Step-by-step explanation:
Cos(-x) = cos(x)
Therefore, cos(-x)= -0.65
Answer:
1,4.560
Step-by-step explanation:
I am not so sure.
There's 180 degrees in a triangle so and the two angles and then subtract by 180
The sum of the inside angles of a triangle, always sum up to 180 degrees. Using this information, we can create the following equation for this problem:

Adding up all terms with 'x' and adding the other together, we have the following equation:

Solving this last equation for 'x', we have the following:

Then, the final answer for the 'x' value is twelve!
Answer:
8 
Step-by-step explanation:
3
× 2
( change to improper fractions )
=
×
( multiply numerators and denominators )
= 
= 
= 8 