Find the sum.Find the sum of the first 20 terms of the arithmetic sequence: -1, 6, 13, 20, . . .
A. 139
B. 1315
C. 1310
D. 1380
Answer: C
Mathematics
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Perform the division.(x2 - 64) ÷ (x - 8)
A. x + 64 B. x + 8 C. x - 64 D. x2 - 8
Mathematics
Find the quadratic function that fits the set of data points.(-3, 1), (2, -24), (-2, 0)
A. f(x) = -x2 - 6x - 8 B. f(x) = x2 + 6x + 1 C. f(x) = 2x2 - 6x + 8 D. f(x) = -x2 + 3x + 1
Mathematics
Write decimal notation.
A. 97.0045 B. 97.045 C. 97.45 D. 101.5
Mathematics
Provide an appropriate response.If an ellipse has vertices at (-3, 0), (3, 0), (0, 1), and (0, -1), what is its domain? What is its range?
A. Domain: [-1, 1]; Range: [-3, 3] B. Domain: [-3, 1]; Range: [-1, 3] C. Domain: [-3, 3]; Range: [-1, 1] D. Domain: [0, 3]; Range: [0, 1]
Mathematics