Answer:
dd
Step-by-step explanation:
Answer:
-6r -5
Step-by-step explanation:
-3r+7-3r-12
Combine like terms
-3r -3r +7-12
-6r -5
Let

be the radius of the cone's base and

the slant height.
The surface area of a cone is

If the radius is quadrupled (

) and the slant height scaled by a factor of

, then the new area is

When we are multiplying our 10's, we are basically adding another 10 each time. Since the number grid is in rows of 10, adding another 10 is the same as moving down one row, which makes a straight column.
Plan DCB
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