All Answers 356020 Answers

20t x 36m / 4800 ft²     =    .15  t-m /ft²

.15 t-m /ft²     x  4200 ft²  /9 t   = 70 minutes  

I cannot answer the second one since its the wrighting problem but for the first one its bassicly the same as the spray painting one. You just find out how many gallons needed and your done!

Your welcome!

Yes, exactly! :) 

It's locked for me but I got it anyway. Thanks!

Thx, Impasta   .....exactly correct  !!!!

LOL! :)

AELN  =  shorthand  for AnExtremelyLong Name.....LOL!!!!

Find their LCM, that will be the answer.

My abbreviation lol

720 minutes because it's 36*20

That is kinda like my idea! Thank you CPill! (btw, who is Allen)?

nchang. thank you ! my point. we're tryna help each other out here.

I like your method better! It insures 100% accuracy!

Agree  !!!!

I'm going to have to look at  AELN's  method.....very  exquisite    !!!!

(1) This is a math forum. I recommend going to brainly.

(2) We are not here to write an entire CER for you

(3) We have no idea what this question is about.

yes. exactly

Note  that  we  can  write

(1,000,000,000 ,000  - 2)^2

By  binomial expansion we have

( 1, 000,000,000,000)^2  -  4  ( 1,000,000,000,000)  +  4  =

(10^12)^2  -  4 ( 10^12)  +  4  = 

(10)^24  - 4 (10^12)  + 4  =

   1, 000,000,000,000,000,000,000,004

-                              4,000,000,000,000

 _________________________________

      999,999,999,996,000,000,000,004

11  zeros

Just as AELN  found....good job,  AELN    !!!!!

That is so clever! Thank you so much, I understand now.

STOP BEING A HYPOCRITE. YOU POSTED HOMEWORK TOO YOU KNOW. IN FACT, IT IS FROM THE SAME WEBSITE.