Determine whether the given lines are parallel, perpendicular, or neither.y = x + 7x + y = 0
A. Neither
B. Parallel
C. Perpendicular
Answer: C
Mathematics
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Determine whether the equation is an identity. If it is an identity, prove it.
= cos x + cot x
What will be an ideal response?
Mathematics
Write the corresponding augmented matrix for the system.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.
The Montgomerys borrowed $86,000 at 7.50% for 30 years to purchase a house. Find the total interest the Montomerys will pay if they pay the loan on schedule.
A. $142,794.40 B. $135,673.60 C. $130,410.40 D. $119,884.00
Mathematics
Find the angle 
(to the nearest degree).
?
__________°
Fill in the blank(s) with the appropriate word(s).
Mathematics