The following system does not have a unique solution. Solve the system.
A. inconsistent system, no solution
B. infinitely many solutions of the form x = -10 - 2z, y = 1, z = z
C. infinitely many solutions of the form x = -10 - 2z, y = 1 - z, z = z
D. x = -8, y = 1, z = -1
Answer: B
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Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. -5 - 2
B. 5 - 2
C. 2
- 5
D. 5 + 2
Even with most of the problem missing, it is possible to tell whether a suggested answer is reasonable. Determine whether the answer given is reasonable. If it is unreasonable, move the decimal point or insert a decimal point to make the answer reasonable.What is the price of the newspaper?$0.74
A. Unreasonable, should be $74.00
B.
| Reasonable |
C. Unreasonable, should be $7.40
D. Unreasonable, should be $0.074
Solve the inequality. Write the solution set in interval notation.
- 
? 
+ 3
A. 
B. 
C. 
D. 
Solve the equation by factoring.16x2 + 32x + 15 = 0
A. x = - 
or x = - 
B. x = - 
or x = - 
C. x = 
or x = 
D. x = 
or x = 