In ?ABC, if a = 10, b = 11 and c =12, find ?A, ?B and ?C . Round to the nearest tenth.
?A = 51.3, ?B = 59.2 and ?C = 69.5°
Mathematics
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Solve the equation.
+ 
= 
A. ?
B. 
C. 
D. 
Mathematics
Solve (Round your answer to the nearest thousandth). The seven-day mean of settleable solids cannot exceed 0.15 milliliters per liter (mL/L). During the past seven days, the measurements of concentration have been 0.14, 0.11, 0.25, 0.19, 0.12, 0.12, and 0.16 mL/L. What was the mean concentration? Was it within the limit?
A. 0.158, no B. 0.156, no C. 0.144, yes D. 0.142, yes
Mathematics
Solve the polynomial inequality.
? 0
A. 
? 
B. 
? 
C. 
? 
D. 
? 
Mathematics
Simplify. (Assume all variables are nonzero.)
2
A. 
B. 
C. 
D. 25x2
Mathematics