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viktelen [127]
3 years ago
5

3/10+4/100+9/1000 as a decimal

Mathematics
2 answers:
Kipish [7]3 years ago
5 0

Answer:

0.349

Step-by-step explanation:

labwork [276]3 years ago
3 0

Answer:

0.349

Step-by-step explanation:

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The second one

Step-by-step explanation:

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2 years ago
Find the missing number of each unit rate.<br><br> 20/4=?/1<br> 10/15=?/1
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Answer:

Step-by-step explanation:

divide 20 by four

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Which shows all the values of x that make the rational expression undefined? x = 6 x = 7 x = –6 or x = 6 x = –7 or x = 7
n200080 [17]
<h2>Explanation:</h2>

The rational expression is given by:

E=\frac{2x^2-72}{5x^2-245} \\ \\ Factor \ out: \\ \\  E=\frac{2(x^2-36)}{5(x^2-49)} \\ \\ E=\frac{2(x-6)(x+36)}{5(x-7)(x+7)} : \ \ \ \ a^2-b^2=(a-b)(a+b)

The denominator can't be zero, therefore:

(x-7)(x+7)\neq 0 \\ \\ \\ Thus: \\ \\ \boxed{x\neq 7 \ and x \neq -7}

Finally,<em> the values of x that make the rational expression undefined are </em>

<em></em>

<em>x = 7 and x = -7</em>

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