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VladimirAG [237]
3 years ago
8

Does choosing a blue marble represent the complement event of choosing a red marble

Mathematics
2 answers:
Marina CMI [18]3 years ago
7 0

Answer:The complementary event for choosing a red marble is choosing a blue or purple. The total number of marbles is 5. The probability of choosing a red marble is 1/5, and the complement would be 4/5. That is not the same as choosing a blue marble.

Step-by-step explanation:

Hatshy [7]3 years ago
3 0
No it is exactly the color.
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Find the four arithmetic means between -21 and -36.
lara31 [8.8K]
The numbers given in the problem above are part of an arithmetic sequence with first and sixth terms equal to -21 and -36, respectively. Firstly, calculate for the common difference (d).
 
                                    d = (-36 - -21) / (6 - 1) = -3

The arithmetic mean is calculated by adding -3 to the term prior to it. 

            a2 = -21 + -3 = -24               a3 = -24 + -3 = -27
            a4 = -27 + -3 = -30               a5 = -30 + -3 = -33

Thus the four arithmetic means are -24, -27, -30, and -33.
4 0
3 years ago
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vova2212 [387]
Answer
y(3y-4)

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7 0
3 years ago
Read 2 more answers
A poker hand consisting of 7 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactl
77julia77 [94]

Answer:

The probability is 2,010,580/13,378,456

Step-by-step explanation:

Here is a combination problem.

We want to 7 cards from a total of 52.

The number of ways to do this is 52C7 ways.

Also, we know there are 12 face cards in a standard deck of cards.

So we are selecting 3 face cards from this total of 12.

So also the number of cards which are not face cards are 52-12 = 40 cards

Out of all these 40, we shall be selecting exactly 4. The number of ways to do this 40C4

Thus, the required probability will be;

(40C4 * 12C3)/52C7 = (91,390 * 220)/133,784,560

= 20,105,800/133,784,560 = 2,010,580/13,378,456

7 0
3 years ago
-6p - 21 = 3p - 12 solve the equation
grigory [225]

Answer:

p = 1

Step-by-step explanation:

-6p - 21 = 3p - 12

+6p         +6p

-21 = 9p - 12

+12        +12

9 = 9p

//////////

9     9

1 = p

p = 1

8 0
3 years ago
Read 2 more answers
True or false: (5.1 × 10^8)(2.1 × 10^8)=1.71×10^17<br> A <br> true<br> B <br> false
Gre4nikov [31]

Answer:

true

Step-by-step explanation:

5 0
3 years ago
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