0=x^2-4x+3 how many roots does this equation have
Answers
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
HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer: probably c
Step-by-step explanation:
i divided it and got 401.063963
Answer:
C.
Step-by-step explanation:
trust -.-
Find the next three terms in the sequence. Separate the numbers by a space.
1, 3, 7, 13, 21, ···
Answers
Answer: The correct answers are 31, 43, 57
Step-by-step explanation:
The equation is to add 2 per sequence step:
1 +2
3 +4
7 +6
13 +8
21 +10
31 +12
43 +14
57
Please remember to vote this answer as Brainliest if I earned it!
Answer:
31, 43, 57
Step-by-step explanation:
Work out the differences between the terms of the sequence:
\(1 \underset{+2}{\longrightarrow} 3 \underset{+4}{\longrightarrow} 7 \underset{+6}{\longrightarrow} 13 \underset{+8}{\longrightarrow} 21\)
The differences between terms increase by 2 each time.
Therefore, from inspection of the pattern, the next three terms in the sequence are:
21 + 10 = 3131 + 12 = 4343 + 14 = 57Please help me with #5
Simple Interest: formula I=PRT
P=$ or principal
R=%
T=time(in years-divide by 12 if given months)
“Any absurd answers will be reported”
Answers
Can you please help me?
Answers
Answer:
Step-by-step explanation:
The speed of one bicyclist was 14.5mph, speed of the other bicyclist was 17.5mph.
8 times the sum of 2 and 15
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Answer:
The answer is 8 * 2+15
Step-by-step explanation:
What is the difference between fractions as parts and fractions as quantity
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The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
Answers
For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
Brett bought three pairs of jeans and five polo shirts. The jeans that regularly sell for $79 were
35% off and the polo shirts that regularly sell for $39 were 15% off. If sales tax is 5.75% and he
gave the cashier $350, how much did he receive back in change?
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Wat is the product of 8/9 and 2/7
Answers
Answer:
16/63
Step-by-step explanation:
Given problem,
→ (8/9) × (2/7)
Let's solve the problem,
→ (8/9) × (2/7)
→ (8 × 2)/(9 × 7)
→ 16/63
Hence, answer is 16/63.
please help, will give brainliest
Answers
Answer:
4/7
Step-by-step explanation:
4/7 is squared and then square rooted, changing nothing.
help me its due today :')
Answers
Answer:
9 feet easy to solve this is answer
i need help pls help
Answers
Answer:
x is 5
Step-by-step explanation:
what are the 3 steps to become civilizations?
Answers
Answer:
Civilizations expand through trade, conflict, and exploration.
Step-by-step explanation:
PLEASE HELP WILL GIVE BRAINLIEST!--
What value of y makes the equation true?
3(2y + 3) = 9y - 15
Answers
Answer:
8
Step-by-step explanation:
First, distribute the 3 on the left side of the equation:
6y + 9 = 9y - 15
Next, move the variables to one side of the equation and the constants to the other:
6y - 9y = -15 - 9
Simplifying the left side:
-3y = -24
Finally, solve for y by dividing both sides by -3:
y = 8
Therefore, the value of y that makes the equation true is 8.
a rental clothing store is running the following incentive offers customers.
Answers
Answer:
Amount left over after the discount:
Option 1: $82
Option 2: $39.25
Option 3: $62.8
Step-by-step explanation:
B) Option 2
Clearly, you would have to spend less money after the discount and it provides you with more money to be saved.
Sorry if Im wrong
Hope I helped
Please Hurry. I need this answer quickly please.
Answers
Answer:63
Step-by-step explanation:
multiply 72 by 7 then divide i by 8
(72×7)/8
=63
It's 63.
simplify the equation 7/8×72 multiple 7×9 solution is 63
Simplify the expression below.
13y + x - 7y
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\(\text{Simplify:}\\\\13y + x - 7y\\\\\text{Combine like terms}\\\\13y + x - 7y\\\\6x+y\\\\\text{Since you can't combine anything else, that will be your answer}\\\\\boxed{6y+x}\)
Answer: =x+6y
Explanation:
3x+4=7 solve equation with work.
Answers
3+4=7
3x1=3
3+4 =6 so X =1
Answer:
X=1
Step-by-step explanation:
reverse multiplication -
7=4+3x
we know one value so we just isolate the 3x
7-4=3, meaning that 3x has to be equal to 3.
Then we just do 3/3=1 so therefore x=1
Also if you wanna check it then you can plug x=1 into the equation.
4+3*x or 1=4+3=7
Hopefully this helped out, have a great day
Which is the correct answer
Answers
Answer:
The mode is equal to the minimum
Is the correct answer
Step-by-step explanation:
In this case,
Mean = (52+48+48+54+50)/5
Mean = 50.4
The Median = 50,(the middle value)
Mode = 48 (the value that appears most often)
Now, the minimum value(smallest value) of the data set is 48
so,
The mode is equal to the minimum
Answer: the mode is equal to the minimum
Step-by-step explanation:
Okay so I need help please correct answers only and I will give brainilest I need the answers today and right now my math is do my friend was helping me but she has a test to do.Also do not say it's too blurry cause it's not and you are just using an excuse to take my points I fell for it once and I am not falling for it again.Sorry if that sounded mean.
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I can not help on slide 11 question 1. Just label the lines with the given subjects and plot the points. At midnight Princeton was at -3.5 degrees while new haven was at 1.2. New haven is warmer by 4.7 degrees C. If the point (3,-2.5) was plotted, it would mean 3 hours after midnight (3 am) it would be -2.5 degrees C.
Point C is at (5,8) not (5,7). Point D is at (-3,-4) not (-4,-3).
Hope you pass it, but keep in mind I am not a professional math person. So it would be best if you double check it.
Please help me asap! I will give brainly!
Answers
Answer:
Figure 4 : 9 by 4 rectangle
17 red squares is figure 8
51 yellow squares
The pattern is +2 for the length, and the width stays the same. Hope this helped. :)
Answer:
17 rojo
51 amarillo
en el dibujo son 11 rojos y 33 amarillo
Step-by-step eplanation:
Sindy bought a pair of jeans with a price tag of $68.00. She paid 8% sales tax. How much sales tax did she pay and what was her final price including tax?
Answers
Answer:
Step-by-step explanation:
Sindy paid $5.44 in sales tax, and her total price was $73.44.
Sales Tax: 68 x .08= 5.44
Final Price: 68 + 5.44= 73.44
Answer:
To find sales tax, you need to find the percent of;
$68.00 * 8%
$68.00 * 0.08
= $5.44
$5.44 is the sales tax
Add the sales tax to the original amount:
$68.00 + $5.44 = $73.44
So the final price including tax is equal to $73.44.
1. A survey asked 200 Grade 4 students about their reading preferences. Based on Graph #1, about how many of them would you expect to prefer comic books?
A. 10
B. 20
C. 70
D. 80
E. 100
2. About how many students do not prefer non-fiction?
A. 60
B. 75
C. 100
D. 150
E. 180
3. Overall, about how many students prefer literature (poems, plays, or novels)?
A. 45
B. 90
C. 100
D. 130
E. 180
Graph #2: Membership in School Clubs
4. At Rory’s school, students must join one after-school club. Based on the data in Graph #2, which club attracted about 30% of students?
A. yearbook
B. art
C. drama
D. hiking
E. running
F. science
5. Approximately What percent of students chose not to join the yearbook club?
A. 15%
B. 30%
C. 75%
D. 85%
E. 90%
6. About what percent of students joined the art club?
A. 30%
B. 25%
C. 20%
D. 15%
E. 5%
Answers
Answer:
1. A
2.150
3.c
4. d
5.im not sure
6. B
Step-by-step explanation:
-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)
Answers
Answer:
Option #4
Step-by-step explanation:
Expand option #4
=-3(1-2x)
=-3 -2x*-3
=-3+6x which is what your original equation was.
help meee- i have no idea what this means
Answers
Answer: 3rd one!!
Step-by-step explanation: Cube root of 64 is 4.
HELP I NEED A O GIVE MY ANSWER SOON
Answers
Answer:
y=4x
Step-by-step explanation:
if you look at the line you'll see it takes 4 x's to = 1 y, every time you go right 1 you go up 4
Answer:
The slope is 4.
Step-by-step explanation:
Step 1:
Slope can also be found by using the formula, Y2-Y1/X2-X1
In this case, our first point is the origin, so x would be 0 and y would be 0. On the second point, our x is -1, and our y is -4.
So, we can make the solution, -4-0/-1-0.
You can simplify this into, -4/-1, and then into 4.
Therefore, the slope is 4.
Step 2:
M is our slope, so in our y=mx equation our m = 4.
If you substitute in the m, you get y=4x.
Answer:
y=4x.
Hope this helped!
plz help me 23 + 34 -34 x 23
Answers
What is the difference of 16 and a number, divided by 2 ?
Answers
Answer:
it is 16 - 1/2n
Step-by-step explanation:
if we considered the number as n
Step by step explanation:
Difference meaning subtracting and we have to subtract 16 by a number (in this case we don’t know what the number is) therefore we can use X. Then we know that whatever answer you get from 16-x, it’s being divided by 2
Part A Can you map shape I onto shape II by a sequence of transformations? If so, give a sequence of transformations that maps shape I onto shape II.
Part B
Complete the sequence of transformations you found in part A, but in a different order. Does this also map shape I onto shape II? What does this mean?
Question 2 Part A
If you reflect any shape across the x-axis and then rotate it 90° clockwise about the origin, do you get the same result as if you reflect it across the y-axis and then rotate it 90° counterclockwise about the origin? What does this mean?
Part B
If you reflect any shape across the x-axis and then rotate it 180° about the origin, do you get the same result that you would if you reflect it across the y-axis and then rotate it 180° about the origin? What does that mean?
Part C
If you reflect any shape across the x-axis and then across the y-axis, do you get the same result that you would if you rotated it 180° about the origin? What does that mean?
Answers
Part C is the answer
mark me brainliest pls
please help me i will give brainliest to first person to anwser.
Answers
First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.