Solve the problem.Find the average height of the paraboloid  above the annular region  in the .

A. 10
B. 18
C. 26
D. 12


Answer: A

Mathematics

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Solve the problem.The growth in population of a city can be seen using the formula p(t) = 2196e0.005t, where t is the number of years. According to this formula, how many years will it take the population to double its year 0 value? Round to the nearest tenth of a year.

A. 277.2 yr B. 138.6 yr C. 104.0 yr D. 69.3 yr

Mathematics

Solve the system by the addition method.7x + 9y = 99x - 3y = -3

A. {(1, 1)} B. {(0, 0)} C. {(0, 1)} D. {(1, 0)}

Mathematics

Solve. Remember to insert units in your answer.A package of trail mix contains 0.5 kg of nuts, 0.17 kg of chocolate bits, and 700 g of dried fruit. Find the total weight of the package.

A. 1.37 kg B. 7.67 kg C. 700.67 kg D. 70.67 kg

Mathematics

Multiply.(3x - y + 4z)(3x - y - 4z)

A. 9x2 - 6xy + y2 + 24xz + 8yz - 16z2 B. 9x2 + y2 + 24xz + 8yz - 16z2 C. 9x2 + y2 - 16z2 D. 9x2 - 6xy + y2 - 16z2

Mathematics