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Hunter-Best [27]
3 years ago
15

3 + x + x = 15 Just need a simple answer and explanation thank you

Mathematics
2 answers:
elena-s [515]3 years ago
6 0

Answer:

x=6

Step-by-step explanation:

x=6 because if you simplify this equation you get 3 + 2x = 15. The first step to solving a equation is having the x value on one side of the equation and the number value on one side. to do this we can subtract 3 from both sides of the equation and get the equation 2x=12. which would mean x=6.

klemol [59]3 years ago
4 0

Answer:

6

Step-by-step explanation:

3+x+x=15

3+2x=15

2x=15-3

2x=12

x=12/2

x=6

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What is the value of z in the equation 3 - 7 = 14? (2 points)<br> 03<br> 4<br> 07<br> 21
Hunter-Best [27]

Answer:

07

Step-by-step explanation:

3z - 7 = 14

3•7=21

21 - 7 = 14

3 0
3 years ago
In your own words, explain the Normal Distribution and provide a real world example.
elena-14-01-66 [18.8K]

Answer:

The Normal distribution is a continuous probability distribution with possible values all the reals. Some properties of this distribution are:

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The two parameters are:

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One particular case is the normal standard distribution denoted by:

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Example: Usually this distribution is used to model almost all the practical things in the life one of the examples is when we can model the scores of a test. Usually the distribution for this variable is normally distributed and we can find quantiles and probabilities associated

Step-by-step explanation:

The Normal distribution is a continuous probability distribution with possible values all the reals. Some properties of this distribution are:

Is symmetrical and bell shaped no matter the parameters used. Usually if X is a random variable normally distributed we write this like that:

X \sim N(\mu , \sigma)

The two parameters are:

\mu who represent the mean and is on the center of the distribution

\sigma who represent the standard deviation  

One particular case is the normal standard distribution denoted by:

Z \sim N(0,1)

Example: Usually this distribution is used to model almost all the practical things in the life one of the examples is when we can model the scores of a test. Usually the distribution for this variable is normally distributed and we can find quantiles and probabilities associated

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Answer:

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Step-by-step explanation:

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docker41 [41]

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but the graph is not given here

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