The following data shows the grades of the Dominic’s last nine quiz grades in Algebra 2. {72, 93, 52, 86, 100, 81, 79, 61, 86} Find the mean, median, mode, standard deviation, and variance. Round to the nearest tenth.

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

i hope i you.

ask the math teacher she or he would know lol.

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its a, i had the same answer, its from study island right

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there's the chart