What are all of the real roots of the following polynomial f(X)=x5+3x4+5x3+15x2+4x+12

Answer:

I can't see all of 3 but I can help with 5!!!

-2>-5

-1<4

-3>-10

-5<1

Step-by-step explanation:

for the negative ones, if they are both negative, the larger number is smaller than the other number. -5 is smaller than -2. for the other ones, positive numbers are larger than negative numbers.

this is the answer

x=2

y=3

Answer:

A

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

X = 15

15 - 15

0

Since we know what x is, we will substitute it for the value, 15. After we do that, we will subtract 15 from 15 to get 0. The equation will equal 0.

Have an amazing day!!

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Answer:

0.0334

Step-by-step explanation:

(4.575 ÷ 275) × 2

0.0167 * 2

Hope this helps!

Answer:

0.2975

Step-by-step explanation:

Answer: In order, the boxes are -9, 1, -9

Step-by-step explanation:

The vertex is the tip point of an absolute value function, which in this case is (-9,1).

The axis of symmetry is a symmetrical line through the fuction which goes through the vertex which would be x = -9.

The matrix shown represents its elements in rows and columns

Using the assumed matrix, the operation performed on the initial matrix to determine the new resultant matrix is R3 -> 2R2 + R3.

The question is incomplete, as the matrix is not shown.

So, I will give a general explanation.

Assume that the matrix is given as:

[tex]\left[\begin{array}{cccc}-4&1&2&4&0&-1&3&1&3&2&4&5\end{array}\right][/tex]

Multiply the elements on the second row (Row 2) by 2.

So, we have:

2R2 = 0 -2 6 2

Add these elements to the third row (Row 3).

So, we  have:

2R2 + R3 = 3 0 10 7

Replace the row 3 by the above elements.

i.e.

R3 -> 2R2 + R3.

So, we have:

[tex]\left[\begin{array}{cccc}-4&1&2&4&0&-1&3&1&3&0&10&7\end{array}\right][/tex]

Hence, the operation performed on the initial matrix to determine the new resultant matrix is R3 -> 2R2 + R3.

Read more about matrix at:

https://brainly.com/question/1821869

Answer:

9 tables

Step-by-step explanation:

First, subtract the remainder from the original:

Now, we know that she places 8 spoons per table, so let's divide the number of spoons by 8 to find the number of tables:

There are 9 tables at the retirement party.

-Chetan K

Answer:

Step-by-step explanation:

-9 - (-41)

minus and minus = plus

so 9+ 41 = 50

add the - back

-50 is ur answer

Answer:

  160°

Step-by-step explanation:

The angle sum theorem tells you the sum of angles in a triangle is 180°. The sum of angles in the given triangle is ...

  x + (x +4) + 20x = 180

  22x +4 = 180 . . . . . . . . . . collect terms

  22x = 176 . . . . . . . . . . subtract 4

  x = 8 . . . . . . . . . . . divide by 22

  20x = 160 . . . . find the largest angle

The measure of the largest angle is 160°.

Answer:
x = 12, B = 45°

Step-by-step explanation:
In the attachment,
A = C (vertically opposite angles)
C = B (corresponding angles)
•°• A = B

_________
A = B
5x - 15 = 2x + 21
5x - 2x = 21 + 15
3x = 36
x = 36/3
x = 12

B = 2x + 21°
B = 2(12) + 21
B = 24 + 21
B = 45°


=》See the attachment.


Hope it helps ⚜

Answer:

y = -8

Step-by-step explanation:

y = 3

is a "flat" horizontal line, which means every point on that line has the same y value no matter what x value we would consider.

any line parallel to that is then also a horizontal line with a constant y value. which y value ? well, the y coordinate of the given point tells us : (-2, -8)

so, the line equation is

y = -8

Answer:

C,  y=-8    

Step-by-step explanation:

Which equation represents the line that is parallel to y= 3 and passes through (-2,-8)?

y=3 means the y value is always 3, so the line is horizontal and parallel to the y axis.

A, x= -2    this is a vertical line

B. x= 3      this is a vertical line

C,  y=-8     this is a horizontal line, where y is always -8 so it is parallel and will pass through -2

D, y= 3x-2 this line will be at an angle

Answer:

Elias Nebiyu gives seven breads for his eight friends and he continues this give away for three days.

Step-by-step explanation:

3x 7/8 result is attached above.

Answer:

the product of that equation is X

Answer:

a.6.89 + t = 8.00

Step-by-step explanation: i took the quiz

Answer:

-10,-6,4,3,7

Step-by-step explanation:

negatives are backwords the higher it gets the smaller the value

Answer:

-10,-6,3,4,7

Step-by-step explanation:

dorry did it as fast as i can

Using a system of equations, it is found that the height of the TV is of 20 inches.

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

The height of the screen of the tv is one half the width plus 5 inches, hence:

h = 0.5w + 5.

