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choli [55]
3 years ago
9

A card is drawn from a deck of 52 cards. Find the probability of drawing a black card.

Mathematics
2 answers:
Usimov [2.4K]3 years ago
5 0

Answer:

14) 26/52

15) 52/52

16) 4/52

17) 24/52

Step-by-step explanation:

Zepler [3.9K]3 years ago
3 0

Answer: See below

Step-by-step explanation:

14) 26/52 of the cards are red, 1/2

15) All of the cards are red or black, 1/1

16) 4/52 of the cards are aces, 1/13

17) 12/52 of the cards are J/Q/K, 3/13

Convert the fractions to whatever unit is needed.

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what formulas could be used to determine the surface area of a cylinder sandwiched between one cone and half of a sphere?
skelet666 [1.2K]
Answer: Rectangle around the cylinder, Lateral surface of the cone, Half a sphere

To find this surface area, you have 3 different parts. First, you need the rectangular portion of the cylinder, because the circles will be on the inside of the composite shape. Then, you will need the lateral side of the cone, that's everything but the circular base. Again, the circle will be on the interior. Finally, you should find the surface area of half of the sphere.
4 0
3 years ago
Solve for x mathematics
Bas_tet [7]

Answer:

x = 6

Step-by-step explanation:

9 / 6 = (2x - 6) / 4 (by the side splitter theorem)

6(2x - 6) = 36

12x - 36 = 36

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3 0
3 years ago
Read 2 more answers
How many ninths does it take to make the same amount as 1/3
IgorLugansk [536]
3.
ninths=1/9
1/3 is equal to 3/9.
so (1/9)*3 = 3/9
8 0
3 years ago
Read 2 more answers
(HELP!)
denis-greek [22]

Let X be the random variable denoting the number of girls that are born. Then X has a binomial distribution on n=125 babies and probability of getting a girl p=0.5. The probability we want is

\mathbb P(X\ge60)=\displaystyle\sum_{x=60}^{125}\binom{125}x0.5^{125-x}0.5^x\approx0.704=70.4\%

7 0
3 years ago
Read 2 more answers
36 singers in the choir 5/6 are boys how many of the singers are girls
Aleksandr [31]

Answer:

6

Step-by-step explanation:

5/6 of 30 = ?

5            x

----    =   ----

6             36

36 x 5 = 180

180/6 = 30

That means 30 singers are boys.

36 - 30 = 6 (the number of girls)

5 0
3 years ago
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