The average on the math section of the sat was 500 with a standard deviation of 100. What score must you earn to be in the top 10% of test-takers?

Score is 629

Step-by-step explanation:  z value for P(x > 0,90)  is 1,29

Average x is 500 and deviation is 100.  Value of score p is solved from

z = (p - x) / s      p = s·z· + x = 129 + 500 = 629

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step-by-step explanation:

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(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)