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zepelin [54]
3 years ago
12

Which is the best buy?

Mathematics
1 answer:
sergey [27]3 years ago
4 0

The correct answer is C

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What is linear and non-linear?
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Answer:

<em>The word 'linear' means something having to do with a line.On a Cartesian Plane, a linear function is a function where the graph is a straight line. The line can go in any direction, but it's always a straight line. A non-linear function has a shape that is not a straight line.</em>

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Hope it helps you!

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Every year, the students at a school are given a musical aptitude test that rates them from 0 (no musical aptitude) to 5 (high m
morpeh [17]

The question is incomplete. Here is the complete question.

Every year, the students at a school are given a musical aptitude test that rates them from 0 (no musical aptitude) to 5 (high musical aptitude). This year's results were shown in the figure below.

The average (mean) aptitude score:

The median aptitude score:

Answer: mean: 2.73

              median: 3

Step-by-step explanation: <u>Mean</u> is the average number of a set of numbers.

The table below shows a frequency of students to each score of the test. To calculate mean with a frequency table, do the following:

mean=\frac{\Sigma (score*frequency)}{\Sigma frequency}

mean=\frac{0*1+1*5+2*0+3*3+4*3+5*3}{1+5+0+3+3+3}

mean = 2.73

<u>Median</u> is the middle term of a set of data.

When there is a frequency table, median is calculated as:

1) First, determine the total number of observations (n).

For this table, n = 15

2) Because n is odd, find the position of the median using:

position=\frac{n+1}{2}

position = 8th

3) The median will be in the 8th position. To find the position, we add the frequencies and in doing so, we notice the position we want is in the score 3 category. So, the median for this frequency table is 3.

<u>Average score</u> of a musical aptitude test is <u>2.73</u> and median is 3

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Evaluate the expression 7x^2y when x = 3 and y + 4 six grade math
Rom4ik [11]

Answer:

21^8

Step-by-step explanation:

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