Hello :
<span>(3x²+kx-1) is a quadratic polynome when : a =3 , b=k , c= -1
the discriminat </span>Δ = b²-4ac ≥ 0 because ac = -3 <span><<span> 0
-4ac </span></span>>0 and b²<span>≥0
the </span> quadratic polynome has :2 solutios or 1 solution (Change of sign)
conclusion : <span>is never always positive for any value of k</span>
Answer:
<em>105.</em>
<em />
Step-by-step explanation:
7rows × 20seats = <em>140seats total</em>
7rows × 5seats = <em>35seats reserved</em>
140total - 35reserved = 105open
This is an example of what you are needing!!
So first you would divide the 10 by 2
-4=12p+5
Then you subtract the five from both sides to try to isolate the variable p
-4=12p+5
-5 -5
You then divide both sides by 12 to solve for p and simplify
-9=12p
(-9/12)=(12p/12)
-3/4=p
