Answer: Which three-dimensional figure is formed by the rotation given?.
Step-by-step explanation:
solid of rotation. The dashed line is the axis of rotation for the solid of rotation formed by rotating the green triangle. A cone
Answer: 
Step-by-step explanation:
For this exercise is necessary to remember the following formula:

Where "V" is the speed, "d" is the distance and "t" is the time.
In this case you must solve for the time, then:

Based on the information provided in the exercise, you can identify that:

Therefore, knowing this, you can make the substitution into the formula
.
Through this procedure you get that the equation that can be used to find the amount of hours "h" that it will take Sandra to drive "m" miles at her constant speed, is:

Answer:
The midpoint of a line segment joining (a, b) and (c,d) is given by the formula 
Step-by-step explanation:
If point <em>M </em>in the figure lies midway between points
and
, point <em>M</em> is called the midpoint of segment. To find the coordinates of <em>M</em>, we average the x-coordinates and average the y-coordinates of P and Q.
So the the midpoint of the line segment with endpoints at (a,b) and (c,d) is the point with coordinates of

You have to use this equation the a=5, h=4 and b=9 and you should get the answer of 28