What is the perimeter of this polygon?
a
28 units
26 units
22 units

24 units

Answer:

1 +6 x + 12 x 2 + 8x 3

Explanation:

We must use our knowledge of the binomial expansion:

Method 1:

We can use:

(

x

+

1

)

n

=

1

+

n

x

+

n

(

n

−

1

)

2

!

x

2

+

n

(

n

−

1

)

(

n

−

2

)

3

!

x

3

+

...

Substituting  

n

=

3

and  

x

for  

2

x

⇒

(

2

x

+

1

)

3

=

1

+

(

3

⋅

2

x

)

+

3

⋅

2

2

!

⋅

(

2

x

)

2

+

3

⋅

2

⋅

1

3

!

⋅

(

2

x

)

3

=

1

+

6

x

+

12

x

2

+

8

x

3

Method 2:

We can use:

(

A

+

B

)

n

=

A

n

+

(

n

1

)

A

n

−

1

B

1

+

(

n

2

)

A

n

−

2

B

2

+

...

Letting  

A

=

2

x

and

B

=

1

for this circumstance:

(

2

x

+

1

)

3

=

(

2

x

)

3

+

(

3

1

)

(

2

x

)

2

(

1

)

+

(

3

2

)

(

2

x

)

1

(

1

)

2

+

(

3

3

)

(

2

x

)

0

(

1

)

3

=

8

x

3

+

12

x

2

+

6

x

+

1

Step-by-step explanation:

Answer:

Given - A rectangle whose area is 1 2/5 m^2

- length is 4/5 m

To find - Length of rectangle

Solution -

1 2/5 = 7/5 m^2

Let the length be X

Area of rectangle= Length × Breadth

7/5 = X × 4/5

7/5 × 5/4 = X

7/4 = X

Length of rectangle= 7/4

Answer:

ANSWER IS 15x20 Please make meh brainlist

Answer:

11

Step-by-step explanation:

every ratio is been multiplied for eleven si if we know this we can tell that

1 times 11= 11

Answer:

11

Step-by-step explanation:

Just times the things by 11, 5 times 11 is 55, 10 times 11 is 110, and 20 times 11 is 220, so 1 times 11 is 11 so 11 is the answer.

CAN I GET BRAINLLEST NOW!!!!!!!!!!!?????????????

PLEASE  

(○’ω’○)⊙_⊙-_-||囧rz◑﹏◐(?_?)(T_T)O_o::>_<::^O^-_-z(ToT)o_O

Answer:

The Commutative Properties of Addition and Multiplication ... in an addition expression can be grouped in different ways without changing the sum. ... Mathematicians often use parentheses to indicate which operation should be done ... Rewrite 7 + 2 + 8.5 – 3.5 in two different ways using the associative property of addition.

Step-by-step explanation:

I learned this and i still know it. I dont have a explanation

Answer:

Subtract 3.6 from both sides.

Step-by-step explanation:

Given

[tex]x + 3.6 = -1.7[/tex]

Required

Solve in one step

There are two ways to go about it.

1. Collect Like Terms

[tex]x + 3.6 = -1.7[/tex]

3.6 and -1.7 are like terms, so the equation becomes

[tex]x = -1.7 - 3.6[/tex]

[tex]x = -5.3[/tex]

2. Subtract 3.6 from both sides

[tex]x + 3.6 = -1.7[/tex]

This becomes

[tex]x + 3.6 - 3.6 = -1.7 - 3.6[/tex]

[tex]x = -5.3[/tex]

Hence, the last option answers the question.

Answer:

Option 2and 5 are correct.

Step-by-step explanation:

-Add -3.6 to both sides

-Subtract 3.6 from both sides

Answer:

The parent function is: y = x

First, here we have two types of transformations, and we could define them in a general way as:

if we start with a function f(x)

Vertical dilation/contraction: A vertical dilation/contraction of scale factor A (A is always positive) is written as:

g(x) = A*f(x)

Vertical translation:

We can write a vertical translation of A units upwards as:

g(x) = f(x) + A

And a vertical translations of A units down can be written as:

g(x) = f(x) - A.

In this case, the transformations are:

first, a dilation of scale factor 8.

Then a translation down of 21 units

then another translation down of 7 units.

y = 8*X - 21 - 7

y = 8*x - 28.

As this is a linear equation, there are no axis of symmetry, we only could have a line of symmetry along the same line y = 8*x - 28

Again, as this function is a linear equation there is no vertex.

Answer:

4 x ^2 ( x + 3 )

Step-by-step explanation:

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.

