State the domain and range of the function Mx) = 2[[x]] a.
reals
C.
even integers
b. reals
odd integers
reals
all integers
reals
positive integers
d.
Please select the best answer from the choices provided
Ο Α
ОО
B

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)