If a pentagon is rotated 100 degrees will it coincide with itself?

Answer:

(4x+1)= 81

Step-by-step explanation:

4x+1= 81

4x= 81 - 1

4x= 80

x= 80/4

x= 20

Answer:

4x+1=81(vertically opposite angles)

x=20 degrees

Step by step explanation:

4x+1=81

4x   =81-1

  4x=80

     x=20

Answer:

77 cm²

Step-by-step explanation:

We know that

Area of trapezium = ½ (a + b) × h

Area = ½ × (10 + 12) × 7

Area = ½ × 22 × 7

Area = 11 × 7

Area = 77 cm²

Length of parallel sides = 10 cm and 12 cm

Height = 7 cm

Area of trapezium

[tex]\begin{gathered} {\underline{\boxed{ \rm {\red{Area \: of \: trapezium \: = \: \frac{1}{2} \: \times \: (a \: + \: b) \: \times \:Height }}}}}\end{gathered}[/tex]

Where ,

[tex] \begin{cases} \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \: \frac{1}{2} \: \times \: (10 \: + \: 12) \: \times \:7 \\ \\ \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \: \frac{1}{2} \: \times \: 22\: \times \:7 \\ \\ \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \: \frac{1}{ \cancel2} \: \times \: \cancel{22} \: ^{11} \: \times \:7 \\ \\ \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \:11 \: \times \: 7 \\ \\ \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \:77 \: {cm}^{2} \end{cases}[/tex]

Answer:

there are 4 90 degree angles formed

4. Think of a lower t, there are 4 equal angles

Step-by-step explanation:

Answer:

2x+1

Step-by-step explanation:

Hello :D

x = 6

y = 4

3x + y

3x = 18

y = 4

18 + 4 = 22

Hope this helps

Answer:

This should be all of them

Step-by-step explanation:

Answer: 30 goldfish

Step-by-step explanation: Bruce has 18 goldfish. If Isabelle has 5 times as many goldfish as Bruce she will have 18*5=90 goldfish. If Arlene has 1/3 times as many goldfish as Isabelle she will have 90/3=30 goldfish.

Answer:

3 is the slope of the line

Step-by-step explanation:

2 is the y-intercept:)

Hope I helped a little! I wish you lcuk with all my heart!

Answer:

simplified: -18x + 14 + [tex]\frac{9}{x}[/tex]

Step-by-step explanation:

Answer:

Below.

Step-by-step explanation:

Number 1 is arithmetic . The common difference (d) = 3.6.

Number  3    ..    ..    ..       .... .. ....................................  d = -4.

Number   4 ........................................................................ d = 6.

Answer: A C D (in green in file)

Step-by-step explanation:

Here is a excel file that do the job.

Data are in lines 1 and 2.

there are only 2 formula.(in B1 and B2)

Others cells are just copied (incrementiel)

Answer:

Step-by-step explanation:

The equation has to be

8x + 20 = 148                  Subtract 20 from both sides

8x = 148 - 20                  Combine

8x = 128                          Divide by 8

x = 128/8                        

x = 16

Answer:

Answer: -30

Step-by-step explanation:

[tex] {(8 - 10)}^{2} - 30 \div 5 \times 6 + 2[/tex]

BODMAS

let's first solve the bracket:

[tex] = {( - 2)}^{2} - 30 \div 5 \times 6 + 2 \\ = 4 - 30 \div 5 \times 6 + 2[/tex]

then let's divide:

[tex] = 4 - (30 \div 5) \times 6 + 2 \\ = 4 - 6 \times 6 + 2[/tex]

then let's multiply:

[tex] = 4 - (6 \times 6) + 2 \\ = 4 - 36 + 2[/tex]

simplify:

[tex] = - 30[/tex]

Answer:

Putting x= 2

[tex]( - 5) \times 2 = - 10 \\ - 10 = - 10[/tex]

putting x = -2

[tex]( - 5) \times ( - 2) = - 10 \\ 5 \times 2 = - 10 \\ 10 = - 10 \\ this \: is \: not \: correct \: equation[/tex]

putting x = 50

[tex]( - 5) \times 50 = - 10 \\ - 250 = - 10 \\ this \: is \: also \: not \: correct \: equation[/tex]

so, x = 2 is applicable.

Answer:

  A) 2x^2 -12x +13

  B) terms {2x^2, -12x, 13}; coefficients {2, -12, 13}; constants {13}

Step-by-step explanation:

A) Using the distributive property, we get ...

  -2x +3 +2x^2 -10x +10

  = 2x^2 -12x +13

__

B) Terms: {2x^2, -12x, 13}

  Factors: There are no overall factors. Each term has factors ...

     2x^2 has factors {2, x, x}

     -12x has factors {-1, 2, 2, 3, x}

     13 has factors {1, 13} (it is prime)

  Coefficients: {2, -12, 13} . . . see note below

  Constants: {13}

_____

Additional comment

We have listed the prime factors of each term, any subset can be multiplied to be a factor of the term. For example, 2·3 = 6 is a factor of -12x.

Please note that some sources do not consider a constant (13) to be a coefficient. You will need to refer to your curriculum materials to see what your author says about that.

Answer:

43/40x^3-5x^5+2

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

(2x-1)+(x+17)+(4x-15)=106º

2x+x+4x=7x

-1+17-15=1

7x+1=106º

         -1

7x=105º

/7     /7

x= 15

Answer:

The expression for the total cost is 20 + 3 × 4.95.

Step-by-step explanation:

BOOKS Akira bought one new book for $20 and three used books for $4.95 each. Write and evaluate an expression to find how much money the books cost. SOLUTION: To find the cost of the used books, multiply the price by how many Akira purchased.

[tex] \large \mathfrak{Solution : }[/tex]

Therefore, the correct Answer is 4th

Answer:

34 degrees

Step-by-step explanation:

the verical angle theorem says any two angles opposite of each other from intersecting lines have the same angle

Answer:

Step-by-step explanation:

We can write 36 as a product of prime factors: 36 = 2² × 3². The expression 2² × 3² is said to be the prime factorization of 36