Convert to degree measure. Round to two decimal places, if necessary.- 
A. -1.05°
B. - 
°
C. -60°
D. -60?°
Answer: C
Mathematics
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Find the exact value of the expression.cos 40° cos 20° - sin 40° sin 20°
A. 
B. 
C. 
D. 
Mathematics
Graph the hyperbola.1y2 - 4x2 = 4
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.-243-4/5
A. 81
B. 
C. - 
D. not a real number
Mathematics
Solve using the elimination method. 9x + 5y = 35-6x + 2y = 14
A. (35, 14) B. (-1, 8) C. (0, 7) D. (0, 8)
Mathematics