Use cross products to determine whether the proportion is true or false.
= 
A. True
B. False
Answer: B
Mathematics
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Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree.A = 11.2°, C = 131.6°, a = 80.4
A. B = 37.2°, b = 309.5, c = 250.3 B. B = 37.2°, b = 25.8, c = 21 C. B = 36.8°, b = 248, c = 309.5 D. B = 37.2°, b = 250.3, c = 309.5
Mathematics
Determine the vertex of the graph of the parabola.y = x2 + 5x + 4
A. 
B. 
C. 
D. 
Mathematics
Solve the equation and check.
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the system by graphing. 3x + y = 16 4y = 64 - 12x
A. (5, 1) B. Infinitely many solutions C. No solution D. (0, 16)
Mathematics