Answer:
Step-by-step explanation:
( 4 / 21 ) ( 7 / 16 ) ( 15 / 9 )
= ( 2 × 2 × 7 × 3 × 5 )/( 3 × 7 × 2 × 2 × 2 × 3 × 3 )
= ( 5 )/ ( 2 × 3 × 3 )
= 5 / 18
It really depends on what the numbers are sometimes it will stay irrational and sometimes it will be rational Step-by-step explanation:
<span>square root 18x^7y^6
</span>=(18x^7y^6)^1/2
(9*2*x^6*X*y^6)^1/2
= <span> 3 x3y3 • sqrt(2x)
</span>hope this helps
7.8
-3.4
———
4.4
So, x = 4.4
I hope this helped!