Answers
Given:
The equation is
[tex]-4x^4+36x^3-80x^2=0[/tex]
To find:
The value of x.
Solution:
We have,
[tex]-4x^4+36x^3-80x^2=0[/tex]
It can be written as
[tex]-4x^2(x^2-9x+20)=0[/tex]
Splitting the middle term, we get
[tex]-4x^2(x^2-5x-4x+20)=0[/tex]
[tex]-4x^2(x(x-5)-4(x-5))=0[/tex]
[tex]-4x^2(x-5)(x-4)=0[/tex]
Using zero product property, we get
[tex]x^2=0,x-5=0,x-4=0[/tex]
[tex]x=0,x=5,x=4[/tex]
Therefore, the values of x are 0, 4 and 5.
Related Questions
A group of 3 friends shared 7 bars of clay equally. How much clay did each student get?
What equation could you write to match this story?
How much clay would each friend get?
Answers
Answer: 2 1/3
Step-by-step explanation:
Hi, I got my answer by making 3 groups and splitting 7 into them. When you get 1 left over, you separate it into 3, so everyone gets 1/3 of a piece. Therefore the answer is 2 1/3. :)
60 points! Mhanifa please help I don’t want people to continue putting random answers!! Random answers will be reported!!
Answers
Answer:
yes the is enough imformation because of the tick marks
Step-by-step explanation:
Triangle 1. Angle-Side-Angle (ASA) Congruence
Triangle 2. Side-Angle-Side (SAS) Congruence
Triangle 3. Angle-Side-Angle (ASA) Congruence / Side-Angle-Side (SAS) Congruence
Whats is -1/2 +(3/4 x 4/9) =?
Answers
Answer:
-0.1666666666
Step-by-step explanation:
-0.1666666666
The circle below is centered at the origin and has a radius of 10. What is its equation?
Answers
Answer:
x²+y² = 100
Step-by-step explanation:
Equation for circle of radius r that is centered at (h,k):
(x-h)² + (y-k)² = r²
In your case, h=k=0 and r=10.
x²+y² = 100
What is 3.6 = 2.4x step by step please
Answers
Answer:
x = 1.5
Step-by-step explanation:
3.6 = 2.4x
divide by 2.4 on both sides
you get 1.5
x = 1.5
Check it if u want
Answer:
x=1 1/2
Step-by-step explanation:
3.6 / 2.4 = x
Convert by factor:
3.6 = 1.2x3
2.4 = 1.2x2
3/2 = x
x = 1 1/2
SOMEONE PLEASE HELP ME ASAP THIS IS ALMOST DUE ILL MARK BRAINLIEST!!!!
Answers
Answer:
9
Step-by-step explanation:
THE ANSWER Is 9
Answer:
The missing side is 9
Step-by-step explanation:
Th use of the pythagorean thereom
41^2=1681
40^2=1600
1681-1600=81
81 radical thingy = 9
2+3(6 - 7 ) 5 - 2 ( 9 + 4 ) =
Answers
Answer: -39
Step-by-step explanation:
2+3• 5-2•13=
2+15-26=
17-26=
-9
How do i do this 5th grade math ?
Answers
Answer:
2 and 4
Step-by-step explanation:
someone please help me on this problem
Answers
Answer:
i think they are both correct
PLEASE ANSWER ASAP!!! WILL GIVE BRAINLIEST IF CORRECT!
A math class is having a discussion on how to determine if the expressions 4 x minus x + 5 and 8 minus 3 x minus 3 are equivalent using substitution. The class has suggested four different methods.
Which describes the correct method?
1. Both expressions should be evaluated with one value. If the final values of the expressions are both positive, then the two expressions must be equivalent.
2. Both expressions should be evaluated with one value. If the final values of the expressions are the same, then the two expressions must be equivalent.
3. Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are positive, then the two expressions must be equivalent.
4. Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are the same, then the two expressions must be equivalent.
Answers
Answer:
Option 4 is the correct answer
Step-by-step explanation:
4. Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are the same, then the two expressions must be equivalent.
10. Is it possible for the cylinder to have a cross section in the shape of a rectangle?
a) Yes
b) No. Explain.
Answers
Answer: yes
Step-by-step explanation:
Answer:
I looked it up. And I believe so. "The vertical cross-section of a cylinder is a rectangle, and the horizontal cross-section is a circle."
subtract the sum of 38 and - 49 from - 100
Answers
Answer:
38 + (-49) = -11
Step-by-step explanation:
-100 - (-11) = -89
what is the slope of the line?
Answers
7-9/10-11 -2/-2
The slope is 1
What is 7x^2-7x-42 in factored form
Answers
Answer:
7(x−3)(x+2)
Step-by-step explanation:
What is the value of 4 to the power of 0?
Answers
Answer:
The value to 4 to the power of 0 is 4.
Step-by-step explanation:
Since it is to the power to 0, it would be 4^0. This shows that 4 is not being multiplied to anything.
23 and 24 are complementary angles.
m_4 = 49
What is the measure of Z3?
Help !!
Answers
Answer:
complementary angles add up to 90º everything else you said needs rephrasing or maybe a picture along with it
Step-by-step explanation:
i need help plzzzzzzzzzzzzzz
Answers
Bailey saves money at the end of each month. The function f(x) = 10x + 50 models the total amount he has saved after 'x' months. What is the domain of the function?
A) (50, 60, 70, ....)
B) (60, 70, 80, ...)
C) All positive real numbers
D) all non-negative integers
Answers
Answer:
D) all non-negative integersStep-by-step explanation:
The function f(x) = 10x + 50 models the total amount he has saved after 'x' months.
