Tan x=opposite/adjacent
cot x=adjacent/opposite
so you need to inverse the fraction
tan x=.78 as a fraction is 78/100
-> inversed= 100/78=1.28=cot x
so it is the second option
Answer:
Factored form: 2x(2x^2+x+1)
Step-by-step explanation:
You're subtracting them. :)
40 miles in 30 minutes, 60 miles in 45 minutes
divide 80 by 60 (mins in a hour) then multiply that’s by the number of minutes (30,45)