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fomenos
3 years ago
15

Rolling a die what is the probability of rolling two 4s in a row

Mathematics
1 answer:
muminat3 years ago
6 0

Probability =

   (number of ways to succeed) / (total possible outcomes) .

There are 6 total possible outcomes of rolling one honest die.
Only one of them is a ' 4 '.

-- So the probability of rolling a '4' on the first roll is  1/6 .

-- The probability of rolling a '4' on the second roll is  1/6 .

-- The probability of BOTH events is

             (1/6) x (1/6)  =  1/36  =  (2 and 7/9) percent .

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If x=12 in, y=16, and z=20 in, what is the surface area of the geometric shape formed by this net?
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Given:

x = 12 in, y = 16 in and z = 20 in

To find:

The surface area of the geometric shape.

Solution:

Area of top rectangle = z × z

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Area of middle rectangle = z × y

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Area of bottom rectangle = z × x

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Area of left triangle = 96 in²

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Area of right triangle = 96 in²

Surface area = 400 + 320 + 240 + 96 + 96

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