Mathematics, 15.10.2019 19:20 Bubba06
Aparticular group of men have heights with a mean of 174 cm and a standard deviation of 7 cm. john had a height of 197 cm.
a. what is the positive difference between john's height and the mean?
b. how many standard deviations is that [the difference found in part (a)]?
c. convert john's height to a z score.
d. if we consider "usual" heights to be those that convert to z scores between minus2 and 2, is john's height usual or unusual?
Answers: 3
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The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103
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Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0
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Aparticular group of men have heights with a mean of 174 cm and a standard deviation of 7 cm. john h...
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