Use Gauss-Jordan elimination to solve the linear system and determine whether the system has a unique solution, no solution, or infinitely many solutions. If the system has infinitely many solutions, describe the solution as an ordered triple involving variable z. x + y + z = 7 x - y + 2z = 7
A. (8, -3, 2)
B. (-3z + 14, 2z - 7, z)
C. 
D. (4, 1, 2)
Answer: C
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Solve the problem by estimating.Andy wants to buy a refrigerator for $699, a stove for $759, and a dishwasher for $549. Round each cost to the nearest hundred to estimate the total cost.
A. $2000 B. $1800 C. $2100 D. $1900
Solve the problem. Round to the nearest cent.Find the property tax on a property with an assessed value of $40,760 in a community with a tax rate of $14.50 per $1000 of assessed value.
A. $2811.03 B. $591.02 C. $59.10 D. $28,110.30
Use the Quotient to a Power Rule to simplify. All variables are nonzero.
2
A. m825
B. 
C. 
D. 
Solve the problem.An object has a frequency of 3 vibrations per second. Write an equation in the form d = sin ?t for the object's simple harmonic motion.
A. d = sin 
t
B. d = sin 
?t
C. d = sin 6t
D. d = sin 6?t