Find the opposite of the real number -4.
A. 
B. 1
C. -4
D. 4
E. 
Answer: D
Mathematics
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Express the given trigonometric function in terms of the indicated function.cos ?, in terms of tan ?
A. cos ? = 
B. cos ? = 
C. cos ? = 
D. cos ? = ±
Mathematics
Find the LCD for the list of rational expressions.
, 
A. 60xy2 B. 60xy3 C. 60x3y D. 60x2y
Mathematics
Referring to triangle ABC, find the area of the triangle.
?
?
Round to three significant digits.
?
A. 0.131 km2 B. 0.125 km2 C. 0.121 km2 D. 0.133 km2 E. 0.123 km2
Mathematics
Use the value of the trigonometric function to find 
.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics