Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. x + 3y = -8 14x + 4y = 2
A. (3, -1)
B. (-3, 1)
C. (-1, 3)
D. (1, -3)
Answer: D
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The displacement d (in meters) of an object at time t (in seconds) is given. Describe the motion of the object. What is the maximum displacement from its resting position, the time required for one oscillation, and the frequency?d = -4 sin (5t)
A. simple harmonic; 4 m; 
sec; 
? oscillations/sec
B. simple harmonic; -4 m; 5 ? sec; 
oscillations/sec
C. simple harmonic; 4 m; 
? sec; 
oscillations/sec
D. simple harmonic; -4 m; 
? sec; 
oscillations/sec
Write the fraction.According to a recent study, 10 out of 18 visits to a hospital emergency room were for an injury. What fraction of emergency room visits are NOT injury-related?
A. 
B. 
C. 
D. 
Add or subtract, if possible. Assume that all variables represent non-negative values and be sure to simplify your answer.3
+ 4
A. 7
B. 49
C. 12
D. 7
Use the square root property to solve the equation.4x2 - 44 = 0
A. {-11, 11}
B. {-
, 
}
C. {22}
D. {12}