Select the correct answer. The variable s varies directly as the square of t. When s= 4, t= 12. Nick's work finding the value of twhen s = 48 is shown:
s = kt2
12 = k : 42
12 = 16k
0.75 = k
48 = 0.752
64 = t2
8 = t
What is the first error, if any, in Nick's work?
OA. He did not make any errors.
ОВ. He used an equation that models inverse variation instead of direct variation.
OC. He substituted incorrectly when calculating the constant of variation.
OD.
He made an error when isolating t.