3 years ago

Use the ordered pair (2, 4) to find which equation describes the graph below.

Mathematics

1 answer:

Softa [21]2 years ago

4 0

Answer:

From pair [2,4]

Y= 3x-2 x=2

Then y = 3[2] - 2 = 6-2 = 4

The equation [b]

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A line segment is drawn from (2, 3) to (2, 8) on a coordinate grid.

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As our x-values are the same, we find the difference in our y-values, which are 8 and 3.

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2 years ago

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4 years ago

Consider a sample with a mean of 500 and a standard deviation of 100. What are the z-scores for the following data values: 560,

julsineya [31]

Answer:

z-score for value 560 = 0.6

z-score for value 650 = 1.5

z-score for value 500 = 0

z-score for value 450 = -0.5

z-score for value 300 = -2

Step-by-step explanation:

We are given a sample with a mean of 500 and a standard deviation of 100.

i.e., $\mu$ = 500 and $\sigma$ = 100

The z score distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

where X represents the data values;

So, z score for value 560 is;

z score = $\frac{560-500}{100}$ = 0.6

So, z score for value 650 is;

z score = $\frac{650-500}{100}$ = 1.5

So, z score for value 500 is;

z score = $\frac{500-500}{100}$ = 0

So, z score for value 450 is;

z score = $\frac{450-500}{100}$ = -0.5

So, z score for value 300 is;

z score = $\frac{300-500}{100}$ = -2

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3 years ago