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Elis [28]
3 years ago
9

How would the expression x-9 be rewritten using Difference of Squares?

Mathematics
1 answer:
yaroslaw [1]3 years ago
4 0

Answer:

Step-by-step explanation:

(x+3)(x-3)

x squared and -9 are both square numbers.

the square root of x^2 is x

the square root of -9 is 3. so you just need to write (x+3)(x-3)

you can check by expanding the brackets and the middle x terms should cancel out

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What is the expression in factored form? 9x^2-12x+4​
NNADVOKAT [17]

Answer:

\boxed{\bold{\left(3x-2\right)^2}}

Step By Step Explanation:

  • Rewrite \bold{9x^2-12x+4}

\bold{\left(3x\right)^2-2\cdot \:3x\cdot \:2+2^2}

  • Rewrite Equation

\bold{\left(3x\right)^2-2\cdot \:3x\cdot \:2+2^2}

  • Apply Perfect Square Formula \bold{\left(a-b\right)^2=a^2-2ab+b^2: \ a=3x,\:b=2}

\bold{\left(3x-2\right)^2}

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3 years ago
Read 2 more answers
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Stells [14]

Answer:

Table a match with  Graph 3

Table b match with Graph 2

Table c match with Graph 4

Step-by-step explanation:

<u>Table a</u>

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<u>Table b</u>

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Ignoring values 2.5 and 5.3 we see a linear fit with a slope of 20. This means either graph 1 or graph 2

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<u>Table c</u>

Months plotted on x axis and length of fetus on the y axis

We can see that the y values (the length) increases slowly at lower values of x(x=1 and x=2) and then increase rapidly at the mid values(x = 2 thru 6) and then slows  down  between months 6 and 9. Only Graph 4 fits this pattern

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The answer should be 7/5

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charle [14.2K]

Answer:

3/12 chance

Step-by-step explanation:

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3 years ago
Rude took a test and earned a 92%. Camilo earned an 88% on the same test. If Rudy answered 46 questions correctly, how many more
g100num [7]
Rudy answered 2 more questions correctly
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...........
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