Answer:
x= 14.84cm
Step-by-step explanation:
cos(52)=x/28
cos(52)*28=x
x=14.84 cm
If you put a picture, Its not showing up. If not, what cant you solve?
Answer:

Excluded values are 3 and -4
Step-by-step explanation:
To simplify the expression multiply to create a common denominator.
Multiply the first fraction by (x-3) and the second fraction by (x+4).


Excluded values are values which make the denominator 0. This means (x-3)(x+4) cannot be 0. This means x cannot be 3 or -4. These are excluded values.
They would be negative nine and a positive ten:-9, 10