3. Amanda threw her Algebra book off a 4-story building at the end of the school year. The equation h = -16t2 + 24t + 40 gives the height of the book after t seconds.
At what time will her book hit the ground?

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

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Write the ratio as a fraction in lowest terms 1 1/2 to 3 1/3