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Cerrena [4.2K]
3 years ago
13

Help please, I don't know how to answer....

Mathematics
1 answer:
Alchen [17]3 years ago
6 0

Step-by-step explanation:

the last one

x^2+2x+1 R(-5)

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If there are 52 cards in a deck with four suits (hearts, clubs, diamonds, and spades), how many ways can you select 5 diamonds a
Luba_88 [7]

Answer:

12C5 *(12C3) = 792*220 =174240 ways

Step-by-step explanation:

For this case we know that we have 12 cards of each denomination (hearts, diamonds, clubs and spades) because 12*4= 52

First let's find the number of ways in order to select 5 diamonds. We can use the combinatory formula since the order for this case no matter. The general formula for combinatory is given by:

nCx = \frac{n!}{x! (n-x)!}

So then 12 C5 would be equal to:

12C5 = \frac{12!}{5! (12-5)!}=\frac{12!}{5! 7!} = \frac{12*11*10*9*8*7!}{5! 7!}= \frac{12*11*10*9*8}{5*4*3*2*1}=792

So we have 792 was in order to select 5 diamonds from the total of 12

Now in order to select 3 clubs from the total of 12 we have the following number of ways:

12C3 = \frac{12!}{3! 9!}=\frac{12*11*10*9!}{3! 9!} =\frac{12*11*10}{3*2*1}=220

So then the numbers of ways in order to select 5 diamonds and 3 clubs are:

(12C5)*(12C3) = 792*220 =174240 ways

3 0
3 years ago
The product of 8 and 3 is divided by two times the sum of 1 and 2 <br><br>True / False​
zvonat [6]

Answer:

what? this isn't a true/false question...

the answer is 6

3 0
2 years ago
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Find the greatest common factor of
labwork [276]

Answer:

D. xy.

Step-by-step explanation:

The GCF of x and x^2 is x and GCF of y and y^2 is y.

Answer is xy.

5 0
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Plz help me with this question plz it's requested plz ​
astraxan [27]

Step-by-step explanation:

Answer above

if you have any doubts ask in comments

3 0
3 years ago
How do I solve this question?
dusya [7]

So if the ratio is 3:1, that means for every 3/12 of the small triangle, there is 1/12 of the big one

the shaded area ratio is 1/12:1/4

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3 years ago
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