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Westkost [7]
3 years ago
5

Solve by completing the square. 3x^2+x-2=0

Mathematics
1 answer:
rodikova [14]3 years ago
3 0

Answer: x  =  2 /3  ,  −  1

Step-by-step explanation:

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What is the solution set to the inequality 5(x - 2)(x + 4) > 0?
Butoxors [25]

Answer:

You selected the correct answer: {x | x <<em> </em>-4 or x > 2}

Step-by-step explanation:

5(x - 2)(x + 4) > 0

Use FOIL method to expand (x - 2)(x + 4):

5(x^{2} + 2x - 8) > 0

Distribute 5 into (x^{2} + 2x - 8)

5x^{2} + 10x - 40 > 0

Divide all terms by 5 from both sides of the inequality:

\frac{5x^{2}}{5}  + \frac{10x}{5}  - \frac{40}{5} > \frac{0}{5}

x^{2} + 2x - 8 > 0

Factor the trinomial:

(x + 4) ( x - 2)  > 0

x < -4 or x > -2

Therefore, the solution set to the inequality is {x | x < -4 or x > 2}

<em>Interval notation:  </em>(-∞, -4) ∪ (2, ∞)

8 0
3 years ago
31. A driver
Gnesinka [82]

Answer:

D. of any age

Step-by-step explanation:

A driver  can be charged with Driving While Intoxicated of any age.

It doesn't matter how old you are because a crime is a crime. If you are younger there will most likely be less of a punishment as adults.

8 0
3 years ago
The equation d=m/v can be used to calculate the density, d, of an object with mass, m, and volume, V. Which is an equivalent equ
Rasek [7]

Answer:

B

Step-by-step explanation:

because equal to mass over volume

6 0
2 years ago
1
nadya68 [22]

Answer:

64

Step-by-step explanation:

2, 6, 28, 23,7.64.

because 64 is the furthest away from any other number

5 0
2 years ago
Divide x^6/(x^2+1) Please help quickly and thank you!
konstantin123 [22]
I think it's x^4.

(Honestly, I feel 90% positive of this answer, so maybe just get one more opinion!)
3 0
3 years ago
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