abbiekasper2208 abbiekasper2208
  • 02-11-2020
  • Mathematics
contestada

What two numbers add to 13 but multiply to negative 12?

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 02-11-2020

9514 1404 393

Answer:

  13.8654599313 and -0.8654599313

Step-by-step explanation:

If one of the numbers is x, then the other is 13-x, and their product is ...

  x(13 -x) = -12

  x^2 -13x = 12 . . . . multiply by -1 and simplify

  x^2 -13x +6.5^2 = 12 +6.5^2 . . . . complete the square

  (x -6.5)^2 = 54.25

  x -6.5 = √54.25

  x = 6.5 +√54.25 ≈ 13.8654599313

and the other number is ...

  13 -x = 13 -13.8654599313 = -0.8654599313

The two numbers are 13.8654599313 and -0.8654599313.

Ver imagen sqdancefan
Answer Link

Otras preguntas

Which of the following is the best reason for writing down stories that were once only told orally ? A. Written works can be translated into many languages, but
NEED ANSWERS ASAP Which polygon appears to be regular? Figure A Figure B Figure C Figure D
1. anti-Semitism a time of Catholic persecution of those who did not hold to traditional Catholic beliefs 2. encomienda colonial Spanish economic and social pol
The topping are nuts hot fudge caramel and sprinkles
Do you use quotation marks for book titles
Nell wrote a check for $48 to pay her monthly water bill, but when balancing her checkbook, she accidentally recorded it as a credit rather than as a debit. How
Examples of irony in the cask of amontillado
With your COMPASS, copy angle DEF to create angle ABC.
The nth term of 1 , 8 , 15 , 22 ..... is
Does cellular respiration occur in plants