Provide an appropriate response.Determine whether the graphs of 7x - y = - 10 and y = 
x + 15 are parallel lines, perpendicular lines, or neither.
A. parallel
B. neither
C. perpendicular
Answer: B
Mathematics
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For what values of x does the series converge absolutely?
A. -7 < x < -5 B. x = -6 C. x = ±6 D. x = 6
Mathematics
Solve the given equation for x.y = 8 cos 3x
A. x = 
cos-1 
B. x = 
cos-1 
C. x = 8 cos-1 
D. x = 3 cos-1 
Mathematics
Provide an appropriate response.Consider the matrixA = 
Without using a calculator, determine whether A-1 exists. Explain your reasoning.
What will be an ideal response?
Mathematics
Use the problem-solving strategy to solve the problem and find the unknown number.If 3 times a number is added to -10, the result is equal to 13 times the number.
A. 16 B. 1 C. -16 D. -1
Mathematics