In the simplex tableau 
, what is the next pivot element?
A. 4
B. 6
C. 3
D. 10
E. none of these
Answer: B
Mathematics
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Solve the problem.The sum of the squares of the digits of a positive two-digit number is 20, and the tens digit is 2 more than the units digit. Find the number.
A. 42 B. 35 C. 53 D. 24
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.
A. 
B. 
C. x22/7
D. x11/5
Mathematics
Replace the ? with the correct symbol >, <, =.-7
-5
A. = B. < C. >
Mathematics
The total resistance in a series circuit is equal to the sum of the resistances in the circuit. Find the total resistance in the series circuit.
A. 
B. 
C. 
D. 
E. 
Mathematics