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3 years ago

Calculate 87 more than 12

Mathematics

2 answers:

lbvjy [14]3 years ago

6 0

Answer:

Step-by-step explanation:

We can split this up by doing the tens and then the ones. 12 = 10 + 2, so we have 87 + 12 = 87 + 10 + 2 = 97 + 2 = 99.

OlgaM077 [116]3 years ago

3 0

The answer would be 99 hope this helps

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Answer:

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Step-by-step explanation:

Given : The expected number of typographical errors on a page of a certain magazine is 0.2.

To find : What is the probability that an article of 10 pages contains

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a) The probability that an article of 10 pages contains 0 typographical errors.

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$P(N=0)=\frac{e^{-0.2}(0.2)^0}{0!}$

$P(N=0)=\frac{e^{-0.2}}{1}$

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b) The probability that an article of 10 pages contains 2 or more typographical errors.

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$P(N\geq 2)=1-P(N$

$P(N\geq 2)=1-[P(N=0)+P(N=1)]$

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$P(N\geq 2)=1-[0.8187+0.1637]$

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$P(N\geq 2)=0.0175$

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