Find the center and radius of the circle by completing the square.x2 + y2 - 2x - 10y + 10 = 0
A. (5, 1); r = 4
B. (-5, -1); r = 16
C. (-1, -5); r = 16
D. (1, 5); r = 4
Answer: D
Mathematics
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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(24a)5
A. 220a5 B. 29a C. 24a5 D. 29a5
Mathematics
Find all the second order partial derivatives of the given function.f(x, y) = ln (x2y - x)
A. 
= 
; 
= 
; 
= 
= 
B. 
= 
; 
= - 
; 
= 
= - 
C. 
= 
; 
= - 
; 
= 
= - 
D. 
= 
; 
= - 
; 
= 
= - 
Mathematics
Solve the problem.The length and width of two sides of a rectangle are consecutive odd integers. The area of the rectangle is 35 square units. Find the dimensions of the rectangle.
A. 5 by 7 B. -7 by -5 C. 4 by 5 D. 7 by 9
Mathematics
Find all solutions of the equation in the interval [0, 2?).cos 2x = 
A. 
B. 
C. ?
D. 
Mathematics