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Subject: "Geometry"     Previous Topic | Next Topic
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Conferences The CTK Exchange College math Topic #441
Reading Topic #441
Raelynn
Member since Jan-28-04
Apr-08-04, 09:03 PM (EST)
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"Geometry"
 
   Evaluate 3bc -2a to the second power when a=2, b=3 and c=4

3abc-2a to the second power
3 (3)(4)- 2 (2) to the second power
9 (4) -2 (2) to the sec.power
36 -2 (4)
36 -8
=28
==========================================
4. Find the area of the fiqure:

( I can't draw the fiqure BUT: take a small envelope and open up with the flap laying flat down. The base of the envelope is 6 ft, the side of the envelope is 4.2 and the top where you lick it draw that part in half and that is the 3 ft.)

A = LW - 1/2bh
=(4.2ft x 6 ft) - 1/2 x 6 ft x 3 ft
= 25.2 ft - 9 ft
= 24. 3 ft
is this correct?


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alexbadmin
Charter Member
1251 posts
Apr-08-04, 09:05 PM (EST)
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1. "RE: Geometry"
In response to message #0
 
   Hi:

I would suggest that you post your questions to

https://www.mathnerds.com

They promise to answer any question, and apparently they do.


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