Find the center-radius form of the equation of the circle satisfying the given conditions.Center (-8, 0), radius 9
A. x2 + (y - 8)2 = 9
B. x2 + (y + 8)2 = 9
C. (x + 8)2 + y2 = 81
D. (x - 8)2 + y2 = 81
Answer: C
Mathematics
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Use implicit differentiation to find dy/dx and d2y/dx2.x2 + y2 = 5, at the point (2, 1)
A. 
= - 2; 
= -5
B. 
= - 2; 
= 1
C. 
= 2; 
= 5
D. 
= - 
; 
= 0
Mathematics
Solve using the quadratic formula.x2 + x + 9 = 0
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. First use the distributive property to remove any parentheses.2(5x + 8 + y)
A. 10x + 16 + 2y B. 10x + 16 + y C. 10x + 8 + 2y D. 10x + 8 + y
Mathematics
Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.
A. x1
B. x11
C. x3
D. 
Mathematics