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

Now, I have no means of totally disproving such charges as this which the Judge makes. A man cannot prove a negative; but he has a right to claim, that when a m

Individuals with anorexia nervosa often show which personality characteristic?

According to Yale Professor Craig Wright, what is a faun

Write expression for 48 is 6 times greater than 8

_____ occurs when two brands receiving equal treatment borrow from each other's brand equity. a. ingredient branding b. cooperative branding c. complementary br

Write an equation of the line that is perpendicular to y = 1 2 x + 3 and passes through the point (10, -5).

In any economy, what are medicine, eye exams, and massage sessions examples of?

98 points! Easy! Show work!

Can someone see if these are right?

Which of these is one way to quantify the personal value of a good service?