Answer:
true
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
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Answer:
It is given that in triangle XYZ, XY = 13, YZ=20, and XZ=25.Using the law of cosines, we have
CosC=\frac{a^2+b^2-c^2}{2ab}
cosZ=\frac{(YZ)^2+(XZ)^2-(XY)^2}{2(YZ)(XZ)}
CosZ=\frac{(20)^2+(25)^2-(13)^2}{2(20)(25)}
CosZ=\frac{400+625-169}{1000}
CosZ=\frac{856}{1000}
CosZ=0.856
Z=cos^{-1}(0.856)
Z=37.13^{\circ}
Step-by-step explanation:
Answer:
x is equal to ± 1/2
Step-by-step explanation:
To find x, we simply need to take the square root of both sides:
x² = 1/4
√(x²) = √(1/4)
x = √(1/4)
x = ± 1/2
Answer:
D- x^2
Step-by-step explanation:
Just did the practice edge. 2021
