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sladkih [1.3K]
3 years ago
5

Which comparison is correct?

Mathematics
2 answers:
Margarita [4]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Why the others are incorrect:

A: \frac{2}{10} > \frac{3*2}{5*2} → \frac{2}{10} >  \frac{ 6}{10} This statement/comparison is false

B : \frac{2*2}{4*2} > \frac{4}{8} → \frac{4}{8} > \frac{4}{8} This statement/comparison is false

D:\frac{9}{12} < \frac{3*2}{6*2} → \frac{9}{12} < \frac{6}{12} This statement/comparison is false

<h3>Why answer C is Correct</h3><h3 />

C: \frac{2*4}{3*4} < \frac{10}{12} → \frac{8}{12} < \frac{10}{12} This statement/comparison is true

Alisiya [41]3 years ago
4 0

Answer:

C is correct

Step-by-step explanation:

10/12=0.83...

2/3=0.66...

2/3<10/12

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<h3>Answer:</h3>

  ±12   (two answers)

<h3>Explanation:</h3>

Suppose one root is <em>a</em>. Then the other root will be -3<em>a</em>. The product of the two roots is the ratio of the constant coefficient to the leading coefficient:

  (<em>a</em>)(-3<em>a</em>) = -27/4

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_____

<em>Check</em>

For b = 12, the equation factors as ...

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  It has roots -9/2 and +3/2, the ratio of which is -3.

For b = -12, the equation factors as ...

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