plese someone answer me b asap

Plese Someone Answer Me B Asap

Answers

Answer 1

Answer:

[tex]\huge\boxed{\sf 9y^2 -22y-24}[/tex]

Step-by-step explanation:

[tex]\sf (3y-1)^2 -(2y+4)^2+(2y-3)(2y+3)\\\\Using \ formula:\\\\1) (a-b)^2 = a^2-2ab+b^2\\\\2) (a+b)^2= a^2+2ab+b^2\\\\3) (a+b)(a-b) = a^2-b^2\\\\Applying \ Formulas\\\\(3y)^2-2(3y)(1)+(1)^2-[(2y)^2+2(2y)(4)+(4)^2]+(2y)^2-(3)^2\\\\9y^2-6y+1-[4y^2+16y+16]+4y^2-9\\\\9y^2-6y+1 -4y^2-16y-16+4y^2-9\\\\Combining \ like \ terms\\\\9y^2-4y^2+4y^2-6y-16y+1-16-9\\\\9y^2 -22y-24\\\\\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807
Answer 2

Answer:

a) [tex]\frac{1}{3}[/tex] k² - 9

b) -7y² - 3

Step-by-step explanation:

a) ([tex]\frac{2}{3}[/tex] k - 6)² - ([tex]\frac{1}{3}[/tex] k + 3)²

  = [tex]\frac{4}{9}[/tex] k² - 36 - [tex]\frac{1}{9}[/tex] k² + 9

  = [tex]\frac{4}{9}[/tex] k² - [tex]\frac{1}{9}[/tex] k² + 9 -36

  = [tex]\frac{3}{9}[/tex] k² - 27

  = [tex]\frac{1}{3}[/tex] k² - 9

____________________________________

b) (3y - 1)² - (2y + 4)² + (2y - 3) (2y + 3)

  = 9y² - 1 - 4y² + 16 + (2y - 3) (2y + 3)

  = 9y² - 4y² - 1 + 16 + (- 3) (4y² + 6y)

  = 5y² + 15 - 12y² - 18

  = 5y² - 12y² + 15 - 18

  = -7y² - 3

Hope this helps!

(NOTE: Do you mind marking me as Brainliest?)


Related Questions

A band is paid $50 for performing at a restaurant. For each customer
that eats at the restaurant, the band is paid $2 more. Evaluate m (100)

Answers

Answer:

If there are 100 customers, the band will be paid $250.

Step-by-step explanation:

50 + 2m

m = 100

50 + 2(100)

50 + 200

= 250

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Kara’s bedroom is in the shape of a rectangle. The perimeter of her room is 50 feet. The width of her room is 12 feet. What is the length of Kara’s room?

A

13 feet


B

25 feet


C

26 feet


D

38 feet

Answers

Answer:

13

Step-by-step explanation:

Ok so we will eliminate some numbers first. The width is 12, but the total on the perimeter is 24. 50-24 = 26

26 is not the length, so divide that by 2, and get 13

Proof:

x=2

13x=26

12x=24

24+26 = 50

(Y-2,2x+1)=(x-1,y+2)

Answers

Answer:

what we have to find in this question


Find the value of x that makes m || n

Answers

Answer:

a) 24

Step-by-step explanation:

To  make m//n,  the sum of co-interior angles (4x + 84) should be 180

4x + 84 = 180

        4x = 180 - 84

        4x = 96

         x = 96/4

        x = 24

LOOK AT THE PICTURE PLEASE HELP

WILL MARK BRAINLIEST

Answers

Answer:

4

Step-by-step explanation:

You can convert 2/3 to 4/6 so that the denominators for the two fractions you are dividing are the same.

4/6 divided by 1/6 is 4 because 4/1 = 4

PLEASE HELP.. THIS IS DUE TONIGHT I WILL MARK BRAINIEST

Answers

Answer:

1. Slope is -3

2. 85 meters high

3. y=60x

4. There are no solutions (C)

5. B Lana saves better at 40 dollars weekly while Elena saves 37 per week

Step-by-step explanation:

Find the value for p given the equation p/2+1=3

Answers

Take 1 to the other side as negative


p/2=2


Take 2 to the other side and multiply it


2*2 is 4


So p is 4

Please help me with this

Answers

Answer:

55% in Decimal form: 0.55. 55% in Fraction form: 55/100. Hope this helps

Step-by-step explanation:

Which arithmetic sequence is represented by the expression 3n+1 , where n represents the position of a term in the sequence?
A.3,6,9,12,15,...
B.4,7,10,13,16,...
C.4,5,6,7,8,...
D.3,4,5,6,7,...

please help it is for a test and it is due tomorrow.

Answers

Answer:

a

Step-by-step explanation:

The arithmetic sequence represented by the expression 3n+1 , where n represents the position of a term in the sequence is B.4,7,10,13,16,...

check:

A. 3,6,9,12,15,...

using the 4th term

first term, a = 3

4th term = 12

3n + 1

= 3(4) + 1

= 12 + 1

= 13

not applicable

B. 4,7,10,13,16,...

using the 4th term

first term, a = 4

4th term = 13

3n + 1

3(4) + 1

= 12 + 1

= 13

applicable

C. 4,5,6,7,8,...

using the 4th term

first term, a = 4

4th term = 7

3n + 1

= 3(4) + 1

= 12 + 1

= 13

not applicable

D. 3,4,5,6,7,...

using the 4th term

first term, a = 3

4th term = 6

3n + 1

= 3(4) + 1

= 12 + 1

= 13

not applicable

Therefore, arithmetic sequence represented by the expression 3n+1 , where n represents the position of a term in the sequence is B. 4, 7, 10, 13, 16,...

Read more:

https://brainly.com/question/13711310

find the square root of 5.494
[tex] \sqrt{5.494} [/tex]

Answers

Answer:

the square root of 5.494 is 2.34

Step-by-step explanation:

The computation of the square root of 5.494 is as follows"

According to the question it is mentioned that

The number is 5.494

Now the square root of the above number is

[tex]\sqrt{5.494}[/tex]

= 2.34

Hence, the square root of 5.494 is 2.34

Therefore the same is to be considered

pls hellpppp meee brainly​

Answers

Answer:

A

Step-by-step explanation:

9x4=36

36+7=43


A sum of money invested at the compound interest payable yearly has interest in
2 years and 4 years are Rs. 4,200 and Rs. 9282 respectively. Find the rate of
interest​

Answers

Answer:

49% and 30% respectively

Step-by-step explanation:

Step one:

Given data

Principal =  Rs. 4,200

Final Amount= Rs. 9282 respectively

time = 2 years and

time = 4 years

Required

The rate of interest for 2 and 4 years

Step two:

the compound interest formula is

A= P(1+r)^t

for 2 years

Substitute

[tex]9282= 4200(1+r)^2\\\\9282/4200= (1+r)^2[/tex]

[tex]1+r= \sqrt{\frac{9282}{ 4200} }\\\\1+r= \sqrt{2.21} \\\\1+r= 1.49\\\\r=1.49-1\\\\r= 0.49\\\\[/tex]

the rate is 49%

For 4 years we have

[tex]9282= 4200(1+r)^4\\\\9282/4200= (1+r)^4[/tex]

[tex]1+r= \sqrt[4]{\frac{9282}{4500} } \\\\1+r=\sqrt[4]{2.21} \\\\1+r= 1.30\\\\r=1.30-1\\\\r= 0.30\\\\[/tex]

the rate is 30%

A major technology startup company is growing incredibly fast. The company
started with just 4 employees, but is tripling its amount of staff every year. How
many people will be working for the company in 8 years?

Answers

Answer:8748

Step-by-step explanation:

Tripled per year = x3

1st year 4

2nd year 4 x 3 = 12

3rd 12 x 3 = 36

4th 36 x 3 =108

5th 108 x 3 = 324

6th 324 x 3 = 972

7th 972 x 3 = 2916

8th 2916 x 3 = 8748

the scale factor between two similar shapes is 4. what is the scale factor of area

Answers

I think the scale of the factor of area is 2

Answer:

16

Step-by-step explanation:

Libby’s family went out to dinner. The dinner bill was $95 and the family gave the server a 20% tip.

a) What’s the tip? What’s the total of the dinner? Please show your math work and don’t forget the unit Please show your math work and don’t forget the unit.

PLS HELPPPP

Answers

uh is the tip is in 95 if so its 19 dollars

Answer:

$19 was the tip.

Step-by-step explanation:

A) The tip was $19 dollars. If you add the tip with the bill, it costs $114.

19*5= 95 so that mean $19 was the tip.

I really hope this helps!

What is the check digit, d, for the credit card number shown below?
6424 9813 2720 008d
А. 1
B. 3
с. 5
D. 7

Answers

Answer:

A.1

Step-by-step explanation:

I did a check digit calculator and it said that this would be the check digit

The check digit is 1.

Step-by-step explanation:

The check digit on credit is calculated by the following step:

Mark each digit odd and even from the right side.Now multiply each digit at an even place with '2'.And if the number after multiplication is double-digit then add both the digit to obtain a single digit.Now add all the digits obtained in the previous step along with digits at odd places.To this sum obtained check by adding what digit it becomes next multiple of '10'.And that digit will be our check digit.

Given:

The creditcard number: 6424 9813 2720 008d

To find :

Check digit,d

Solution:

6424 9813 2720 008d

Marking odd and even places from right side:

(e:even place,o:odd place)

e,o,e,o     e,o,e,o     e,o,e,o     e,o,e,o

6 4 2 4     9 8 1 3     2 7 2 0     0 0 8 d

Multipling every even place digit with '2'.

12,4,18,2,4,4,0,16

If two digit number then add both digits to have single digit

12,4,18,2,4,4,0,16 → 1+2,4,1+8,2,4,4,0,1+6 → 3,4,9,2,4,4,0,7

Now adding all the digits obtained in prevoius step with digits at odd place:

(3+4+9+2+4+4+0+7)+(4+4+8+3+7+0+0)= 59

The next multiply of 10 can be obtained by adding 1 to '59' that is 60. So, the check digit will be'1'.

59+1 = 60

(60 is a multiple of the number '10'.)

The check digit is 1.

Learn more check digit here:

brainly.com/question/23944800?referrer=searchResults

Describe your method on how to identify the vertex angle of an isosceles triangle.
My method to identify the vertex angle of an isosceles triangle is

Answers

I don’t think I have to be there

Quadrilateral ABCD is translated to get quadrilateral A'B'C'D'. vertex A is at (-5,2) , and vertex A' is ay (2,-2), quadrilateral ABCD is translated blank..... if vertex B is at (-6,5), then vertex B is at​

Answers

Answer:

(-1,3)

Step-by-step explanation:

Given that the quadrilateral ABCD is translated to get quadrilateral A'B'C'D'. The vertex A is at (-5,2) is translated to vertex A' is at (2,-2).

The translation is x-direction, a, is the difference of x-coordinates of both the points, a=2-(-5)=2+5=7.

The translation is y-direction, b, is the difference of y-coordinates of both the points, b = -2-2 = -4.

As all the points are translated by the same magnitude as well as in the same direction, so by adding a to x and b to y coordinate of any points, the translated point can be determined.

The vertex of point B is (-6,5), so, the vertex of the point B' would be (-6+a, 5+b)=(-6+7, 5+(-4))=(-1,3).

Hence, the vertex of point B' is (-1,3).

What is the volume of a pyramid that has the same base and height as this prism?
the length is 3 and the width is 3 and the height is 9

Answers

Answer:

Step-by-step explanation:

The answer is 18

Answer:

27

Step-by-step explanation:

Your company makes game parts using 3-D printers. One customer wants a circular game coin that is 2.0 centimeter across and 0.5 centimeters thick. You need to estimate the of plastic you will need for each arch of 50 coins. How many cubic centimeters is that, rounded up if necessary to be a multiple of 10 cubic centimeters?

Answers

Answer:

80 cm^3

Step-by-step explanation:

The computation of the number of cubic centimeters rounded up to 10 cubic centimeter is shown below

For any type coin,

r = d ÷ 2

= 2 ÷ 2

= 1 cm

l = 0.5cm

For making 1 coin, the plastic required would be = Volume of coin

= πlr^2

= 3.14 × 0.5 × 1 × 1

= 1.57cm^3

Now For 50 coins,

Plastic needed is

= 50 × 1.57

= 78.5cm^3

= 80 cm^3

please help the correct awnser gets brainlist
3 1/2 x 4

A. 3/4

B. 7 1/2

C. 12 3/4

D. 14

Answers

Answer:

Answer is D)14

Step-by-step explanation:

if u convert 3 1/2 into an improper fraction then it should look lie 7/2 the multiply that by 4 which equal 28/2 then divide that and it will equal 14

PLEASE HELP ME ASAP! ANYONE THATS WILLING TO GIVE THE RIGHT ANSWER.

Answers

Answer:

The perimeter of the bedroom floor is 44 ft

Step-by-step explanation:

The Perimeter of a Rectangle

Given a rectangle of width W and length L, the perimeter is the sum of all four sides:

P = 2W + 2L

We know a rug of dimensions 6 ft x 10 ft is located at the center of a bedroom floor and there are 1.5 ft exposed on all four sides of the bedroom.

Adding this length to each side, we have the dimensions of the bedroom as:

6 + 1.5 + 1.5 = 9 ft

10 + 1.5 + 1.5 = 13 ft

Thus, the perimeter of the bedroom floor is:

P = 2*9 + 2*13 = 44 ft

The perimeter of the bedroom floor is 44 ft

Find the HCF of following polynomial expression.
x^3-x, x^2-x-2​

Answers

Answer:

HCF of following polynomial expression is x

jorge is at the party supply store buying ballons for a birthday party . for every 5 ballons he buys he pays $6.25 what is the cost per ballon​

Answers

5 / 6.25 = $0.8

divide the amount by the cost

Answer:

1.25

Step-by-step explanation:

6.25/5 is equal to 1.25

1. If the area of the rectangle is 12 in squared and the base is 4/11, What is the height of the
rectangle?

33 in
48/11 in
4 4/11 in
12/11 in
WILL GIVE BRAINLEST

Answers

Answer:

33 jdkdkskfjsksjaks

Step-by-step explanation:

4/11×x=12

x=33


Find a formula for the transformation of reflection across the line l with equation y = -x.

Answers

Answer:

The rule or formula for the transformation of reflection across the line l with equation y = -x will be:

P(x, y) ⇒ P'(-y, -x)

Step-by-step explanation:

Considering the point

[tex]P(x, y)[/tex]

If we reflect a point [tex]P(x, y)[/tex] across the line [tex]l[/tex] with equation [tex]y = -x[/tex], the coordinates of the point P flips their places and the sign of the coordinates reverses.

Thus, the rule or formula for the transformation of reflection across the line l with equation y = -x will be:

P(x, y) ⇒ P'(-y, -x)

For example, if we reflect a point, let suppose A(1, 3), across the line [tex]l[/tex] with equation [tex]y = -x[/tex], the coordinates of point A flips their places and the sign of the coordinates reverses.

Hence,

A(1, 3) ⇒ A'(-3, -1)

Find the coordinates of a point in Quadrant 3 that makes the following triangles congruent.

Triangle GHJ: G (1,-6), H (2,-5), J (2,1)

Triangle NOP: N (-6,1), O (-5,2)

A. P(-3,-4)

B. P(-4,-3)

C. P(-5,-6)

D. (-6,-5)

Answers

Answer:

c. triangle ghj

d. triangle nop (i could be wrong for both though)

Step-by-step explanation:

Two shapes that are the same size and the same shape are congruent. They are identical in size and shape

question number five

Answers

Answer:uhhh

Step-by-step explanation:

HELP!!!! 15 points marked brainliest

Answers

Answer:

it's answer is SAS

hope it helps you

Answer:

SAS is the right answer

Step-by-step explanation:

.........

Help please I think Ik the answer but I’m not sure and I need to get my grade up in my math class so please

Answers

y is greater than or equal to x-4

Y> or = to -4 + x or y> or = to x-4
Other Questions
Is this correct if not correct me MARKING BRAINLIEST! plant or animal and to explain the reasoning for their conclusion. What is the correct response?The cell is an animal cell because it has a cell membrane and no cell wall. Cell walls are unique to plant cells.The cell is a plant cell because it has cytoplasm, which helps the plant make their own food from sunlight.The cell is a plant cell because it has chloroplast, which helps the plant make its own food from sunlight.The cell is an animal cell because it has chloroplast used for making useable energy. Zachary buys a one pint bottle of juice for $3.20. What is the unit rate of the cost of the juice per fluid ounce?How many fluid ounces of juice did Zachary buy? The ________ judged those known as heretics, who taught false doctrines. 9. What effect did King Ezana's conversion have on AXum? Sorry guys ima be asking a lot of questions cause I need to pass or Ill drop out and I dont wanna have to do that Please answer:Galileo, in order to measure the speed of light, performed this simpleexperiment: He and his assistant each took a lantern that had a shutter in front of it,and stood on hilltops one mile apart in the night.Galileo was to flash his lantern, and the assistant was to open the shutter of his ownlantern as soon as he saw the light from Galileo's lantern. Galileo had planned tomeasure the time taken for light to travel from one hill to the other and back, andcalculate the speed of light using the formula, Speed = distance traveled / timetaken But he could not measure the speed of light using this method. What couldhave been the reason for this?A. The distance between the two hills was too much for them to see the light fromthe other person's lantern.B. Light does not travel in straight lines and so the distance traveled by it cannotbe measured.C. The time taken for the light to travel would have been too little to have beenmeasured by them.D. Light does not travel because it is present everywhere, so its 'speed' cannot becalculatedI asked this question before also please answer Which of the following is NOT a contribution of industrialists like AndrewCarnegie, Cornelius Vanderbilt, and John Rockefeller?Select one:1Their innovations/businesses helped the United States become a world industrialpower2Their donations to learning and the arts encouraged the building of museums anduniversities3Their focus on supporting workers led to benefits, such as health care and a 5-daywork week4Their poor treatment of workers led to protests and the formation of labor unions. 4. Japan started to industrialize and create an empire after trading with the US.(1 Point)O TrueFalse In a school , there are 260 students and out of them 182 are boys, find: a) ratio of boys and girls b) ratio of girls and boys is it right to cover two different nationality for being guarantee of living and security give your opinion The completition of the transcontinental railroad, the invention of the Bessemer Process and improvements in communication contributed to which of the following? -Decreased immigration from European and Asian countries. -Decreased motivation of farmers to settle in western territories.-An increase standard of living for the lowest socioeconomic class.-Large-scale economic growth that resulted in the rise of big business. Hey, I'm writing a newspaper article about the Egyptians, how do I start it? can someone help me:list down 3 recession marketing strategy? What are the 6 parts of a shadow IN ORDER using these termsShadowLightHighlightCore ShadowCast ShadowReflected Light Two random samples of 25 people were asked how many 12-ounce cans of soda they consume each week. The first sample contained both males and females, aged 12-19. The second sample contained both males and females, aged 20-39. The results are shown in the table below. Using complete sentences, make one inference comparing the two groups, and explain your reasoning. Find the unknown of the following Please help. 50 points + brainliest 1. Combine the following expressions.ax + b y - cx2. Combine the following expressions.4m + 5n - m + 6m - 3n3. Combine the following expressions.16a - 49a + 81a4. Combine the following expressions a125y - b 45y(NOTICE: If you do not know the answer, please do not answer. Trolls seeking points will be reported). Guys pls help me !!!! Which statement best describes the overall function of the human respiratory system? A. The heart pumps blood containing carbon dioxide into the lungs, where it is absorbed. B. Oxygen is transferred into the blood, which circulates the gas throughout the body. C. Oxygen is taken into the lungs and exchanged for carbon dioxide, which is exhaled. D. Carbon dioxide is taken into the lungs and exchanged for oxygen, which is absorbed. What was the fight about in the Korean War