Answer:
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Step-by-step explanation:
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You have 180 degrees in a triangle so 180-40-51=89
Answer:
x = 4.
Step-by-step explanation:
2x + 4 = 5x – 8
Subtract 2x from both sides:
4 = 5x - 2x - 8
Add 8 to both sides:
4 + 8 = 3x
3x = 12
x = 4.
The force of 10 pounds is made up of the horizontal components of the 8 and 5 pound forces
8 cos 30 + 5 cos 52 = 10
so your answer is 30 degrees