msmith16 msmith16

04-09-2018
Mathematics

contestada

Find the number of real number solutions for the equation. x^2+9x+20=0
A.) Can't be determined by graph
B.) 1
C.) 2
D.) 0

Respuesta :

JulianVella JulianVella

04-09-2018

x^2+9x+20 = 0
factorises to (x+5)(x+4)=0
so x = -5 or -4
Therefore answer is C.) 2

Answer Link

Otras preguntas

Is 68.993 an irrational number? yes no

For a 12-person team, how many additional employees will need to be hired to meet the labor hours needed without overtime

The purpose of the "Big Stick" Policy in Latin America was to: * O A. Use peaceful if necessary to protect U.S. interests O B. Use force if necessary to protect

Which is the hardest to demolish A. a snow fort B. a bookcase C. a dollhouse D. a house made of cards

Which part of the brain, important in planning and flexible problem solving, continues to develop throughout adolescence

What is the radius of a circle that has a circumference of 3.14 meters?

2x=1.6-1.2 what is x?

PLEASEREE Help with what you can

help, i dont get it. 100 points_

is x+8=0 linear or not linear. if yes, write in standard form