Factor the difference of two squares completely.2x2 - 18
A. 2(x - 3)2
B. 2(x + 3)(x - 3)
C. 2(x + 3)2
D. Prime
Answer: B
Mathematics
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Determine whether the lines are parallel, perpendicular, or neither.7x + 9y = -15
x + y = -13
A. parallel B. perpendicular C. neither
Mathematics
Find the slope and the y-intercept of the line.3x + 4y = 25
A. m = - 
; y-intercept: 
B. m = 
; y-intercept: (0, 25)
C. m = 
; y-intercept: 
D. m = - 
; y-intercept: (0, 4)
Mathematics
Perform the indicated operation.62 cm - 49 mm (in centimeters)
A. 61.51 cm B. 571 cm C. 57.1 cm D. 13 cm
Mathematics
The figure shows an angle ? in standard position with its terminal side intersecting the unit circle. Evaluate the indicated circular function value of ?.Find cot ?.
A. - 
B. 
C. - 
D. - 
Mathematics