Solve the problem.John, the tallest male in the sophomore class, has a height of 71.75 inches. The heights of sophomore males are normally distributed with mean 67.8 inches and standard deviation 2.5 inches. Determine the z-score corresponding to John's height.
A. z = 1.68
B. z = 1.48
C. z = 1.78
D. z = 1.58
Answer: D
Mathematics
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Evaluate the expression.
A. 34 B. -28 C. 14 D. 2 E. 22
Mathematics
Evaluate the definite integral.
dx
A. -2
B. 0
C. 3
D. 
Mathematics
Solve.For a resistor in a direct current circuit that does not vary its resistance, the power that a resistor must dissipate is directly proportional to the square of the voltage across the resistor. The resistor must dissipate 
watt of power when the voltage across the resistor is 8 volts. Find the power that the resistor must dissipate when the voltage across it is 24 volts.
A. 
watt
B. 
watt
C. 
watt
D. 4 watts
Mathematics
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.-8x + 16y = -16 4x + 8y = 8
A. (2, 1) B. (2, 0) C. (-2y, y) D. No solution
Mathematics