Find any numbers for which the rational expression is undefined.
A. y = 25
B. y = 5
C. y = 5, y = -5
D. y = 
Answer: C
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Use differentiation to determine whether the integral formula is correct.
dx = - 
+ C
A. Yes B. No
Sketch the graph of the function and find the domain and range.f(x) = x2 + 1
A. domain: all real numbers
range: y ? -1
B. domain: all real numbers
range: y ? 1
C. domain: all real numbers
range: y ? 1
D. domain: all real numbers
range: y ? 0
Solve the problem.A thermometer reading 12°C is brought into a room with a constant temperature of 25°C. If the thermometer reads 17°C after 4 minutes, what will it read after being in the room for 10 minutes? Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to two decimal places.)
A. 7.15°C B. 24.9°C C. 21.14°C D. 28.86°C
Use the given vectors to find the value of the indicated scalar.v = 6i - 8j; Find 
2.
A. 100 B. 2304 C. 4 D. -96