Find the value of the expression using the given values.
+ 
x = -7, y = -6
A. 13
B. 85
C. -1
D. 1
Answer: A
Mathematics
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Use Newton's Law of Cooling to solve the problem.A dish of lasagna baked at 350°F is taken out of the oven into a kitchen that is 74°F. After 5 minutes, the temperature of the lasagna is 312.7°F. What will its temperature be 20 minutes after it was taken out of the oven? Round your answer to the nearest degree.
A. 235°F. B. 224°F. C. 218°F. D. 229°F.
Mathematics
Evaluate the expression according to the order of operations.8 ? 8 + 12 ÷ [8 - (3 + 2)]
A. 67 B. 70 C. 69 D. 68
Mathematics
Find the nth term of the geometric sequence.6, 18, 54, 162, 486
A. an = 6 ? 3n B. an = 6 ? 3n C. an = a1 + 3n D. an = 6 ? 3n-1
Mathematics
Multiply. Simplify, if possible.-1.01 ? (-6.4)
A. 7.41 B. 6.464 C. -5.39 D. -7.41
Mathematics