Step-by-step explanation:
<h2>
<em>So, we call 5 the “square root” of 25 and write √25=5 because 52=25 . ... Since (−5)2 also equals 25 it is also a “square root” of 25 , but we write −√25=−5 because it is not the principal square root. Not all whole numbers have a whole number square root. For instance √2=1.414213562…</em></h2>
To calculate the ratio
18 :2 simplified to 9
45 :5 simplified to 9
36 :4 <span>simplified to 9</span>
and
27 :x
To figure out what x is
divide 27 by 9
that is 3
so your answer is 27 : 3
x = 3
Answer:
a. r is rational; r² is rational
b. r is rational; r² is rational
Distribute
-5/2x+5+(-4)
Combine like terms
(-5/2x)+(5+-4)=
-5/2x+1
