Solve the equation.
- 6 = -2
A. -76
B. -78
C. 78
D. 76
Answer: D
Mathematics
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 4 tan t, y = 5 sec t; -?/2 ? t ? ?/2 
A. 
B. 
C. 
D. 
Mathematics
Choose the equation that matches the graph.
A. x2 = 8y B. 8x2 = -y C. 8y2 = x D. 8x2 = y
Mathematics
Use a sum-to-product identity to rewrite the expression.cos (8t2) - cos (5t2)
A. -2cos (6.5t2) sin (1.5t2) B. -2sin (6.5t2) cos (1.5t2) C. -2sin (6.5t2) sin (1.5t2) D. -2cos (6.5t2) cos (1.5t2)
Mathematics
Change the fraction or mixed number into an equivalent decimal. Use bar notation to write repeating decimals. 
A. 0.7
B. 0.6
C. 0.7
D. 0.7
Mathematics