Mathematics Middle School

What is the value of k?

What Is The Value Of K?

Answers

Answer 1

Answer:

[tex]( {x}^{2} + 16x + 64) - (x + 8)(x - 4) = k(x + 8) \\ ( {x + 8)}^{2} - (x + 8)(x - 4) = k(x + 8) \\ (x + 8) - (x - 4) = k \\ k = (x - x) + (8 + 4) \\ k = 12[/tex]

Answer 2

Answer:

Step-by-step explanation:

a² + 2ab + b² = (a + b)²

2ab = 2 * x * 8 = 16x

x²  + 16x + 64 = x² + 2* x * 8 + 8²  

                      = (x + 8)²

x² + 16x + 8 - (x +8)(x - 4) = (x+8)² - (x+ 8) (x -4)

                                        = (x +8)(x +8) - (x + 8)(x - 4)

(x +8 ) is common in both terms

                                        = (x + 8) [ (x + 8) - (x - 4) ]

                                        = (x + 8) [ x + 8 - x + 4 ]  

{Combine like terms. so x + (-x ) = 0   and 8 +4 = 12}

                                         = (x + 8) [ 12]

k = 12

Related Questions

PLS HELP, WILL REWARD BRAINLIEST !!

Answers

Answer:

B/2

Step-by-step explanation:

Your answer was really close, but most of the dots are on the right, not left.

Answer:

I think it's the first one or the second one

Step-by-step explanation:

ANSWER BOTH QUESTION FOR BRAINLIST

Answers

Answers:

#4= 5

#5= +3

#4 Jake of ratio is: 3:15

                          2:10

                          5:25

So 25/5 or 10/2 or 15/3 they all get the same result which is 5

#5 The pattern of the X is 0, 1, 2, 3...

     The pattern of the Y is 3, 6, 9, 12...

The pattern of Y would be adding 3.

+3

4)5
3)add 3
I believe that this is correct

Zac collected 7/8 pounds of aluminum cans. Brittney collected 11/3 times as many pounds as Zac. How many pounds of aluminum did Brittney collect?

Answers

Answer:

77/24 pounds is the answer of the question

Answer:

3.208333333

=77/24

what is the value of u ?

Answers

Answer:

u = 47

I would explain but some people can't read

u is 47
u=47
:))))))))))

Jasper kept track of how long he had to wait for a train. The data below shows the wait time in minutes for 5 days.

Answers

What exactly are we trying to answer?

He waited for more than 5 days I think if I’m wrong I need a chart

One page reflection on what you learned this year. (Proportional relationships, equivalent expressions, surface area, volume, probability, etc...)
Optional

1 page, 12 size font, double spaced

Answers

Answer:

Dude we aren't in your class you need to write this one becuase we werent there AT ALL.

Step-by-step explanation:

ur gonna need to explain more

HELP PLSS i need this

Answers

Answer:

Option F

Step-by-step explanation:

formula of gradient = rise ÷ run

In this case, to calculate (negative) gradient for PR, take PQ ÷ QR.

Apply current step to calculate gradient of RT.

Find the missing sides from the right-angled triangles given below.

Answers

Answer:

c=25

Step-by-step explanation:

pythagorean theorem

<PQR= c²=24²+7²

c²=576+49

c²=625

c=√625

c=25

Water pineapple method X 3 divided by 124918 for the colored water method

I need this FASTTTTTT!

Answers

Answer:

18900 cm

Step-by-step explanation:

1. Multiply 18 by 25 to get the area of the floor

2. Multiply the result by 42 cm (from the top of the rectangle) to get the total volume because you are multiplying the area of the bottom rectangle by the top to get the volume

3. Answer: 18,900 cm

Good luck :)

18,900 cm from the looks of it

Can someone help me out?

Answers

Answer: b

Step-by-step explanation:

the answer is b :)))))))))

Sketch the graph of a quadratic function that has the following key features:

Opens downward
Has x intercepts at (-2,0) and (4,0)

Answers

It is a it is a slip of negative 6 (-6)

Could someone help me figure out how to do the problem anyway like not answer just how to do it cause that's what I really wanted? Someone to help me work out the problem or like an example problem so I know how to do the problem. The problem is from the previous question I added

Answers

Wait what was the previous problem? I need that and then I can try to help. ;D

We can’t see the previous problem but maybe if you tell us what the problem was we could help :)

How do I solve this Problem

Answers

Answer:

The answer to this is 9b+10s, hope this helps.

