

P(Heart)=\dfrac{\text{Number of heart cards}}{\text{Total number of cards}}

P(Heart)=\dfrac{13}{52}

P(Heart)=\dfrac{1}{4}

Now, the number of remaining card is 51. So, the probability of drawing a club card is:

P(club)=\dfrac{\text{Number of club cards}}{\text{Total number of remaining cards}}

P(club)=\dfrac{13}{51}

Using these probabilities, the probability of drawing a heart and a club in that order is:

P(\text{Heart and club})=P(\text{Heart})\times P(\text{Club})

P(\text{Heart and club})=\dfrac{1}{4}\times \dfrac{13}{51}

P(\text{Heart and club})=\dfrac{13}{204}

Therefore, the required probability is \dfrac{13}{204}.

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REY [17]

Answer:

The supplement of 65° is the angle that when added to 65° forms a straight angle (180°).

Step-by-step explanation:

Hope I <u><em>Helped!</em></u> :D

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%2F7%7D%7B7%5Csqrt%7B10%7D%2F2%20%7D" id="TexFormula1" title="\frac{3/7}{7\sqrt{10}
VashaNatasha [74]

Multiply the numerator and denominator by 7×2 = 14 to eliminate the denominators of those fractions:

\dfrac{\dfrac37}{\dfrac{7\sqrt{10}}2}\times\dfrac{14}{14}=\dfrac{3\times2}{7\sqrt{10}\times7}=\dfrac6{49\sqrt{10}}

Rationalize the denominator by multiplying both numerator and denominator by √10:

\dfrac6{49\sqrt{10}}\times\dfrac{\sqrt{10}}{\sqrt{10}}=\dfrac{6\sqrt{10}}{49(\sqrt{10})^2}=\dfrac{6\sqrt{10}}{49\times10}=\dfrac{6\sqrt{10}}{490}

Lastly, cancel the common factor of 2 in both the numerator and denominator (which comes from 6 = 2×3 and 490 = 2×245):

\dfrac{6\sqrt{10}}{490}=\dfrac{3\sqrt{10}}{245}}

8 0
3 years ago
How can you determine if you need to use a combination or permutation to count the number of outcomes? Which will usually have m
Nadya [2.5K]

Answer with Step-by-step explanation:

Permutation : It is an arrangement of r elements out of n elements.

Combination : it is a selection of r element out of n elements .

Suppose we have a set

S={1,2,3}

If two elements are taken at a time then

Using permutation formula

Total number of outcomes=3P_2

Total number of outcomes=\frac{3!}{(3-2)!}

Total number of outcomes=3!=3\times 2\times1=6

Using combination formula

\binom{n}{r}=\frac{n!}{r!(n-r)!}

Total number of outcomes=\binom{3}{2}=\frac{3!}{2!1!}

Total number of outcomes=\frac{3\times2!}{2!}

Hence, total number of outcomes=3

Total number of outcomes determined by permutation have more outcomes.

Because permutation is an arrangement of elements  therefore, it consider order of arrangement of element   but combination is a selection of elements it does no consider order of elements

Arrangements of two elements out of 3 elements

{1,2},{2,3},{2,1},{3,2},{1,3},{3,1}

By using combination if two elements taken at a time then combination

{1,2},{2,3},{1,3}

4 0
3 years ago
Question 10<br> Divide £64 in the ratio 3:5
ICE Princess25 [194]

Answer:

24:40

Step-by-step explanation:

3:5

This means there are 8 divisions altogether - 8 parts to be split (3+5=8)

64 / 8 = 8

8x3 = 24

8x5 = 40

£24:£40

Hope this makes sense!

8 0
2 years ago
(3p + 1) + 6(p – 8) – (p + 2)
Bond [772]

Distribute the Negative Sign:

=3p+1+6(p−8)+−1(p+2)

=3p+1+6(p−8)+−1p+(−1)(2)

=3p+1+6(p−8)+−p+−2

Distribute:

=3p+1+(6)(p)+(6)(−8)+−p+−2

=3p+1+6p+−48+−p+−2

Combine Like Terms:

=3p+1+6p+−48+−p+−2

=(3p+6p+−p)+(1+−48+−2)

=8p + −49

3 0
3 years ago
Read 2 more answers
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