× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
This topic contains 2 attachments.
Home Q & A Board Science-Related Homework Help Mathematics Pre-calculus and Functions
New Topic  
ccnnieeee ccnnieeee
wrote...
Posts: 21
Rep: 0 0
5 years ago
Please see the attachments
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
Read 197 times
1 Reply

Related Topics

Replies
wrote...
#1
Educator
5 years ago
Hi ccnnieeee

Please type out the question (or copy-paste it) next time, would appreciate it a lot! I've answered question (1) underneath.

So, they want the volume. V = l*w*h for a rectangular prism

L = 12 - 2x
W = 9 - 2x
H = x

Substitute into the formula for volume:

f(x) = V = (12 - 2x)(9 - 2x)(x)
f(x) = 4x^3 - 42x^2 + 108x

Attached for clarity:

Also, if you're being asked to maximize, use this video:
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1082 People Browsing
 133 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 133
  
 174
  
 861
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 249
Previous poll results: How often do you eat-out per week?