Answer:
Step-by-step explanation:
To find the values of for which, the value of
belongs to
,we solve the inequality;
We multiply through by 8 to obtain;
We subtract 3 to get
Divide through by -1 to obtain;
Or
Emily is saving $300 a month for a $9,000 down payment on a new car. she will have her down payment total in 18 months. she got
2 answers:
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Given:
A triangle with vertices A(0,0), B(6,0), and C(0,9) is rotated 360 about the y-axis.
To find:
The volume of the figure.
Solution:
Points A(0,0) and C(0,9) lies on the y-axis. Length of AC is 9 units.
Points A(0,0) and B(6,0) lies on the x-axis. Length of AB is 6 units.
If a triangle with vertices A(0,0), B(6,0), and C(0,9) is rotated 360 about the y-axis, then it will form a cone with radius 6 units and height 9 units.
Volume of a cone is
where, r is radius of the base and h is vertical height of the cone.
Putting r=6 and h=9, we get
Therefore, the volume of the figure is sq. units.