Answer:
5
Step-by-step explanation:

=
=
=5
Answer:
6. Actual length is 8 mm.
7. 13
8. 4
9. x=12
10. y=4
11. a=-3
12. y=-5
Step-by-step explanation:
Collect like terms
3g+11g-9-21
Add the like terms up
14g-30
if u have to simplify further, u have
2(7g-15)
Answer:
21.8014094864
Step-by-step explanation:
tan(x)= 4/10
=0.4
inverse tan(0.4)
21.8014094864