Solve.In a practice run, a race car driver's speed is clocked at 145.924 mph at the end of his first lap, and at 162.455 mph at the end of the next lap. How much faster was he driving at the end of the second lap?
A. 16.541 mph
B. 15.531 mph
C. 16.631 mph
D. 16.531 mph
Answer: D
Mathematics
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What is the median for the following set of numbers?
48, 54, 56, 62, 68, 70, 72, 74, 75, 76, 80, 81, 83, 85, 90, 94.
Mathematics
Find the product.(x + 4y)(3x - 7y)
A. x2 + 5xy - 28y2 B. x2 + 5xy + 5y2 C. 3x2 + 5xy + 5y2 D. 3x2 + 5xy - 28y2
Mathematics
Solve the system using matrices. x + y + z = -2 x - y + 3z = -42x + y + z = 1
A. (-3, -2, 3) B. (3, -2, -3) C. No solution D. (-3, 3, -2)
Mathematics
Identify the numbers from the given list that belong to the indicated set. 5, 
, -11, 0, 
, - 
, 1.7, 
Integers
A. 5, -11, 0, 
B. 5, 0, 
C. 5, -11, 0
D. 5, 0
Mathematics