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Zepler [3.9K]
3 years ago
9

4.2(5.1x+6.8) Simplify the expression

Mathematics
1 answer:
vovikov84 [41]3 years ago
6 0

Answer:

21.42x+28.56

Step-by-step explanation:

Expand: 4.2×5.1×x+4.2×6.8

4.2×5.1×x  to (21.42)x

Simplify: 21.42x+4.2×6.8

4.2×6.8 = 28.5628.56

21.42x+28.56

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  B.  m∠RTS = 78°

Step-by-step explanation:

The sides GH and GI of ΔGHI have the same length, so their opposite angles, ∠I and ∠H will have the same measures. Call that measure "x".

The sum of angles in a triangle is 180°, so we have ...

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4 0
3 years ago
Is 5.731 an rational number and integer or whole number
Delicious77 [7]

Answer:

<h3>Rational number</h3>

Step-by-step explanation:

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Looking at the value 5.371, we can write it in fraction form as shown;

5.371 = 5371/1000

Since 5.371  is equivalent to 5371/1000 and <em>5371/1000 is a ratio of two integers 5371 and 1000 therefore we can conclude that 5.731 is a rational number</em>

<u>Note that decimal numbers are not integers and are not whole numbers.</u>

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Answer:

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Step-by-step explanation:

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