Solve the problem.The temperature rose 7 degrees from 10:00 A.M. to noon. By 3:00 P.M. the temperature had doubled. From 3:00 P.M. to 6:00 P.M. the temperature rose 6 degrees to 94 degrees. What was the temperature at 10:00 A.M. that morning?
A. 37 degrees
B. 43 degrees
C. 51 degrees
D. 81 degrees
Answer: A
Mathematics
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Solve the problem.There are 6 finalists in a singing competition. If a person guesses randomly the top three winners (in any order), what is the probability that they will guess correctly?
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.x - y + z = 1x + y + z = -1x + y - z = 9
A. (5, -5, -1) B. (-5, 5, -1) C. (5, -1, -5) D. No solution
Mathematics
Determine whether the function is continuous.
Mathematics
Simplify the expression.4x + 14x
A. 56x B. 18x2 C. 36x D. 18x
Mathematics