kcmevuw9dn
kcmevuw9dn
19-09-2020
Mathematics
contestada
Help me with this, please.
Respuesta :
mhanifa
mhanifa
20-09-2020
Answer:
- 5 ± 11
Step-by-step explanation:
2x² + 5x - 12 = 0
a = 2, b = 5, c = -12
x = (-b ± D)/2a
D = √b² - 4ac = √5² -4*2*(-12) = √25+96 = √121 = 11
x = (-5 ± 11)/4
Correct choice is the second one or B
Answer Link
VER TODAS LAS RESPUESTAS ( 21+ )
Otras preguntas
Describe the motion of the box. A)The box will not move. B) The box will move to the left. C) The box will move to the right. D) The box will move the left a
What was an effect of urbanization? A) Living conditions in city centers improved. B) The middle class grew in cities. C) Cities became less segregated. D) The
The average pulse rate for someone age 6-15 years is ___ to ___ beats per a minute. 50 - 70 70 - 100 25 - 40 150 - 200
Steroids can decrease an athlete's ability to perform by causing injuries that are difficult to recover from. This happens because steroids don't foster overall
What is 321 divided by 1000 please show work?!
where does the parentheses go on this equation, -20+4×2+7-35= -19
An unknown solution has a pH of 7. How would you classify this solution? acidic basic neutral There is no
-f=-100 solve for f f= wold the answer be 1
9.88,10.19,11.15,11.70,12.01,12.46,13.22,13.29,14.00,14.38,14.50,14.50,15.14,15.16,15.16,15.16,15.54,15.96,16.20,16.22,16.44,17.58,20.38,21.15 is the data set,
¿Por qué quiere cambiar un cheque de viajero Julio ?
