Answer:
Step-by-step explanation:
The equation for that is
![x^2+3x=70](https://tex.z-dn.net/?f=x%5E2%2B3x%3D70)
If we subtract over the 70, we have a quadratic that we can factor to solve for the values of x that will make that equation true.
![x^2+3x-70=0](https://tex.z-dn.net/?f=x%5E2%2B3x-70%3D0)
Now we need the factors of 70 that will either add or subtract to give us the linear term of 3. The factors of 70 that will work are 10 and 7. 10 times 7 is 70, and 10 - 7 = 3:
and now we will factor by grouping:
and factor out what's common:
![x(x+10)-7(x+10)=0](https://tex.z-dn.net/?f=x%28x%2B10%29-7%28x%2B10%29%3D0)
The factor (x + 10) is common, so we will now factor that out:
![(x+10)(x-7)=0](https://tex.z-dn.net/?f=%28x%2B10%29%28x-7%29%3D0)
By the Zero Product Property, either x + 10 = 0 or x - 7 = 0, so x = -10 or 7
Those are the 2 numbers that will work.
simplifies to
100 - 30 which does in fact equal 70. OR
which simplifies to
49 + 21 which also equals 70.
So you're done!
Answer:
Rise/run rise over run
Step-by-step explanation:
y2-y1/x2-x1
Answer:
Sanchez applied 1,800 fluid ounces of herbicide to his 300 acres of corn.
Step-by-step explanation:
Let's identify what we already know:
1) Sanchez has 300 acres of corn
2) For every 1 acre, Sanchez applies 6 fluid ounces of an herbicide.
So, we need to figure out how many fluid ounces Sanchez used for the entire six acres. We can create a formula for this:
300 acres x 6 fluid ounces = x
x equals total number of fluid ounces. We multiple the number of acres by the fluid ounces, to get 1,800 fluid ounces for the entire 300 acres of corn.
Answer:
DOMAIN: 2, 5, 7
RANGE: 2.3, 2.3, 15
Step-by-step explanation:
Domain is always the first value of the set, and range is always the second value of the set. Hope it makes sense, and that it helped.
Have a good day! goodluck.