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ruslelena [56]
3 years ago
5

1+3x=x+9 solve for x.. Help?

Mathematics
1 answer:
anzhelika [568]3 years ago
7 0

Answer: <em>x=4</em>

Step-by-step explanation:

<em>1+3x=x+9</em>

<em>   -x  -x</em>

<em>1+2x=9</em>

<em>-1      -1</em>

<em>2x=8</em>

<em>Divide by 2 on each side</em>

<em>Final result</em>

<em>x=4</em>

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Packages of ramen noodles are on sale at the grocery store for $.20 each. Lucy decides to stock up since she had a $3 off coupon
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Please can someone help me
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Determine the area under the standard normal curve that lies to the left of (a) Z=081. (b) Z=0.43. (c) Z= -0.33. and (d) Z= 1.04
nasty-shy [4]

Using the normal distribution, the areas to the left are given as follows:

a) 0.7910.

b) 0.6664.

c) 0.3707.

d) 0.8508.

<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, and is also the area to the left of Z.

Hence:

  • The area to the left of Z = 0.81 is of 0.7910.
  • The area to the left of Z = 0.43 is of 0.6664.
  • The area to the left of Z = -0.33 is of 0.3707.
  • The area to the left of Z = 1.04 is of 0.8508.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

4 0
2 years ago
A number w decided by 5 equals 6​
Harman [31]

Answer:

You write the question wrong but it's okay

Step-by-step explanation:

it will be 30

i hope my answer help you

8 0
3 years ago
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