Write the standard form of the equation of the circle. 
A. (x - 1)2 + (y - 3)2 = 25
B. (x + 3)2 + (y + 1)2 = 25
C. (x + 1)2 + (y + 3)2 = 25
D. (x - 3)2 + (y - 1)2 = 25
Answer: D
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Solve.A railroad tunnel is shaped like a semi-ellipse. The height of the tunnel at the center is 16 ft and the vertical clearance must be 12 ft at a point 14 ft from the center. Find an equation for the ellipse.
A. +
= 1
B. +
= 1
C. +
= 1
D. +
= 1
Write interval notation.{ x ? -3 ? x < 1 }
A. [-3, 1] B. (-3, 1] C. (-3, 1) D. [-3, 1)
Use long division to find the quotient and check.1956 ÷ 12
A. 163 B. 164 R 2 C. 164 D. 163 R 3
Provide an appropriate response.If one whole number is subtracted from another whole number, what can you say about the result, given that the two numbers are not the same?
A. The result could be either a positive or negative integer, but will not be equal to zero. B. The result will be a negative integer. C. The result could be any integer, including zero. D. The result will be a whole number.