Use matrix inversion to solve the system of linear equations.
?
?
A. 
,
,
B. 
,
,
C. 
,
, 
D. 
,
,
E. The system is inconsistent.
Answer: D
You might also like to view...
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; 
Factor mentally. Look for special products and greatest common factors.
One factor is:
A) (x 6)
B) (x + 6)
C) (x 9)
D) (x + 9)
E) 4
Evaluate.log7 49
A. 14 B. 7 C. 49 D. 2
Simplify.Rationalize the denominator. 
A. 
B. 
C. 
D. 