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Daniel [21]
3 years ago
15

A student has heard that spinning pennies on a table, rather than flipping them in the air, results in tails side up 65% of the

time. If this is true, what is the probability that a student who spins 4 pennies will have them all land tails side up? 0.0150 0.1785 0.8215 0.9850
Mathematics
2 answers:
VLD [36.1K]3 years ago
8 0

Answer:

Step-by-step explanation:

the answer is 0.9850

first take 100 - 65 equals 35

35to the 4 equals 0.01501

1 minus 0.01501=0=98499

SVEN [57.7K]3 years ago
6 0

so I believe it is C 0.8215

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Step-by-step explanation:

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2x (x - 4) - (x+3)(x - 2)      =    - 4x

=============                   ========

(x -2)(x - 4)                            x^2 - 6x - 8

Multiply both sides by x^2 -6x - 8

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2x^2 - x^2 - 8x - x + 6 =  - 4x

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3 years ago
What’s the answer to this question quickly?
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