Solve, finding all solutions in [0, 2?). Give an exact answer unless indicated otherwise.4.2 cos x + 2.1
= 0
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Answer: C
Mathematics
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a and b represent the two legs of a right triangle, while c represents the hypotenuse. Find the length of the unknown side.b = 20 cm, c = 52 cm
A. a = 48 cm B. a = 36 cm C. a = 56 cm D. a = 49 cm
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Determine algebraically whether the function is even, odd, or neither even nor odd.f(x) = 14
A. Even B. Odd C. Neither
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Multiply.51.9 × 1.9
A. 53.8 B. 98.72 C. 99.71 D. 98.61
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Solve the problem.Mel plans to fence his yard for his new puppy. The yard is a 60 ft by 120 ft rectangle. Fencing costs $18 per 10 ft section. What is the cost of the fence not including unused fencing?
A. $1296.00 B. $216.00 C. $648.00 D. $324.00
Mathematics