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hoa [83]
3 years ago
7

I need help with 3 problems of Properties of Signed Numbers somebody please help me

Mathematics
1 answer:
Shalnov [3]3 years ago
7 0
1. 2/3 - (1/4)*(4/9)
     2/3-4/36
     24/36-4/36
     20/36 also same as 4/9 (D)


2. It's B. (-3*(2*7)=(-3*2)*7

3. -4+(-6)*(-3)
     -4+18
      -14 (b)


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Step-by-step explanation:

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What is the standard form of the equation<br><br>Center (-14,5), circumference: 22π
IRISSAK [1]

The standard equation for a circle with center at (h,k) and radius r is

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The formula for the circumference of a circle is C = 2pi*r.  In this particular problem, we need to determine the radius of the circle.  That radius is:  r = C/[2pi].  Here, C = 22pi, so we get r = 22pi/[2pi], and so r^2 = 11^2.

Putting to use the given info, we have:

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3 years ago
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schepotkina [342]

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Step-by-step explanation:

6 0
2 years ago
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Can't seem to get this one, help? (20pt)
egoroff_w [7]

Answer:

The answer to your question is:     (∞ , 3]

Step-by-step explanation:

Remember that to express an inequality, are used ( ) and [ ].

(  ) are used when the point is not consider in the interval.

[  ]  are used when the point is consider or is part of the interval.

Also, an empty point indicates that the number is not consider in the interval.

and, a filled point indicates that the number is consider in the interval.

For your question, the interval will be:

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MakcuM [25]

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3 years ago
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