3 years ago

1. What is the probability of getting 3 tails, when tossing a coin 4 times? __%

Mathematics

1 answer:

Svetradugi [14.3K]3 years ago

6 0

1. The probability is 1/4
2. The probability is 3/4

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A student said that 42% of 78 is 45. Is this answer reasonable

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No, the student is wrong.

42% of 78 is 32.76

Convert the percentage (42) into a decimal by dividing it over 100:
$\frac{42}{100} = 0.42$

The last step is to multiply the decimal by 78:
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3(m + 2) - 7m = 18
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In short, Your Answer would be -3

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