× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
o
5
4
m
4
b
4
x
4
a
4
l
4
t
4
S
4
m
3
s
3
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 190 times
1 Reply

Related Topics

Replies
wrote...
Valued Member
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      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1142 People Browsing
Related Images
  
 878
  
 14827
  
 487
Your Opinion
Which 'study break' activity do you find most distracting?
Votes: 741

Previous poll results: What's your favorite math subject?