Use the law of Cosines to solve the given triangle. Round your answer to two decimal places.
?
a = 13, b = 17, c = 23
?
A. A ? 46.85°, B ? 46.85°, C ? 86.3°
B. A ? 33.91°, B ? 99.24°, C ? 46.85°
C. A ? 46.85°, B ? 33.91°, C ? 99.24°
D. A ? 33.91°, B ? 46.85°, C ? 99.24°
E. A ? 99.24°, B ? 46.85°, C ? 33.91°
Answer: D
Mathematics
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Find the area of triangle ABC. Round to four significant digits. 
A. 367.4 m2 B. 238.8 m2 C. 183.7 m2 D. 119.4 m2
Mathematics
Convert the angle to a decimal in degrees. Round the answer to two decimal places.161°20'12''
A. 161.40° B. 161.35° C. 161.30° D. 161.34°
Mathematics
List the critical values of the related function. Then solve the inequality.
> 
A. 13 - 
, - 
, 5, 13 + 
; (-?, 13 - 
) ? 
? (13 + 
, ?)
B. 13 - 
, - 
, 5, 13 + 
; 
? (5, 13 + 
)
C. - 
, 5; 
D. 13 - 
, 13 + 
; (13 - 
, 13 + 
)
Mathematics
Solve.
+ 
= 
A. 10
B. 
C. 
D. 
Mathematics