Find numbers a and b, or k, so that f is continuous at every point.
A. a = 2, b = -3
B. a = -2, b = 3
C. a = 2, b = 3
D. Impossible
Answer: C
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Graph the system of inequalities.y ? -x2y ? x + 1y ? -5x ? -4
A. 
B. 
C. 
D. 
Solve.Newton's Law of Cooling states that if a body with temperature T1 is placed in surroundings with temperature T0 different from T1, then the body will either cool or warm to temperature T(t) after time t, in minutes, where 
A cup of coffee with temperature 105°F is placed in a freezer with temperature 0°F. After 5 minutes, the temperature of the coffee is 69.3°F. What will its temperature be 20 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 20°F B. 16°F C. 17°F D. 18°F
Evaluate the expression.
A. 9
B. 0
C. 
D. 1
Convert as indicated.54.91 m to decimeters
A. 5491 dm B. 5.491 dm C. 0.549 dm D. 549.1 dm