4x^2-81y^2 is NOT a perfect square trinomial, factored. You know this because if you factor this to (2x+9y)(2x-9y) then you will see that the signs between terms in the parenthesis are DIFFERENT.

Step-by-step explanation:

Taking notes as you go through the course will help you retain and process the information much better than getting "help" from a site that is probably badly named.

4 0

3 years ago

SHOW WORK

mote1985 [20]

1). The answer is 86. .29n =24.94
In order to obtain this you need to divide both sides by .29

2) The answer is 25%
35/140 x 100% =25%

3) The answer is $70
So if 100% of 40 is 40 and 75% of 40 is 30 than you need to add 40 + 30 which equals 70.

Hope this helps :)

4 0

3 years ago