Solve the problem.A cup of tea with temperature 103°F is placed in a freezer with temperature 0°F. After 8 minutes, the temperature of the tea is 52.2°F. After how many minutes will its temperature be 29°F? Round your answer to the nearest minute.
A. 21 min
B. 24 min
C. 14 min
D. 15 min
Answer: D
Mathematics
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Solve the problem.The symmetry type of an isosceles, nonequilateral triangle is
A. D2. B. Z3. C. Z2. D. D1. E. none of these
Mathematics
Triangle ABC is a right triangle with sides of lengths a, b, and c and a right angle at C. Find the indicated trigonometric function value of A. Rationalize denominators containing radicals.a = 7, b = 2; find sec A.
A. 
B. 
C. 
D. 
Mathematics
Estimate the fraction as 0, 
, or 1.
A. 0
B. 1
C. 
Mathematics
Graph the hyperbola.(y + 3)2 - 9(x + 1)2 = 9
A. 
B. 
C. 
D. 
Mathematics