Mathematics Middle School

Will give brainliest is steps are listed out.

Will Give Brainliest Is Steps Are Listed Out.

Answers

Answer 1

Answer:

C

Step-by-step explanation:

Write the expression out

factor it

\((\frac{(x+1)(x-1)}{6x})(\frac{3x(x)}{x(x+1)})\)

cancel out all everything that is the same and appears on both the top and the bottom

Cancel out:

(x+1)

(x)

(x)

leaves you with

\(\frac{3(x-1)}{6}\)

3 goes into 6 '2' times so the 3 in the numerator cancels out too. The 6 in the denominator turns into a 2

This leaves you with the final answer of

\(\frac{x-1}{2}\)

Answer 2

Answer:

C

Step-by-step explanation:

after factoring them

they become:

\(\frac{(x+1)(x-1)3x^2}{6x^2(x+1)}\)

after dividing the numerator and denominator by 3x^2(x+1)

it becomes (x-1)/2

Related Questions

Please help answer number 1 and write down how you did it

Please help answer number 1 and write down how you did it

Answers

The answer would be B. 450 + 225m

This is the answer because it starts off with $450 in total

Then Lani ADDS $225 every month, which is the m variable,

Because the $225 would be multiplied by m for every month she would add $255.

Answer:

the answer is B) y = 450 + 225m

Step-by-step explanation:

If she starts with $450 and every month she adds $225 then every month you add 225 to the 450.

ex)

after 5 months she will have $1575 in her account.

450 + 225m = y

450 + 225(5) = y

450 + 1125 = y

1575

Find the percent of the number.

50% of 70 is
.

Question 2
Explain your method.

Answers

Answer:

35

Step-by-step explanation:

Using proportions, you are correct:

70/x = 100/50

cross multiply

100x = 3500

divide both sides by 100 to get your answer.

35 because 70\2= 35.

The international space station has small cupboards that are used for storage. A cupboard is drawn below (redrew by me cause I'm using chrome book and computer)
1. What is a formula that can be used to find the area of one triangular section of the door?
2. How do you know the formula will work?

The international space station has small cupboards that are used for storage. A cupboard is drawn below

Answers

Answer:

\(A=\frac{ab}{2}\) or \(A = a *\sqrt{c^2-a^2} /2\)

Step-by-step explanation:

Depending on the values you take depends on the equation you would use to solve for the area of a right triangle(the first answer accounts for measuring both arms(the sides connected to the 90 degree angle(a and b)), where as the second answer accounts for using the hypotenuse and one of the arms). That means that a 90 degree angle is involved, or as illustrated here, the square in the bottom right corner. If this were a non-right angle triangle, a different formula utilizing the height of the triangle would be used instead.

\(A = \frac{h_{b}+b}{2}\)

Since the right angle exists, a height is already given using one of the arms of the triangle in its place. We can also confirm it is a triangle by adding up all degrees of the triangle, in which it would equal 180 degrees confirming it is indeed a triangle as well.

By using trigonometric relations we will see that the area is:

How to find the area of one triangular section?

Remember that the area of a right triangle is equal to the product between the cathetus divided by 2.

Sadly, here we don't have the measures of any sides of the triangle, so getting the actual area is impossible, but if we assume that some dimension is given (like the height, let's say that is h).

h is the cathetus adjacent to the 60° angle, then the other cathetus (the bottom one) is given by:

tan(60°) = x/h

x = tan(60°)*h

Then our two catheti are h and tan(60°)*h.

This means that the area will be:

Here we only used trigonometric properties, so this area will work for any height given (always that the value of h is the cathetus adjacent to the 60° angle).

If you want to learn more about right triangles:

brainly.com/question/2217700

#SPJ1

The international space station has small cupboards that are used for storage. A cupboard is drawn below
The international space station has small cupboards that are used for storage. A cupboard is drawn below

Which expression resulted from using the Distributive Property to generate an expression equivalent to 4( 1/4a + b – 6)?
a. a + b – 24
b. 4a – 6b
c. 4a + b – 6
d. a + 4b – 24

Answers

Answer:

Step-by-step explanation:

kzjzjjs

Answer: D

because you are just multiplying everything by 4 so 1/4 would be 1 but since it has a variable it would be a (for it to be simplified) then you would multiply 4 by b which would result in 4b then you would multiply -6 by 4 (it would be negative because the “-“ sticks with the 6)

Please answer the question

Please answer the question

Answers

Equation: 8x = x + 70

x = 10

Both angles measure 80°

—
Work:

the two angles are vertical angles, meaning that they are equal to each other, hence the equation will be this:

8x = x + 70

To solve, subtract x on both sides

7x = 70

Divide 7 on both sides to isolate the x

x = 10


Now, to find both of the angles measurement, plug in 10 for x.

10 + 70 = 80

8(10) = 80

Answer:

Equation:x+70=8x and both angles measure 80 degrees.

Step-by-step explanation:

Equation:x+70=8x

That is because vertical angles are congruent.

x+70=8x

-x -x

70=7x

x=10

Both angles measure 80 degrees.

Earn points, answer both questions!

Earn points, answer both questions!
Earn points, answer both questions!

Answers

Answer:

Area of five squares = 1289.09 square units

Perimeter =  194.6 units

Step-by-step explanation:

Area of square and perimeter:

   First find the length of each square, then find the area of each square.

To find the area of five squares, add all the area of each square.

Side of square1 = 27 units

\(\sf Side \ of \ square2 = \dfrac{2}{3}*27=2*9 = 18 \ units\\\\Side \ of\ square3= \dfrac{2}{3}*18=2*6=12 \ units\\\\Side \ of \ square4=\dfrac{2}{3}*12=2*4=8 \ units\\\\Side \ of \ square5=\dfrac{2}{3}*8=\dfrac{16}{3}=5.3 \ units\)

Area of square1 = 27*27 = 729 square units

Area of square2 = 18*18 = 324 square units

Area of square3 = 12*12 = 144 square units

Area of square4 = 8*8 = 64 square units

Area of square5 = 5.3*5.3 = 28.09 square units

Area of five squares = 729 + 324 + 144 + 64 +28.09

                                  = 1289.09 square units

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Perimeter of the composite figure = (27 + 27+27+9) + (18+18+6) +(12+12+4) + (8+8+2.7)+ (5.3+5.3+5.3)

                                                         = 90 + 42 + 28 + 18.7 + 15.9

                                                          = 194.6 units

the area of the five squares is 1289.09 square units

the perimeter is 194.6 units

Please help with this question please.

Please help with this question please.

Answers

M < 7 is the answer because if m was equal to seven the equation would be 19 > 19 which cannot be correct so m must be less than 7

Option d. m>7 is the correct answer.

Given,

     2m+5>19

or, 2m+5+(-5)>19+(-5)      [adding both side with a negative number doesn't

                                           change the inequality sign]

or, 2m>14

or, (2m/2)>(14/2)             [also dividing both sides by a non-negative number     doesn't change the inequality sign]

or, m>7.

Hence, m>7 is the correct answer to the given question.

Learn more about inequality problems,

brainly.com/question/33962875

Derek wants to practice playing the guitar for 9 hours in 8 days. Which of the following statements match the given ratio for guitar practice?

A.

32 hours in 36 days

B.

30 hours in 28 days

C.

27 hours in 24 days

D.

36 hours in 26 days

Answers

Answer:

The answer is C.

Reasoning:

No other numbers match up but D)

When you divide 24 by 8 you get 3 and 3 times 9 is 27

Answer:

D.Reasoning

Step-by-step explanation:

Please help me. Mark me the branliest.

Topic: Percentage

Q1) 80% of a dog's mass is equal to 24% of the mass of a lion. If the mass of the lion is 105 kg more than the mass of the dog, find the total mass of the dog and the lion.​

Answers

To solve this problem, let's denote the mass of the dog as D and the mass of the lion as L.

We are given that 80% of the dog's mass is equal to 24% of the lion's mass. Mathematically, this can be expressed as:

0.80D = 0.24L

We are also given that the mass of the lion is 105 kg more than the mass of the dog:

L = D + 105

We can use these two equations to find the values of D and L.

Substituting the value of L from the second equation into the first equation:

0.80D = 0.24(D + 105)

Now, let's solve for D:

0.80D = 0.24D + 0.24(105)

0.80D - 0.24D = 25.2

0.56D = 25.2

D = 25.2 / 0.56

D ≈ 45

Now that we have the value of D, we can find the value of L by substituting it back into the second equation:

L = 45 + 105

L = 150

Therefore, the total mass of the dog and the lion is:

D + L = 45 + 150 = 195 kg

So, the total mass of the dog and the lion is 195 kg.
Person above is correct

pls help me:( I dont knowwwww

Answers

Answer:

Where do u want help at??

Answer:

Step-by-step explanation: you don't know what whatever it is I can help or contact a tutor we can be friends and I can help you solve things!

A bird goes from a lower location to a higher location at a rate of 4 meters per second. Which equation models the change in the bird's position at 60 seconds.

A. (-60)(-4) = -240
B. 60 * 4 = 240
C. 60(-4)= -240
D. 60(-4) = 240

Answers

the answer is d
explanation
60(-4) = 240 is the answer to your question

Greta uses 2 ounces of pasta to make 2/9 of a serving of pasta. How many ounces of pasta are there per serving?

Answers

Answer:9 ounces

Step-by-step explanation:

So first you want to start off with what you know

2/9 of a swerving is 2 ounces of pasta

Which aslo lets you know 1/9 of a serving = 1 ounce of pasta

Since 1/9 of a serving is 1 ounce you want to times that by 9 to get a whole serving

1 * 9 = 9

So you know that 1 serving is 9 ounces of pasta

9 ounces per serving

20 points to whoever gets these right!! <3

20 points to whoever gets these right!! &lt;3
20 points to whoever gets these right!! &lt;3

Answers

Answer:

1st one 8/20

Step-by-step explanation:

Last one is the two way tables it should be 6/8

A random sample of 44 seventh graders found that 33 participate in a local contest making​ duct-tape wallets. Complete parts a through c.

Answers

I’m not sure what u mean

PLZZZZZ HELP The steps below show the incomplete solution to find the value of n for the equation (4n − 2n + 4 = −1 + 17) :
Step 1: 4n − 2n + 4 = −1 + 17
Step 2: 4n − 2n + 4 = 16
Step 3: 2n + 4 = 16 Which of these is most likely the next step?
2n = 12
2n = 4
2n = 8
2n = 20

Answers

Answer:

2n=12

Step-by-step explanation:

next step:

2n=16-4

2n=12

Answer:

2n+4=16

Step-by-step explanation:

2n=16-4

2n=12

Pls answer this for me

Pls answer this for me

Answers

Answer : B and D (the second option and the fourth option)

In total, there are 100 blocks. There are 4 boxes.
100/4 = 25 therefore B would work.
D would also work as 41-16=25 and 9+16 is also 25, meaning boxes C and D would be equal. Boxes A and B would also be equal as 32-7=25 and 18+7=25.


A would NOT work as 41-21 is equal to 20, meaning box C would be lacking 5 blocks. C would NOT work as whilst A and B would be equal, C and D would not be. E would also NOT work as nothing would be equal at all.
B: Remove all blocks and make four equal piles of 25, then put each pile in one of the boxes and D: Remove 7 blocks from box 1 and place them in box 2 and remove 16 block from box 3 and place them in box 4

Explain the cosine rule and sine rule while also saying how to use it and provide examples (keep it in simple terms)

Answers

Answer:

Sure, I'll explain the cosine rule and sine rule in simple terms:

The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.

Here's an example of how to use the cosine

Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.

Using the cosine rule:

a^2 = b^2 + c^2 - 2bc * cosA

where A is the angle opposite side a, we can plug in our values and solve for a:

a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)

a^2 = 64 + 36 - 96 * 0.707

a^2 = 10.56

a = sqrt(10.56)

a = 3.25 (rounded to two decimal places)

Therefore, the length of side a is approximately 3.25 units.

Answer:

Step-by-step explanation:

which equation represents a porprotional relationship?

which equation represents a porprotional relationship?

Answers

D: y=3x basically means for one of x there is three y, you can write it in a 3:1 ratio as well, which you can’t do with the other functions, since they’re not going to have a ratio like that because one’s proportionality is ruined with a constant, one doesn’t change, and one is exponential.
Answer’s D


Hope it helps

A line passes through (3, 7) and (6, 9). Which equation best represents the line?
y = 3/2x + 5

y = 2/3x + 5

y = 3x + 2

y = 2/3x + 2

Answers

Answer:

y=2/3x + 5

Step-by-step explanation:

y=2/3x + 5
is the answer

PLEASE HELPPPPP MEEEEE

PLEASE HELPPPPP MEEEEE

Answers

ALLAH IS ALL KNOWING AND ALL HEARING

Step-by-step explanation:

"There is no God but Allah, and Muhammad is his messenger." This is the basic statement of the Islamic faith: anyone who cannot recite this wholeheartedly is not a Muslim. When a Muslim recites this they proclaim: That Allah is the only God, and that Muhammad is his prophet

in the scale used on a blueprint, 1/4 represents 2 feet. on the blueprint what is the length of a room with an actual length of 20 feet

Answers

You need to multiply so 40 is your Answer

Dirk sold 7 more than 2 times as many gym memberships this month than last month. This month he sold 43 memberships.

Question 1
Part A

Use arithmetic to find the number of memberships Dirk sold last month.

Enter the correct answers in the boxes.

Expression:

memberships

Part B

Use algebra to find the number of memberships Dirk sold last month.

equation:

memberships

Answers

Answer: 18

Step-by-step explanation:

x = last month

y = this month

y = 2x + 7

y = 43

43 = 2x + 7

43 - 7 = 2x

36 = 2x

36/2 = x

18 = x <== he sold 18 gym memberships last month

18 memberships last month

PLEASE HELP IMMA GET YELLED AT IF "I" DONT DO THIS

PLEASE HELP IMMA GET YELLED AT IF "I" DONT DO THIS

Answers

Answer:

so you can write the equation like

y=x+2/5

Answer:y=x+2/5

Step-by-step explanation:

solve the volume of a cone, V=1/3πr^2h, for h.

h = ?​

Answers

Answer:

h = 0.011

Step-by-step explanation:

H = 0.011 Hope this helps

In the example shown, how many miles will June walk in 2.8 hours? Estimate first, then compare your answer to the estimate. 1.7 miles in 1 hour if she walks at the same rate how far will she walks in 1.5 hours

Answers

Answer:

What are the examples I can't answer this without them

Step-by-step explanation:

At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.


Ketchup Relish Chili
54 36 60


Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042

Answers

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

Hi! I’ll give brainliest to best answer!

Thanks so much in advance!

Hi! Ill give brainliest to best answer!Thanks so much in advance!

Answers

I believe the answer is 6!
D-6
(Use BODMAS/PENDMAS/BIDMAS)

-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)

Answers

Answer:

Option #4

Step-by-step explanation:

Expand option #4

=-3(1-2x)

=-3 -2x*-3

=-3+6x which is what your original equation was.

becoz it is a multiple choice, we can go by elimination, hence when we expand #4, we will get -3+6x

PlEASE help so confused?

THANKS

PlEASE help so confused? THANKS

Answers

Answer:

0.25

Step-by-step explanation:

3 ÷ 12 = 0.25

5 ÷ 20 = 0.25

Hope this helps, thank you !!

Answer:

3 ÷ 12 = 0.25

5 ÷ 20 = 0.25

please help i’ll literally give brainlest if you show on a piece of paper or help!
no unnecessary comments
no links
i’ll take back my points if any bad comments!
thank you!!
please help:(

please help ill literally give brainlest if you show on a piece of paper or help!no unnecessary commentsno

Answers

Excuse my lines I didn’t use a ruler
please help ill literally give brainlest if you show on a piece of paper or help!no unnecessary commentsno
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