Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the equation for solutions in the interval [0°, 360°). Round to the nearest degree.cos 2? = 
A. {0°, 120°, 180°, 240°} B. {105°, 165°, 285°, 345°} C. {15°, 165°, 195°, 345°} D. {30°, 90°, 150°, 270°}
Mathematics
Choose the most reasonable measurement for the situation described.Tonya measured the length of her bookshelf. Choose the most reasonable measurement.
A. 78.1 cm B. 78.1 mm C. 78.1 km D. 78.1 m
Mathematics
Solve the system of equations.2x - y + 5z = 33-6x - 3z = -484y + z = 34
A. {(5, 7, 6)} B. ? C. {(5, 6, 7)} D. {(-5, 7, 10)}
Mathematics
Explain why the figure is not a polygon.
A. Sides intersect B. Not closed C. Curved side
Mathematics