Solve the equation. State whether the equation is a contradiction, an identity, or a conditional equation.-7.1m + 2.2 + 11m = 1.9 + 3.9m + 0.3
A. {-0.1}; conditional equation
B. all real numbers; identity
C. ? or { }; contradiction
D. {0}; conditional equation
Answer: B
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Provide an appropriate response. Solve the following quadratic using any method, rounding to the nearest hundredth if necessary: 3x2 = 9x + 30.
A. x = 3, 5, -2 B. x = -5, 2 C. x = 5, -2 D. x = -5, -2
Solve the problem.Cory and Melissa are racing electronic cars around a circular track. They begin at the same time going in the same direction. Cory's car completes a revolution in 55 seconds, while Melissa's car completes a revolution in 50 seconds. How long will it take them before both cars reach the starting point again simultaneously?
A. 1100 seconds B. 110 seconds C. 550 seconds D. 220 seconds
A partial solution set is given for the equation.
?
?
Find the complete solution set.
?
A. 
B. ?
C. ?
D. ?
E. none of these
Evaluate.(-6)2
A. -36 B. 12 C. -12 D. 36