jriosjr25896
jriosjr25896 jriosjr25896
  • 23-05-2020
  • Mathematics
contestada

What are the solution(s) to the quadratic equation 40 - x2 = 0?
O x = +2/10
O x = +4/10
O x = +2V5
O x = +4/5

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 27-07-2020

Answer:

  [tex]x=\pm2\sqrt{10}[/tex]

Step-by-step explanation:

You want to solve ...

  [tex]40 -x^2=0\\\\40=x^2\qquad\text{add $x^2$}\\\\\pm\sqrt{40}=x\qquad\text{take the square root}\\\\\boxed{x=\pm2\sqrt{10}}\qquad\text{simplify}[/tex]

Answer Link

Otras preguntas

What is 3,397 rounded to the nearest thousand
Which of the following represent homologous features? A. Wings in birds and insects B. The appendix in humans and horses C. Fins in fish an
What is slope and y-intercept of the equation 4x – 3y =2?
In 1959, Mary Leakey discovered the bones of Zinj, a ___ ancestor of modern humans. A. premier B. preposterous C. pretentious D. primeval
Is there a credible scientific theory that opposes evolution?
What is the difference between clastic, organic and chemical sedimentary rocks
Laurie buys four bags of candy with 10 pieces of candy in each bag. Her mother then gives her 3 more pieces of candy. Laurie wants to give as much of her candy
SAT Question of the Day: Archaeological evidence shows that Viking ships were lighter, slimmer, and faster than that in England. (A) that in England (B) they ha
What is the solution to 2.1m = 6.3? A. m = 8.4 B. m = 3 C. m = 3.2 D. m = 4.2
why were England , France , and the Netherlands interested in finding the northwest passage