Determine whether the sequence is arithmetic.5, -15, 45, -135, 405, ...
A. Arithmetic
B. Not arithmetic
Answer: B
Mathematics
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Find the approximate slope of the line that contains the two given points. Round your result to the second decimal place. State whether the line is increasing, decreasing, horizontal, or vertical.(-7.6, 4.6) and (-6.6, -7.8)
A. -12.40; increasing B. 12.40; increasing C. -12.40; decreasing D. -0.08; decreasing
Mathematics
Provide an appropriate response.Add the fractions and reduce: 
+ 
+ 
A. 
B. 
C. 
D. 
Mathematics
Find the phase shift or vertical shift as requested.Find the phase shift of y = -5 sin 
A. 
B. 
C. -?
D. 
Mathematics
Find the standard equation of the parabola that satisfies the given conditions. Vertex: (-3, 2); directrix: y = 7
A. (x + 3)2 = -20(y - 2) B. (y + 3)2 = -20(x - 2) C. (y + 3)2 = 8(x - 2) D. (x + 3)2 = -20(y + 2)
Mathematics