Solve the equation in the real number system.2x4 - 2x3 + x2 - 5x - 10 = 0
A. 
B. 
C. {1, -2}
D. {-1, 2}
Answer: D
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Convert the measure to its alternate U.S. or metric form. Write improper fractions as mixed numbers for U.S. measures and as decimals for metric measures.Convert 50 centimeters to inches.
A. 20
inches
B. 125 inches
C. 25 inches
D. 20 inches
Simplify the expression and write the answer without negative exponents.x-9 ? x5
A. - 
B. 
C. -x4
D. x4
The following is the slope of line representing annual sale y in term of time x in year. Use the slope to interpret any change in annual sales for a one-year increase in time. ? The line has a slope of m = -20. ?
A. Sales increasing 20 units/yr B. Sales decreasing 20 units/yr C. No change in sales D. None of the above
Determine whether the triangles are congruent. If they are congruent, state why.
A. congruent; AAS B. congruent; SSS C. not congruent D. congruent; ASA