12) which of the following is factor of the polynomial x^4+x^3-x^2+x-1
x+1
x-1
Both options 1 and 2
None
please answer friends
Answers
Answer:
none
Step-by-step explanation:
If (x + h) is a factor of f(x) then f(- h) = 0
Given
f(x) = [tex]x^{4}[/tex] + x³ - x² + x - 1
If (x + 1) is a factor then f(- 1) = 0
f(- 1) = [tex](-1)^{4}[/tex] + (- 1)³ - (- 1)² + (- 1) - 1 = 1 - 1 - 1 - 1 - 1 = - 3 ≠ 0
Thus (x + 1) is not a factor
If (x - 1) is a factor then f(1) = 0
f(1) = [tex]1^{4}[/tex] + 1³ - 1² + 1 - 1 = 1 + 1 - 1 + 1 - 1 = 1 ≠ 0
Thus (x - 1) is not a factor
Related Questions
Simplify (-56) ÷ 7.
A. 9
B. -9
C. 8
D. -8
Answers
4 out of 5 dentists prefer Crest. If they asked 30 dentists what tooth paste they prefer, how many did NOT PREFER Crest.
Answers
Answer:
24 would prefer CREST
6 woul NOT prefer Crest
Step-by-step explanation:
4:5=x:30
What is the unit rate for each size of peanut butter?
Regular: $ ____ per ounce
Family Size: $ _____ per ounce.
Which one is a better buy (claim)?
How do you know (reasoning)?
Answers
Answer:
It would be better to buy the regular size
Step-by-step explanation:
For regular size You would divide
16/3.36 = 4.7619
For family size you would divide
40/7.60 = 5.2631
As you can see with the regular size you would pay about $4.75 cents for every ounce but if you buy the family size then you would be paying about $5.26 for every ounce
how to turn a fraction into a decimal, help
Answers
A fraction is really just another way to write a division problem without dividing. So all you have to do is divide, then round to whichever decimal place your teacher wants.
Complete the steps to find the value of x.
Answers
Answer:
Step-by-step explanation:
72+7x+24=180
7x+96=180
7x=84
x=12
What is the solution to this equation?
X-15
5
O A. x=3
O B. x = 10
O C. x= 20
O D. x = 75
Answers
x - 15
20 - 15
5
Draw the solution for 4(2+10) when using the distributive
property.
Answers
identify the constant rate of change
Answers
Yoko is putting money into a savings account. She starts with $350 in the savings account, and each week she adds $40.
Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Yoko has been adding money. Write an
equation relating S to W. Then use this equation to find the total amount of money in the savings account after 18 weeks.
Answers
Answer:
s=40w+350; s=$1,070
Step-by-step explanation:
Our equation looks like this:
s=40w+350
Next we plug in 18 for w, our number of weeks.
s=40(18)+350
Multiply the 40 and 18.
s=720+350
Add the 350 and 720.
s=1,070
Add a dollar sign to say that the amount is in dollars.
s=$1,070
HTH :)
The equation relating the total amount of money in the savings account, S and the number of weeks Yoko has been adding the money, W is given by S = 350 + 40W.
Total amount of money in the savings account after 18 weeks is
What is an Equation?An equation is a statement in mathematics which includes two algebraic expressions or numbers relating with an equal sign.
There are left hand side and right hand side for every equation and may or may not include variables.
S is the total amount of money in the savings account of Yoko.
W is the number of weeks Yoko has been adding money.
Initial money = 350
After 1 week total money = 350 + (1 × 40)
After 2 weeks, total money = 350 + (2 × 40)
It goes on like this until the last week.
So after W weeks total money = 350 + (W × 40)
Total amount of money in the savings account after W weeks, S = 350 + 40W.
After 18 weeks, S = 350 = (40 × 18) = $1070
Hence the equation relating W and S is, S = 350 + 40W.
Total amount of money after 18 weeks = $1070
To learn more on Equations, click:
https://brainly.com/question/29657992
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Help me please......
Answers
Answer:
Approx. 73°
Step-by-step explanation:
roast me!!!!!!!!!!!11
Answers
Answer:
bread
Step-by-step explanation:
cuz why not
haha stinky hahaha hahahahha
I give Brainliest!
