Mathematics, 21.01.2021 03:30 alexussaniyah
A medical researcher says that at least 20% of U. S. adults are smokers. In a random sample of 2000 U. S. adults, 18.5% say that they are smokers. At a = 0.05, test the claim.
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Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side
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Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2
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If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b
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Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3
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A medical researcher says that at least 20% of U. S. adults are smokers. In a random
sample of 2000...
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