Answer:
2.77
Step-by-step explanation:
2.9 cos (17) = 2.77
The third choice is very useful. It's valid because two things that are both equal to 'y' are equal to each other, and it can be easily solved to find 'x'.
Answer:
m = 
Step-by-step explanation:
Given
=
( cross- multiply )
12(m - 4) = 4 ( divide both sides by 12 )
m - 4 =
=
( add 4 to both sides )
m = 4
= 