In triangle $xyz,$ $\angle y = 45^\circ$ and $\angle z = 60^\circ. $ if $xz = 4,$ then what is $xy$? [asy] unitsize(3 cm); pair x, y, z; x = (0,1); y = (-1,0); z = (1/sqrt(3),0); draw(x--y--z--cycle); label("$45^\circ$", y + (0. 3,0. 1), fontsize(10)); label("$60^\circ$", z + (-0. 2,0. 1), fontsize(10)); label("$x$", x, n); label("$y$", y, sw); label("$z$", z, se); label("$4$", (x + z)/2, ne); [/asy].

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Heights of men on a baseball team have a bell-shaped distribution with a mean of 177 cm and a standard deviation of 6 cm. using the empirical rule, what is the approximate percentage of the men between the following values? a. 159 cm and 195 cm b. 165 cm and 189 cm a. 89% of the men are between 159 cm and 195 cm. (round to one decimal place as needed.) b. 89% of the men are between 165 cm and 189 cm. (round to one decimal place as needed.)

An example of a fine motor skill is