It's 50 because the bottom right is 65 too so 65 + 65 is 130. 180 - 130 is 50
Answer:
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The answer is 75÷4= 18.75
No, -Cos(120) is equal to 5, while Cos(-120) is equal to -5.
Hopefully this helps!
Answer:
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56
Step-by-step explanation:
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Answer:
0
Step-by-step explanation:
Multiplying the first equation by xy, we have ...
x^2 +y^2 = -xy
Factoring the expression of interest, we have ...
x^3 -y^3 = (x -y)(x^2 +xy +y^2)
Substituting for xy using the first expression we found, this is ...
x^3 -y^3 = (x -y)(x^2 -(x^2 +y^2) +y^2) = (x -y)(0) = 0
The value of x^3 -y^3 is 0.
