Over which interval does f(t)f(t)f, left parenthesis, t, right parenthesis have positive average rate of change? Choose 1 Choose 1 (Choice A) A [-5,-1][−5,−1]open bracket, minus, 5, comma, minus, 1, close bracket (Choice B) B [-8,-2][−8,−2]open bracket, minus, 8, comma, minus, 2, close bracket (Choice C) C [-9,-8][−9,−8]open bracket, minus, 9, comma, minus, 8, close bracket (Choice D) D [2,4][2,4]open bracket, 2, comma, 4, close bracket

idek

step-by-step explanation:

i don't know, but that looks pretty bad. my school passed us unless we failed in all the subjects, but idk abt ur school's rules.

copyright potato 2019.

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

the height of the surface increases from the center out to the sides of the road

it is c!