kathyistheone kathyistheone
  • 16-05-2018
  • Mathematics
contestada

if √6b+4=20, then what is the value of b

Respuesta :

gmany
gmany gmany
  • 16-05-2018
[tex]D:6b+4\geq0\to b\geq-\dfrac{2}{3}\\\\\sqrt{6b+4}=20\ \ \ |^2\\\\(\sqrt{6b+4})^2=20^2\\\\|6b+4|=400\to 6b+4=400\ \vee\ 6b+4=-400\ \ |-4\\\\6b=396\ \vee\ 6c=-404\ \ \ |:6\\\\b=66\in D\ \vee\ b=-67\dfrac{2}{3}\notin D[/tex]

[tex]Answer:\ b=66[/tex]
Answer Link

Otras preguntas

Match the qualitative characteristics below with the following statements.1. Timeliness2. Completeness3. Free from error4. Understandability5. Fa
Using a General Journal Math Quiz QUESTION 9 of 10: If a business has $100,000 in sales and $10,000 in wages, $3,000 in advertising, $1,000 in dividends and $3,
Please check all that apply.​
Plssss help me !!!!!!!!!
3 over 5 divided by 5 over 8
write letter to your brother describinf about discipline
Give the person's nationality based on the city he/she is from. Write a complete sentence. (8 points) 1 Lola: Dallas 2 Patrick: Québec 3 Amador: Paris 4. Madame
Which set contains the value below? 50 A.irrational B.Natural C. rational D.Integers
Take the regular compass and hold it so the case is vertical. Now use it to investigate the direction of the coil’s magnetic field at locations other than the c
everything is in the picture​