Solve for the variable.12 = - 
x
A. -9
B. - 16
C. 9
D. -12
Answer: A
Mathematics
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Describe the graph using both set-builder notation and interval notation.
A. {x?x ? -2}, (-?, -2] B. {x?x ? -2}, [-2, ?) C. {x?x < -2}, (-?, -2) D. {x?x > -2}, (-2, ?)
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Evaluate.Find (f ? g)(4) given f(x) = x2 - 4x - 45 and g(x) = 25 - x2.
A. -450 B. -405 C. -404 D. -36
Mathematics
Graph the pair of parametric equations in the rectangular coordinate system.x = 7 sin t, y = 7 cos t; 0 ? t ? 2? 
A. 
B. 
C. 
D. 
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Solve.A patient must drink 3 L of water in the 2-hr period before a certain test is administered. How many milliliters per hour must the patient drink?
A. 1500 mL B. 6 mL C. 1.5 mL D. 150 mL
Mathematics