katymoncrief9379 katymoncrief9379

27-04-2018
Mathematics

contestada

Uset he discriminant to find the type of solutions (to rational,two irrational,ot one rational) -4x2+9x+9=0

Respuesta :

Cowmilk Cowmilk

27-04-2018

[tex] {b}^{2} - 4ac \\ ( {9)}^{2} - 4( - 4)(9) \\ 81 - 16(9) \\ 81 - 144 \\ - 63[/tex]
Two imaginary irrational solutions. Since 63 is not a perfect square that makes the solution irrational.

Answer Link

Otras preguntas

Which of the following aspects of the environmental movement addresses the public’s right to intervene in environmentally damaging activities on private land? a

Which equation is true for the value x = 15? 2(x + 3) = 40 2(x − 5) = 30 2(x + 5) = 40 x + 2x = 30 3x − x = 45

How did the Nathan’s Fourth of July Hot Dog Contest begin?

In July 1776, how many people were living in the colonies?

When is the anniversary of the signing of the Declaration of Independence?

What special group advises the President of the United States? a. The Cabinet b. The Electoral College c. The Executive Branch

How long is the term of Supreme Court justices? a. 20 years b. life c. until he or she reaches age 75

How did the American preacher Jonathan Edwards’s preaching style compare with the British preacher George Whitefield’s?

How long is the term of Supreme Court justices? a. 20 years b. life c. until he or she reaches age 75

How many stripes are there on the American Flag? a. 10 c. 50 b. 13 d. 100