Find all the first order partial derivatives for the following function.f(x, y, z) = 
A. 
= - 
; 
= - 
; 
= - 
B. 
= 
; 
= 
; 
= 
C. 
= 
; 
= 
; 
= 
D. 
= - 
; 
= - 
; 
= - 
Answer: D
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Evaluate the expression without using a calculator.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Each day Larry needs at least 10 units of vitamin A, 12 units of vitamin B, and 20 units of vitamin C. Pill #1 contains 4 units of A and 3 of B. Pill #2 contains 1 unit of A, 2 of B, and 4 of C. Pill #3 contains 
of A, 1 of B, and 5 of C.Pill #1 costs 9 cents, pill #2 costs 15 cents, and pill #3 costs 
Larry wants to minimize cost. What are the constants in the problem?
A. 4, 3, 0 B. 10, 12, 20 C. 4, 1, 10 D. 9, 15, 13
Multiply and write the answer in lowest terms.
? 
A. 
B. 
C. 
D. 
Use the distributive law to factor the given expression.14x + 4
A. 2(7x + 4) B. 2(7x + 2) C. 14(x + 4) D. 14(x + 2)