tatirocks2372 tatirocks2372

11-04-2018
Mathematics

contestada

What is the value of the discriminant for the quadratic equation
d2− 7d + 8 = 0?
A. −56
B. 17
C. −1
D. −27

Respuesta :

Аноним Аноним

11-04-2018

d² - 7d + 8 = 0

a = 1, b = -7 , c = 8

[tex]\text {Discriminant=} b^2 - 4ac [/tex]

[tex]\text {Discriminant=} (-7)^2 - 4(1)(8) = 49 - 32 = 17[/tex]

Answer: 17 (Answer B)

Answer Link

Otras preguntas

If it is June or July and you live in the southern hemisphere, describe the position of the Earth, in relation to the sun, and what type of temperatures you wou

1. Factor the following quadratic equation. x^2+10x+21 A. (x+21)(x+1) B.(x+5)(x+2) C.(x+3)(x+7) D.(x-3)(x-7) 2. Factor the following quadratic expression. x^2-1

How has the two party system shaped American politics between 1790 and 1860? In constructing your essay, point out the 3 different “party systems” as well as th

an electric clock in a classroom will not run if it not plugged into an electric outlet what does the clock get from the electric current from the outlet? A) ba

A letter also came from her husband, saying he hoped to be back early in March, and then they would get ready for that journey abroad which he had promised her

Unscramble the following sentence. cocina hay una

which is the best example of an abiotic factor in a ecosystem

(1.8 * 10^2) * (5 * 10^2)

7 + x > 5 a. x > 2 b. x > -2 c. x > -12 d. x > 12

Help with ease two math questions