ssoohoon ssoohoon
  • 10-04-2022
  • Mathematics
contestada

Solve 9x^2- 17x- 85 = 0 Give your solutions correct to 3 significant figures.​

Respuesta :

BubbleTea720
BubbleTea720 BubbleTea720
  • 10-04-2022

Answer:

[tex]x =\frac{17}{18} +\frac{1}{18} \sqrt{3349}[/tex] OR [tex]x =\frac{17}{18} +\frac{-1}{18} \sqrt{3349}[/tex]

Step-by-step explanation:

9x2−17x−85=0

For this equation: a=9, b=-17, c=-85

9x2+−17x+−85=0

Step 1: Use quadratic formula with a=9, b=-17, c=-85.

[tex]x =\frac{-b + \sqrt{b^{2}-4ac } }{2a}[/tex]

[tex]x =\frac{-(-17)+\sqrt{(-17)^{2} -4(9)(-85)} }{2(9)}[/tex]

[tex]x =\frac{17}{18} +\frac{-1}{18} \sqrt{3349}[/tex]

Answer Link

Otras preguntas

5.5-x=-4.5-x what would that equale
|3x|=9, solve absolute value equation
Given f(x) = x + 11 and g(x) = x - 7, what is f(x) + g(x)? -77x 18x 2x + 4 -2 - 77x
7,298,341 rounded to the nearest ten thousand
How old was Mahatma Gandhi's wife when he married her? What was her name?
Select the pronoun that best completes the sentence. _____ can be a volunteer! A. Everyone B. Those C. That D. Who
Which of the following expressions represents a function? a. x2 y2 = 9 b. {(4, 2), (4, –2), (9, 3), (9, –3)} c. x = 4 d. 2x y = 5
stefan plants seeds for 30 carrot plants and 45 beet plants in 5 rows,with the same number of seeds in each row.how many seeds are planted in each row.
what does the product of any whole-number factor multiplied by 100 always have explain
Solve by using elimination.express answer as an ordered pair 2x-5y=-7 5x-3y=11