Answered

Explore IDNLearn.com's extensive Q&A database and find the answers you're looking for. Ask any question and get a thorough, accurate answer from our community of experienced professionals.

A=2b^3-1 what's the value of b if a is 13

Sagot :

Panoyinidn
A = 2b³ - 1
13 = 2b³ - 1
+ 1         + 1
14 = 2b³
 2       2
 7 = b³
∛(7) = b
IGreenidn
[tex]\sf~A=2b^3-1[/tex]

Plug in A = 13

[tex]\sf~13=2b^3-1[/tex]

Add 1 to both sides:

[tex]\sf~14=2b^3[/tex]

Divide 2 to both sides:

[tex]\sf~7=b^3[/tex]

Find the cube root of both sides:

[tex]\sf~b=\sqrt[3]{7}[/tex]

[tex]\sf~b\approx~1.91[/tex]
Thank you for using this platform to share and learn. Keep asking and answering. We appreciate every contribution you make. IDNLearn.com provides the answers you need. Thank you for visiting, and see you next time for more valuable insights.