Answer: i believe it would be option a.
Step-by-step explanation:
Answer:
Step-by-step explanation:
2X^2+4X-8-X^2+6X-4
X^2+4X-8+6X-4
X^2+10X-12
<BAC = <DEC = 30°
<BCA = <DCE = 70°
<CDE (or m<D) = 180° - <DEC - <DCE
<CDE = 180° - 30° - 70°
<CDE = 80°
The number that belongs in the green box is 80
The cable should be 50 feet.
If you draw the picture, you will see that you have a right triangle.
Let's just use the Pythagorean Theorem to find the hypotenuse (or cable).
30^2 + 40^2 = c^2
2500 = c^2
50 = c
