Solve the system of equations.
A. x = -1, y = 1, z = 1; (-1, 1, 1)
B. x = 0, y = 0, z = 1; (0, 0, 1)
C. x = 1, y = -1, z = 1; (1, -1, 1)
D. x = 0, y = 1, z = 0; (0, 1, 0)
Answer: B
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Solve the problem.Over one particular stretch of road, the Whitepoint Highway rises 453 ft over a horizontal distance of 3100 ft. Find the grade of the road to the nearest tenth of a percent.
A. 0.07% B. 3.7% C. 7.3% D. 14.6%
Solve the problem by estimating.Juan traveled for 6 weeks in Asia last year and spent $2357 while he was there. Estimate the average amount he spent each day. Round the number of days to the to the nearest ten and the amount of money spent to the nearest hundred.
A. $600 B. $50 C. $500 D. $60
Use the graph to estimate any solutions to the given equation on the interval 
cos x = sin x cos x
A. None
B. 0, 
, ? , 
C. 
, 
D. 0, ?
What does the abbreviation stand for?cwt.
A. count B. per hundred weight C. count weight D. cost by weight