I need to find the answer by 12am help plz

x = 7.57894737 or 7.6  

Step-by-step explanation:

1. The First step in this is understanding certain types of angles.

The one you will need to know here is a supplementary angle:

    Either of 2 angles who's sum is 180 degrees.

Looking at the image there is a supplementary angles at the intersection area where C is located on line ET. Therefore you do the math for that

180 (degrees) - 118 (degrees) = 62 degrees

2. Now you found a missing angle within your triangle (62 degrees). Your next step is understanding the triangle itself.

    A triangle's sum is 180 degrees

Knowing this you can create an equation that defines it such as the following:

62(degrees) + 10x + 9x+4 = 180degrees

3. SOLVE FOR X

62 + 10x + 9x + 4 = 180         1. Combine Like Terms

66 + 19x = 180                       2. Put Common Like Terms on Same Side                    

                                                   (Subtract 66)

19x = 144                                 3. Divide to make into 1 "x"

x = 7.57894737 or 7.6    

x=-2?

Step-by-step explanation:

10(x+3)-(-9x-4)=x-5+3. or 10x+30+9x+4=x-2.or 19x-x=-2-30-4?

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225