Solve the system by substitution, if possible.
A) (9, –2)
B) (6, 3)
C) (–3, 10)
D) (3, 6)
E) no solutions
D) (3, 6)
Mathematics
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Find dy for the given values of x and ?x.y = 2x + 3; x = 18, ?x = 0.5
A. 0.1 B. 1 C. 0.5 D. 5
Mathematics
Find the limit, if it exists.
?
?
A. - 23 B. - 24 C. - 21 D. - 30 E. The limit does not exist
Mathematics
Multiply.
? 
A. 
B. 
i
C. - 
i
D. - 
Mathematics
Factor the polynomial.729y3 - 343
A. (9y + 7)(81y2 - 63y + 49) B. (729y - 7)(y2 + 63y + 49) C. (9y - 7)(81y2 + 49) D. (9y - 7)(81y2 + 63y + 49)
Mathematics