How to solve (4+6) / (9-4)

1 answer:

6 0

The answer is 2 you do what is in the parenthesis first. Which then gives you 10/5 and then you divide 10 by 5 and that is how you get 2.

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Before a sale, an item’s price was $18.00, but this was discounted during the sale to a new price of $14.40. What was the percen

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20% Because $18.00 - $14.40 = $3.60
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Answer:

There is a probability of 76% of not selling the package if there are actually three dead batteries in the package.

Step-by-step explanation:

With a 10-units package of batteries with 3 dead batteries, the sampling can be modeled as a binomial random variable with:

n=4 (the amount of batteries picked for the sample).
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k≥1 (the amount of dead batteries in the sample needed to not sell the package).

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Then, the probability of having one or more dead batteries in the sample (k≥1) is:

$P(x\geq1)=1-P(x=0)\\\\\\P(x=0) = \dbinom{4}{0} p^{0}q^{4}=1*1*0.7^4=0.2401\\\\\\P(x\geq1)=1-0.2401=0.7599\approx0.76$

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if they are both equeal

Step-by-step explanation:

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The answer would C. You must remember for the mean you need to add up all of the numbers, then divide the answer by the number of numbers you have.
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5,3,7,2,1
All of these numbers added up together is 18.In order to find out the mean, we need to divide the answer(18) by 5 because there are 5 numbers.
Hope this helps!

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