Answer:
the area of rectangle A is 133.33 sq cm
Step-by-step explanation:
let us suppose area of rectangle A be x....hence we get ,
3:5=80/x
or,3/5=80/x
or,3x=80*5
or,x=400/3
x=133.3.3
Answer:
infinity
Step-by-step explanation:
The derivative of
in the direction of a vector
is

With
, we get

and
,

Then

Answer:
A.)
Step-by-step explanation:
A.)
See attached picture for solution: