First you must have the quadratic equal to zero. In order to do this you must subtract 7 to both sides
x^2 + 20x + (100 - 7) = 7 - 7
x^2 + 20x + 93 = 0
Now you must find two numbers who's sum equals 20 and their multiplication equal 93
Are there any? NO!
This means that you have to use the formula:
In this case:
a = 1
b = 20
c = 93
^^^We must simplify √28
√28 = 2√7
so...
simplify further:
-10 + √7
or
-10 - √7
***plus/minus = ±
Hope this helped!
~Just a girl in love with Shawn Mendes
The angles are corresponding, and the lines are parallel. This means the angles are equal. What can you add to 53 to get 50°? -3.
Answer:
b
Step-by-step explanation:
Answer:
Refer to picture for number line
Step-by-step explanation:
To solve this inequality, we want to isolate the variable. We can do this my getting like terms onto one side
[add both sides by 7]
[add both sides by 3x/2]
[multiply both sides by 2]
[add]
[divide both sides by 15]
[simplify]
Now that we have out inequality, we want to graph it. Since we know that , that means we have an open circle. Since x is less than, the arrow would be pointing left.
The graph of the linear equation is a set of points in the coordinate plane that all are solutions to the equation.:)