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lilavasa [31]
2 years ago
9

I need help I don't understand this at all please help me

Mathematics
1 answer:
saw5 [17]2 years ago
7 0
B because all 3 angles in a triangle add up to 180 always
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Regression equations are usually used to predict values of unavailable data. If the data do not closely model a particular type
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How to do lond division 0.6÷0.0024
Kryger [21]
So...notice first off, the 0.6 has 1 decimal, the 0.0024 has 4 decimals

what happens is, the dot goes poof BUT, you need to add as many zeros to each number as the other's decimals.

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3 years ago
What is the sine value of 2 pi over 3? negative 1 over 2 1 over 2 negative square root 3 over 2 square root 3 over 2
MatroZZZ [7]

Answer:

\large\boxed{\sin\dfrac{2\pi}{3}=\dfrac{\sqrt3}{2}}

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\sin\dfrac{2\pi}{3}=\sin\bigg(\pi-\dfrac{\pi}{3}\bigg)\\\\\text{use}\ \sin(x-y)=\sin x\cos y-\sin y\cos x\\\\=\sin\pi\cos\dfrac{\pi}{3}-\sin\dfrac{\pi}{3}\cos\pi\\\\\text{use the table from the attachment}\\\\\sin\pi=0\\\\\cos\dfrac{\pi}{3}=\dfrac{1}{2}\\\\\sin\dfrac{\pi}{3}=\dfrac{\sqrt3}{2}\\\\\cod\pi=-1\\\\\text{subtitute:}\\\\=(0)\left(\dfrac{1}{2}\right)-\left(\dfrac{\sqrt3}{2}\right)(-1)=\dfrac{\sqrt3}{2}

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2 years ago
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X=0
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Multiply the top equation by -2 to get -2y=-8x+4

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Solve for y by plugging zero into one of the equations to get y=4(0)-2 to find the y = -2
y=4(0)-2
5 0
3 years ago
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