Choose a number line to model the following situation: marcy owed her friend erica $25 dollars and paid her back $15.

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

Find the value of the variable and the length of each secant segment.

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?