Solve the problem.A cup of coffee is heated to 194° and is then allowed to cool in a room whose air temperature is 
After 11 minutes, the temperature of the cup of coffee is 
Find the time needed for the coffee to cool to a temperature of 102°. Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to one decimal place.)
A. 15.1 minutes
B. 41.1 minutes
C. 29.7 minutes
D. 26.4 minutes
Answer: D
Mathematics
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Solve the given system of equations algebraically.x2 + y2 = 36x2 - y2 = 36
A. x = 6, y = 0 B. x = 6, y = 0; x = -6, y = 0 C. x = 0, y = -6 D. x = 0, y = 6; x = 0, y = -6
Mathematics
Decide whether the set is countably infinite. ? Set of whole numbers. ?
A. no B. yes
Mathematics
Write as a percent.4
A. 400% B. 0.4% C. 200% D. 0.04%
Mathematics
Multiply.
A. q2 + 1
B. q2 + 
q + 1
C. 2q2 + 
q + 1
D. q2 + 
q + 1
Mathematics