How many complex roots does the polynomial equation below have? x7 - 3x5 + 4x2 - 1 = 0
Answers
Answer:
4 complex rootsStep-by-step explanation:
The easiest way is to use a graphing tool and solve it graphically.
We did it with Desmos and it shows 3 real roots, see below.
The polynomial is of degree 7, hence it should have 7 roots.
Since there are 3 real roots, the remaining ones are complex, so there are 4 complex roots
Answer:
4 complex roots
Step-by-step explanation:
Related Questions
A student's bank account is represented in the table shown.
1. Create a linear regression equation that can be used to model the amount of money in the account (the balance), y, based on the time (in weeks), x. Round all values to the nearest hundredth.
2. What is the slope of your linear regression equation? What does it mean in the context of the situation (time and $).
3. Use the model to approximate the amount in the account after 15 weeks. Round to the nearest hundredth.
4. Use the model to approximate how long it would take to have $50.00 in the account.
Answers
The desmos link is in the reply section below...
1.) y = 1.56x + 1.29
2.) the slope is 1.56
As the weeks are increasing, the student's balance is growing about 1.56 per week.
3.) y = 24.69
4.) 50 = 1.56x + 1.29
50 - 1.29 = 1.56x + 1.29 - 1.29
48.71 =1.56x
48.71 / 1.56
31.2
H(x)=(x+5)^2 if we solve h(x)=36
One of the possible values of x is 1
What is the other possible value of x?
Answers
Answer:
x = - 11
Step-by-step explanation:
Solving
(x + 5)² = 36 ( take square root of both sides )
x + 5 = ± [tex]\sqrt{36}[/tex] = ± 6 ( subtract 5 from both sides )
x = - 5 ± 6
Then
x = - 5 + 6 = 1
x = - 5 - 6 = - 11
The other solution is x = - 11
George and Marylin were both given the following example to complete on their
exam:
(152 +122-24x)
3.x
Below is each of their answers:
George
Marylin
(15x' +12° -24x)
3.x
(158° +12r -24x)
Зr
5r? +4x-8
5x +4x? - 8x
Which student is correct?
Explain the mistake that the other student made (Be detailed in your answer)
Answers
Answer:
this is not my level of math sorry i cant help you :(
Step-by-step explanation:
sorry
I need this answer
ASAP!
Remainder of 52,259 divided by 215
Answers
Answer:
14
Step-by-step explanation:
52,259 divided by 215 is 243.065116279
so we know that the nearest whole number is 243.
243x215 is 52,245
subtract 52,245 from 52,259 which gives you the remainder of 14
Which is the last step when creating and analyzing a scatterplot from a table of values?
Plot the ordered pairs of the independent variable and the dependent variable on the coordinate plane.
Draw or obtain a blank coordinate plane.
Identify if there is a relationship between the independent and dependent variables.
Label the axes of the coordinate plane according to the input and output variables.
Answers
Answer:
A quadratic equation. ax2 +bx+c=0 has exactly one real solution if ∆=b2-4ac=0. We check the answers. In (A) ∆=1 ; in (B) ∆ =25: in (C) ∆=0; in (D)∆=1 . (C) is the correct answer.
Answer:
C. Identify if there is a relationship between the independent and dependent variables.
Step-by-step explanation:
in baseball the home plate is shaped like the one shown it has three right angles and two other congruent angles A and B find measurement of angle a and measurement of angle B
Answers
Answer:
135
Step-by-step explanation:
the triangle is 90-45-45
the square is 90-90-90-90
where the two meet just add 45 + 90
135
How do we get 144 here?
Answers
Answer:
the correct answer is supposed to be 120, your almost there :)
Step-by-step explanation:
Solve for HL hypotenuse leg theorem
-GEOMETRY
Answers
[tex]\huge \bf༆ Answer ༄[/tex]
The Additional information needed to prove the Triangles congruent by HL criteria is ~ D
[tex] \sf ST \cong SE \: \: or \: \: US \cong FS[/tex]ST = SE or US = FS
===========================================
Explanation:
As you mentioned, HL stands for hypotenuse leg. The sides EF and UT marked with triple tickmarks are congruent, and they are the congruent hypotenuses. That takes care of the "H" part of "HL". So we can cross off choice C because it mentions TU = EF, which is already taken care of.
