Find two possible missing terms so that the expression is a perfect square trinomial.x2 + 
+ 
A. - 
x, 
x
B. -2x, 2x
C. -x, x
D. - 
, 
Answer: C
Mathematics
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Simplify by combining like terms.6x2 + 3xy - 9x2 + 12 + 2xy
A. -3x2 + 5xy + 12 B. -3x2 - 5xy + 12 C. 5x2 + 5xy - 12 D. 5x2 + 5xy + 12
Mathematics
Find the first partial derivatives of the function.
?
?
A. 
?
B. ?
?
C. ?
?
D. ?
?
Mathematics
Find the rate, or speed, as a ratio of distance to time. Round to the nearest hundredth when necessary.48 km, 6 days
A. 48 km/day B. 6.66 km/day C. 8 km/day D. 6 km/day
Mathematics
Evaluate the definite integral.
A. 10 B. 25 C. 20 D. 50
Mathematics