Determine whether the following statements are sometimes, always or never true.
Equilateral triangles are also right triangles.
All angles of an equilateral triangle are congruent.
Answers
Answer: Equilateral triangles are also right triangles sometimes. All angles of an equilateral are congruet sometimes.
Andre and Elena are solving this system of equations.
Y=3x
Y=9x-30
Andre’s first step is to create a new system:
3y=9x
Y=9x-30
Do you agree with either first step?
A-both strategies work
B-only the first strategy works
C-only the second strategy works
D-neither strategies work.
Answers
Answer:
A-both works
Step-by-step explanation:
one can simply sub into the second equation from the first step's one and remove an unknown, making it easy to solve
due in 5 minutes
Who would have first made this statement while observing cork under a microscope?
"The cork looks like little rooms, or cells.”
A Hooke
B Schleiden
C Leeuwenhoek
D Virchow
Answers
Answer:
Hooke
Hope This Helps!
Answer:
Hooke
Step-by-step explanation:
pls dont get mad if im wrong im just here to help :)
Please help Look at image
I’m struggling
Answers
Answer: m is — 1
Step-by-step explanation:
Explanation is in the attached image
2 (4x-2)- 5x=-18
HELP!!
Answers
Answer:
x = -14/3
Step-by-step explanation:
2 (4x-2) - 5x = -18
8x - 4 - 5x = -18
8x - 5x = -18 + 4
3x = -14
x = -14/3
I'm not sure if this is what you were asking for but, ya..
4. What is the factored form of the expression 49x2 + 20?
A (7x + 215)(7x - 2/5)
B (7x + 2iV5) (7x - 2i75)
C (7xi + 275) (7xi - 215)
D (7xi +2175) (7xi - 2175
Answers
The factored form of the expression would be; (7x + 2√5) (7x - 2√5)
What are equivalent expressions?Those expressions that might look different but their simplified forms are the same expressions are called equivalent expressions.
To derive equivalent expressions of some expressions, we can either make it look more complex or simple. Usually, we simplify it.
We need to factor the expression form 49x² + 20
Therefore, 49 is a perfect square,
This expression could also be given as;
(7x)²- (2√5)²
Now, we know that:
a²- b² = (a + b) (a - b)
Now plug the values then we have:
(7x)²- (2√5)² = (7x + 2√5) (7x - 2√5)
Hence, the factored form of the expression would be; (7x + 2√5) (7x - 2√5)
Learn more about expression here;
brainly.com/question/14083225
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The factored form of the expression 49x² + 20 will be (7x - 2i√5) and (7x + 2i√5). Then the correct option is B.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.
The expression is given below.
⇒ 49x² + 20
The expression can be written as,
⇒ 49x² - 20i²
Simplify the expression, then we have
⇒ 49x² - 20i²
⇒ (7x)² - (2i√5)²
⇒ (7x - 2i√5)(7x + 2i√5)
The factored form of the expression 49x² + 20 will be (7x - 2i√5) and (7x + 2i√5). Then the correct option is B.
More about the Algebra link is given below.
https://brainly.com/question/953809
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Tell whether the lines through the given points are parallel, perpendicular or neither. You must have a work that supports your answer
Answers
identify the TWO sets of ordered pairs that represent a function
A).(1,-1),(-2,-7),(0,1),(-1,-1)
B).(1,-3),(-2,-8),(0,-1),(1,-2)
C).(2,-3),(-3,6),(-2,-2),(2,3)
D).(-3,2),(1,6),(2,2),(1,3)
E).(-5,2),(2,6),(3,2),(4,-5)
Answers
Answer:
A and E
Step-by-step explanation:
(1, −1), (−2, −7), (0, 1), (−1, −1) and (−5, 2), (2, 6), (3, 2), (4, −5) are functions because each x value corresponds to exactly one y value. a function must have only one output value for each input value.
You are checking in a customer’s bag for a flight out of the country. There is a 50-pound weight limit per bag. The customer’s bag weighs 47 pounds. The country the customer is flying to needs the weight of the bag in kilograms to determine compliance.
