dada76 dada76
  • 20-06-2018
  • Mathematics
contestada

what is the value of x in the equaton
[tex] {25}x^{2} = 16[/tex]

Respuesta :

gmany
gmany gmany
  • 30-06-2018
[tex]25x^2=16\ \ \ |:25\\\\x^2=\dfrac{16}{25}\to x=\pm\sqrt{\dfrac{16}{25}}\\\\x=-\dfrac{\sqrt{16}}{\sqrt{25}}\ \vee\ x=\dfrac{\sqrt{16}}{\sqrt{25}}\\\\\boxed{x=-\dfrac{4}{5}\ \vee\ x=\dfrac{4}{5}}[/tex]
Answer Link

Otras preguntas

Sara has some oranges. She sold 40% more than she ate. If she sold 70 oranges. How many did she eat?
John currently has enough money to buy 45 books. If each book cost 10 cents less, John could buy 5 more books. How much money does John have to spend on book? (
Sara has some oranges. She sold 40% more than she ate. If she sold 70 oranges. How many did she eat?
A high school purchases two workbooks for every textbook, and two journals for every workbook. If the school purchases 301 total items, how many of each do they
express the recurring decimal 0.281 as a fraction  in its simplest form. ( the '81' are the only two recurring)
Help with number 3 Thank you
Find the volume of a square pyramid 13 m tall whose base measures 5 m on a side
What is the scientific notation of 1,394,000,000
Who was Lancelot? How did he fit into the Arthurian legends?
How old was Charles Dickens when he moved to London,England