The surface area of the given shape is 285.01 ft²
<h3>Surface area of a cone </h3>
From the question, we are to calculate the surface area of the given shape.
The given shape in the diagram is a cone.
The surface area of a cone is given by the formula,

Where S is the surface area
r is the radius
and
is the slant height
First, we will calculate the slant height of the cone
(<em>Pythagorean theorem</em>)




∴ The slant height is 10.6 ft
Now, for the surface area




S ≅ 285.01 ft²
Hence, the surface area of the given shape is 285.01 ft²
Learn more on Calculating surface area of a cone here: brainly.com/question/27812847
#SPJ1
Answer:x^3+2x^2+4x-ax^2-2ax-4a
Step-by-step explanation:
Answer:
subtracting 7 from 12
Step-by-step explanation:
That would be most efficient. Subtracting seven from twelve will quickly give you your value of x without moving the x itself. And there's no negatives