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son4ous [18]
4 years ago
9

Which is bigger two thirds or four fifths?

Mathematics
1 answer:
zvonat [6]4 years ago
4 0
It would be four fifths
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If xy = 0, what must be true about either x or y?
koban [17]

Answer:

One of them must be zero.

Step-by-step explanation:

For something to equal zero it needs to be multiplied by a value of zero.

4 0
3 years ago
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The roots of an equation are x=-1 plus or minus I the equation is x^2+ ?
Oxana [17]

Answer:

x^2+2x+2

Step-by-step explanation:

If the roots of the equation are -1\pm i, then by the zero product rule:

x=-1\pm i \\\\x+1\pm i=0 \\\\(x+1+i)(x+1-i)=0\\\\x^2+x-ix+x+1-i+ix+i+1=0 \\\\x^2+2x+2=0

You can confirm this with the quadratic equation:

x=\dfrac{-2\pm\sqrt{4-8}}{2}=\dfrac{-2\pm 4i}{2}=-1\pm i

Hope this helps!

8 0
3 years ago
y is directly proportional to the positive square root of x when x = 9, y= 12 find y when x =1/2​
ehidna [41]

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3 years ago
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Find an equation in slope-intercept form of the line that has slope –8 and passes through point A (1, 5)
mihalych1998 [28]

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Step-by-step explanation:

y - 5 = -8(x - 1)

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7 0
3 years ago
Can someone help me on this math question its confusing ill give brainly when right!!!
notsponge [240]

\huge\mathsf\green{ANSWER}:—

The coefficients are:-

-4,-6

<h2>hope it would be helpful for you</h2>
7 0
3 years ago
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