All are correct except the bottom, it would just be 4.23 since there are no zeroes, any number times 1 is itself
Answer:
= 12.5 gallons
Step-by-step explanation:
50 gallons per 20 mins
50/20=5/2
5/2 per minute so 5 mins is
5/2 x 5 = 25/2
=12.5 gallons
Answer:
f(-5) = 22
Step-by-step explanation:
All we do is substitute x = -5 into the function.
= -3(-5) + 7
= 15 + 7
= 22
Best of Luck!
I wrote my decision on a piece of paper.
Answer:
3x^2 + 9x + 1
Or
3x ( x + 3 ) + 1
Step-by-step explanation:
(5x - 2 +3x^2 ) + (4x + 3 )
To make this a little bit more easier to read, you can remove the parentheses:
5x - 2 + 3x^2 + 4x + 3
Now, write in a way so that the like terms are next to each other:
3x^2 + 5x + 4x - 2 + 3
Now simplify the 'x' terms to get:
3x^2 + 9x - 2 + 3
Now, simplify the integers (the ones with now variables with them) to get:
3x^2 + 9x + 1
If you want, you can factor out the 3x for two of the terms to get :
3x ( x + 3 ) + 1
Therefore, your simplest form can either be 3x^2 + 9x + 1 OR 3x (x + 3 ) + 1