0=x^2-4x+3 how many roots does this equation have

Answers

Answer 1

Answer:

No complex roots; 3 real roots

Step-by-step explanation:

If a third order polynomial has any complex roots, then as a rule it has 1 real root and 2 complex roots.  In this particular case, the polynomial has three real roots, as can be determined by graphing the function.  The graph crosses the x-axis in 3 places.


Related Questions

At the movie theater , child admission is $5.80 and the adult admission is $9.20. On wednesday , 113 tickets were sold for a sales of $866.20. How many adult tickets were sold that day?

Answers

Answer:

62 adults and 51 kids

Step-by-step explanation:

(A+) It takes a painter and his friend 8 hours to paint a room. If the painter was working alone, it would take him 12 hours less than if his friend was working alone. How long does it take the painter to paint the room by himself?

Answers

Answer:

24 hours

Step-by-step explanation:

PLEASE HELP! I’ll GIVE THE BRAINLIEST TO WHOEVER ANSWERS CORRECTLY!!

Answers

Answer:

12

Step-by-step explanation:

There is a column that says blue, and if you look under it, you will see that there was a total of 12 cars that were blue and passed by.

please help i will mark you as brainleist!​

Answers

Answer:

A. 96.666666666666666666666...

B. 92.3333333333333333333333...

C. 82.4

D. 13

E. 29

F. 26

If you start at the point (0,0) and walk on a slope that goes up hill, is it positive or
negative in slope?
Positive
Negative
Neither
Both

Answers

Answer:

Positive

Step-by-step explanation:

A line with a positive slope on a graph will go upward if you saw the graph left to right.

If you walked on the line, you would walk on a "hill".

It's y-values increase as it's x-values increase.

(08.01 LC)
The track-and-field coach wants to know whether the students in the entire school prefer track races or field events. The coach draws a random sample from the following groups:

All students in each grade
All teachers in the school
All boys in each grade in the school
All students on the track-and-field team

Which group best represents the population she should take a random sample from to get the best results for her survey?

Answers

Answer:

all students on the track-and-field team

Step-by-step explanation:

if the coach wants to find out if they prefer track or field he/she has to ask the people who are experiencing it right now and tell him or her if they prefer this or not

Answer:

It is All students on the track-and-field team..  Im in flvs 7th and I know Im VERY late and I am currently doing the test RN so Thats all GUYS!

Step-by-step explanation:

help ity help ity help help help

Answers

- 2 is best described as a coefficient

- x is best described as variable

- 16 is best described as a term

2x, when x = 10

2(10)

20

The lowest temperature in January was
7°F. Which inequality represents all the
temperatures x in January?

Answers

Answer:

x≥7°F

Step-by-step explanation:

This is because 7°F is the lowest temperature and so all other temperatures of the day were greater than that one.

I need help please
Thank you

Answers

。☆✼★ ━━━━━━━━━━━━━━  ☾  

Volume = length x width x height

Substitute the values in:

Volume = 10 x 9 x 32

Solve to get the answer

Volume = 2880 in^3

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Stay Brainly! ヅ    

- Ally ✧    

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Answer:

[tex]2880 {in}^{3} [/tex]

Step-by-step explanation:

[tex]V

=

w

h

l

\\

=

10

·

32

·

9

\\

=

2880

{in}^{3} [/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

5. Find the area of an equilateral triangle with a
perimeter of 24 in.
what’s the area?

Answers

Answer:

18

Step-by-step explanation:

24÷3=6 6×6=36 36÷2=18

The temperature was 54 at 7:00 a.m. At 3:00 p.m. on the same day, the temperature was 82. What is the rate of change in temperature during this time?

Answers

Answer:

The rate of change was 3.5 degrees / h.

Step-by-step explanation:

In order to calculate the rate of change we need to divide the variation of temperature by the variation of time. Since the time is given to us in a 12 h format (am/pm), we first need to convert it to 24 h. To do that we sum the time that is "pm" by 12, we have:

time2 = 3 + 12 = 15

Therefore the rate of change in temperature is:

rate = variation of temp / variation of time

rate = (temp final - temp init) / (time final - time init)

rate = (82 - 54) / (15 - 7) = 28 / 8 = 3.5 degrees / h

The rate of change was 3.5 degrees / h.

You get a student loan from the New Mexico Educational Assistance Foundation to pay for your educational expenses this year. Find the interest on the loan if you borrowed $2,000 at 8.5% for 3 year.

Answers

Answer:

$554.58

Step-by-step explanation:

The interest on the loan can be computed by first determining the future value of the loan in three years as follows:

FV=PV*(1+r)^n

PV is the amount of the loan which is $2,000

r is the interest rate which is 8.5%

n is the number of years which is 3 years

FV=$2000*(1+8.5%)^3=$ 2,554.58  

Since the value of the loan in three years is $ 2,554.58 ,the interest on the loan is the difference between the future value and the present value

interest=$ 2,554.58-$2,000.00=$554.58

When she was in year 8,Sarah could run 800 meters in 3 minutes and 20 seconds.

