Asheet of paper 90 cm-by-66 cm is made into an open box (i. e. there's no top), by cutting x-cm squares out of each corner and folding up the sides. find the value of x that maximizes the volume of the box. give your answer in the simplified radical form. x = is the max.

A1.5-in-diameter bar has been machined from an aisi 1050 cold-drawn bar. this part is withstand a fluctuating tensile stress varying from 0 to 18.0 kpsi. because of the ends, and the fill radius, a fatigue stress-concentration factor ky is 1.6 for 10 or larger life. the fully correcte endurance limit is s 34 kpsi, sat= 100 kpsi and s, 84 kpsi. find the factor of safety guardin against fatigue, using the modified goodman fatigue line and first-cycle yielding