The "L" part can involve either leg of the triangles. So we could involve the legs ST and SE (they appear to be the shorter legs), or we could involve the longer legs US and FS. We only need to pick one of those options to handle the "L" portion. If we knew all three aspects, then we could easily refer to the SSS (side side side) congruence theorem.
The HL theorem only applies to right triangles.
what is 57/100- 3/10
Answers
Answer:
27/100
Step-by-step explanation:
make 3/10 into an equivalent fraction with a denominator of 100
therefore, multiply both 3 and 10 by 10 to get: 30/100
57/100 - 30/100 = 27/100
Hoped this helped
[tex]BrainiacUser1357[/tex]
4 out of the 10 employees at the sports shop are part-time employees. What percentage of the employees at the sports shop work part-time?
Write your answer using a percent sign (%).
Answers
Answer:
40%
Step-by-step explanation:
Well, if 4/10 work part time, 4/10 converted to percentages is 40%.
In the past month Melissa went to buy video games and 7 DVD the rental price for each video game was $3.10 the rental price for each DVD was $3.70 what is the total amount that Melissa bent on the video game and the DVD rentals in the past month
Answers
You didn’t specify how much games so let’s go with one, if it’s not 1 I can always change it later!
1 * 3.10 is 3.10 (duh)
7 * 3.70 is 25.90
7
3 7 0
0 0 0 0
— — — — — —
4 9
2 1
— — — — — —
2 5 9 0
Add the decimals in the correct places and you’ll get 25.90.
Now add 25.90 + 3.10 and you shall get your answer, 29!
Melissa spent 29$ for the rentals in the past month.
Thank you and I hope this helped.
Which equation matches the given points? (0, 7.6), (1, 6.2), (2, 4.8), (3, 3.4), (4,2)
Answers
The equation that matches the given points is g(x) = -1.4x + 7.6
The standard form of a linear equation is expressed as [tex]g(x)=mx + b[/tex]
m is the slope of the lineb is the y-intercept:Using the coordinate points (3, 3.4), (4,2)
[tex]m=\frac{2-3.4}{4-3}\\m=\frac{-1.4}{1}\\m=-1.4[/tex]
Substitute m = -1.4 and the coordinate (4, 2) into the formula:
[tex]2=4(-1.4)+b\\2=-5.6+b\\b=2+5.6\\b=7.6[/tex]
Get the required equation:
[tex]g(x)=mx+b\\g(x)=-1.4x+7.6[/tex]
Hence the equation that matches the given points is g(x) = -1.4x + 7.6
Learn more on equation of a line here; https://brainly.com/question/9351428
Molly has biweekly gross earnings of $839. 52. By claiming 1 more withholding allowance, Molly would have $16 more in her take home pay. How many withholding allowances does Molly currently claim? a. 1 b. 2 c. 3 d. 4.
Answers
Molly currently claims 2 withholding allowances which can be determined by using rules of allowance.
Given that,Molly has biweekly gross earnings of $839. 52.
By claiming 1 more withholding allowance,
Molly would have $16 more in her take-home pay.
We have to determine,How many withholding allowances does Molly currently claim?
According to the question,Molly has biweekly gross earnings of $839. 52.
By claiming 1 more withholding allowance,
Molly would have $16 more in her take-home pay.
The withholding allowance is used by a person to pay less amount of tax on his or her income to the government.
Molly has biweekly gross earnings of $839. 52.
By claiming 1 more withholding allowance,
Molly would have $16 more in her take-home pay.
Therefore,
It is given that Molly has taken 1 more withholding allowance to pay tax less by the amount of $16.
So he must have possessed at least 1 allowance previously and added 1 more.
So, the minimum number of allowance possessed by Molly = 2
Hence, Molly currently claims 2 withholding allowances.
