Answer:
Approximately 439.6 square millimeters.
Step-by-step explanation:
The formula for the surface area of a cone is the following:

Where, <em>r </em>is the radius and <em>l</em> is the slant height.
The radius is 7 and the slant height is 13. We also use 3.14 for π Thus:

Answer:
37
Step-by-step explanation:
35^2+12^2=1369
√1369=37
Answer:
Graph 1: not a function
Graph 2: is a function
Graph 3: is a function
Step-by-step explanation:
Use the vertical line test. Draw a straight line anywhere on your graph. if it passes over 2 points or more on your graph then it's not a function