Graph the step function.Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x). Use the interval (0, 4].

A.
  
B.  
  
C.

D.


Answer: B

Mathematics

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Solve the problem.Find the equation for the tangent plane to the surface    at the point  

A. 2x + y - 11z = 1 B. 2x + y - 11z = -8 C. -8x - 6y - z = -11 D. -8x - 6y - z = -16

Mathematics

Graph the equation. Select integers for x, -3 ? x ? 3.y = 4x - 5

A.

B.

C.

D.

Mathematics

Construct the perpendicular from A to line 1.

Mathematics

Find the area of the figure using determinants.

A. 18.0 B. 19.0 C. 18.5 D. 17.25

Mathematics