Since the width is of 30 inches:

h = 0.5 x 30 + 5 = 15 + 5 = 20.

The height of the TV is of 20 inches.

More can be learned about system of equations at https://brainly.com/question/24342899

Answer:

S 36.87° E

Step-by-step explanation:

It moves in a certain direction determined by

(y/x) = arctan

arctan (-4/3) 306.87° arctan (-4/3) arctan (-4/3) arctan (-4/3) arctan (-4/3) arctan (-4/

S 36.87° is another way of describing this travel direction.

Answer:

x = 12

consider this a straight line:

A                        B                          C

-------------------------------------------------

solve for AB:

⇒ AB = AC - BC

⇒ AB = 2x - 7 - ( x - 3 )

⇒ AB = 2x - x - 7 + 3

⇒ AB = x - 4

solve for x:

⇒ x - 4 = 8

⇒ x = 8 + 4

⇒ x = 12

☆solve for AB:

→ AB = AC - BC

→ AB = 2x - 7-(x-3)

→ AB = 2x - x - 7+3

→ AB = x - 4

given, AB = 8

☆solve for x:

→ x - 4 = 8

→ x = 8 + 4

→ x = 12

Draw two lines of 7 cm at an angle of 85° and 120°. Then join the terminal of the lines. The quadrilateral is formed. The length of the fourth side of the quadrilateral is 7.5 cm.

It is a polygon that has four sides. The sum of the internal angle is 360 degrees.

Three of its four sides measure 7 centimeters each.

The angles between these sides have measures of 85° and 120°.

First, draw two lines of 7 cm at an angle of 85°. And from another end of the line draw a 7 cm line at an angle of 120°.

Then join the terminal of the lines. The quadrilateral is formed.

The length of the fourth side of the quadrilateral is 7.5 cm.

More about the quadrilateral link is given below.

https://brainly.com/question/6321910

Answer: The correct answer is 9.8

Step-by-step explanation:

Reviewed my Work and Studies to find out!

the multiplication table is displayed in the screenshot (up to 12)

Answer:

2 vertical and -11 horizontal

Step-by-step explanation:

Answer:

32

Step-by-step explanation:

The cost of a bus is $3.5 while the cost of a van will be $2.50

Let x be the admission fee for a van

Let y be the admission fee for a bus

If the admission fee for 2 buses and 1 van costs $9.50 and 3 buses and 2 vans enters the state park for a total admission fee of $15.50, then the required system of equation will be:

2x + y = 9.50

3x  + 2y = 15.59

Using elimination method:

4x + 2y = 19

3x  + 2y = 15.59

Subtract

x = 19 - 15.5

x = 3.5

Since 2x + y = 9.50

2(3.5) + y = 9.50
y = 9.50 - 7

y = 2.50

Hence the cost of a bus is $3.5 while the cost of a van will be $2.50

Learn more on systems of equation here: https://brainly.com/question/13729904

Answer:

Step-by-step explanation:

Since they are vertical angles, they are equal to each other

3x=80-x

solve

4x=80

x=20

Answer:

x = 20

Step-by-step explanation:

==> 3x = 80 - x

=>Pass x to the other side the - sign into to +

==> 3x + x = 80

==> 4x = 80

==>[tex]x = \frac{80}{4} [/tex]

==> 80 ÷ 4

==> x = 20

Answer: I don’t know if you want the area or just y but anyways, y= 9

Step-by-step explanation:

The question requires a scale factor (since both triangles have similar sides (an equal ratio is a good way to think about it) the 10cm side of the large triangle is proportionate to the same side of the smaller triangle.

In other words to get that scale factor (how much one shape is bigger than the other) we need to divide the 10 by 4 (you need to use the same side you can’t do 10/6 because they are completely different sides) 10/4 = 2.5

Now we know the larger triangle is 2.5 times bigger than the smaller triangle. This means the smaller triangle is 2.5 times smaller than the big triangle. So to find the base of the larger triangle we use a similar method we used to find the scale factor (but not divide multiply because when you want to find the bigger you multiply when you want to find scale factor/ smaller you divide) so 6* 2.5= 15 and since y is not the entire base only a part of it, we can do 15(which is the entire length of the big triangle base) - 6 = 9

Therefore y=9

Answer:

option C is correct.

Step-by-step explanation:

unit rate: [tex]\sf \dfrac{change \ in \ y}{change \ in \ x}[/tex]

A)  [tex]\sf \frac{10}{4} / \frac{5}{6} = 3[/tex]

B)  [tex]\sf \frac{1}{2} / \frac{2}{3} = \frac{3}{4}[/tex]

C)  [tex]\sf \frac{4}{9} / \frac{4}{3} = \frac{1}{3}[/tex]

D)  [tex]\sf \frac{3}{8} / \frac{1}{8} = 3[/tex]

/ - refers to division symbol