For more details about Income Tax refer to the link given below.
https://brainly.com/question/1708567
Classify the following triangle as acute, obtuse, or right.
Answers
D. None of these.
Equilateral is the only triangle that has all the sides that are equal to each other. Hope this helped you :)
Option D . None of these is the correct answer.
There 7 ducklings .they sleep in 1 large nest .write and solve an equation that shows how many ducklings sleep in the nest
Answers
Answer:
7 ÷ 1 = 7
Step-by-step explanation:
Answer:
I think
Step-by-step explanation:
I think you are subtracting
Evaluate and simplify without a calculator:
−35+23
Pleasee helpp
Answers
Answer:
The answer would be -12, I'm not to sure what simplify means
-35 + 23 = -12
Q6 (i) please i don’t know what i’m doing wrong
Answers
x + 5 = 5^2 – x
x + 5 = 25 – x
Then rearrange to make x the subject.
x + 5 = 25 – x
2x + 5 = 25
2x = 20
x = 10
Answer:
x = 4
Step-by-step explanation:
Square both sides
x+5 = 25-10sqrt(x)+x
20 = 10sqrt(x)
sqrt(x) = 2
Square both sides again
x=4
Verify sol
x = 4
Need help doing this
Answers
Answer:
huh I'm confused I dont know
can someone help me :
Answers
Answer:
A: yes
B: yes
C: no
D: no
E: no
Hope This Helps!!!
Answer:
s = -2
s = -8
Step-by-step explanation:
negative numbers get smaller and smaller the farther they are from zero
Which number is an integer? Negative three-fourths 0 2. 3 Pi.
Answers
The number that is an integer is 0.
An integer is a number that does not have fractions or decimals. Examples of integers are 50, - 1. A fraction is a number that is made up of numerators and denominators. An example is 3/4. A decimal is made up of tenths, hundredths and thousandths. An example is 2.3.
Negative three-fourths is not an integer because it is a fraction. 2.3 and pi is not an integer because it is a decimal.
A similar question was answered here: https://brainly.com/question/15984496
Can you help me please ?
Answers
Answer:
A
Step-by-step explanation:rise⇵ over run ⇄
the rise is -6 the run is 3
6.True or False.
A numeral, such as 22 is called a constant.
Answers
Answer:
True
Step-by-step explanation:
The term with no variable attached to it is the constant
Answer:
te voy a devolver el susto me diste 9 veces peor
Step-by-step explanation:
BRAINLIEST 87x89 PLEASE
Answers
Answer:
7743 caught you again lolllll
Hope you find this helpful!
Brainliest and a like is much appreciated!
9 unit percent change is 23, what is the 19th unit percent cahnge?
Answers
Answer:
42.40705%
Step-by-step explanation:
(1 - (23/100)^(19/9) = 1 + r/100
0.57593 = 1 + r/100
r = 42.40705%
Combine the like terms to create an equivalent expression.
\large 9p+3p
Answers
Step-by-step explanation:
there is not much here.
all I can see is
9p + 3p
and that is 12p (as 9+3 = 12)
3480 divided by 29 what is the answer that its asked
Answers
Answer:
120
Step-by-step explanation:
To be honest I just looked it up.
2/10 = 20%= 0.2
True or false
Answers
Answer:
True
Step-by-step explanation:
Find the equation of the axis of symmetry
for this function.
f(x) = 8x2 + 6x + 19
X=?
Answers
But I have the answer for (x-intercept) X= -4/5 (y-intercept) F(0)=16
Use <, >, or = to make the
statement true.
20[?]-1
Answers
Answer:
20 > -1
Step-by-step explanation:
Well 20 is a positive integer that is 20 units from 0 whereas -1 is a negative integer that is 1 unit behind zero.
F(x) = 3x2+ 6x - 18 find f (10)
Answers
Answer:
f(10) = 342
Step-by-step explanation:
f(x) = 3x² + 6x - 18
f(10 = 3(10)² + 6(10) - 18
f(10) = 3(100) + 60 - 18
f(10) = 300 + 60 - 18
f(10) = 360 - 18
f(10) = 342