Solve the problem.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 102°F is placed in a freezer with temperature 0°F. After 8 minutes, the temperature of the coffee is 53.8°F. What will its temperature be 19 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 19°F
B. 22°F
C. 17°F
D. 21°F
Answer: B
Mathematics
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Find all real numbers in the interval [0, 2?) that satisfy the equation.cos2 x + 2 cos x + 1 = 0
A. {2?}
B. {?}
C. 
D. 
Mathematics
Graph the equation as a solid line. Graph the inverse relation as a dashed line on the same axes by reflecting across the line y = x.y = 4x
A. 
B. 
C. 
D. 
Mathematics
Identify and graph the polar equation.r = 4? 
A. 
logarithmic spiral
B. 
logarithmic spiral
C. 
logarithmic spiral
D. 
logarithmic spiral
Mathematics
Simplify the power of i to i, 1, -i or -1.
A. i B. -1 C. 1 D. -i
Mathematics