Mathematics Middle School

(x+5)(x+4)(x-2)-(x^2+11x-9)(x+1)+5x^2
Can someone help me to prove that the value of the following expression does not depend on the value of variable x

Answers

Answer 1
(x+5)•(x+4)•(x-2)•(x2+11x-9)•(x+26)
STEP
2
:
Equation at the end of step 2

(((x+5)•(x+4)•(x-2))•(x2+11x-9))•(x+26)
STEP
3
:
Equation at the end of step 3

((x+5)•(x+4)•(x-2)•(x2+11x-9))•(x+26)
STEP
4
:
Trying to factor by splitting the middle term

4.1 Factoring x2+11x-9

The first term is, x2 its coefficient is 1 .
The middle term is, +11x its coefficient is 11 .
The last term, "the constant", is -9

Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9

Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is 11 .

-9 + 1 = -8
-3 + 3 = 0
-1 + 9 = 8

Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored

Equation at the end of step
4
:

(x+5)•(x+4)•(x-2)•(x2+11x-9)•(x+26)
Answer 2

Answer:

(x+5)•(x+4)•(x-2)•(x2+11x-9)•(x+26)

STEP

2

:

Equation at the end of step 2

(((x+5)•(x+4)•(x-2))•(x2+11x-9))•(x+26)

STEP

3

:

Equation at the end of step 3

((x+5)•(x+4)•(x-2)•(x2+11x-9))•(x+26)

STEP

4

:

Trying to factor by splitting the middle term

4.1 Factoring x2+11x-9

The first term is, x2 its coefficient is 1 .

The middle term is, +11x its coefficient is 11 .

The last term, "the constant", is -9

Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9

Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is 11 .

-9 + 1 = -8

-3 + 3 = 0

-1 + 9 = 8

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Equation at the end of step

4

:

(x+5)•(x+4)•(x-2)•(x2+11x-9)•(x+26)

Step-by-step explanation:

Related Questions

im just so confused i get the wrong answer on all of them please someone help me

Answers

Answer:

I think it's a but I might be wrong

it’s either A or C but i would say C

Need help with ALL 3 questions, WILL AWARDS BRAINLY

Answers

Answer:

I can't see the questions properly

Step-by-step explanation:

i do not know the answer but give me some time and ill answer it in 10 min

Find the surface area of the rectangular prism shown below.

Answers

Answer:

684 inch squared

Step-by-step explanation:

Answer:

Is 684

Step-by-step explanation:

Formula: S = 2 × (width × length + length × height + height × width)

S = 2 × (15 × 12 + 12 × 6 + 6 × 15) = 684

Y’all I need help, MATH, please correct answer and how you did it:)

Answers

21 I think I'm not sure tho
1.uhhh I don't wanna explain all of it but basically a straight line is 180 degrees and the parallel lines are important because they are the reason that 5 and 1 are equal, etc.

2. Again, parallel lines play a big role. If it helps, 3 5 and 4 are all equal angles because of the parallel lines

Help please. Seriously. I've posted this question 2 times. I seriously need help on this, guys.

Answers

Answer:

20s=m

Step-by-step explanation:

I really don't understand it that well but all that I can is that s can represent students that went on the trip, and each student's ticket cost is 20$, so 20*s=20s, but we are taking m as the total money collected, so we can end up saying that 20s=m, hope u understood :)

Answer:

s= students m= money ($20)     equation_  s*m=  total

Step-by-step explanation:

I'm not entirely sure on specifics, such as how man students. so, I can't pinpoint an exact total. I hope this helps though

Which expressions are equivalent to 2(2x + 4y + x − 2y)?

A) 2(x + 6y) and 2x + 12y
B)2(x + 2y) and 2x + 4y
C)2(3x + 2y) and 6x + 4y
D)2(3x + 6y) and 6x + 12y

Answers

Answer:

B

Step-by-step explanation:

2(x+2y)=2x+4y

2x+4y

So option B is the correct answer

Answer:

[tex]2(3x + 2y)[/tex]

ANSER is c

A container is 80​% filled with liquid. The container holds 1,180 gallons of liquid. How many gallons of liquid are needed to fill the container to the​ top?

Answers

Answer:

b

this is the correct answer

236 because 80 of it is 944

what is the value of t?

Answers

Answer:

Hello! answer: t = 50

Step-by-step explanation:

the angle next to 40 will form a complementary angle so... 90 - 40 = 50 sense that forms a vertical angle t would = 50 hope that helps!

the red square shows they make a right angle which is 90. so 90-40= 50. so therefore, t would be 50!

