Provide an appropriate response.A letter or symbol that represents one or more unknown values is a(n):
A. equation
B. known
C. constant
D. variable
Answer: D
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Which of the following was recommended in NCTM's Professional Standards for Teaching Mathematics?
a. Toward classrooms as mathematical communities – away from classrooms as simply a collection of individuals b. Toward logic and mathematical evidence as verification – away from the teacher as the sole authority for right answers c. Toward mathematical reasoning – away from merely memorizing procedures d. All of the above e. None of the above
Determine the discriminant of the quadratic equation. Use the value of the discriminant to determine whether the quadratic equation has two rational solutions, two irrational solutions, one repeated real solution, or two complex solutions that are not real.9x2 - 6x = 0
A. Two complex solutions that are not real B. Two rational solutions C. Two irrational solutions D. One repeated real solution
Convert the units.37 L = 
mL
A. 0.037 mL B. 3700 mL C. 37,000 mL D. 3.7 mL
Multiply and simplify.
? 
A. 
B. 
C. - 
D. - 