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andrew11 [14]
3 years ago
11

A sample in which every person object or event has a equal chance of being selected

Mathematics
1 answer:
NemiM [27]3 years ago
5 0

Answer:

Random Sample

Step-by-step explanation:

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Which is a factor of 144 - 49x²?<br> O 12-7x²<br> O 72-7x²<br> O 12-7x<br> O 72 + 7x
lisabon 2012 [21]

Answer: C: 12-7x

Step-by-step explanation:

This expression is a good example of the difference of two squares, as 144 is the square of 12, while 49x² is the square of 7x.

Any difference of two squares a^2-b^2 can be factored into the sum of their square roots times the difference of their square roots (a+b)(a-b).

Let's factor our expression.

144-49x^2=(12+7x)(12-7x)

Out of all the options given, only 12-7x is a factor. Hence, option C is correct.

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Put the following equation of a line into slope-intercept form 4x+3y=-21
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Step-by-step explanation:

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Janet can make 4/5 of a necklace in 20 min .how many necklaces can she make in 1 hour​
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