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marysya [2.9K]
3 years ago
15

What is he product of (n-8)(n+2)

Mathematics
1 answer:
liubo4ka [24]3 years ago
5 0

Answer:

\large\boxed{(n-8)(n+2)=n^2-6n-16}

Step-by-step explanation:

Use FOIL:

<em>(a + b)(c + d) = ac + ad + bc + bd</em>

We have:

(n-8)(n+2)=(n)(n)+(n)(2)+(-8)(n)+(-8)(2)=n^2+2n-8n-16

<em>combine like terms</em>

=n^2+(2n-8n)-16=n^2-6n-16

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B.

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Read 2 more answers
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pav-90 [236]

Answer:

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Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

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Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

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What is the minimum level for which the battery pack will be classified as highly sought-after class

At least the 100-10 = 90th percentile, which is the value of X when Z has a pvalue of 0.9. So it is X when Z = 1.28.

Z = \frac{X - \mu}{\sigma}

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X - 2 = 0.33*1.28

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The minimum level for which the battery pack will be classified as highly sought-after class is 2.42 hours

4 0
3 years ago
Nick, Paul and krutika share £80 in a ratio 1:1:2 how much money does each person get
Westkost [7]

Answer:

£20

Step-by-step explanation:

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Next you divide 80 by 4 which give you the answer 20.

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3 years ago
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