Find the midpoint of the line segment with the given end points.(-8
, -7
) and (-5
, -4
)
A. (-13
, -11
)
B. 
C. 
D. 
Answer: C
Mathematics
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Determine the degree of the given polynomial.3xy + 7y
A. 0 B. 2 C. 11 D. 3 E. 1
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Find the curvature of the curve r(t).r(t) = (9t + 6)i - 2j + (3 - 
t2)k
A. ? = 9
B. ? = 9
3/2
C. ? = 
D. ? = 
Mathematics
Use algebraic and/or graphical methods to solve the inequality.
+ 
? - 
A. -4 ? x < -2 or -2 < x ? 1 B. x ? -2 or 1 ? x < 2 C. -4 ? x < -2 or 1 ? x < 2 D. x ? -4 or -2 < x ? 1 or x > 2
Mathematics
Factor by grouping.20x4 - 15x2 + 8x2 - 6
A. (5x2 + 2)(4x2 - 3) B. (5x4 + 2)(4x - 3) C. (5x2 - 2)(4x2 + 3) D. (20x2 - 2)(x2 + 3)
Mathematics