When variables are not related, r = 0
Correct answer: a.
A) 97.635 rounded to the nearest ones would be 98 since 97 + 1 is 98.
B) 97.635 rounded to the nearest tenth would be 97.6 since its near the tenth column
C) 97.635 rounded to the nearest hundredth would be 97.64 since thats just two decimals.
The simplified expressions are
1. 990√2
2. 80 √3
3. 30- √35 / √42
<h3>What is expression?</h3>
An expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.)
(11 √40) (9 √5)
= 11*9* √40*√5
= 99*√200
= 99* 10√2
= 990√2
(2 √6) (10 √8)
= 2*10 * √6 * √8
=20* √48
= 20* 4 √3
= 80 √3
5 √6 ÷ √7 - √5 ÷ √6
=30- √35 / √42
Learn more about expression here:
brainly.com/question/14083225
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