Take a look at the function
. You can simplify it to
. If x=0, then y=2 and when y=0, x=3. You obtain two points (0,2) and (3,0) that lie on the line
.
Since
, the line
should belong to the shaded area.
Now take point (0,0). Since
, you can conclude that point (0,0) belongs to the shaded area.Using all these thoughts, you can make a conclusion that the correct choice is B.
Answer:
Surface area of square pyramid is computed as follows:
A = a² + a*√(a² + 4h²)
where <em>a</em> is the base length and <em>h</em> is the height.
If a model of the square pyramid is scaled down by a factor of x, then the surface area will be:
A' = (a/x)² + (a/x)*√[(a/x)² + 4(h/x)²]
A' = a²/x² + a/x * √[a²/x² + 4h²/x²]
A' = a²/x² + a/x * √[(a² + 4h²)/x²]
A' = a²/x² + a/x * √(a² + 4h²)/√x²
A' = a²/x² + a/x² * √(a² + 4h²)
A' = 1/x² * [a² + a*√(a² + 4h²)]
A' = 1/x² * A
That is, the surface area will be 1/x² times the original surface area. If h = 25 ft and a = 15 ft:
A = 15² + 15*√(15² + 4(25)²) = 1008.02 ft²
The factor is not mentioned in the question, nevertheless, the area will be 1008.02/factor² ft²
Just incase u need the work. Its C.
Area of entire circle = (pi)(r^2) and r = d/2:
<span>A =(3.142)((3.2^2) = 32.17m^2 </span>
<span>Portion of circle in sector: </span>
<span>185degrees/360degrees = 0.514 </span>
<span>Multiply: </span>
<span>0.514(32.17m^2) = 16.5m^2 to 1 dp </span>
Yeah, pretty sure it’s c because it would be pounds add up to the cost understand?