Find the amplitude and range of the function.y = 
cos x
A. 5; 
B. 5; [-5, 5]
C. 
; 
D. 
; 
Answer: D
Mathematics
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Tell whether the angle is acute, right, obtuse, or straight.
A. Acute B. Straight C. Right D. Obtuse
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Translate the percent statement to a proportion.39% of 200 is 78.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
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Use a polar coordinate system to plot the point with the given polar coordinates.(4, -135°)
A. 
B. 
C. 
D. 
Mathematics
Find the amount or rate of discount and the sale price after the discount. Round money answers to the nearest cent if necessary.Original price: $96 Amount of discount: $38.40
A. 4%, $57.60 B. 41%, $57.60 C. 40%, $57.60 D. 42%, $57.60
Mathematics