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2 years ago

Perform the indicated operation (x-4)(x+8)

Mathematics

2 answers:

Hitman42 [59]2 years ago

6 0

Answer:

Step-by-step explanation:

I assume you want to simplify this.

Use distributive property:

x^2+4x−32 should be your answer.

Paul [167]2 years ago

4 0

Answer:

x^2+4x-32

Step-by-step explanation:

(x-4)(x+8)=x^2+8x-4x-32

x^2+4x-32

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densk [106]

<span>the probability will be 0.55</span>

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3 years ago

A sum of two mixed numbers is given.<br><br> What is the missing number?

kaheart [24]

Answer:

16.

Step-by-step explanation:

The whole numbers stay the same so it stays as 2. The way they get 30 for the denominator is by multiplying the fraction 1/3 by 10 and 1/5 by 6. So now we have 10/30 and 6/30. Add them together, 10+6=16

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2 years ago

Jonah’s Restaurant reports net income of $20,000 during the year 2015. It distributes a dividend of $6,000 to its shareholders.

AlekseyPX

Retention ratio = (net income - dividends) / net income

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3 years ago

A circle with an area 9pi has a sector with a central angle of 1/9pi what is the area of the sector

ludmilkaskok [199]

Answer:

½pi or 0.5pi units²

Step-by-step explanation:

Area : angle

9pi : 2pi

x : pi/9

9pi/2pi = x/(pi/9)

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8 0

2 years ago

Test scores are normally distributed with a mean of 500. Convert the given score to a z-score, using the given standard deviatio

Bond [772]

Answer:

The percentage of students who scored below 620 is 93.32%.

Step-by-step explanation:

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

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

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

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 question, we have that:

$\mu = 500, \sigma = 80$