At a certain time instant, the vector → a ( t ) a→(t) has → a = − ^ ı + 4 ^ ȷ m ˙ → a = ^ ı + ^ ȷ m / s . a→=−ı^+4ȷ^ ma→˙=ı^+ȷ^ m/s. matlab/mathematica input: avec = [-1,4] adotvec = [1,1] at this same instant of time, what is d d t ∥ proj ( → a ( t ) , ^ a ( t ) ) ∥ ddt‖proj⁡(a→(t),a^(t))‖?

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation:

493 would be the correct answer

step-by-step explanation:

d. you cannot tell because there are no values shown.

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock