Answer:
V=201.06 ft²
Step-by-step explanation:
V=
r²h
V=
2²16
V=64
V=201.06
42+35+32+51=160
160/4=40
C
Also some one please answer my history question!!!!
Answer:
1277.026
Step-by-step explanation:
What this question is asking is the difference between 3225 and 1947.974. To do this you subtract. 3225-1947.974. You get 1277.026 Deg F.
<em>Options:</em>
<em>Rotation of 180° about point B
</em>
<em>Rotation of 90° about point b
</em>
<em>Reflection over the x-axis
</em>
<em>Translation down 2 units</em>
<em></em>
Answer:
Rotation of 180° about point B
<em></em>
Step-by-step explanation:
Considering coordinates of point B
Assume the coordinates of the line at point B is (x,y)
i.e. 
First, we need to determine the slope at point B
Taking coordinates about the origin.
The slope of B is:

Where
--- origin

becomes


Taking the options one after the other:
Option A.
When rotated by 180°, the resulting coordinates of B would be

Taking the slope of B'
The slope of B is:

Where
--- origin

becomes



Notice that the slope of B and B' is the same;

<em>Hence:</em>
<em>Rotation of 180° about point B answers the question</em>
<em></em>
<em>There's no need to check for other options</em>