Solve the problem.A casserole baked at 375°F is taken out of the oven into a kitchen that is 72°F. After 7 minutes, the temperature of the casserole is 315.9°F. After how many minutes will its temperature be 287°F? Round your answer to the nearest minute.
A. 24 min
B. 11 min
C. 12 min
D. 21 min
Answer: B
Mathematics
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The scores on a 30-point multiple-choice exam are given in the following frequency table:
What is the mean score on the exam?
A. 26.5 B. 25 C. 26 D. 25.5
Mathematics
The graph of the following curve is given. Find the area that it encloses.
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Mathematics
Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.y = 3x - 512x + 4y = 8
A. Neither B. Perpendicular C. Parallel
Mathematics
Divide.2.25 ÷ (-3)
A. -0.75 B. -17.5 C. -7.5 D. -1.75
Mathematics