3 years ago

What is the greatest common factor of 42 70 and 84

Mathematics

1 answer:

Delvig [45]3 years ago

7 0

The greatest common factor would be 14

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You begin a hike in Death Valley, California, at an elevation of -86 meters. You hike to a point of elevation at 45 meters. What

kotegsom [21]

Answer:

131

Step-by-step explanation:

(-)86+45

86 + 45 = 131

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3 years ago

The probability that a lab specimen contains high levels of contamination is 0.10. A group of 4 independent samples are checked.

galben [10]

Answer:

a) 0.6561

b) 0.2916

c) 0.3439

Step-by-step explanation:

We are given the following information:

Let us treat high level of contamination as our success.

p = P(High level of contamination) = P(success) = 0.10

n = 4

The, by binomial distribution:

$P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}\\\text{where x is the number of success}$

a) P(No high level of contamination)

We put x = 0, in the formula.

$P(X=0) = \binom{4}{0}.(0.10)^0.(1-0.10)^{4} =0.6561$

Probability that no lab specimen contain high level of contamination is 0.6561

b) P(Exactly one high level of contamination)

We put x = 1, in the formula.

$P(X=1) = \binom{4}{1}.(0.10)^1.(1-0.10)^{3} =0.2916$

Probability that no lab specimen contain high level of contamination is 0.6561

c) P(At least one contains high level of contamination)

$p(x \geq 1) = 1 - p( x = 0) = 1 - 0.6561 = 0.3439$

Probability that at least 1 lab specimen contain high level of contamination is 0.3439

8 0

3 years ago

Given that lines a and b are parallel and that m∠8 = 108°, find m∠3.

bagirrra123 [75]

Answer:

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Step-by-step explanation:

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2 years ago

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alexandr1967 [171]

Answer:

8x+7y^2

Step-by-step explanation:

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Sindrei [870]

Answer: look at the picture

Step-by-step explanation:

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2 years ago