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bija089 [108]
3 years ago
11

Which is the best estimate of -14 1/9 (-2 9/10) A- (-42) B-(-28) C-28 D-42

Mathematics
2 answers:
aleksandrvk [35]3 years ago
4 0
D), I believe it is -42. Correct me if im wrong :}
kipiarov [429]3 years ago
3 0

Answer: Option 'D' is correct.

Step-by-step explanation:

Since we have given that

-14\dfrac{1}{9}\times -2\dfrac{9}{10}

We first round off the elements one by one :

14\dfrac{1}{9}\\\\=14+0.11\\\\=14.11\\\\\approx 14

Similarly,

2\dfrac{9}{10}\\\\=2+0.9\\\\=2.9\\\\\approx 3

So, Best estimate would be

-14\times -3\\\\=42

Hence, Option 'D' is correct.

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How many unique ways are there to arrange the letters in a word OPAL.
jek_recluse [69]

Answer:

24.

Step-by-step explanation:

We can use the factorial function to find the number of unique arrangements in a word.

There are 4 unique characters in 'OPAL'. As such, 4! = 24.

In the case that there were repeating characters, such as 'OPALA', then we would divide by the factorial of the number of repeating letters. That looks something like this:

\frac{5!}{2!} = 60

Hope this helped.

7 0
3 years ago
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4 years ago
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Nat2105 [25]
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5 0
3 years ago
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zubka84 [21]

Answer:

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Step-by-step explanation:

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6 0
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Can someone please help me with the answer.
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