Multivariable Calculus Quiz
13 questions · no time limit
0:00
PARTIAL DERIVATIVES
Question 1 of 13
No time limit
Current
Answered
Flagged
Not seen
The concentration of a pollutant in a lake is given by C(x,y)=10ln⁡(x2+y2+1)C(x,y) = 10 \ln(x^2 + y^2 + 1), where xx and yy are distances in kilometers from a central point. Let RAR_A be the maximum rate of change of concentration at point A(1,2)A(1,2), and RBR_B be the maximum rate of change at point B(3,1)B(3,1). What is the ratio RA/RBR_A / R_B?
YOUR PROGRESS
13
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCD
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end