Answer: The system consists of parallel lines
Step-by-step explanation:
Given system of lines :
![3y-x=-7](https://tex.z-dn.net/?f=3y-x%3D-7)
Substitute
in
, we get
, which is not true.
That means , system has no solution.
i.e. they are representing parallel lines. [Parallel lines do not intersect and hence they do not have solution.]
I don’t see the questions?!
The polynomial cannot be factored in because it exists prime. Since 112 exists not a perfect square number so we cannot estimate the factors of the given equation.
<h3>What is a quadratic equation?</h3>
In a quadratic equation ax² + bx + c = 0
when (b² - 4ac) exists a perfect square only then we can factorize the equation.
In the given equation x² - 8x - 12 we have to determine the value of
b² - 4ac
From the equation, we get b = -8 and c = -12
b²- 4ac = (-8)² - 4(1)(-12)
= 64 + 48 = 112
Since 112 exists not a perfect square number so we can not estimate the factors of the given equation.
To learn more about quadratic equation refer to:
brainly.com/question/1214333
#SPJ4
70 is the answer have a nice day
Answer:
D. ![p(x)=7x-20](https://tex.z-dn.net/?f=p%28x%29%3D7x-20)
Step-by-step explanation:
![r(x) = 12x\\c(x) = 5x + 20\\p(x) = r(x)-c(x)\\p(x)=12x-(5x+20)\\p(x)=12x-5x-20\\p(x)=7x-20](https://tex.z-dn.net/?f=r%28x%29%20%3D%2012x%5C%5Cc%28x%29%20%3D%205x%20%2B%2020%5C%5Cp%28x%29%20%3D%20r%28x%29-c%28x%29%5C%5Cp%28x%29%3D12x-%285x%2B20%29%5C%5Cp%28x%29%3D12x-5x-20%5C%5Cp%28x%29%3D7x-20)
Simply subtract the two functions from each other and simplify to get the result.