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Marysya12 [62]
3 years ago
9

Write a polynomial function of least degree with integral coefficients that has the given zeros. ​

Mathematics
1 answer:
Triss [41]3 years ago
5 0

Answer:

Step-by-step explanation:

To get the equation, you must create the factors containing the roots.

So for example the first set of roots can be produced from

(x -2)(x^2 + 9)

which equals (when expanded) x^3 + 9x - 2x^2 - 18 which when put in the correct order gives

x^3 -2x^2 + 9x - 18

The second one is a bit more difficult to judge.

-5  and -3+  square root(2)

I don't think this is a polynomial. The coefficent is not integral. (-3 +√2)

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PLEASE HELP PLEASE HELP PLEASE HELP​
Lera25 [3.4K]

Answer:

Parallel: y = -5x - 34 ; Perpendicular: y = 1/5x - 14/5

Step-by-step explanation:

Lines that are parallel have the same slope. Lines that are perpendicular have opposite reciprocal slopes. (Ex. 1/3 ⇒ -3)

We need to substitute the given values into the point-slope form equation.

Parallel:

y + 4 = -5(x + 6)

y + 4 = -5x - 30

y = -5x - 34

Perpendicular:

y + 4 = 1/5(x + 6)

y + 4 = 1/5x + 6/5

y = 1/5x - 14/5

4 0
3 years ago
1. (2x+5)+(3x-2)= <br> 2. (3x-2)-(2x+5)=<br> 3. (2x+5)-(3x-2=
DIA [1.3K]

Answer:

  1. 5x+3
  2. x -7
  3. -x +7

Step-by-step explanation:

Combine like terms. The associative and commutative properties of addition apply, as does the distributive property.

__

1. (2x+5)+(3x-2) = (2x +3x) +(5 -2) = 5x +3

__

2. (3x-2)-(2x+5) = 3x -2 -2x -5 = (3x -2x) +(-2 -5) = x -7

__

3. (2x+5)-(3x-2) = 2x +5 -3x +2 = (2x -3x) +(5 +2) = -x +7

_____

<em>Additional comment</em>

Note that swapping the order of operands in a subtraction problem (problems 2 and 3) will cause the sign of the result to reverse.

6 0
3 years ago
A triangle has vertices at (−4,−6),(3,3),(7,2). Rounded to two decimal places, which of the following is the closest approximati
Kryger [21]

The answer is

29.12

hope this helps

7 0
4 years ago
Find the unknown number in the proportion
Afina-wow [57]
2/3=x/148. First you cross multiply the 148 and 2. with that answer you divide that from 3 to get your x value

Answer: 98.66666666666667
7 0
4 years ago
A person standing on a second floor balcony drops keys to a friend standing below the balcony. The keys are dropped from a heigh
Lostsunrise [7]

Answer:

sqrt(3/8) = t

.61237 = t

Step-by-step explanation:

h(t)=−16t^2+10

Let h(t) = 4

4 =−16t^2+10

Subtract 10 from each side

4-10 =−16t^2+10-10

-6 = -16 t^2

Divide by -16

-6/-16 = t^2

3/8 = t^2

Take the square root of each side

sqrt(3/8) = sqrt(t^2)

sqrt(3/8) = t

.61237 = t

We only take the positive since time is not negative

6 0
3 years ago
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