Solve by the substitution method.x - 3y = 76x - 2y = 42
A. {(x, y)|x - 3y = 7}
B. ?
C. {(7, 0)}
D. {(-7, -1)}
Answer: C
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Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= secn-2 x tan x - (n - 2) 
B. 
= 
secn x tan x - 
C. 
= secn-2 x tan x + (n - 2) 
D. 
= 
secn-2 x tan x + 
Identify the multiplication model that best fits the problem. Do not solve the problem.Suppose there are 2 roads connecting town A to town B and 3 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
A. Measurement model B. Cartesian product model C. Set model D. Array model
Find the slope-intercept form of the equation of a line parallel or perpendicular to the given line and passing through the given point.Perpendicular to -6x - 7y = -46, through (3, -4)
A. y = 
x + 
B. y = - 
x - 
C. y = - 
x - 
D. y = 
x - 
Round the number to three significant digits.0.02125
Fill in the blank(s) with the appropriate word(s).