Evaluate.(0.74) - (-0.87)
A. 1.61
B. 0.23
C. 0.13
D. -0.6438
Answer: A
Mathematics
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Solve the system.7x + 7y + z = 1 x + 8y + 8z = 89x + y + 9z = 9
A. (0, 0, 1) B. (0, 1, 0) C. (-1, 1, 1) D. (1, -1, 1)
Mathematics
Solve the system of equations by substitution.
A. x = 10, y = 0; (10, 0) B. x = 0, y = 10; (0, 10) C. x = 10, y = 10; (10, 10) D. x = 0, y = 0; (0, 10)
Mathematics
Perform the indicated operation where possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve. Use ? = 3.14 and round your answer to the nearest hundredth.Bob's truck has tires with a radius of 11 inches. How many feet does his truck travel if the wheel makes 9 revolutions?
A. 25.91 ft B. 51.81 ft C. 5.76 ft D. 3419.46 ft
Mathematics