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Luba_88 [7]
3 years ago
9

What are the solutions of the equation 3x^2+6x-24=0

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
5 0

Answer:

x = - 4, x = 2

Step-by-step explanation:

Given

3x² + 6x - 24 = 0 ( divide through by 3 )

x² + 2x - 8 = 0 ← in standard form

(x + 4)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

x - 2 = 0 ⇒ x = 2

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harkovskaia [24]
Negative multiplied by a negative is positive
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combine them all up and you get ......
16 x^{2} is the answer :-)
4 0
3 years ago
True or false: randomization allows each member of the population to have an equal probability of being selected for the sample
tia_tia [17]

Answer:

True

Step-by-step explanation:

Simple random sampling chooses at random members of the population. This allows all members an equal probability of being selected for the sample.

4 0
3 years ago
Una estrategia de cálculo mental con
Softa [21]

Esta estrategia se puede aplicar sumando  15,75 + 0,25, –1,8 + –0,20, 3,5 + 12,5 y 2,62 + 7,38 antes de sumar el tercer número dado en cada caso.

<h3>¿En qué consiste está estrategia?</h3>

La estrategia propuesta consiste en sumar dos números decimales que den como resultado un número entero antes de sumar el tercer número decima. Por ejemplo si teneos  1,4 + 0,6  + 1,2, se debe sumar primero 1,4 + 0,6 lo que es igual a 2 antes de sumar el 1,2.

<h3>¿Por qué utilizar esta estrategia?</h3>

Este estrategia es beneficiosa porque facilita sumar números decimales.

<h3>¿Cómo aplicar está estrategia?</h3>
  • 15,75 + 1,2 + 0,25 = 16 (0,25+15,75) + 1,2 = 17,2
  • (–1,8) + 2,45 + (–0,20) = -2 (-1,8-0,20) + 2,45 = 0,45
  • 3,5 + 11,8 + 12,5 = 16 (12,5+3,5) +11,8 = 27.8
  • 7,38 – 1,5 + 2,62 = 10 (7,38+2,62) + 2,62 = 12,62

Aprenda más sobre números decimales en: brainly.com/question/24620232

#SPJ1

7 0
1 year ago
Can someone pls explain I need help
erastovalidia [21]

Answer: 25

Step-by-step explanation: I just entered the equation into my calculator like so.

A negative number times a negative number equals a positive number.

I hope this helps, have a nice day.

4 0
3 years ago
What's greater?<br> -8 or -1/20
ankoles [38]
You can say  :  -1/20 = -0.05 so -8<-0.05 so -1/20 is greater because its negative :))
i hope this is helpful
have a nice day
5 0
3 years ago
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