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Lesechka [4]
3 years ago
14

A box containing 9 red marbles, 12 blue marbles, 13 green marbles and 6 white marbles. What is the probability of talking out a

red marble?
Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

9 / 40 or 0.225

Step-by-step explanation:

total marbles : 9 + 12 + 13 + 6 = 40 marbles

probability of taking red = total red marbles/ total number of marbles

probability of taking red = 9 / 40

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Write an expression that is equivalent to three over four(5z + 16).
klio [65]
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Karin wants to use the distributive property to mentally find the value of 19⋅42+19⋅58. Which expression can she use?
devlian [24]

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Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
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RSB [31]

Answer:

I got -64

Step-by-step explanation:

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8 0
3 years ago
Plzz help me to find coefficient in binomial theorem (25 points)
Viefleur [7K]

<em>Denote x2 by y. </em>

<em>  </em>

<em>(x2-3)7=(y-3)7 </em>

<em>  </em>

<em>This is a binomial expansion in y, and you want the coefficient of y4 because y4=x8 </em>

<em>  </em>

<em>You have 7 terms of (y-3) in (y-3)7.  To get the fourth power of y, you need to choose y from four of the terms.  The number of ways you can do this is the combinations of 7 things taken 4 at a time.  This is: </em>

<em>  </em>

<em>7!/(4!3!)=35</em>

<em />

<em>So, the coefficient of x8 in the given expansion will be 210.</em>

<em>HOPE IT HELPS</em>

<em>THANK YOU </em>

5 0
3 years ago
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