Find a quadratic function that best fits the data. Give answers to the nearest hundredth.
A. y = 0.29 - 6.14x + 12
B. y = -0.83x2 + 1.68x + 12
C. y = 0.83x2 + 1.68x + 12
D. y = -x2 + 12
Answer: B
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Solve the equation.
- 
= 
A. z = -4 B. ? C. z = 5 D. z = 4
Solve the problem.The length of the diagonal of a rectangle is given by 
where L and W are the length and width of the rectangle. What is the length of the diagonal, D, of a rectangle that is 63 inches long and 34 inches wide? Round your answer to the nearest tenth of an inch, if necessary.
A. 46.3 in. B. 71.6 in. C. 53 in. D. 9.8 in.
Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 + 6y - 27 = 0
A. x2 + (y - 3)2 = 36 center (0, 3), r = 6 B. (x + 3)2 + y2 = 36 center (-3, 0), r = 6 C. x2 + (y + 3)2 = 36 center (0, -3), r = 6 D. x2 + (y + 3)2 = 36 center (0, 3), r = 6
Give the domain and range for the rational function. Use interval notation.f(x) = 
+ 3
A. Domain: (-?, 0) ? (0, ?); Range: (-?, 3) ? (3, ?) B. Domain: (-?, 2) ? (2, ?); Range: (-?, 3) ? (3, ?) C. Domain: (-?, 3) ? (3, ?); Range: (-?, 0) ? (0, ?) D. Domain: (-?, 0) ? (0, ?); Range: (-?, -3) ? (-3, ?)