Find the center and radius of the circle.x2 - 4x + y2 + 6y - 5 = 0
A. Center: (-2, 3); Radius: 3
B. Center: (2, -3); Radius: 3
C. Center: (2, -3); Radius: 18
D. Center: (-2, 3); Radius: 18
Answer: B
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Calculate the derivative of the function. Then find the value of the derivative as specified.
t = 4 if s = t2 - t
A. 
= 2 - t; 
t = 4
= -2
B. 
= t - 1; 
t = 4
= 3
C. 
= 2t - 1; 
t = 4
= 7
D. 
= 2t + 1; 
t = 4
= 9
Solve the system. If there is an unlimited number of solutions, find one of them.2x + 6y + 8z = 126x + 3y + 4z = -21x + y + z = -6
A. x = 3, y = 1, z = -6 B. x = -6, y = 3, z = 1 C. Unlimited: x = -6, y = 1, z = 3 D. Inconsistent
Write the numeral as an Egyptian numeral.3067
A. 
B. 
C. 
D. 
Find the center (h, k) and radius r of the circle with the given equation. x2 - 8x + 16 + y2 + 4y + 4 = 9
A. (h, k) = (2, -4); r = 9 B. (h, k) = (4, -2); r = 3 C. (h, k) = (-4, 2); r = 9 D. (h, k) = (-2, 4); r = 3