Answer:
Step-by-step explanation:
Answer:
- 4
Step-by-step explanation:
Using the rule of exponents
•
×
⇔ 
•
⇔ 
=
= 
and right side
=
× 
Hence
=
× 
= 
Equating exponents on both sides gives
a + 10 = - 2a - 2 ( add 2a to both sides )
3a + 10 = - 2 (subtract 10 from both sides )
3a = - 12 ( divide both sides by 3 )
a = - 4
4 km/h because 10-2 because of the 2 km left which =8 then you divide that by 2 to figure out the km per hour which = 4 so 4 km/h
Answer:
cos(A) = adjacent side / hypotenuse
= 4/5