Luis bought stock at $79.60. the next day, the price increased $10.45. this new price changed by −3 3/4%

% the following day. what was the final stock price, rounded to the nearest cent? is your answer reasonable? complete the explanation.

the final stock price is $ the final stock price is $ (is not approximately or is approximately) equal to $87, so my answer(is not or is) reasonable.

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)

yes they are the same