03-06-2020
Mathematics

contestada

If 4x^2 – bx + 81 is a perfect square trinomial. Then the value of b is

Respuesta :

SvetkaChem SvetkaChem

03-06-2020

Answer:

b = 36

Step-by-step explanation:

perfect square: a² - 2ac + c²

4x²- bx + 81 = (2x)² - bx + 9² = (2x)² - 2*(2x)*(9) +9²= (2x)² - 36x +9²,

so b = 36

Answer Link

Otras preguntas

Who was Thomas Aquinas? A. a thirteenth-century scientist who tried to prove that God did not exist B. a thirteenth-century warrior who invaded Palestine to reg

Quick help, please? What is the significance of the similarities and differences between William Kamkwamba's story and Calvin Stanley's story? All I need to kno

18.2 18.45 18.6 18.76 I needed to order them smallest to largest did I do it right?

what is longitude? what is latitude?

Does wind have atoms and molecules in it?

Which three components make a strong inference? A. prior knowledge, good inferences, and personal experience B. personal experience, evidence from the text, and

describe two different ways that a pollen grain can get to the stigma of a pistil ?

what celebrations do muslims do in the festival of Mawlid???

what is longitude? what is latitude?

An increase in which of the following areas created a decline in labor union membership? automobile manufacturing coal mining steelmaking service industry