Three years later, when she was in year 11, she could run 800 meters in 2 minutes and 40 seconds.

Find the percentage improvement in her time and show your working out.

Answers

Answer:

125%  improvement

Step-by-step explanation:

3min 20sec = 200sec

2min 40sec = 160sec

800meters/ 200sec = 4 meters per second

800meters/ 160sec = 5 meters per second

5/4 : x/100

4x = 500

x = 125

When Colton commutes to work the amount of time it takes him to arrive is normally distributed with a mean of 41 minutes and a standard deviation of three minutes what percentage of his commute will be between 33 and 35 minutes to the nearest tenth?

Answers

Answer:

The Probability that commute will be between 33 and 35 minutes to the nearest tenth =  0.0189 ≅1.89%  

Step-by-step explanation:

Step(i):-

Given mean of the Population(μ) = 41 minutes

Given standard deviation of the Population (σ) =  3 minutes

let  'X' be the random variable of Normal distribution

Let X = 33

[tex]Z = \frac{x -mean}{S.D} =\frac{33-41}{3} = -2.66[/tex]

let X = 35

[tex]Z = \frac{x -mean}{S.D} =\frac{35-41}{3} = -2[/tex]

Step(ii):-

The Probability that commute will be between 33 and 35 minutes to the nearest tenth

P(33≤ X≤35) = P(-2.66 ≤X≤-2)

                     = P( X≤-2) - P(X≤-2.66)

                     =  0.5 - A(-2) - (0.5 - A(-2.66)

                     =   0.5 -0.4772 - (0.5 -0.4961)  (From normal table)

                    = 0.5 -0.4772 - 0.5 +0.4961

                     = 0.4961 - 0.4772

                    = 0.0189

The Probability that commute will be between 33 and 35 minutes to the nearest tenth =  0.0189 ≅1.89%                  

                     

Which of these is NOT equivalent to 2-37

Answers

Well, i'm gonna need a picture so I can answer it...

I need a pic to answer

Order from least to greatest
A.5/16 inch
B. 1/8 inch
C.1/2 inch
D.1/16 inch
E.3/8 inch
F.1/4 inch

Answers

Answer:

1/16, 2/8, 1/4, 3/8, 1/2, 5/16

Step-by-step explanation:

Answer: 1/16 < 1/8 < 1/4 < 5/16 < 3/8 < 1/2

Think of these fraction as a slice of pizza. You get the smallest fraction then you get a small slice of pizza. You get the biggest slice then you get a big slice of pizza.

1/2 is the biggest so that means if u get a pizza cut into 2 slices and you get 1 that is the biggest piece you get.

Can someone solve these quick please

Answers

Answer:

brickopoijhukkjijhukkiouhijkjkj

Step-by-step explanation:

Answer:

hehehehehehehhehheheheheheh

Step-by-step explanation:

There are 86 people coming to my party and each person will need a cup how many packages of cups will i buy if one package of cups has 25 cups

Answers

Answer:

i think its 4 packages

Step-by-step explanation:each package is 25 so if you get 2 its 50 + another package would be 75  so you need one more.

hope this helps

Answer:

You need to buy 4 packages of cups.

Step-by-step explanation:

Since you can't buy half a package and everyone needs a cup, you have to buy 4 packs. Even though it's 100 cups, only 3 packs (75 cups) wouldn't be enough cups for everyone to have one.



A scale drawing of a regular parking lot is shown. If the length (longer side) of the parking lot is actually 48 meters, what is the scale factor for the drawing?

(Answer must be written to the nearest hundredth below. )

______ meters

Answers

First, write the values in a ratio of long side to small side

Which statement best describes the data in a scatter plot where the y-values are decreasing as the x-values are increasing? *

A.The data can best be modeled by a vertical line.
B.The data can best be modeled by a horizontal line.
C.The data can best be modeled by a line with a positive slope.
D.The data can best be modeled by a line with a negative slope.

Answers

Answer:

D

Step-by-step explanation:

can you put 26 45 21 35 38 50 52 28 34 26 40 42 48 25 30 in order

Answers

Answer:

21 25 26 26 28 30 34 35 38 40 42 45 48 50 52          

Step-by-step explanation:

21 25 26 26 28 30 34 35 38 40 42 45 48 50 52          

The length of the sides of a square is 10 meters. Find the length of the diagonals of the square

Answers

。☆✼★ ━━━━━━━━━━━━━━  ☾  

Use Pythagoras' theorem:

a^2 + b^2 = c^2

Sub the values in:

10^2 + 10^2 = c^2

200 = c^2

Square root to find the answer:

c = 14.14

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The length of the diagonals of the square is equal to 14.142 or [tex]10\sqrt{2}[/tex] meters.

Given the following data:

Length of sides = 10 meters.

To calculate the length of the diagonals of the square:

In order to find the length of the diagonals of the square, we would multiply the one side of the square by the square root of 2.

Mathematically, this is given by the formula:

[tex]Diagonal = length \times \sqrt{2}[/tex]

Substituting the given parameters into the formula, we have;

[tex]Diagonal = 10 \times \sqrt{2}\\\\Diagonal = 10 \times 1.4142[/tex]

Diagonal = 14.142 meters.

Find more information: https://brainly.com/question/11037225

94 POINTS AND BRAINLIEST TO BEST ANSWER!!!

Answers

Answer:

54

Step-by-step explanation:

Diagonals are perpendicular so

2x+ 90 + 3x = 180  since this forms a triangle

Combine like terms

5x+ 90 = 180

Subtract 90 from each side

5x +90-90 =180-90

5x = 90

Divide each side by 5

5x/5 = 90/5

x =18

We want to find Angle ABD

ABD = 3x = 3*18 = 54

Answer:

HOPE THIS HELPS PLS DON"T TAKE IT DOWNN

Step-by-step explanation:

Say that the intersecting point of both diagonals is O

that means that in triangle AOB, all angles add up to 180º that is just the definition of sum of angles in a triangle

and the m<AOB = 90º, diagonals in a rhombus are perpendicular

that means that

90º + 2x + 3x = 180º

90º + 5x = 180º

5x = 90º

x = 18º

if m<ABD = 3x

then its equal to m<ABD = 3(18)

m<ABD = 54º

A drawing of a box has dimensions that are 2 inches, 3 inches, and 5 inches. If the drawing is on a 1: 8/3 scale, What are the dimensions of the actual box?

Answers

Answer:

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

Answer: the dimensions would be 1/8

Step-by-step explanation:

An object moves in simple harmonic motion with amplitude 15 m and period 2. At time t=0 minutes, it’s displacement d from rest is 0 m, and initially it moves in a negative direction. Give the equation modeling the displacement d as a function of time t.

Answers

Answer:5

Step-by-step explanation:


I’m pretty sure it 5

The scatter plot shows data collected on the number of students who get off the bus at the first and the last stop of various school bus routes. Which statement is true? A. The data in the scatter plot shows a negative linear correlation. B. The data in the scatter plot shows a nonlinear correlation. C. The data in the scatter plot shows a positive linear correlation. D. The data in the scatter plot shows no correlation.

Answers

Answer:I think it’s A but I’m not sure and atleast there is an answer to this

Step-by-step explanation:

Hence, the option (A) is the correct answer.

What is the data collection?

Data collection is defined as a method of collecting, analyzing data for the purpose of validation and research using some techniques.

Here given that,

The scatter plot shows data collected on the number of students who get off the bus at the first and the last stop of various school bus routes

As the students get off at the first and the last stop they both are in opposite direction/negative direction.

Hence, the option (A) is the correct answer.

To know more about the data collection

https://brainly.com/question/17353007

#SPJ5

please help i'll mark brainliest if your answer is correct

Answers

Split the shape in 3 rectangles
4x2=8x2= 16 ( the bottom and top rectangle)
6x2= 12 (middle rectangle)
16+12=28

what is the value of the expression r +1988 if r =2976​

Answers

I think 4,967


Substitue r with 2976-

r +1988 to 2976 +1988

/-

Which value of the vanable is a solution of the inequality? t<-6
7
6
-6
-7

Answers

Answer:

-7

Step-by-step explanation:

-7 is a solution of the inequality t<-6

By the way, for the number -6, you can think about a temperature below zero. When it is freezing 6 degrees below zero (-6) it is pretty cold.

The question is which number(s) can you substitute for t so that the formula (the inequality) is True.

So let's try for each given value and substitute it for t in t<-6

if you substitute 7 for t you get this:

Is 7 smaller then -6 ?

No that is not true because 7 is bigger then -6.

if you substitute 7 for t you get this:

Is 7 smaller then -6 ?

No that is not true because 7 is much bigger then -6.

if you substitute 6 for t you get this:

Is 6 smaller then -6 ?

No that is not true because 6 is much bigger then -6.

if you substitute -6 for t you get this:

Is -6 smaller then -6 ?

No, that is NOT true because -6 is exactly the same as -6 but NOT smaller then -6...

if you substitute-7 for t you get this:

Please think about temperatures below zero again.

Is -7 colder the -6 ? If so, then the statement is true...

Is -7 smaller then -6 ?

Yes that is true!

So -7 is a solution of the inequality t<-6

Bradley goes to a fast food restaurant and orders some tacos and burritos. He sees on the nutrition menu that tacos are
140
calories and burritos are
430
calories. If he ordered
7
items and consumed a total of
2720
calories, how many tacos and how many burritos did Bradley order and eat?

Answers

Answer:

6 burritos and 1 taco

Step-by-step explanation:

(6*430)+(1*140)

=2720

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