Rationalize the denominator. Write the quotient in lowest terms.
A. 
B. 
C. 
D. 
Answer: B
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Write the augmented matrix for the system. 7x + 5y + 2z = 70 9x + 4y + 2z = 67 5x + 4y + 6z = 63
A. 
B. 
C. 
D. 
Find the derivative.y = x9
A. 9x8 B. 8x9 C. 8x8 D. 9x9
Graph the feasible region for the system of inequalities.4y + x ? -2y + 2x ? 104y ? 10x + 40y ? 0
A. 
B. 
C. 
D. 
Solve.A company has 63,000 employees. Of these, 
drive alone to work, 
car pool, 
use public transportation, 
cycle, and the remainder use other methods of transportation. How many employees use each method of transportation?
A. Drive alone: 2,100; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
B. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
C. Drive alone: 21,100; car pool: 10,500; public transportation: 8,900; cycle: 7,000; other: 1000
D. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 