Solve for x. Assume that lines which appear to be tangent are tangent.

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.

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15