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OpenStudy (anonymous):
Directrix (directrix):
Just a minute.
OpenStudy (anonymous):
alright
Directrix (directrix):
What are the instructions on this?
Directrix (directrix):
@desfields901
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OpenStudy (anonymous):
Find the volume of the lunch box shown here
OpenStudy (anonymous):
had to go back and look
Directrix (directrix):
The lunch box is a rectangular solid with half a cylinder on top.
The task is to get the volume of the rectangular solid and then to add half the volume of the cylinder.
Directrix (directrix):
For the rectangular solid, multiply 10*6*6 to get its volume.
OpenStudy (anonymous):
360 in
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Directrix (directrix):
Cubic inches
Directrix (directrix):
For the cylinder,
V = π * 3² * 10
Directrix (directrix):
Is the answer to be left in terms of pi?
OpenStudy (anonymous):
a.
507 in3
c.
501 in3
b.
522 in3
d.
516 in3
OpenStudy (anonymous):
these are the options
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Directrix (directrix):
No, so approximate for pi
OpenStudy (anonymous):
282.74
OpenStudy (anonymous):
im guessing i add them
Directrix (directrix):
Not yet. That is half a cylinder on top of the lunch box. So, divide 282.74 by 2 and then add what you get to the 360
OpenStudy (anonymous):
501in^3
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Directrix (directrix):
Yes, but look at the option list. It goes A, C, B, D.
So, check to see what is out of order in that list.
OpenStudy (anonymous):
c
Directrix (directrix):
Why is c ahead of b in the list? Look in your textbook
OpenStudy (anonymous):
the choices are horizontal so when you copy and paste them they get out of roder
Directrix (directrix):
In the book, which letter goes with 501?
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OpenStudy (anonymous):
choice c is 501
Directrix (directrix):
Okay, good. That sort of thing can mess you up on a test.