+0  
 
0
59
2
avatar

How do you answer cube root 1/27 = 3-y (the negative y is a power on 3)?

Guest Sep 24, 2017

Best Answer 

 #1
avatar+26240 
+4

Like so

 

\(\frac{1}{27}=3^{-y}\\ \frac{1}{27}=\frac{1}{3^y}\\ 3^y=27\\y=3\)

Alan  Sep 24, 2017
Sort: 

2+0 Answers

 #1
avatar+26240 
+4
Best Answer

Like so

 

\(\frac{1}{27}=3^{-y}\\ \frac{1}{27}=\frac{1}{3^y}\\ 3^y=27\\y=3\)

Alan  Sep 24, 2017
 #2
avatar
0

O ma god Alan your'e a jeniuz thanks so much

Guest Sep 25, 2017

22 Online Users

avatar
avatar
avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details