18×2+12×2=explicación paso a pasó ​

Answer:

2x² +7x - 4

Step-by-step explanation:

(2x-1)(x+4)

2x² + 8x - x - 4

simplify:

2x² +7x - 4

Answer:

Answer

is B

10√2

Step-by-step explanation:

is: √200

Simplifying the given expression, we get:

200 = 2 x 2 x 2 x 5 x 5

⇒ 200 = (2)² x (5) ² x 2

Answer:

b

Step-by-step explanation:

Answer:

A) - 13 < x < - 1

Step-by-step explanation:

1) Rewrite the inequality without the absolute value.

[tex] - 6 < x + 7 < 6[/tex]

2) Subtract 7 from the whole equation.

[tex] - 6 - 7 < x < 6 - 7[/tex]

3) Simplify.

[tex] - 13 < x < - 1[/tex]

Therefor, the answer is the first option.

Answer:

A) –13 < x < –1

Step-by-step explanation:

|x + 7| < 6

Separate into possible cases

[tex]x + 7 < 6 \\x +7 \geq 0[/tex]

Solve the inequalities

[tex]x < - 1, x \geq -7\\x > -13, x < -7[/tex]

Find the intersections

[tex]x = (-7, -1)\\x = (-13, -7)[/tex]

Find the union

Answer: A) –13 < x < –1

Answer:

A

Step-by-step explanation:

In order to multiply a whole number by a fraction, you can write the whole number in fraction form. -12 can also be written as    [tex]\frac{-12}{1}[/tex].

Now you can write out    [tex]\frac{-12}{1}[/tex]  ×  [tex]\frac{20}{21}[/tex]  

Multiply the numerators by each other and the denominators by each other to create one fraction.

-12 × 20 = -240     and 1 × 21 = 21

  [tex]\frac{-12}{1}[/tex]  × [tex]\frac{20}{12}[/tex]   = [tex]\frac{-240}{21}[/tex]      and now you can simplify the fraction by finding the greatest common factor of the denominator and numerator.   -240 and 21 have the greatest common factor of 3. Divide each side by 3 and get the fraction -80/7

Answer:

x = -18

Step-by-step explanation:

Distribute: 3*5x = 15x ; 3*-6 = -18 ; 6*2x = 12x ; 6*-12 = -72

15x - 18 = 12x - 72

Add 18 to both sides: 15x = 12x - 54

Subtract 12x from both sides: 3x = -54

Divide both sides by 3: x = -18

Answer:

x= 17.666666...

Step-by-step explanation:

3(5x - 6) = 6(2x - 12)

(3 times 5x , 3 times  -6)             (6 times 2x, 6 times - 12)

15x-18 = 12x -72           (multiply insides)

-12x       -12x              (remove 12x from right side)

3x-19 = -72                (product)

   +19 = +19                (add 19 left side to remove it)

3x = 53                        (product)

x = [tex]\frac{53}{3}[/tex]                              (divide)

x= 17.666666...                (answer)

x = 17.67                     (if simplify)

a^2=b^2+c^2

×=11; a^2=(6×11+7)^2+(3×11)^2

a^2=6418

so the length is estimately 80.11

Answer:

Monomials mean one

binomials mean two

trinomials mean three

Step-by-step explanation:

mono means one

bino means two

Trump means three

Answer:

monomial, binomial, and trinomial is a polynomial. They are special members of the family of polynomials and so they have special names. We use the words ‘monomial’, ‘binomial’, and ‘trinomial’ when referring to these special polynomials and just call all the rest ‘polynomials’.

polynomial—A monomial, or two or more monomials, combined by addition or subtraction

monomial—A polynomial with exactly one term

binomial— A polynomial with exactly two terms

trinomial—A polynomial with exactly three terms

Answer:

[tex] a_{n} = (6){3}^{n - 1} [/tex]

Step-by-step explanation:

6, 18, 54

First, recognize that this is a geometric sequence. To find the common ratio, divide the f

second term by the first term.

18/6 = 3

Check this with the second and third term.

54/18 = 3

Your common ratio is 3.

An explicit formula for a geometric equation is:

[tex] a_{n} = a_{1} {r}^{n - 1} [/tex]

We know the first term is 6 and the common ratio is 3. Plug in these values.

[tex] a_{n} = (6) {3}^{n - 1} [/tex]

This is your formula.

Hope this helps!

Answer:

54( 1/3)n-1

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

the red height is 48 by pythagorean, and by 3:4:5 similarity x=64.

Answer:

3x + y^3 z

3×x+y×y×y×z

there is common 1

1(3×x+y×y×y×z)

factor =1,&(3x+y³z)

Answer:

It should be the last one: 57,905.84 inches

Step-by-step explanation:

Answer:

the table part is easy, just copy the number on the left and put the letter written on top ( for a it should be 2a, 4a, 6a and so on)

ii - 3

iii - 1/6

iv - 1/3

Answer:

solution,

let width of the rectangle be x then,

length(l)=4x

Area(A)=25l

now,

area of rectangle = 4x×x

Step-by-step explanation:

in 2nd step one x cancel another in opposite side of =

Answer:

The cost of 8 balls is Rs $ 120.

Step-by-step explanation:

Given that 15 balls cost Rs $ 225, to determine the cost of 8 balls it is necessary to perform the following mathematical calculation:

(225/15) x 8 = X

15 x 8 = X

120 = X

Thus, the cost of 8 balls is Rs $ 120.

Answer:

1000

Step-by-step explanation

200+200=400

so

500+500=1000

Answer: 472392

Step-by-step explanation:

the pattern is three times the last number e.g.

8x3=24

24x3=72

72x3=216

Then to find the 11th term you continue this pattern.

5=648

6=1944

7=5832

8=17496

9=52488

10=157464

11=472392

Answer:

emmm we cant graph

Step-by-step explanation:

there   isnt one. just go from the y intercept and go 2 up and 5 left.

Answer:

3

Step-by-step explanation:

Its 3 because the volume is 24. the BxLxH is equal to 24. we know the first 2 numbers 4 and 2. 4x2 is 8. 24 divided by 8 is 3. The answer is 3.

Answer:

The Area of a circle is

[tex]\pi {r}^{2} [/tex]

Therefore the Area of Circle A is

[tex]\pi {8}^{2} \\ 201.06[/tex]

Area of Circle B is

[tex]\pi {10}^{2} \\ 314.16[/tex]

Circle C

[tex]\pi {14}^{2} \\ 615.75[/tex]

Circle D

[tex]\pi {13}^{2} \\ 530.93[/tex]

Answer:

$522.50

Step-by-step explanation:

To find the price, multiply 950 by 0.55

950(0.55)

= 522.5

So, the sale price will be $522.50

Answer:7y=-4x+1

Step-by-step explanation:

y=mx+c

-5=-4/7(-9)+c

c=1/7

y=-4/7x+1/7

7y=-4x + 1