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Paraphin [41]
3 years ago
7

Select all of the roots of x3 + 2x2 – 16x– 32.

Mathematics
1 answer:
Luba_88 [7]3 years ago
8 0

Answer:

-2, -4, 4

Step-by-step explanation:

You might be interested in
HELP! Evaluate negative 3 to the power of 2 + (2-6) (10)
Illusion [34]

Answer:

-49

Step-by-step explanation:

−32+(2−6)(10)

=−9+(2−6)(10)

=−9+(−4)(10)

=−9+−40

=−49

I hope this is right haha

5 0
3 years ago
If A = (7,9) and B = (3 , 12) what is the length of AB
V125BC [204]

Answer:

AB = 5 units

Step-by-step explanation:

Calculate the length using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+ (y_{2}-y_{1})^2

with (x₁, y₁ ) = A(7, 9) and (x₂, y₂ ) = B(3, 12)

AB = \sqrt{(3-7)^2+(12-9)^2}

      = \sqrt{(-4)^2+3^2}

      = \sqrt{16+9}

      = \sqrt{25}

       = 5

7 0
3 years ago
The average age of 4 children is 15 yrs . if the ages of their parents are added , their average age is 25 .find the age of thei
WITCHER [35]

The age of the father is 57 years old

<h3>Calculating mean of a population</h3>

Total age = Average age x Population

Average of the four children = 15

Population = 4

Total age of the four children = 15 x 4

Total age of the four children = 60 years

If the parents are added:

Population = 6

Average age = 25

Total age = 25 x 6

Total age = 150 years

Total age of the parents = 150 - 60

Total age of the parents = 110 years

The father is 4 years older than his wife

Let the age of the father be x

The age of the wife = x - 4

x + x - 4 = 110

2x = 114

x = 114/2

x = 57

Therefore, the age of the father is 57 years old

Learn more on The mean of numbers here: brainly.com/question/20118982

#SPJ1

6 0
2 years ago
Anyone know? Help is much appreciated
12345 [234]

Answer

ok

Step-by-step explanation:


6 0
3 years ago
(05.05) Which of the following inequalities matches the graph? (1 point)​
alexira [117]

Answer:  Choice A.   x \le -7

=====================================================

Explanation:

Every point in the shaded region has an x coordinate that is equal to -7 or smaller.

Example points include

  • (-8, 0)
  • (-10, 2)
  • (-9, -5)

The y coordinate does not matter. All that matters is the x coordinate. The boundary line is the equation x = -7, representing all points that have x coordinate of -7. The solid boundary line says to the reader "any point on this boundary line is part of the shaded region solution set". This inclusion is due to the "or equal to" of the inequality sign.

6 0
3 years ago
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