Solve the problem.Use Newton's Law of Cooling to find the temperature in the following case. A glass of water with a temperature of 5°C is placed in a room with a temperature of 30°C. One minute later the water has warmed to 9°C. After how many minutes does the water have a temperature that is 90% of the ambient temperature?
A. ? 23 min
B. ? 15 min
C. ? 12 min
D. ? 19 min
Answer: C
Mathematics
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Perform the conversion. Round to the nearest hundredth when necessary.443 mi to km
A. 419.08 km B. 469.58 km C. 713.23 km D. 275.1 km
Mathematics
Use synthetic division and the Remainder Theorem to find the function value.f(x) = 6x3 - 27x2 - 13x; find f
A. 0 B. -1 C. 2 D. -2
Mathematics
Estimate the derivative of the function 
at the point 
.
?
Please select the correct answer rounded to the nearest hundredth.
?
A. -2.5 B. -2.55 C. -3 D. -0.5 E. -2.45
Mathematics
Using the variable x, write the interval as an inequality.
A. -1 < x < 6 B. -1 ? x ? 6 C. -1 < x ? 6 D. -1 ? x < 6
Mathematics