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kupik [55]
3 years ago
12

Just want to know what is 21x+2

Mathematics
1 answer:
slavikrds [6]3 years ago
8 0

Answer:

21x+2

Step-by-step explanation:

You don't know what the value of x is you can't solve the expression

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4 0
3 years ago
Need some help with this question in the image<br><br>Cheers​
iren [92.7K]

Step-by-step explanation:

a) 24.7×52.3=1291.81

On rounding off to 3 significant digits we get

1290

b)

\sqrt{ {42}^{2} -  {28}^{2}  }

\sqrt{1764 -784 }  =  \sqrt{980}

=31.304951

On rounding off to 5 significant figures we get

=31.305

c)

\sqrt[3]{78}  = 4.27265

On rounding off to 2 significant figures we get

=4.3

Hence required answers

a)1290

b)31.305

c)4.3

I hope it helped you

5 0
1 year ago
Did I get this first question right?
vivado [14]

Answer:

no

Step-by-step explanation:

the correct answer is 56.55 inches

3 0
3 years ago
Read 2 more answers
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