Solve by the substitution method.
= 56x = 10 + 15y
A. 
B. 
C. {(x, y)|
= 5}
D. ?
Answer: A
Mathematics
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Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 7? B. 196? C. 98? D. 49?
Mathematics
Evaluate the integral.
A. ln 
+ C
B. 2 ln 
+ C
C. 2 ln 
+ C
D. 2 sech2 
+ C
Mathematics
Plot the points in the Cartesian plane. ? (-4, 1), (-5, -2), (5, 4), (2, -4) ?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Evaluate the function.Find f(k - 1) when f(x) = 2x2 + 2x + 5
A. f(k - 1) = 2k2 - 2k + 5 B. f(k - 1) = -2k2 + 2k + 5 C. f(k - 1) = 2k2 + 12k + 9 D. f(k - 1) = 2k2 - 2k + 9
Mathematics