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MariettaO [177]
2 years ago
13

Question 4) -6x + 9 + 6x -13 Your answer Question 5) 8x - 9 -11 -14x Your answer

Mathematics
1 answer:
Digiron [165]2 years ago
3 0

Answer:

4) -4

5) -6x-20

Step-by-step explanation:

Add x with x's and numbers with numbers

4) -6x + 9 + 6x -13

-6x+6x+9-13

x's cancel

9-13 = -4

5) 8x - 9 -11 -14x

8x-14x-9-11

-6x-20

hope this helps

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A clinical psychologist is administering the Hamilton Rating Scale for Depression (Hamilton, 1967). The scale ranges from 0 to 5
Lera25 [3.4K]

Using the normal distribution, it is found that the girl's score of 10 is higher than 99.62% of the population.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

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

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 6, \sigma = 1.5.

Her z-score is given by:

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

Z = \frac{10 - 6}{1.5}

Z = 2.67

Z = 2.67 has a p-value of 0.9962.

Hence her score is higher than 99.62% of the population.

More can be learned about the normal distribution at brainly.com/question/25800303

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2 years ago
Factor<br> 2z to the second power +3z-9
kozerog [31]
The answer is (2z-3)(z+3)
5 0
3 years ago
3x+4y=29<br> 6x+5y=43<br> Solve through elimination
vagabundo [1.1K]

Answer:

Let's solve your system by elimination.

3x+4y=29;6x+5y=43

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Becomes:

−6x−8y=−58

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Add these equations to eliminate x:

−3y=−15

Then solve−3y=−15for y:

−3y=−15

−3y −3 = −15

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Now that we've found y let's plug it back in to solve for x.

Write down an original equation:

3x+4y=29

Substitute5foryin3x+4y=29:

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3x+20+−20=29+−20(Add -20 to both sides)

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x=3

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x=3 and y=5

Step-by-step explanation:

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3 years ago
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Answer:

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