The position function for a particular object is s equals negative 31 over 2 times t squared minus 44 times t plus 85. which of the following statements is true?

The initial velocity is - 44

Step-by-step explanation:

S = - 44t + 85 .

Differentiating once to get the velocity , we have

V = - 31t - 44

The initial velocity means that t = 0 , substitute this into the equation , we have

V = -31 (0) - 44

V = -44

Therefore, the initial velocity is -44

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60