3 years ago

I need help pleas thank you

Mathematics

1 answer:

sergejj [24]3 years ago

7 0

X=275+55= 330 biked

y=275-55= 220 bus

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The total is 60 what is 5% of 60 dollers

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5% of 60 dollars is 3 dollars.

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3 years ago

Please anyone can help me to solve the questions please

Dafna11 [192]

Answer:

144 169 225

Step-by-step explanation:

12² = 144

13² = 169

15² = 225

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3 years ago

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I feel 12 less than 4 times a number is 8, the number is 5. Write a different sentence where the unknown number is also 5.

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9 less than 3 times a number is 6

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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

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3 years ago

The graph of y= f(X) is shown below, what point could be used to find f(3)?

balandron [24]

Answer:

Point A

Step-by-step explanation:

The long that would be used to find f(3) is the point that shows the value of y when x = 3.

Looking at the graph given, the only point that shows the value of y when x = 3 is point A.

When x = 3, y = 0.

Therefore, f(3) = 0.

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3 years ago