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irakobra [83]
3 years ago
15

Help me please -4.5+4.4+_____=0

Mathematics
1 answer:
s2008m [1.1K]3 years ago
4 0

Answer:

+0.1

Step-by-step explanation:

Note that -4.5 + 4.4 = -0.1.

Adding 0.1 to -0.1 results in 0.

The unknown was +0.1.

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Find the focus and directrix of the parabola with the equation x² = -22y.
Bad White [126]

9514 1404 393

Answer:

  focus: (0, -5.5)

  directrix: y = 5.5

Step-by-step explanation:

The equation compares to the form ...

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The directrix is above the vertex by the same amount, so is y = 5.5.

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What is the value of the expression 1/2 (m-2/3n) when m=3/2 and n= 1/2 ?
yawa3891 [41]

Answer:

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Step-by-step explanation:

m=\frac{3}{2}\\n=\frac{1}{2\\} \\\frac{1}{2} (m-\frac{2}{3} n)=\frac{1}{2} (\frac{3}{2} -\frac{2}{3} .\frac{1}{2} )\\=\frac{7}{12}

So B is the correct answer.

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