Write a proof. Given x - 2 = 3(x - 4) Prove x = 5

f(x)=2x^2+5/x-2

[tex]\\ \rm\longmapsto f(6)=\dfrac{2(6)^2+5}{6-2}[/tex]

[tex]\\ \rm\longmapsto \dfrac{2(36)+5}{4}[/tex]

[tex]\\ \rm\longmapsto \dfrac{72+5}{4}[/tex]

[tex]\\ \rm\longmapsto \dfrac{77}{4}[/tex]

Answer:

7.2

Step-by-step explanation:

The points shown form a right angle triangle along the x axis so the distance is the hypotenuse. So

a**2 + b**2 = c**2

4**2 + 6**2 = c**2

16 + 36 = c**2

52 = c**2

52**(1/2) = c

7.2 = c

Answer:

x = 5, y = 15

Step-by-step explanation:

Use substitution to solve the system of equations.

We'll replace y in x + y = 20 with 3x, since y = 3x.

x + 3x = 20

Combine like terms

4x = 20

Divide by 4 on both sides

x = 5

Now to solve for y (don't forget!)

We'll plug x = 5 back into one of the original equations

y = 3(5) = 15

Check first equation:

15 = 3(5)

15 = 15

Check second equation:

5 + 15 = 20

20 = 20

Answer:

The best deal

Step-by-step explanation:

First of all what company is that?

And what type deal..?

Hi :)

f(r) = 3.14r2

f(7) = 3.14(7)(2)

f(7) = 43.96

Answer:

Yes it is

Step-by-step explanation:

when you add up all parts of a triangle they are equal to 180

Answer:

yes

Step-by-step explanation:

the sum of interior angles of a triangle is = to 180 degrees.(It's a geomatory theorem)

Answer:

x = 10

6x - 6 = 54

Step-by-step explanation:

The hypotenuse of both triangles are 63 and 6x - 6; the second longest sides are 49 (greater than 35) and 42 (greater than 30).

So our proportion:

63/(6x-6) = 49/42

Cross multiply

63*42 = 49*(6x-6)

2646 = 294x-294

2940 = 294x

x = 10

Double-check:

63/(6*10 - 6) = 49/42

63/(60 - 6) = 49/42

63/54 = 49/42

7/6 = 7/6

6x - 6 = 6(10) - 6 = 60 - 6 = 54

Answer:

38

Step-by-step explanation:

Three consecutive even integers can be represented by x, x+2, x+4.  The sum is 3x+6, which is equal to 108.  Thus, 3x+6=108.  Solving for x yields x=34.  However, the question asks for the largest number, which is x+4 or 38.  Please make sure to answer what the question asks for!

You could have also plugged in the answer choices.  If you plugged in 38 as the largest number, then the previous even integer would be 36 and the next previous even integer 34.  The sum of 34, 36, and 38 yields 108.

Answer:

I'm about to use the lmgtfy card

Answer:

48 us cups = 3 us cups

Plz mrk me brainliest

Answer:

1.

[tex]( - 2) - 8 \\ = - 10[/tex]

2.

[tex]2 - ( - 6) \\ = 2 + 6 \\ = 8[/tex]

3.

[tex]( - 7) + 1 \\ = - 6[/tex]

4.

[tex]( - 1) - 2 \\ = - 3[/tex]

5.

[tex]( - 4) + 4 \\ = 0[/tex]

6.

[tex]8 + ( - 7) \\ = 1[/tex]

7.

[tex]( - 1) + 6 \\ = 5[/tex]

8.

[tex]( - 2) + ( - 6) \\ = - 2 - 6 \\ = - 8[/tex]

Step-by-step explanation:

[tex](x - 5)(x - 5) \\ {x}^{2} - 5x - 5x + 25 \\ {x}^{2} - 10x + 25[/tex]

I hope it makes sense

:)

Answer:

95

Step-by-step explanation:

add 50,45

Hay dos posibles definiciones:

(Lógica) Proposición Abierta con Equivalencia que contiene Elementos tal que esta sea Verdadera.

(Algebraica) Expresión de Igualdad entre un Conjunto de Variables.

Observación: A nuestro modo de ver el enunciado se halla incompleto y consideramos que la solución está en definir el alcance del verbo "recuperar", el cual para estos efectos definimos como "retomar y describir". Por otra parte, se reescribe el concepto como sigue:

Recupera el concepto de ecuación.

Matemáticamente, podemos sacar dos Definiciones al término Ecuación, las cuales son descritas a continuación:

1) Proposición Abierta con Equivalencia que contiene Elementos tal que esta sea Verdadera.

2) Expresión de Igualdad entre un Conjunto de Variables.

Véase esta pregunta relacionada con Ecuaciones: https://brainly.com/question/21496108

Answer:

4x° = (80 - x)°

Step-by-step explanation:

These angles are known as vertical angles. Vertical angles are equal to one another.

Answer:

64

Step-by-step explanation:

4x=80-x

16×4=64

80-16=

Step-by-step explanation:

a 9/2 is the correct answer.

Answer:

9/2

Step-by-step explanation:

[tex]4\frac{1}{2} = \frac{(2*4)+1}{2} \\=\frac{9}{2}[/tex]

Answer:

Tens: 800

Hundredths: 800

Step-by-step explanation:

It's all connected.

Answer:

Answer:

Solution given

5(1+s)=9s+6

distribute

5+5s=9s+6

subtract both side by 5s

5+5s-5s=9s-5s+6

solve like terms

5=4s+6

subtract both side by 6

5-6=4s+6-6

-1=4s

divide both side by 4

-1/4=s

Answer:

[tex]s=-\frac{1}{4}[/tex]

[tex]s=-0.25[/tex]

Step-by-step explanation:

[tex]5\left(1+s\right)=9s+6[/tex]

Apply distributive law:-

[tex]5\left(1+s\right)[/tex]

[tex]=5+5s[/tex]

[tex]5+5s=9s+6[/tex]

Now, Subtract 5 from both sides :-

[tex]5+5s-5=9s+6-5[/tex]

[tex]5s=9s+1[/tex]

Subtract 9s from both sides:-

[tex]5s-9s=9s+1-9s[/tex]

[tex]-4s=1[/tex]

Divide both sides by -4:-

[tex]\frac{-4s}{-4}=\frac{1}{-4}[/tex]

[tex]s=-\frac{1}{4}[/tex]

OAmalOHopeO

Answer:

5400

Step-by-step explanation:

so 90% of 850 is 765 (0.90x850)

765 is 10 years

so 1 year is 765/10 = 76.5 per year. So 76.5x59 = 4,513.5 add the initial ammount and you got 5,363.5 in the nearest hundredth you get 5400

Answer:

171997.69

Step-by-step explanation:

See photo for explanation

Answer:

the answer is 14

Step-by-step explanation:

10 pluss the 4 makes 14

Answer:

The distance between 10 and -4 is 14

Step-by-step explanation:

Because 10 plus 4 is 14 so the answer is 14,Hope it help you.

Answer:

I think -3.5 is the right answer

Answer:

through: (-4, -5), slope = 0)

Step-by-step explanation:

gd afternoon

have a lovely day

Answer:

I would estimate $30.52

Step-by-step explanation:

If you subtract his original total from the beginning from what he had spent on shoes, you would get the amount of what he has left.

Answer:

12:43

Step-by-step explanation:

Answer:

The answer is no

Step-by-step explanation:

Is because if we divide 136 by 5 is gonna give us 27.2 and we don’t want the decimal. So we can’t divide 136 by 5. Another method is you can you at the last digit in this case is 6, six is not in the table of 5 so always the answer is going to be in decimal. 136[tex]:[/tex]5= 27.2

Answer:

2160 - t

Step-by-step explanation:

1800(1.2)-t

2160 - t

Answer:

44

Step-by-step explanation:

n = pattern number

9n - 1 = number of tiles

Number 5 = 9n - 1

= 5 x 9 - 1

= 45 - 1

= 44

The pattern will have 54 tiles after the fifth day

To determine the pattern, let's find the difference between the number of tiles on consecutive days:

Difference between Day 2 and Day 1: 8 tiles - 0 tiles = 8 tiles

Difference between Day 3 and Day 2: 20 tiles - 8 tiles = 12 tiles

Difference between Day 4 and Day 3: 35 tiles - 20 tiles = 15 tiles

Notice that the difference between the number of tiles on consecutive days is increasing by 4 each time (8, 12, 15).

Now, let's use this difference to find the number of tiles after the fifth day:

Difference between Day 5 and Day 4: 15 tiles + 4 tiles = 19 tiles

Number of tiles after the fourth day: 35 tiles

Number of tiles after the fifth day: 35 tiles + 19 tiles = 54 tiles

So, the pattern will have 54 tiles after the fifth day.

Learn more about pattern at https://brainly.com/question/13628676

#SPJ3

Step-by-step explanation:

−1,

2

−1

]∪[0,

2

1

]∪{1}

For f to be defined 2{x}

2

−3{x}+1≥0

({x}−1)(2{x}−1)≥0

⇒{x}∈(−∞,

2

1

)∪[1,∞)

But we know, {x}∈[0,1)

Thus {x}∈[0,

2

1

)→(1)

Also given that x∈[−1,1]

Hence required domain is [−1,−

2

1

]∪[0,

2

1

],∪{1}

Note {−x}=1−{x}

Answer: It mentions how they  fear the authority government, also I believe u meant "Power of fear"

Step-by-step explanation: