6 A student records the mass of a sample of polyvinyl chloride (PVC) as 75.23 grams. Then the student places the PVC sample into a graduated cylinder containing 25.0 mL
of water. The student reads the new volume in the graduated cylinder to be 78.0 mL. What is the percent error for
the student's density determination? The accepted value for the density of polyvinyl chloride is 1.38 g/cm3.
A 1.42%
B 2.86%
C 3.00%
D 4.00%

Iam pretty sure that the answer is d

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f.