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 105°F is placed in a freezer with temperature 0°F. After 7 minutes, the temperature of the coffee is 61.2°F. What will its temperature be 20 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 19°F
B. 18°F
C. 21°F
D. 23°F
Answer: D
Mathematics
You might also like to view...
Find the area of the shaded region. f(x) = -x3 + x2 + 16x
A. 
B. - 
C. 
D. 
Mathematics
Solve the problem.What is the probability of a dart landing in the shaded region?(Assume that the x's represent equal measures and that the dart is equally likely to land in any region on the board.)
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Assume all variables represent nonzero real numbers.(-2x)6
A. -64x6 B. 64x6 C. 12x D. -12x
Mathematics
Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros.-
, -3i
A. f(x) = x4 - 2x2 + 21 B. f(x) = x4 - 40x2 - 63 C. f(x) = x4 - 2x2 - 63 D. f(x) = x4 + 2x2 - 63
Mathematics