Solve the problem.A dish of lasagna baked at 400°F is taken out of the oven into a kitchen that is 68°F. After 8 minutes, the temperature of the lasagna is 323°F. What will its temperature be 19 minutes after it was taken out of the oven? Round your answer to the nearest degree.
A. 252°F
B. 233°F
C. 240°F
D. 245°F
Answer: D
Mathematics
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Find dy.y = 2 cot 
A. -2x2 csc 
dx
B. -2x2 csc2 
dx
C. -2x3 csc2 
dx
D. 2x2 csc2 
dx
Mathematics
Solve the inequality. Graph the solution set and write it in interval notation.34 - (5x + 3) ? 5(x - 1) + 2x
A. [3, ?) 
B. 
C. (-?, 3]
D. 
Mathematics
Find the angle between v and w. Round to one decimal place, if necessary.v = 2i + j - 3k and w = i + 3j - 3k
A. 50° B. 30.9° C. 66.8° D. 59.1°
Mathematics
Add or subtract terms whenever possible.
+ 
+ 
+ 
A. 116
+ 12
B. 14
+ 
+ 
C. 14
+ 12
D. 
+ 
+ 12
Mathematics