Answer:
3.5
Step-by-step explanation:
These are similar triangles.
BC:AC = BD:AD
6:5 is the ratio.
Then, simply multiply:
4.2 x 5/6 = 3.5
So, x = 3.5!
The mistake is adding and there is no way to solve if you have to add
The zeros of the given functions are shown on the attached picture.
x= -2
