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Mama L [17]
3 years ago
6

Evaluate the expression when a=7 and x=-2.

Mathematics
1 answer:
Kisachek [45]3 years ago
6 0

x-3a

Plug in the values a=7 and x=-2

=-2-3(7)

=-2-21=-23

The answer is -23.

Let me know if you need any clarifications, thanks!

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1/10

Step-by-step explanation:

Because there are 10 markers and only one is yellow. so you have a one in ten chance to pull a yellow marker.

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Step-by-step explanation:

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If I missied 4 questions on a 14 problem math paper, what grade would I get?
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For a sample of n = 36 that has a sample variance of 1,296, what is the estimated standard error for the sample? 6 37 36 6. 9
Liula [17]

The estimated standard error for the sample is 6

Given,

Sample size, n = 36

Sample variance, s^{2} = 1296

Standard deviation, s = √1296

                                   = 36

Standard error, SE = \frac{s}{\sqrt{n} }

                              = \frac{36}{\sqrt{36} }

                              = \frac{36}{6}

                              = 6

Concept

  • Sample size is the number of participants or observations included in a study. It is denoted by ‘n’
  • Sample variance is a measure of the degree to which the numbers in a list are spread out. It is denoted by 's^{2}'
  • Standard deviation is a measure of how dispersed the data is in relation to the mean. It is denoted by ‘s’

Learn more about standard deviation here:brainly.com/question/13905583

#SPJ4

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pantera1 [17]
I think the best answer choice would be C.

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3 years ago
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