blevinemu blevinemu

15-07-2020
Mathematics

contestada

The equation x2 – 1x – 90 = 0 has solutions {a, b}. What is a + b? –19 –9 1 10

Respuesta :

rupsgos rupsgos

15-07-2020

Answer:

x^2-x-90=0 x^2-10x+9x-90 x(x-10)+9(x-10)

(x+9)(x-10)=0

Solutions are 0-9=-9 and 0+10=10.

10-9=1= a+b

Step-by-step explanation:

Answer Link

WBennett0502 WBennett0502

21-10-2020

Answer:

a + b = 1

I hope this helps!

Answer Link

Otras preguntas

Why is the level land in the Midwestern states good for farming?

Jason doesn’t see that his addiction to heroin is self-destructive. He is experiencing a. denial. b. displacement. c. compulsion. d. obsession.

A usually develops in a severe thunderstorm in areas with flat plains.

If the revenue for the week is $2000, and labor consists of two workers earning $8.00 per hourwho worked 40 each, what is labor cost as a percentage of revenue?

An organism has 12 chromosomes in its sex cells. It undergoes a process producing four daughter cells, each with 6 chromosomes. What is this process?

When it's alive its life gets short when I kill it its life gets prolongs what is it?

What type of volcano has alternate layers of ash and lava?

WHY DOES AUSTRIA - HUNGARY NOT WANT SERBIA TO GET BOSNIA?

Which verb agrees in number with its subject? Neither of Juan's friends __________ to be nominated. A. have hoped B. hope C. hopes D. are hoping

When were German measles (or rubella) last seen?