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

A brick has a base area of 38 1/4 square inches and a height of 2 1/2 inches. What is the volume of the brick?

To receive a C grade, a student must average more than 77 but less than or equal to 85 . If Ethan received a C in the course and had five grades of 78 , 79

Which point is on the interior of ∠BAC? point D point B point C point A

List and describe ten characteristics of a machiavellian ruler

Guys please help me I'm Really stuck on this one please help if you can

What is doublespeak?

What are two factors that contributed to the rise of a scientific revolution in Europe in middle 1500s

Which statement is completely true? A. Romanticists focus on everyday life and even social problems. B. Writers influenced by Postmodernism value logic, clari

The united states government has passed laws (29 cfr 1910.1200) that require all suppliers to provide content and health information on the chemicals or supplie

What makes proteins the ideal type of compounds to act as enzymes?