Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = (4x - 2y)5
A. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
c ? 0
B. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
c ? 0
C. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
D. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
Answer: D
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The value V, in dollars, of an automobile t years after 2010 is given by the formula
.
?
Solve this equation for t to express the time in years since 2010 as a function of the value of the car.
?
A. There is no solution.
B. ?
C. 
D. ?
Find the prime factorization of the composite number.5200
A. 16 × 25 × 13 B. 2 × 5 × 13 C. 24 × 52 × 13 D. 22 × 102 × 13
Evaluate the function
at the given numbers (correct to six decimal places). Use the results to guess the value of the limit
Matrix A is given. Find appropriate identity matrices Im and In such that ImA = A and AIn = A.A = 
A. Im = 
, In = 
B. Im = 
, In =
C. Im = 
, In = 
D. Im = In = 