Write the imaginary number using i.

A. ±7 
B. 7
C. -7
D. i


Answer: B

Mathematics

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Find the root. Assume that variables represent nonnegative values.

A. 7t10 B. 6t5 C. 6t10 D. 7t5

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Solve.The area of a square with a side of length x is given by the function  The area of a circle with a radius equal to the length of the side of the square is given by the function  Determine a function h that gives the total area of the two geometric figures.

A. h(x) = ?x4 B. h(x) = 2x2 C. h(x) = (? + 1)x4 D. h(x) = (? + 1)x2

Mathematics

Use a graphing calculator to plot the data and find the quadratic function of best fit.Southern Granite and Marble sells granite and marble by the square yard. One of its granite patterns is price sensitive. If the price is too low, customers perceive that it has less quality. If the price is too high, customers perceive that it is overpriced. The company conducted a pricing test with potential customers. The following data was collected. Use a graphing calculator to plot the data. What is the quadratic function of best fit?

A. B(x) = -0.243x2 + 3.115x - 22.13 B. B(x) = -0.0243x2 + 3.115x - 22.13 C. B(x) = 0.0243x2 - 3.115x - 22.13 D. B(x) = -0.0243x2 + 3.115x + 22.13

Mathematics

Use the partial sum formula to find the partial sum of the given arithmetic sequence.Find the sum of the first 65 terms of the arithmetic sequence: -10, -7, -4, -1, . . . .

A. 5688 B. 5250 C. 5590 D. 5504

Mathematics