Solve the problem.Newton's law of cooling states that the temperature f(t) of a body at time t is given by:
where C and k are constants and T0 is the temperature of the environment in which the object rests. If C = -28.5 and k = 0.04 and t is in hours, how long will it take for a frozen roast to thaw to a temperature of 0°C in a refrigerator that is at 5°C? Round your answer to the nearest hour.
A. 38 hr
B. 44 hr
C. 48 hr
D. 42 hr
Answer: B
Mathematics
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The bar graph below shows the number of students by major in the College of Arts and Sciences. Answer the question.How many more students are majoring in math than in science?
A. 150 B. 100 C. 50 D. 10
Mathematics
Decide whether the limit exists. If it exists, find its value.lim f(x)x?1
A. -1 B. 0 C. Does not exist D. 1
Mathematics
Find the polar coordinates of the point(s) of intersection of the given curves for 0 ? ? < 2?.r = 7 + 5 sin ?, r = 7 + 5 cos ?
A. ,
B. ,
C. ,
D. ,
Mathematics
Find the common ratio.92, 46, 23, 11.5, 5.75, . . .
A. 2 B. -0.5 C. 0.5 D. 5.75
Mathematics