Mr. O’Hara has developed a test of mechanical aptitude. At the beginning of a course in auto mechanics, he gives this test to his students. At the end of the year, he compares students’ scores on the test with their actual achievement in his course. What is he probably trying to find out about his test?

What is the value of the expression "two less than six times the diffrence of a number and five" when n = 9?

Find the arc length parameter along the given curve from the point where tequals=0 by evaluating the integral s(t)equals=integral from 0 to t startabsolutevalue bold v left parenthesis tau right parenthesis endabsolutevalue d tau∫0tv(τ) dτ. then find the length of the indicated portion of the curve r(t)equals=1010cosine tcost iplus+1010sine tsint jplus+88t k, where 0less than or equals≤tless than or equals≤startfraction pi over 3 endfraction π 3.

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?