Use point plotting to graph the plane curve described by the given parametric equations.x = 3t, y = t + 3; -2 ? t ? 3
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the center and the radius of the circle.x2 + y2 - 4x - 6y + 13 = 4
A. (3, 2); r = 2 B. (-3, -2); r = 4 C. (-2, -3); r = 4 D. (2, 3); r = 2
Mathematics
Use the substitution formula to evaluate the integral.
A. 10 B. 20 C. 5 D. -5
Mathematics
Simplify.
A. y2
B. y4
C. y
D. 2
Mathematics
Use the given row transformation to change the matrix as indicated.
; -2 times row 2 added to row 3
A. 
B. 
C. 
D. 
Mathematics