Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. x = 34.07
B. x = 10.60
C. x = 317.47
D. x = 0.03
Answer: A
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B.
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D.
Find the exact value of the expression.sin 20° cos 100° + cos 20° sin 100°
A.
B.
C. -
D. -
Choose the appropriate sketch and description for the indicated geometric object.Equilateral ?ABC
A. ,
,
have different lengths; ?B = 90°
B. ,
are the same length
C. ,
,
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D. ,
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If an island's only residents are penguins and bears, and if there are 16 heads and 38 feet on the island, how many penguins and how many bears are on the island? ?
A. 12 bears, 4 penguins B. 11 bears, 5 penguins C. 13 bears, 3 penguins D. 4 bears, 12 penguins E. 3 bears, 13 penguins