Which label corresponds to the ordered pair (4, 3).



a.  I

b.  none

c.  II

d.  V

e.  VIII


c.  II

Mathematics

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Solve the problem.A piece of land is shaped like a right triangle. Two people start at the right angle of the triangle at the same time, and walk at the same speed along different legs of the triangle. If the area formed by the positions of the two people and their starting point (the right angle) is changing at  then how fast are the people moving when they are  from the right angle? (Round your answer to two decimal places.)

A. 12.50 m/s B. 0.40 m/s C. 0.20 m/s D. 0.80 m/s

Mathematics

Solve the problem.A wooden block sitting at rest on a flat, level board will just begin to slide when the board is tilted up to a critical angle of inclination, ?s . An experiment that determines this critical angle can be used to find the coefficient of static friction, ?s , for the block on the board by using the relation   Rewrite this relation using a quotient identity.

A. ?s = tan2 ?s B. ?s = cot ?s C. ?s = sec ?s D. ?s = tan ?s

Mathematics

Choose the correct response.What is the speed of a plane that travels at a rate of 503 mph into a wind of r mph?

A. r - 503 mph
B. 503 + r mph
C.  mph
D. 503 - r mph

Mathematics

Solve the problem.Find the value of k so that the graph of 27y + kx = 4 and the line containing the points (5, -8) and (2, 4) are perpendicular.

A. k = 6.75 B. k = -6.75 C. k = 108 D. k = -108

Mathematics