Layla earned a score of 140 on Exam A that had a mean of 200 and a standard deviation of 50. She is about to take Exam B that has a mean of 650 and a standard deviation of 20. How well must Layla score on Exam B in order to do equivalently well as she did on Exam A? Assume that scores on each exam are normally distributed

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step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

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i will u if u answer my question in math

"exterior angles = 360 / number of sides.

60 = 360 / sides

sides = 360 / 60

sides = 6"