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dybincka [34]
2 years ago
13

Write an expression that represents "the sum of x and 8".

Mathematics
1 answer:
Paraphin [41]2 years ago
3 0

Answer: x+8

The term 'sum' means 'result of adding two (or more) numbers or expressions'.

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1/9(-9x+18)-1/5(10+15x)
garri49 [273]

Answer:

-4x

Step-by-step explanation:

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3 years ago
What is the to m(3 +m)
ella [17]

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3m+m^2

Step-by-step explanation:

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A videotape store has an average weekly gross of $1,158 with a standard deviation of $120. Let x be the store's gross during a r
statuscvo [17]

Answer:

The number of standard deviations from $1,158 to $1,360 is 1.68.

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 problem, we have that:

\mu = 1158, \sigma = 120

The number of standard deviations from $1,158 to $1,360 is:

This is Z when X = 1360. So

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

Z = \frac{1360 - 1158}{120}

Z = 1.68

The number of standard deviations from $1,158 to $1,360 is 1.68.

3 0
2 years ago
The average weight of 5 linemen is 215 pounds. The average weight of the 6 skill players is 187 pounds. What is the average weig
Sever21 [200]

Answer:

199.73

Step-by-step explanation:

7 0
2 years ago
Can someone please help me​
elena-s [515]

Answer:

(2, 4)

Step-by-step explanation:

All you have to do is hop up 10 units on the grid from point P. 10 units up from -6 is 4. Therefore, your answer is (2, 4).

I hope this helps! Have a lovely day!! :)

6 0
2 years ago
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