Solve the equation by expressing each side as a power of the same base and then equating exponents. 
x = 
A. {-2}
B. {2}
C. 
D. 
Answer: B
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Find the value of each square root by use of a calculator. Each number is approximate.
A. 0.0584 B. 0.0360 C. 0.05175 D. 0.0518
Provide an appropriate response.California requires a 6% sales tax on all purchases for California residents even if purchased on the Internet. Sue lives in California and purchased a small computer system for $650 from an Internet source. How much sales tax did she pay?
A. $689.00 B. $6.00 C. $656.00 D. $39.00
Answer the question.If two numbers are added, then the answer is called the ? .
A. difference B. quotient C. product D. sum
Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
A. (-4, 5, 4) B. (4, 5, -4) C. (4, -4, 5) D. no solution