Dreamcatcher0107
Dreamcatcher0107
15-05-2017
Mathematics
contestada
How do I solve for r
Respuesta :
ashsmith
ashsmith
15-05-2017
to solve for R you use PEMDAS
Answer Link
FLORC
FLORC
15-05-2017
4 (r-10)^2+2=38
expand 4 [(r-10)(r-10)]+2=38
solve r-10×r-10
4 (r^2-20r+100)+2=38
-2 both sides
4 (r^2-20r+100)=36
÷4 both sides
r^2-20r+100=9
-9 both sides
r^2-20r+91=0
(r-7)(r-13)=0
r=7,13
Answer Link
VER TODAS LAS RESPUESTAS ( 35+ )
Otras preguntas
The population of a small town in 1990 was 1,200 people, and the population in 2000 was 2,700 people. Let x represent the number of years since 1990. Let y repr
Which best describes the Muslim presence in north Africa in the late seventh and early eighth centuries
All of the following were key components of the Henry Clay's American System EXCEPT which one?
Help please The Indian leader who advocated a nonviolent approach to independence was _____. Bose Gandhi Nehru Akbar
Who was the winning general for the North in the Civil War? Ulysses S. Grant Robert E. Lee Abraham Lincoln Winfield Scott
Which of the following was a power granted to Congress under the Articles of Confederation? levy and regulate taxes declare and conduct war create and regulate
Damon and Pythias Damon and Pythias had been the best of friends since childhood. Each trusted the other like a brother, and each knew in his heart there was no
Which of the following best explains how and why the practice of Native American slavery changed over time? Over time, Native Americans replaced African slaves
What evidence from the text suggests that Macbeth is prepared to die? a. "Curses, not loud but deep, mouth-honor, breath / Which the poor heart would fain deny
Which of the following is considered a bronchodilator? a. Acetylcysteine b. Guaifenesin c. Theophylline d. Epinephrine HCL