Answer:

-15 - 5 i

Step-by-step explanation:

Answer:

−15 − 5i

Step-by-step explanation:

The image below shows step-by-step on how to solve it.

Hope this helps! :)

Answer:

x²-3x=-10

Step-by-step explanation:

x²-3x+0=10

x²-3x=-10

Answer:

The slope is -2

Step-by-step explanation:

(−4,7);(2,−5)

(x1,y1)=(−4,7)

(x2,y2)=(2,−5)

m= y2−y1 /x2−x1

−5−7 /2−4

−12 /6

−2

Answer:

21

Step-by-step explanation:

9+11+|-1|

9+11+1

21

Answer: 21

Step-by-step explanation: the absolute value of any number will be positive so the absolute value of -1 is one. After that all you have to do it’s add 9 and 11 which is 20 + 1 which is 21

Hope this helped

Answer:

65 miles

Step-by-step explanation:

Answer:

65MPH (or 65 miles)

Step-by-step explanation:

I used a proportion:

487.5MI/7.5HR = ?MI/1HR

(mi/hr = mi/hr)

cross multiply:

487.5 x 1 = 487.5

then divide:

487.5 divided by 7.5 =

65 miles

Hope this helps!

Bri <3

Answer:

C

Step-by-step explanation:

The table has 2 inputs that are the same (-1) but have different outputs (7 and 1). The list of coordinates also has 2 points with the same x - axis but different y values. For the graph you could use the vertical line test. If you put the line on -1 on the x-axis is goes through 2 points. The indicates that it is not a function.

Hope this helsp. Pls give brainliest.

Answer:

90/125*100=9000/125

9000/125=72

72%

Answer:

92.7?????

Step-by-step explanation:

Answer:

23 or 22....

Step-by-step explanation:

because he got 3 questions wrong sooooo yeah... ya✋

Answer:

The student had a total of 25 questions on his test.

Step-by-step explanation:

Given that:

Number of questions answered correctly in the test = 20

Percentage scored in the test = 80%

Let,

x be the total number of questions on test.

We know that 80% of the test is 20 questions, therefore,

80% of x = 20

[tex]\frac{80}{100}x=20\\0.8x=20[/tex]

Dividing both sides by 0.8

[tex]\frac{0.8x}{0.8}=\frac{20}{0.8}\\x=25[/tex]

Hence,

The student had a total of 25 questions on his test.

Answer:

That is a hard question

Step-by-step explanation:

Answer:

x=28

Step-by-step explanation:

-2(3x-9)+5x =-10

now we times -2 to to the inside of the parenthese

giving us

-6x+18 +5x= -10

add like terms

add -6x and 5x

-1x+18=-10

now we add like terms of the constants

minus 18 on  both sides

-1x=-28

now divide by -1

x = 28

Answer:

x = 28

Step-by-step explanation:

First, remove the parentheses by distributing -2.

-6x + 18 + 5x = 10

Next, collect the like terms.

-x + 18 = -10

Next, move the constant to the right-hand side and change its sign.

-x = -10 - 18

Next, calculate the difference

-x = -28

Lastly, change the signs on both sides of the equation.

x = 28

These are the steps to answer this equation.

Answer:

25x + 5 equals 130, x=5,   (2) x= 6  10x=60 degrees

Step-by-step explanation:

Answer:

4.

Step-by-step explanation:

32.83 + 0.8 = 33.63

37.63 - 33.63 = 4.

Answer:

The answer is the 3rd option/C, 4

Step-by-step explanation:

ME SMART

Answer: (v + 7)(v -3)

Step-by-step explanation:

(v +7)(v -3)

v x v = v^2

v x -3 = -3v

7 x v = 7v

7 x -3 = -21

v^2 -3v +7v -21 = v^2 +4v -21 = 0

Answer:

The answer is (v - 3)(v + 7).

Step-by-step explanation:

First, you have to elaborate it :

v² + 4v - 21 = 0

v² - 3v + 7v - 21 = 0

Next, you have to collect like terms :

v(v - 3) + 7(v - 3) = 0

(v - 3)(v + 7) = 0

Answer: Check below

Step-by-step explanation:

Okay so the Pythagorean Theorem was made by some old guy and the formula is a^2+b^2=c^2. You ALWAYS have to subtract the leg of the triangle when your finding a leg. You squareroot the square of the two legs if your finding the hypotnuse. The Theorem can be used to find any side of the triangle ONLY IF its a right triangle. An adult might use it in real life like when your an architect trying to find how much material you should use to make something thats in the shape of a right triangle.

Ps. Sorry if there's a bunch of grammar mistakes since this is kinda rushed

Answer:

inverse operation(s)

Step-by-step explanation: