x and y are the packs of organic and inorganic fertilizer, respectively.
pounds of nitrogen added = 2x + 6y = 120
pounds of potassium added = 3x + 2y = 54
eliminate the y terms. subtract the first equation from 3 times the second equation.
9x + 6y = 162
-2x - 6y = -120
------------------
7x = 42
x = 6
y = 18
<span><span>The first step is to find the vertex. You do this by using the formula </span>
. <span>
Plug in b and a into the equation:
</span>

<span>
You get
</span>

<span>
So, it takes
5.5 seconds to get to
504 feet</span><span>
</span></span>
2+3=5 and 4+1.5=2SO BY ADDIDING IS 9
Answer:
3
Step-by-step explanation:
To solve f(-1), entails to replace x by -1 in the function
f(-1)= (-1)^2 - (-1)+ 1
= 1 + 1 + 1
= 3