Solve for t. d=−16t^2 +4t

C option is correct.

t = 8 +- √ 1− 4 d

Step-by-step explanation:

d=−16t^2 +4t

t= (1+ √ 1− 4 d) /  8

 t = (1 − √ 1 − 4 d  ) / 8

y = 3

Step-by-step explanation: y = |3-3| + |3+2| - | 3-5|

                                                     0    +    5    -    2

                                                      0      +       3

                                                              3

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