Find the value of the expression without using a calculator.2log27

A. 7
B. 128
C. 49
D. 2


Answer: A

Mathematics

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Provide the proper response.If an ellipse has vertices at (-7, 0), (7, 0), (0, 9), and (0, -9), what is its domain? What is its range?

A. Domain: [-7, 7]; Range: [-9, 9] B. Domain: [-7, 9]; Range: [-9, 7] C. Domain: [-9, 9]; Range: [-7, 7] D. Domain: [0, 7]; Range: [0, 9]

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Solve the problem.A cylindrical can has a height of 5 units. The surface area of each circular end of the can is approximately 3.14r2, where r is the radius. The surface area of the wall of the can is approximately 31.4r. Find the polynomial that represents the total surface area.

A. (3.14r2 + 31.4r) sq units B. (6.28r2 + 31.4r) sq units C. (3.14r2 + 15.7r) sq units D. (6.28r2 + 15.7r) sq units

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Find the inverse of the one-to-one function. ? ? f -1(x) = __________

What will be an ideal response?

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Solve.89,769.7 = y + 9971

A. 79,899.2 B. 78,798.7 C. 79,758.7 D. 79,798.7

Mathematics