Answer:

9b + 10s

hope this helps

please help me, i need is asap

Answers

Answer:

A

Step-by-step explanation

180-(114+47)=19

Draw polygon ABCD in this coordinate plane down bellow

Answers

Answer: ther u go

Step-by-step explanation:

Answer:

The answer is on the pic

Step-by-step explanation:

You pu the cordinaence one the graph and it makes a rectangle

the area part is area= 1/2 times perimeter x apothem

I hope this helped I don't know if this is 100% right but the formula might not be right

email your teacher if you need more help :))

Hurry Need Help I Will Give You Brainliest!!

Answers

Answer:

The measures of supplementary angles add up to 180°

If two supplementary angles are adjacent, they form a 360° angle. ( or a linear pair )

....of the known angle from 180

Step-by-step explanation:

Some common math techniques that are best to know generally

... 180
... 360 angle
... 180

what are The numbers that mark any location on a coordinate plane called? HELP DUE 10 MINSSS

Answers

Answer:

The numbers that mark any location on a coordinate plane are called 'points'.

Answer:

Points on the plane are located using two numbers - the x and y coordinates.

Step-by-step explanation:

Lol pleaseeeeeeeeeeee

Answers

Answer:

(9,3)

Step-by-step explanation:

It’s (9,3) I think...

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Answers

Answer:

1/4 of the pie

Step-by-step explanation:

If there is 4 equals parts each one employ gets 1

Answer:

1/16

Step-by-step explanation:

A quarter of a pie is 1/4. Since the manager wanted to cut it to 4 pieces (1/4 Pie times 4 People Equals 1/16), it would be 1/16, it wouldn't be 1/8 because the left over pie would've been cut in halves instead.

Who wants to vibe with me:))

Answers

Answer:

Please explain what it is you would like help with.

Find area of the shaded region. Thanks

Answers

Less than 8m^2 because it’s inside it

how do i explain this

Answers

Yo will explain it by a like a chart you see yours is x and y do that and see if that works hope I helped

Answer:

Step-by-step explanation:

this is like repeting addition or more commonly said multiplication if one is 1-4 then if 1-4 changes to 2-? then it is  4x2=8 so 2-8 etc

Is this statement true or false? A regular triangle has four lines of symmetry.

Answers

The statement is false. The only shape with fo it lines of symmetry is a square

Answer:

The statement is false. The only shape with fo it lines of symmetry is a square

Step-by-step explanation:

Simplify. 13 squared=

Answers

13 squared is 169 :)

The square of 13 is 169.

Here we have to calculate,

Squared of 13

Therefore, we can write it as

13² = 13 x 13

We have to multiply 13 with 13

Since we know that,

They are the numbers multiplied by themselves, according to the square number definition. In other terms, a square number is formed by multiplying a natural number by itself.

And to multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Now,

    1  3

 x 1   3

__________

   3  9

1  3  x

______

1 6 9

Hence,

13² = 13 x 13

     = 169

Learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ6

Ashley wants to empty her fish tank
before she cleans it. The fish tank holds
34 gallons. She is using a one-quart
container to empty the tank by hand.
How many full containers will she need
to empty the tank?

Answers

Answer:

136 full containers

Step-by-step explanation:

There is 4 quarts in a gallon. So you multiply 34 time 4.

136 gallons because there are 4 quarts in a gallon

Find area and circumference of the circle please!! I need help!!! :(

Answers

Answer:

radius r = 12 in

diameter d = 24 in

circumference C = 75.3982237 in

area A = 452.389342 in2

Step-by-step explanation:

Radius r is 12 and diameter is 24

22. Starting with x=0.393939, express x as a fraction in simplest form.

Answers

393939/1000000

Free 5 points !

Which word does not belong?

• descubrir

•resolver

•platicar

•averiguar

ANSWERS

1.) C. platicar

2.) D. cuerpo

3.) C. a murderer

4.) B. closed

5.) B. to kill

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Answers

nnnnnnnnn. sksjsjen



explanation
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Find surface area of the prism. Thanks.

Answers

Answer:

323 yd

Step-by-step explanation:

7 x 7 x 7

49 x 7

323

so its 323 yards

I’m not a expert but I thinks it’s 323 yd

help show work thanks there is a example

Answers

First one: 7/15
Second one : 5/12
Yea I check it and did all the math 7/15 and 5/12
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