Convert 40 pounds to kilograms. (the conversion factor is 2.2 pounds/kilogram. round to the nearest hundredth.)

a. 0.05 kilograms
b. none of these
c. 18.18 pounds
d. 18.18 kilograms

D

Step-by-step explanation:

1 kilogram = 2.2 pounds

x kilogram = 40 pounds

2.2x = 40

x = 18.1818...

18.18 kilograms

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: