please help. I don't understand​

Please Help. I Don't Understand

Answers

Answer 1

9514 1404 393

Answer:

  8m³ -4m² +3m

Step-by-step explanation:

The perimeter of a triangle is the sum of the lengths of its three sides. Here, you're given the perimeter and two of the sides. The third side will be the length that makes up the difference.

  P = side 1 + side 2 + side 3

  18m³ +2m² -m = (5m³ +3m² -2m) +(5m³ +3m² -2m) + side 3

  18m³ +2m² -m = (10m³ +6m² -4m) + side 3 . . . . . collect terms

  18m³ +2m² -m - (10m³ +6m² -4m) = side 3 . . . . . subtract (10m³ +6m² -4m)

  m³(18 -10) +m²(2 -6) +m(-1 +4) = side 3 . . . . . . . . . group like terms

  8m³ -4m² +3m = side 3


Related Questions

NEED HELP WILL GIVE YOU EXTRA POINTS BY BRAINLIEST

Answers

Answer:

(-2,4)

Step-by-step explanation:

When you reflect over y = x, the x and y change places.  F' is at (4,-2) .

Answer: (-2, 4)

Step-by-step explanation:

Swap x and y coordinates since you're reflecting over y=x.

(4, -2)==>(-2, 4) ==> The slope between these two points should be -1(y=-x). That way, you know the graph is being reflected over y=x.

m=(y2-y1)/(x2-x1)

m=(4-(-2))/(-2-4)

m=(4+2)/(-6)

m=6/(-6)

m=-1 ==> These two points are confirmed to be reflected over the line y=x.

Old coordinates: (-2, 4)

1. The total cost of renting a movie depends on the number of days you kept the movie. The table below gives the total cost of keeping a movie for a certain amount of days. Use this data to answer the following​

Answers

Answer:

2.25

Step-by-step explanation:

we should find the slope of table, bc question is that "find the rate of change" so pick up two any points

(3; 5.00)

(4; 7.25)

Formula of Slope:

[tex] \frac{y1 - y2 }{x1 - x2} [/tex]

[tex] \frac{5 - 7.25}{3 - 4} = 2.25[/tex]

What is 4x3.14x9x9x9

Answers

Answer:

9156.24

Step-by-step explanation:

calculator

Answer:

its 9156.24

Step-by-step explanation:

WILL MARK BRAINLIEST FOR CORRECT ANSWER!!!!!!!!!!!!!

Maisie has saved up $50 to buy concert tickets, but the tickets cost $125. She is able to earn $15 per day by walking her neighbor’s dogs. How many days will Maisie have to walk the dogs to earn enough money to buy the tickets? Let d = the number of days worked.

What equation will you use to solve this word problem?

What equivalent equation can you write after combining like terms?

How many days will Maisie have to walk the dogs?

Answers

D=5

to make the $75 for the $125

Answer:

What equation will you use to solve this word problem?

✔ 50 + 15d = 125

What equivalent equation can you write after combining like terms?

✔ 15d = 75

How many days will Maisie have to walk the dogs?

✔ 5 days

Step-by-step explanation:

I got it right so hope this helped you and other people out :)

PLEASEEEEEE HELPPPPPPPP I’ll MAKE YOU BRAINLY

When viewed from the side, the frame of a ball-return net
angles with the ground.
forms a pair of supplementary
Find m/BCE and mZECD.

Answers

Answer:

BCE= 115    ECD=65

Step-by-step explanation:

(5x+10)+(3x+2)=180

8x+12=180

8x=168

x=21

5(21)+10=115

3(21)+2=65

Answer:

<BCE=115°

<ECD=65°

And their sum is 180°

Step-by-step explanation:

< BCE + <ECD =180° ( Being sum of supplementary angle which is formed in the given diagram is 180°)

(5x + 10)° + (3x + 2)°= 180°

5x + 10 + 3x + 2 = 180°

5x + 3x + 10 +2 = 180°

8x + 12= 180°

8x = 180°-12°

8x = 168

x= 168/8

x=21°

Now,

<BCE = 5x+10

= 5*21+10

=105+10

=115

<ECD

= 3x+2

= 3*21+2

=65

solve the inequality |4x + 4| < 12

Answers

It’s 8x  unless x has a known value




What is the answer to the problem: 1.234x139.893
and 674.983x278.475

Answers

Step-by-step explanation:

172.627962

187965.890925

Answer:

1.234 × 139.893 = 172.62796

674.983 × 278.475 = 187965.890925

Hope this helps! :)

At what point does the line y = -1/3x + 5 cross the x-axis? Write your answer as an ordered pair. (x, y)

Answers

0=-1/3x+5
1/3x=5
x=15
(15,0)

-3х - y + 4 = 28
2х - 3y+ 2 = 2
3х - 2y + 2 = 2
Solve each system by elimination

Answers

Answer:

x=-72/11 y=-48/11

Step-by-step explanation:

yw !

Collin is collecting rocks for a science project. So far, he has collected 36 rocks, which is 90% of the total he needs. How many total rocks does Collin need for his science project?

Answers

Answer:

40 total rocks

Step-by-step explanation:

100 * 36 / 90 = 40

Answer:

he needs 4 more

Step-by-step explanation:

Answer in about 20 minutes please.
Grant went on an 8-week diet. If he lost at least 1.5 pounds each week, which inequality gives his total weight loss?

A. 8p (less than or equal to sign)-1.5
B. 8p (greater than or equal to sign)-1.5
C. p/8 (less than or equal to sign)-1.5
D. p/8 (greater than or equal to sign)-1.5




Answers

The answer for this answer would be A because

Bhavik bought 3 liters of milk and 5 loaves of bread for a total of $11 A month later, he bought 4 liters of milk and 4 loaves of bread at the same prices, for a total of $10 How much does a liter of milk cost, and how much does a loaf of bread cost?

Answers

Answer:

A liter of milk cost $0.75 and a loaf of bread cost $1.75

Step-by-step explanation:

Let the liters of milk by represented by m

Let the loaves of bread by represented by b

Bhavik bought 3 liters of milk and 5 loaves of bread for a total of $11

3m + 5b = 11...... Equation 1

A month later, he bought 4 liters of milk and 4 loaves of bread at the same prices, for a total of $10

4m + 4b = 10.... Equation 2

Combining the Equations

3m + 5b = 11...... Equation 1

4m + 4b = 10.... Equation 2

We solve using the Elimination method

Multiply Equation 1 by 4 and Equation 2 by 3 to eliminate m

12m + 20b = 44..... Equation 3

12m + 12b = 30....... Equation 4

Substract Equation 4 from Equation 3

8b = 14

b = 14/8

b = $1.75

Solving for m

3m + 5b = 11...... Equation 1

3m + 5($1.75) = 11

3m + $8.75 = $11

3m = $11 -$ 8.75

3m =$ 2.25

m =$ 2.25/3

m = $0.75

Therefore,

a liter of milk cost $0.75 and a loaf of bread cost $1.75

please help me fill out the blanks in the bottom!

Answers

Answer:

2: 67

3:67

4: 113

Step-by-step explanation:

Answer: 67 degrees, 67 degrees, 113 degrees

Step-by-step explanation:

Angle 2: 180-113= 67 degrees

Angle 3: angle 3=angle 2

67 degrees

Angle 4: angle 4=angle 1

113 degrees

What is the exact value of tan(195°)?

Answers

Given:

The value is tan(195°).

To find:

The exact value of tan(195°).

Solution:

We have,

[tex]\tan (195^\circ)=\tan (180^\circ+15^\circ)[/tex]

[tex]\tan (195^\circ)=\tan (15^\circ)[/tex]      [tex][\because \tan (180^\circ-\theta)=\tan \theta][/tex]

It can be written as

[tex]\tan (195^\circ)=\tan (45^\circ-30^\circ)[/tex]

[tex]\tan (195^\circ)=\dfrac{\tan (45^\circ)-\tan (30^\circ)}{1+\tan (45^\circ)\tan (30^\circ)}[/tex]      [tex][\because \tan (A-B)=\dfrac{\tan A-\tan B}{1+\tan A\tan B}][/tex]

[tex]\tan (195^\circ)=\dfrac{1-\dfrac{1}{\sqrt{3}}}{1+(1)(\dfrac{1}{\sqrt{3}})}[/tex]

[tex]\tan (195^\circ)=\dfrac{\dfrac{\sqrt{3}-1}{\sqrt{3}}}{1+\dfrac{1}{\sqrt{3}}}[/tex]

[tex]\tan (195^\circ)=\dfrac{\dfrac{\sqrt{3}-1}{\sqrt{3}}}{\dfrac{\sqrt{3}+1}{\sqrt{3}}}[/tex]

[tex]\tan (195^\circ)=\dfrac{\sqrt{3}-1}{\sqrt{3}+1}[/tex]

Therefore, the exact value of tan(195°) is [tex]\dfrac{\sqrt{3}-1}{\sqrt{3}+1}[/tex].

Answer:

It's C

Step-by-step explanation:

determine the rate of change for the graph​

Answers

Answer:

D) 1.5 centimeters per night

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (0, 30)

Point (20, 60)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{60-30}{20-0}[/tex]Subtract:                       [tex]m=\frac{30}{20}[/tex]Simplify:                        [tex]m=\frac{3}{2}[/tex]Divide:                          [tex]m=1.5[/tex]

1. A box of fruit has 12 plums and 15 bananas. The
cost of each plum is p and the cost of each banana is
25 cents. What expression gives the total cost for all
of the fruit in the box?

Answers

Answer:

12p x (15 x 25) I might not be correct :')

Answer:

12p+15x0.25

Step-by-step explanation:

PLEASE HELP ill give brainlist to the first right answer

Answers

Answer:

how do i say this uh...

Step-by-step explanation:

i wanna say 3 up and 4 across, then alighn. then 2 up and 1 across there.

55 is 40% of what number?
a. 137.5
b. 110
c. 72.7
d. 13.8

Answers

Answer:

Answer Is A

Step-by-step explanation:

Just trust me

Triangles ABC and DEF are similar.
Find the length of segment AC.

Answers

Answer:

4.6 I think

Step-by-step explanation:

If p and a vary inversely and p is 26 when q is 5, determine q when p is equal to 10

Answers

Answer: q = 13

because p and q are inverse

=>  26/10 = q/5

⇔ q = 26/10.5

⇔ q = 13

Step-by-step explanation:

what did he do wrong

Answers

Answer:

He did nothing wrong in this problem.

Step-by-step explanation:

I need help!

And if you can explain that would be good!

Answers

Answer:

meema, papa, and then auntie jo

Step-by-step explanation:

you need to find the slope of each of them and then determine which one is the fastest and which one is the slowest.

meema: 48-24/4-2 = 4/2 = 2

papa: 40-24/5-3 = 16/2 = 8

auntie jo: 45-18/5-2 = 27/3 = 9

im in algebra two so you can trust my answer. happy holidays and stay safe!

Terrance's homework grade was a 72, his project grade was an 80 and his exam grade was an 82.
Homework is worth 10% of the final grade, the project was worth 50%, and the exam was worth 40%.
What was Terrance's final grade?

Answers

Answer:

80%

Step-by-step explanation:

home work = 10%

project grade = 50%

final exam = 40%

so

homework  = 72

100=10

72=?      cross multiply and get 7.2%

project grade = 80

100 = 50

80 = ?   cross multiply and get 40%

final exam = 82

100 = 40

82 = ?     cross multiply and get 32.8%

then add them altogether getting a total of 80%.

Choose the missing step in the given solution to the inequality -2x - 14> -4 + 3x. (1 point)
-2x-14>-4+3x
-5x - 14 >-4
X<-2
O-5x< 10
O-5x>-18
O-5x > 18
O-5x > 10
10. (01.04 MC)

Answers

Answer:

-5x > 10

Step-by-step explanation:

1. We know that when -14 thrown to the right hand side, it will turn to +14

2. +14 -4 = +10

3. Left hand side will remain -5x

4. Hence, -5x > 10

5. and the equation divided by -5, the > sign will change to <

6. x< -2

7. Since you're finding the missing step so it's -5x > 10

Which systems of equations intersect at point A in this graph?

Answers

Y = 4 x - 9

y = - 3 x - 5

I hope this will help you

i looked this up and this is what i got

What is -2 (3x + 12y - 17x - 16y + 4) simplified?

Answers

Answer:

28x + 8y -8 is the answer for the question

Answer:

28x + 8y + 2

Step-by-step explanation:

hope it helps

The cost to rent a rug cleaner is $25 plus $15 per hour at Floors, Inc. At Rugs R Clean the rug cleaner costs $45 plus $7 per hour. Which inequality can be used to show how many hours you need to rent the rug cleaner so that Floors, Inc.'s charges will be same the charges at Rugs R Clean?

Answers

Answer:

25 + 15x < 45 + 7x

Step-by-step explanation:

Given:

Floors, Inc. Fixed charges = $25

Floors, Inc. Variable charges = $15 per hour

R rug clean Fixed charges = $45

R rug Variable charges = $7 per hour

Computation:

Assume number of hour = x

Floors, Inc. total cost = 25 + 15x

R rug  total cost = 45 + 7x

So,

25 + 15x < 45 + 7x

Find the 101st term: 0, 0.1, 0.2, 0.3,

Answers

Answer:

the correct answer is 10.1 on the goggle forms it is 10

Step-by-step explanation:

0.1 multiplied by 101 is 10.1

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The Smiths are sending out a batch of holiday cards. Emily signed of the cards. Then Josh signed of the remaining cards. Tatiana signed 20% of what Josh had left. If there were 75 cards in all, how many cards are left to be signed? There are cards yet to be signed.

Answers

Answer:

You will get 75 cards

Step-by-step explanation:

The answer is 32

Emily signed 2/5 so 75 divided by 5 is 15

15x2 is 30

75-30=45

45 divided by 1/9 is 5

30+5=35

so then 45-5=40

20% of 40 is 8

30+5+8 = 43

75-43=32

The answers are written but I am not sure how they got them. Can someone please explain it to me? Thank you! (Worth 50 points :))

Answers

Answer:

x = 2.4

I'm not sure how the answer is 4.5 but I'm pretty sure this is right unless I'm missing something

Step-by-step explanation:

So we need to find how much shorter is the short line compared to the longer one. Basically we need a scale factor, for this we can use the side lengths already given to us, 10 and 15. So u can choose either enlarge the short line or shorten the longer one.

If u want to enlarge the short line then do 15/10 which is 3/2 which u will then multiply the shorter line's equation with it, if u want to shorten the longer line then do 10/15 which is 2/3 and multiply the longer lines equation with it.

I'll be using the 3/2 one cause why not:

3/2(x + 6) = 4x + 3

3/2x + 18/2 = 4x + 3

multiply the entire equation with 2 to make 3/2 no longer a fraction

(3/2x + 18/2 = 4x + 3)2

6/2x + 18 = 8x + 6

3x + 18 = 8x + 6

subtract 18 from both sides

3x = 8x - 12

subtract 8x from both sides

-5x = - 12

divide -5 from both sides

x = 2.4

U can input x into the equation to check:

3/2(2.4 + 6) = 4(2.4) + 3

12.6 = 12.6, it's right

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