The domain is x-values, which is the number of the months.
x can only be zero or positive integers (since you can save after the month is complete), therefore the last option is correct.
PLEASE HELP AGAIN I NEED THIS EVEN QUICKER
Answers
Answer:
9.5ft is the answer
Answer:
9.5 ft.
Step-by-step explanation:
If 0 < f ≤ 90 and cos(22f − 1) = sin(7f + 4), what is the value of f?
A. f=3
B. f=4
C. f=5
D. f=6
Answers
Answer:
f = 3
Step-by-step explanation:
Given the equation cos(22f − 1) = sin(7f + 4), the following steps must be followed in order to get the value of f;
From the trigonometry identity, sin(90-theta) = cos theta.
cos(22f-1) = sin (90-(22f-1))
cos(22f-1) = sin (90-22f+1)
cos(22f-1) = sin (91-22f)... 3
substituting eqn 3 into the original equation given, we will have;
sin (91-22f) = sin(7f + 4)
91-22f = 7f+4
7f+22f = 91-4
29f = 87
f = 87/29
f = 3
kevin is trying to find the height of a tree. he stands 100ft away from the tree and records the angle of elevation to the top of the tree to be 26. Kevins height is 6ft. how tall is the tree?
Answers
Answer:
HERES YOUR ASSIGNMENT! I EDITED IT ON MICROSOFT SO THAT I CAN SCREENSHOT IT AND SEND IT TO YOU...I HOPE IT HELPS :)
ARIGATO OZAIMASU!!!c/9 < -4
Solve the Inequality
Answers
Answer:
The solution of the given inequality c < - 36
Step-by-step explanation:
Explanation:-
Given inequality
[tex]\frac{c}{9} < -4[/tex]
Multiply '9' on both sides, we get
[tex]9 X \frac{c}{9} < -4 X 9[/tex]
⇒ c < - 36
The solution of the given inequality c < - 36
A movie theater charges $8.50 for an adult ticket to an evening showing of a popular movie. To help the local animal shelter, the theater management has agreed to reduce the price of each adult ticket by $0.50 for every can of pet food a customer contributes to a collection barrel in the theater lobby. Which of the following shows both an equation in which y represents the cost of an adult ticket in dollars for a customer who contributes x cans of pet food, and the graph of the cost if a customer brings in 2, 5, 8, or 10 cans of pet food?
Answers
Answer: What’s the answer ?
Step-by-step explanation:
Lacy is shoveling driveways. She has shoveled 9 driveways out of a total of 12 driveways. What percent of the driveways does Lacy still have to shovel?
Answers
Answer:
75%
Step-by-step explanation:
1. solve 9/12=.75
2. multiply by 100 to get the percentage
could someone please help me with this question
(9^7)^2
Answers
(9^7)^2
= 9^(7×2) because (a^x)^y = a^(xy)
= 9^14
Which statement is true about the angles in triangle PQR?
Answers
عربيععربيعربيع ربيعربيعربيعربعربيععربيعربيع ربيعربيعربيعرب 5htrhtrweg
(C) The sum of the measures of ∠P, ∠Q, and ∠R is 180°
Step-by-step explanation:
All triangles, when their three angles are added up, gets us 180°.
This goes without saying, even with scalene triangles.
Additionally, the angles in squares add up to 360°, the angles in a pentagon add up to 540°.
Hope this helped!
3/17 as a percentage
Answers
Answer:
3/17×100= approximately 17.6
Step-by-step explanation:
if you have 1,2,4,5,10.20,25,50, you'll multiply both sides by a number that this number when you multiply it by the denominator it will be 100
if any other numbers you can multiply immediately by 100
Bonus Problem. A shop owner has 75 pounds of coffee that costs $4.50 per pound. How much coffee that costs $3.50 per pound should he mix with this coffee to sell the mix at the price $4.00 per pound?
Answers
Answer:
75 pounds
Step-by-step explanation:
75 pounds
Answer:
75 pounds
Step-by-step explanation:
THE CORRECT ANSWER IS 75 POUNDS!!!!!
A clothing store is having a sale where all shirts are 40% off and all the pairs of pants are 30% off. Which of these are true? Choose the TWO correct answers. A) jerry wants to buy one pair of pants originally priced at &40$ and a shirt is originally priced at $45. He will pay a total sale price of $55. B) Mary buys two shirts originally priced at $25. She will pay a total sale price of $35. C) Michael buys a pack of four shirts on sale of $37.80. The pack of shirts was originally priced at $54. D) Chantal buys a pair of pants for sale price of $40.60. The pair of pants was originally priced at $58.
Answers
Answer:
Step-by-step explanation:
A. "a pair of pants originally priced at &40$ and a shirt originally priced at $45. He pays $55"—correct
(1-0.30)$40 + (1-0.40)$45 = $55
B. "Mary buys two shirts originally priced at $25. She will pay $35."—incorrect
2×(1-0.40)$25 = $30
C. "a pack of four shirts on sale for $37.80. The pack of shirts was originally priced at $54"—incorrect
(1-0.40)$54 = $32.40
D. "a pair of pants for sale price of $40.60. The pair of pants was originally priced at $58."—correct
(1-0.30)$58 = $40.60
system of measure that added prefixes to change the unit’s equivalence??
Answers
Answer:
The metric system is an alternative system of measurement used in most countries, as well as in the United States. The metric system is based on joining one of a series of prefixes, including kilo-, hecto-, deka-, deci-, centi-, and milli-, with a base unit of measurement, such as meter, liter, or gram.