Answers
Answer:
21.3188kg or 21.3kg
Step-by-step explanation:
As one kilogram is equal to 2.20462 pounds we can calculate the weight in kilograms by taking 2.20462 / 47 and we get 21.3188kg
WILL GIVE BRAINLIEST!! NEED ANSWERS!!
1. -12x = -6
2. -15x=5
3. X+4= -13
4. -x+6= -3
5. -2x+4 = -10
6. -18x-2= 6
7. 20x-4= -2
8. 2(4x-2) = -2
9. -2 ( 3x+4) = -2
10. - (x+3) = -10
Answers
1. x=-6+12 = 6
2. x=5+15 = 20
3.x =-13-4= -17
4. -x= -3-6 = -9
x=9
5. 2x = -10-4
2x = -14
x =-14/2 =-7
6. -18x=6+2
-18x =8
x=8+18 = 26
7. 20x =-2+4
20x =2
x=2/20 =1/10
8. 8x -4 =-2
8x = -2+4
8x =2
x =2/8 = 1/4
9. -6x - 8 =-2
-6x = -2+8
-6X = 6
X = 6/-6 = 1/-1
10. -X - 3 =-10
-X = -10 +3
-x = -7
x = 7
In the equation 9x2 - 4 = (px - t)(px + t), p and t are constants. What is the value of p + t?
Answers
Answer: 2
Step-by-step explanation:
How much money must be deposited to earn $219 in simple interest in 8 years at an annual rate of 6.2%?
Answers
Answer: $1,147.20.
Step-by-step explanation:
The total amount accrued for principal plus interest in the calculation simple interest
= principal * (1+ rate * number of years)
= $800 *(1+ 6.2% * 7)
= $1,147.20.
Hopefully his helped, if not HMU and I will try my best to get u a better answer! :)
What fraction is 20 min of 3 hours? Answer in simplest form
Answers
Answer:
1/9
Step-by-step explanation:
The cheerleading squad sold 480 spirit ribbons, collecting a total of $360.00. What was the cost of each ribbon?
Answers
Answer:
1.33
Step-by-step explanation:
480 divided by 360 gets you 1.33
Answer:
Each ribbon costs $0.75.
Step-by-step explanation:
All you need to do solve the problem is divide 360/480 = 0.75.
To check your answer, multiply 0.75 by the number of ribbons sold:
0.75 x 480 = 360
I hope this helped! If it did, please consider rating my answer and pressing thanks. Have a fantastic day!
Charlie wants to order lunch for his friends. He'll order 6 sandwiches and a $3 kid's meal for his little brother. Charlie has $27. How much can he spend on each sandwich if they are all the same price?
Answers
Answer:
$4
Step-by-step explanation:
27 - 3 = 24
24 ÷ 6 = 4
have a goodnight! :)
Answer:
a) Answer: $4 or less
b) Inequality: 6x + 3 ≤ 27
Step-by-step explanation: took the quiz and got it right!
Last one I need help on, I'm in 4th and on my sisters account she's at school, I will give brainliest if it's correct
Answers
2 1/4 x 1 1/3 = 9/4 x 4/3 = 3/1 x 1/1 = 3/1 or 3
Key: Keep, change, flip
Answer:
2 4/12 or if simplified 2 1/3
Step-by-step explanation:
non examples of absolute value
Answers
Answer:
A non-example of absolute value is -3 = -3
( use elimination) on 3x+5y=12 and x-3y=4
Answers
Answer:
x=4 y=0
Step-by-step explanation:
3x+5y=12
-(x-3y=4)
3x+5y=12
3(-x+3y=-4)
3x+5y=12
-3x+9y=-12
14y=0
y=0
Then, substitute the y into the equation to find x
x-3(0)=4
x=4
The price of n tickets to a concert is is 9n + 6 dollars. What is the cost, in dollars, for 8 tickets to the play?
The cost for 8 tickets to the play is
Answers
Answer:
78
Step-by-step explanation:
do 9 x 8= 72
then 72 + 6= 78
