Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Answer: D
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Solve the system of equations by using substitution. 
A. x = 1, y = 0 B. x = 0, y = 1 C. x = 1, y = 1 D. x = 0, y = 0
Provide an appropriate response.A data set consists of the month of birth for 500 different people. Is it possible to calculate the average for this data set? Is it possible to find the median or the mode? Explain your answer.
What will be an ideal response?
Solve the problem.A cable TV company charges $28 for the basic service plus $5 for each movie channel. Find a linear function f(x) = mx + b whose input is the number of movie channels selected and whose output is the total cost. Find the slope-intercept form of the equation.
A. f(x) = 28x - 5 B. f(x) = 5x + 28 C. f(x) = 28x + 5 D. f(x) = 5x - 28
Solve.The angle of reflection ? of a ray from air to a medium of index n is given by Snell's Law to be sin ? = 
. Find ? if n = 
.
A. 41.8° B. 1.6° C. 138.2° D. 48.2°