Step-by-step explanation:
u.v=|u||v|cos60°
u.v=(2.5)(3.2)(1/2)
u.v=(8)(1/2)
u.v=4
Answer:
18 years
2(8+x) = 34+x
16+2x = 34+x
-18 = -x
Divide each term by and simplify.
Hope this helps :)
<em>-ilovejiminssi♡</em>
5. -10/9
6. -5500/21
7. 1 39/167
8. -31/492