Obtain the five-number summary for the given data.The National Education Association collects data on the number of years of teaching experience of high-school teachers. A sample taken this year of 19  teachers yielded the following data on number of years of teaching experience.

A. 1, 6, 19, 26, 33
B. 1, 5.25, 18.0, 25.25, 33
C. 1, 5.25, 19, 25.25, 33
D. 1, 6, 18.0, 26, 33


Answer: A

Mathematics

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Solve the problem.The price for a product is given by p = 4050 - 0.5x2, where x is the number of units sold. How many units must be sold to give positive revenue?

A. 0 units < x < 45 units B. x > 90 units C. 0 units < x < 90 units D. x < 8100 units

Mathematics

Find the sum. Simplify when necessary.-9 + (-6)

A. -3 B. -15 C. 15 D. 3

Mathematics

Evaluate the series, if it converges.6 +  +  +  + . . .

A.
B. 10
C. 4
D. Does not converge

Mathematics

Find the indicated relative minimum or maximum.Maximum of f(x, y, z) = xy + z,subject to x2 + y2 + z2 = 1

A. f(1, 1, 0) = 1 B. f(0, 1, 0) = 1 C. f(1, 1, 1) = 1 D. f(0, 0, 1) = 1

Mathematics