Write the following number in standard form.

Eight million, thirty-six thousand, five hundred four and twenty-one hundredths

Answers

Answer:

8,036,504.21

Step-by-step explanation:

One way to convert a number from word form to standard form is by using a place value chart.

EIGHT MILLION, THIRTY-SIX THOUSAND, FIVE HUNDRED FOUR AND TWENTY ONE HUNDREDTHS.

8,036,504.21
Let me know if you need more of an explanation

The set designers of a school play need to determine the cost of the gold paper they’ll need to create stars in the shape of the shaded region in the figure below.

The gold paper is being sold at Michaels for $2.45 per square centimeter.


The set designers have a $6,000 budget to make these stars. Do they have enough money to make 50 stars?

Answers

Answer: Yes, they do.

Step-by-step explanation: You have to calculate the area of the star; you do this by calculating the area of the square and subtracting the area of the unshaded parts, which is a quarter of a circle.

Therefore,

15^2 - pi * 7.5^2 = 48.28541324 cm squared

Multiply this answer by $2.45 for one star:

Equals $118.2992624

Multiply by 50,

Equals $5,914.96

Since this is less than $6,000 they have enough money to make 50 stars

Yes they do have enough

YALL I NEED HELP WITH MATH HERES THE FIRST QUESTION

x + 6 - 3x - 8

Answers

Answer:

-2x-2

Step-by-step explanation:

x+6-3x-8

x-3x+6-8

-2x+6-8

-2x-2

Answer: - 2x - 2

Step-by-step explanation: Collect the terms -2x then factor the expression -2 which is -2(x + 1) which equals - 2x - 2.

Can you help me with these too?
its for a geometry final practice
plisss

Answers

Answer:

C)

Step-by-step explanation:

3 and 4 together have 180

I need help with this question

Can someone help me?

Answers

Answer:

I think it might be 6

Step-by-step explanation:

You should probably wait for another answer, I did this in Math last year so I think it's 6 but I can't really remember sorry ):

Answer:

Suppplementary angle is 5 or A

SORRY again but can someone pliss help me with?
i got the answer wrong
no links

Answers

Answer:

4 and 1

or

A and D

Angle one and angle four!

A bakery uses 2 ½ pounds of cookies to prepare every 2 packages of cookies. How many pounds of cookies will be used to prepare each package of cookies? 51 ¼4 ½

Answers

Answer:

well if 2 packages of cookies is 2.5 pounds. then one pack of cookies is 1.25.

here is the answer is did

Someone help me plzzz

Answers

It would be 6 cubic ft

1/2(2x - 1) = -1/5 -3/5 find x

Answers

Answer:

x = -3/10

Step-by-step explanation:

1/2(2x - 1) = -1/5 -3/5

Combine like terms

1/2(2x - 1) = -4/5

Multiply each side by 2

2* 1/2(2x - 1) = -4/5*2

2x-1 = -8/5

Add 1 to each side

2x-1+1 = -8/5 +1

2x = -8/5+5/5

2x = -3/5

Divide by 2

2x/2 = -3/5 * 1/2

x = -3/10

y-intercept:
(
0
,
−
1
)
(
0
,
-
1
)
x
y
0
−
1
2
0

PLEASE HELP ASAP!! The mean temperature amongst several major cities on the east coast on a particular day was 68 degrees with a standard deviation of 7.5. If New York City's z-score was -0.8, what was the temperature that day?

Answers

Answer:

69

Step-by-step explanation:

69

69 is the answer.....

Natalie goes to the mall with $270. She buys shoes for $65.95, pants for $32.63 and some shirts for $14.85. What is the maximum number of shirts she can buy?
2 step Inequalities^^

Answers

65.95 + 32.63 = 98.58
270 - 98.58 = 171.42
171.42 divided by 14.85 = 11.54
(round down) natalie can get 11 shirts

Answer:

270 - 65.95 - 32.63 = 171.42

171.42 ÷ 14.85 = 11

I belive the answer is 11

The Read and Feed restaurant wants to know how satisfied their customers are with their service. They printed an internet link to a survey on every receipt, and 150150150 of their customers chose to answer the survey. The data showed that 60 percent of the customers were satisfied with their service.

