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mihalych1998 [28]
3 years ago
13

Factor each x^3 +2x^2 -4x -8 =0

Mathematics
2 answers:
love history [14]3 years ago
7 0

Answer:

Standard form:

x3 + 2x2 − 4x − 8 = 0

Factorization:

(x + 2)2(x − 2) = 0

Solutions based on Jenkins–Traub algorithm:

x1 = x2 = −2

x3 = 2

Extrema:

Max1 = (−2, 0)

Min1 = (0.666667, −9.481481)

Step-by-step explanation:

ludmilkaskok [199]3 years ago
4 0

Answer:

x= -2,2 hope this helps

Step-by-step explanation:

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Is the system of equations consistent and independent, consistent and dependent, or inconsistent? y=−3x 12y=−6x 2 Select the cor
tresset_1 [31]

System of equations helps to compare two real-life situations. The system is an Independent Consistent System.

<h3>What is a System of the equation?</h3>

Inconsistent System

A system of equations to have no real solution, the lines of the equations must be parallel to each other.

Consistent System

1. Dependent Consistent System

A system of the equation to be Dependent Consistent System the system must have multiple solutions for which the lines of the equation must be coinciding.

2. Independent Consistent System

A system of the equation to be Independent Consistent System the system must have one unique solution for which the lines of the equation must intersect at a particular.

Given to us

y = −3x + 12

y = −6x + 2

As we have the value of y in both equations equate it against each other,

-3x + 12 = -6x + 2\\\\-3x + 6x = 2 -12\\\\3x = -10\\\\x  = \dfrac{-10}{3}

We know the value of x, substitute the value of x in the equation of y,

y = -6x + 2\\\\y = -6(\dfrac{-10}{3}) + 2\\\\y = +20 + 2\\\\y = 22

As the value of both x and y is unique, therefore, there is a unique solution for the given system of equations.

Thus, the system has a unique solution, therefore, the system is an Independent Consistent System.

Learn more about System of equation:

brainly.com/question/12895249

8 0
2 years ago
PLS HELP ASAP WILL MARK BRAINLIST !!! (If its right, might have to wait a day or to cause i have to see if its right)
fiasKO [112]

Answer:

1)y=3x-2

2)y=x-4

Step-by-step explanation:

1)As we know slope intercept from

y=mx-b

y=3/1x-2

y=3x-2

2)y=mx-b

y=1x-4

  y=x-4

4 0
3 years ago
Read 2 more answers
Plz help it’s important
m_a_m_a [10]

Answer:

  • hemisphere volume: 262 m³
  • cylinder volume: 942 m³
  • composite figure volume: 1204 m³

Step-by-step explanation:

A. The formula for the volume of a hemisphere is ...

  V = (2/3)πr³

For a radius of 5 m, the volume is ...

  V = (2/3)π(5 m)³ = 250π/3 m³ ≈ 261.799 m³

__

B. The formula for the volume of a cylinder is ...

  V = πr²h

For a radius of 5 m and a height of 12 m, the volume is ...

  V = π(5 m)²(12 m) = 300π m³ ≈ 942.478 m³

__

C. Then the total volume is ...

  V = hemisphere volume + cylinder volume

  V = 261.799 m³ +942.478 m³ = 1204.277 m³

__

Rounded to the nearest integer, the volumes are ...

  • hemisphere volume: 262 m³
  • cylinder volume: 942 m³
  • composite figure volume: 1204 m³

_____

As a rule, you only want to round the final answers. Here, the numbers are such that rounding the intermediate values still gives the correct final answer. That is not always the case.

6 0
3 years ago
How many feet is in 215 yards
Lilit [14]
645 feet.

Explanation:
We know that are 3 feet in a yard, so let's set up a proportion to solve this

x215
3 feet n
-------- = -----------
1 yard 215 yards
x 215

We are solving for n. To get from 1 to 215, we multiply by 215. So to get from 3 to the answer, we must multiply by 215 as well. 3 x 215 = 645, therefore that is the answer.
6 0
3 years ago
Read 2 more answers
Rex mixed x liters of fruit syrup with y liters of water to make a fruit punch. Three times the number of liters of water he mix
irga5000 [103]
3y = 2x + 6
x + y = 7

y = 7 - x
3(7 - x) = 2x + 6
21 - 3x = 2x + 6
21 - 6 = 2x + 3x
15 = 5x
15/5 = x
3 = x

x + y = 7
3 + y = 7
y = 7 - 3
y = 4

Solution is (3,4)

6 0
3 years ago
Read 2 more answers
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