Find the product of the complex number and its conjugate.i
A. -1
B. i
C. 1
D. -i
Answer: C
Mathematics
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Find the exact value of the expression.sin 185° cos 65° - cos 185° sin 65°
A. 
B. - 
C. - 
D. 
Mathematics
Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither. 6x + 2y = 821x + 7y = 32
A. Perpendicular B. Parallel C. Neither
Mathematics
Simplify.(-3 - 2)[6 + (6 + 2)]
A. 19 B. 15 C. -38 D. -70
Mathematics
Solve the problem.Below is a diagram of a water slide. The slide is 17 ft long. The ladder leading to the slide is 13 ft long. How far is it from the end of the slide to the foot of the ladder? Round approximations to the nearest tenth. 
?
A. 60 ft B. 11 ft C. 5.5 ft D. 15 ft
Mathematics