Answer:

Step-by-step explanation:
In any triangle, the cosine/cos of an angle is equal to its adjacent side divided by the hypotenuse (longest side) of the triangle. (a/h)
The angle marked 40 degrees has an adjacent side of
and the hypotenuse of the triangle is 60.
Therefore, we have the equation:

Answer:
18.84
Step-by-step explanation:
sorry if i get the wrong answer i literlly learn this but i complety forget it
Answer:
D is the answer.
Step-by-step explanation:
You can see if a line is perpendicular by the slope. If the slope is COMPLETELY opposite from another by means of slope, the lines are perpendicular.
-1/4
4/1
...are opposite.
You would do 5 times 4 which is 20. then count how many zero's there are and put them after the 20.
Answer:
The solution to the given system of equations is (-2,
)
Therefore the values of x and y are x=-2 and 
Step-by-step explanation:
Given equations can be written as

Solving equation(2) we get
x=-2
Substitute x=-2 in equation (1) we get




Therefore the values of x and y are x=-2 and 
The solution to the given system of equations is (-2,
)