Determine if the lines parallel, perpendicular, or neither.L1: 9x + 3y = 12L2: 21x + 7y = 31
A. perpendicular
B. neither
C. parallel
Answer: C
Mathematics
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Write the slope-intercept form of the equation for the line passing through the given pair of points.(-9, 7) and (0, 3)
A. y = - 
x + 3
B. y = - 
x + 3
C. y = 
x + 3
D. y = 
x + 3
Mathematics
Use the sum-of-the-years'-digits method of depreciation. Round to the nearest dollar.Find the book value at the end of the second year for an air filtration system which cost $6,300, has a life of 5 years, and an estimated scrap value of $630.
A. $3,402 B. $2,520 C. $4,032 D. $2,898
Mathematics
Solve.x2 - 6x + 9 = 9
A. 12 B. 0, -6 C. 6, 0 D. 3, -3
Mathematics
Solve the system of equations by graphing.
?
?
A. (-4, 4) B. (4, -4) C. (-3, 5) D. (4, 1) E. (3, 11)
Mathematics