we know that
A quadratic equation is a polynomial with an order of two. Its general form is

case a) 

<u>The case a) is a quadratic equation</u>
case b) 
<u>The case b) is a grade
polynomial</u>
case c) 
<u>The case c) is a grade
polynomial</u>
case d) 
<u>The case d) is a grade
polynomial</u>
therefore
the answer is

Answer:
BC ≈ 1.71
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos70° =
=
= 
Multiply both sides by 5
5 × cos70° = BC , thus
BC ≈ 1.71 ( to the nearest hundredth )
Answer:
y=-4x+50, y=2x-10 ( i think)
Step-by-step explanation:
Answer:
-10
Step-by-step explanation:
ez?