Answers

Answer:

a

Step-by-step explanation:

because it rite

Answer: a

Step-by-step explanation:

Which equation best represents the relationship between x and y in the table below? pls help ​

Answers

Answer:

c

Step-by-step explanation:

just took the test

brainliest if you are correct

Answers

Answer: x= -7 or x = 6

Step-by-step explanation:

Please give brainliest and A heart with 5/5 stars ;)

Answer:

Option 1: x = -7 or x = 6

Step-by-step explanation:

Helppp ya boyyyyyy!!!!!!!!!

Answers

Answer:

866.64

Step-by-step explanation:

40/2 = 20

A = πr²

3.14*20² = 1256

52/2 = 26

3.14*26² = 2122.64

2122.64 - 1256 = 866.64

The answer is definitely 866.84

Joseph borrows 100000 from his sister Katie at an annual interest of 10%. If the interest is compounded twice a year, how much does he owe after 12 months?

Answers

After 12 months it will be 328.7
After 12 months it will be 328.7

A garden is in the shape of a semicircle with a radius of 25 feet. Fencing is placed around this garden. How much fencing, in feet, is needed to go around this garden? Give me the most accurate answer and SHOW ALL YOUR WORK.

Answers

Answer: the fencing need to be 125 feet
Solution:
Radius(r)=25 ft
Perimeter(P)=?

We have,
Perimeter of a semi-circle(P)= πr+2r
=(22/7)*25+2*25[Since, π is approxiamately equals to 22/7]
=22*25/7 +50
=600/7
=85.714 ft

Since the fencing is done around the semi-circular garden, the length of fencing=perimeter of the garden.

Therefore, 85.714 ft of fencing is required to go around the garden.

Pls give thanks!
Thank you!

There are 24 pupils split into classes in the ratio 1:2. How many pupils are in each class?

Answers

There are 12 pupils in each class

Answer:

12

Step-by-step explanation:

because 24 divided by 2 is 12

What's 2√5 + 3√125 step by step pls.
thanks

Answers

Answer:

Step-by-step explanation:

2[tex]\sqrt{5[/tex] + 3[tex]\sqrt{125[/tex]

=2[tex]\sqrt{5[/tex] +3[tex]\sqrt{5*5*5[/tex]

=2[tex]\sqrt{5[/tex] +5*3[tex]\sqrt{5[/tex]

=2[tex]\sqrt{5[/tex] +15[tex]\sqrt{5[/tex]

=(2+15)[tex]\sqrt{5[/tex]

=17[tex]\sqrt{5[/tex]

I’m not sure, but try this.

Okay so I was absent and missed the day we took notes on this stuff, my teacher isnt the best and wont give me the notes, so if yall know ANYthing please comment it and answer it!

Answers

I can’t help you with this but I recommend speaking with the teacher or asking a friend for the notes. I’m sorry if I fully didnt help you. It’s just that I’m in a diff class than you.. best of luck :)

I hope you are having a good day

alex tried to find the lateral area of the pyramid. FIND HIS ERROR AND CORRECT IT.
plz help i wil give brainlist and points

Answers

Answer:

His error is multiplying by 4 sides as he thought it was total surface not lateral surface area- the final answer is 12

Step-by-step explanation:

He should have multiplied it by 3, because the 3 sides- not including the base- is what lateral surface area is. He originally did total surface area not lateral surface area so each sides area is 4m squared then you just multiply it by 3 and its 12

Error is that he is multiplying both sides

SHOW WORK dont just give me the answers people only giving me the answers and not the work give me the work and the answerS

Answers

Answer:

1) 128/225

2)1  7/60

Step-by-step explanation:

1)

(3/5+1/9)x4/5

32/45x4/5

128/225

2)

2/3+1/5+1/4

13/15+1/4

1  7/60

1. Answer:

128/225

Step-by-step explanation:

Find the lest common denominator for 3/5 + 1/9 which is 45. 3/5 times 9, 1/9 times 5. So, then you have 27/45 + 5/45 = 32/45. So, then you do 32/45 times 4/5. 45 times 5 is 225. 32 times 4 is 128.

2. Answer:

1 7/60

Step-by-step explanation:

LCD for 3,5,4=60. 3 times 20 = 60. 5 times 12 equals 60. 4 times 15 equals 60.

So, then do 2 times 20 equals 40. 1 times 12 equals 12. 1 times 15 equals 15.

[tex]\frac{40}{60}+\frac{12}{60}+\frac{15}{60}[/tex] = [tex]\frac{67}{60} = 1 \frac{7}{60}[/tex]

Hope this helps!

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