Determine whether the following is an expression or an equation. If it is an expression, simplify if possible and evaluate it for x = 2. If it is an equation, solve it.
+ 
A. Expression; x + 6; undefined
B. Expression; x - 6; undefined
C. Equation; 3
D. Equation; 12
Answer: A
Mathematics
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Solve the right triangle with the given sides and angles.a = 3.4, b = 2.1
A. ? = 58.3°, ? = 31.7°, c = 4.0 B. ? = 53.8°, ? = 36.2°, c = 4.0 C. ? = 38.1°, ? = 51.9°, c = 5.5 D. ? = 31.7°, ? = 58.3°, c = 4.0
Mathematics
Find the inverse, if it exists, for the matrix.
A. 
B. 
C. The inverse does not exist.
D. 
Mathematics
Determine the phase shift of the function.y = -4 cos 
A. ?
B. 
C. - 
D. -4
Mathematics
Find the probability of the given event.A single fair die is rolled. The number on the die is prime.
A. 
B. 
C. 
D. 3
Mathematics