Find k such that the function is a probability density function over the given interval.f(x) = kx3, 0 ? x ? 2
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use similar triangles to help solve the problem.
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An airplane ascends 160 feet as it flies a horizontal distance of 1,000 feet. How much altitude will it gain as it flies a horizontal distance of 1 mile? (Hint: 5,280 feet = 1 mile.) Round your answer to the nearest integer.
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A. x = 870 ft B. x = 813 ft C. x = 845 ft D. x = 885 ft E. x = 833 ft
Mathematics
Divide.204,379 ÷ 470
A. 434 B. 399 C. 434 R 279 D. 434 R 399
Mathematics
Solve the equation by completing the square.x2 + 10x = -16
A. {-2, -8} B. {2, 8} C. {2, -8} D. {-2, 8}
Mathematics
Solve the problem.Find the median for the scores: 261, 410, 71, 432, 141, 218.
A. 261 B. 239.5 C. 218 D. 219.5
Mathematics