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DIA [1.3K]
4 years ago
9

SAT exams are from a Normal distribution with a mean of 1000 and a standard deviation of 200. What SAT score is in the 90th perc

entile?
Mathematics
1 answer:
Ivahew [28]4 years ago
3 0

Answer:

800

Step-by-step explanation:

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Plot the image of point C under a dilation about the origin (0,0) with a scale factor of 1/2
yuradex [85]

Answer:

See Attachment for graph

Step-by-step explanation:

Given

Point C

Required

Plot C when dilated by 1/2

First, we have to determine the coordinates of point C

From the attached graph;

C = (0,6)

Next, is to determine the new point when dilated;

This is calculated as thus;

New\ Point = Old\ Point * Scale\ Factor

C' = (0,6) * \frac{1}{2}

Expand the bracket

C' = (0 * \frac{1}{2}, 6* \frac{1}{2})

C' = (0, \frac{6}{2})

C' = (0, 3)

This implies that C' will be plotted at x =0 and y = 3

<em>(See attached for point C')</em>

6 0
4 years ago
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Anon25 [30]

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3 years ago
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ch4aika [34]
The answer is 55° because 75° + 50° = 125°, 180°-125°= 55°
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