Mrisley Mrisley
  • 04-05-2014
  • Mathematics
contestada

What are 2 numbers that when multiplied together you get 360 and when added together you get -96

Respuesta :

crisforp
crisforp crisforp
  • 04-05-2014
x + y = -96;
x * y = 360;

[tex] t^{2} + 96t + 720 = 0[/tex];
Δ = [tex] 96^{2} - 4 * 720 = 6336 [/tex] => sqrt(Δ) = 79.6;
=> x = ( - b +  sqrt(Δ) ) / 2a => x = ( -96 + 79.6 ) / 2 ≈ - 8.2;
=> y =  ( - b -  sqrt(Δ) ) / 2a => x = ( -96 - 79.6 ) / 2 ≈ - 87.8;
Answer Link

Otras preguntas

Compute the value of the discriminant and give the number of real solutions to the quadratic equation: 3x^2 - 7x + 9 = 0
Convert the general form of the circle given into standard form. 2x^2 + 2y^2 - 20x - 8y + 50 = 0
Find the length of the radius of the following circle. (x + 2)2 + y2 = 10
What were the reasons for the failure of the League Nations?
in the xy-plane above, point c has coordinates (6,9). which of the follwoing is an equation of the line that contains points 0 and c?
the graph below shows the distribution of students grades on their last math test. Based on the Empirical rule, what percent of students made.. *btwn 80 n 85 o
Where did the Greeks believe that most gods lived
The statement, "right angles measure 90 degrees," is an example of: A postulate A definition A theorem A conjecture
simplify (1/x) + (1/(x+h)
A particle travels in a circle of radius 82 cm and with a centripetal acceleration of 4.7 m/s2. How long does the particle take to complete one revolution?