Solve the problem.A thermometer reading 
is placed inside a cold storage room with a constant temperature of 
If the thermometer reads 
in 12 minutes, how long before it reaches 
Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to the nearest whole minute.)
A. 4 minutes
B. 68 minutes
C. 25 minutes
D. -25 minutes
Answer: B
Mathematics
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Solve.The function h(t) = -16t2 + 80t - 96 gives the height h, in feet, of a flare fired from the bottom of a gorge 96 feet deep with an initial velocity of 80 ft/sec. The flare fired is visible only when it is above the rim (h = 0). During what interval can the flare be seen?
A. (0, 2) B. (6, 7) C. (4, 5) D. (2, 3)
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A point P(x, y) in rectangular coordinates is given. Determine the polar coordinates 
such that 
and 
(4, -4)
A. 
B. 
C. 
D. 
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Find the indicated trigonometric function of ?.
cot ?
A. 
B. 1
C. 
D. 
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Solve.x + 
= 8
A. -2, -6 B. 8, 12 C. 2, 6 D. 12
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