Maurício foi apresentar a solução dessa equação no quadro 7 x + 4 = 19 7x = 19 - 47 X = 15x = 15 - 7 e x - x = 8 ele cometeu um erro na resolução Qual foi resolva a equação corretamente

Answer:

We have,

side= a

= 8 cm

We know that the area of the regular hexagon

[tex] = \frac{3 \sqrt{3} }{2} {a}^{3} [/tex]

[tex] = \frac{3 \sqrt{3} }{2} {8}^{2} [/tex]

[tex] = \frac{3 \sqrt{3} }{2} \times 64[/tex]

[tex] = 96 \sqrt{3} \: \: {cm}^{2} [/tex]

Step-by-step explanation:

Hope it is helpful...

Answer:

5x-7

Step-by-step explanation:

Answer: derive function f(x) and you get f'(x) = 4x+ 8

Step-by-step explanation: Derivation gives a function which tells

Is original function increasing or decreasing.

When f'(x) = 0, it means that original function of second degree

Changes its direction. Now you solve 4x+8 = 0 and x=-2.

That's the minimum point in his case.

Answer:

745.52

Step-by-step explanation:

Answer:

A = b x h

P = b + b + h + h

A = 84 in

P = 38 in

a= 84

p= 38

Like a neighbor, state farm is there.

Answer:

one solution

one solution

Answer:

r≈14.01cm

Step-by-step explanation:

r=C

2π=88

2·π≈14.00563cm

Sorry if im wrong.

Answer:

92.75

Step-by-step explanation:

tenth spot is to right of decimal round up or down depending on the next number

Answer:

10

Step-by-step explanation:

Answer:

*i think* 10 boys and 30 girls

Step-by-step explanation:

this is because there are already 10 means, and if you multiply 10 by 3, you get 30

10+30=40

lmk if you have questions!

but if you want the equations then

b + b X 3=40

i think this is what your teacher means

Answer:

D. 9b

Step-by-step explanation:

4b + 5b is essentially 4 + 5

so 9b

Answer:

Step-by-step explanation:

1. Monomial times Monomial

2. Binomial times Binomial

3. Binomial times Trinomial

4. Monomial times Trinomial

5. Binomial times Monomial

Answer: (The first number will be for the side on the left and the second will be for the on the right it matches with) (1, 3) (2, 1) (3, 5) (4,2) (5, 4)

Step-by-step explanation:

The nomial number(prefix) is determined by how many terms are in a parentheses. For example, The first one (3z) (9z) has one term bc 3z is one tern and 9z is one term so they are both monomials but b-1 would be a binomial because it has two terms so knowing that should explain my answers

Answer:

z° = 135°

Step-by-step explanation:

The sum of angles in an octagon

=> Sum = 180°(8 - 2)

            = 180° × 6

            = 1080°

∴Each interior angle = [tex]\frac{1080}{8}[/tex]°

                                  = 135°

∴z° = 135°

Hope this helps

Answer:

$13.50

Step-by-step explanation:

So excluding tax and tip, let's find the cost of the meal.

$6.70 + $1.95 + $2.35 =  $11.00

Now let's add the 4.5% tax. We do this by adding 4.5% of 11.00 to 11.00

$11.00 + 0.045($11.00) = $11.495 which rounds to 11.50

Now the tip is 2 dollars, so add 2 to 11.50 to get $13.50

Answer:

P = 40 m

A = 100 m²

Step-by-step explanation:

(10√2)² = 200

200/2 = 100

side length = √100 = 10 m

P = 10 x 4 = 40 m

A = 10 x 10 = 100 m²

Answer:

answer is D

Step-by-step explanation:

too broad on the graph should start from 0-100

Answer:

the answer is d

Step-by-step explanation:

Answer:

1/2 pint or 0.5 pint

Step-by-step explanation:

1 pint = 2 cups

(1 pint)/2 = 1 cup

1/2 pint = 1 cup

1/2 pint or 0.5 pint

Answer:

760ft

Step-by-step explanation:

First you find the volume of the rectangle thing :)

so 14 times 19 times 2 = 532ft

than you need to do the triangle so 20 - 14 (for base length) is 6

so 19 times 6 times 2 = 228ft

now you ad them, so 532 + 228 = 760

6 families dinned out 4 or more time per week

3 families dinned out less than 2 times per week

Now you must subtract the #'s

6 - 3 = 3

3 more families dined out 4 or more times per week.

Answer:

c. 14

Step-by-step explanation:

12 - 5 = 7

needs to be a multiple of 7 which 14 is

Answer:

x = 2, use formula of area of triangle by talking x as base and 5 as height.

Answer:

B

Step-by-step explanation:

Prime Factorization involves breaking down a number into prime numbers (aka numbers that can only be divided by itself and 1)

36

9  x  4

(3x3) x (2x2)

Hope that helps!

Lets multiply all the choices so we can see if it all multiplied is 36.

A) 2 • 2 • 2 • 3

   4 • 2 • 3

   8 • 3

   24

B) 2 • 2 • 3 • 3

   4 • 3 • 3

   12 • 3

   36

C) 2 • 3 • 3 • 3

   6 • 3 • 3

   18 • 3

   53

D) 1 • 2 • 2 • 3

   2 • 2 • 3

   4 • 3

   12

The answer is B! I hope this helps.

Answer:

13.  PS = 21.37

14.  68.74°

Step-by-step explanation:

13.   QS/39 = tan 28

      QS = 39 tan 28

sin 76 = QS/PS

PS sin 76 = QS

PS = QS/sin 76

    = 39 tan 28/sin 76

    = 21.37

14.    tan 47 = BD/18

        BD = 18 tan 47

        cos CDB = 7/BD

                        = 7/(18 tan 47)

         m∠CDB = arccos [7/(18 tan 47)

                        = arccos .362644...

                        =  68.74°

The trigonometry we get  PS = 21.37 and  m∠CDB=  68.74°

Trigonometry finding sides and angles

We have to find

The value of tan is opposite side/adjacent side

Therefore we get

13.   QS/39 = tan 28

QS = 39 tan 28

sin 76 = QS/PS

PS sin 76 = QS

PS = QS/sin 76

PS = 39 tan 28/sin 76

PS = 21.37

14.    tan 47 = BD/18

 BD = 18 tan 47

 cos CDB = 7/BD

cos CDB= 7/(18 tan 47)

m∠CDB = arccos [7/(18 tan 47)

m∠CDB = arccos .362644...

 m∠CDB =  68.74°

To learn more about the trigonometry visit:

https://brainly.com/question/24349828

Answer:

3/10 or 0.3

Step-by-step explanation:

Answer:

The modal class is the one with the highest frequency, which is 17

So, the modal class is 20<h<40

Answer:

-8

Step-by-step explanation:

Answer:

[tex]x^3y^6 + 27z^{42} = (xy^2 + 3z^{14})(x^2y^4 - 3xy^2z^{14} + 9z^{28})[/tex]

Step-by-step explanation:

Given

[tex]x^3y^6 + 27z^{42[/tex]

Required

Factor

Express both terms as a cube

[tex]x^3y^6 + 27z^{42} = (xy^2)^3 + (3z^{14})^3[/tex]

Let

[tex]a =(xy^2)[/tex]

[tex]b = (3z^{14})[/tex]

So:

[tex]x^3y^6 + 27z^{42} = a^3 + b^3[/tex]

Using sum of cubes:

[tex]a^3 + b^3 = (a + b)(a^2 - ab + b^2)[/tex]

So:

[tex]x^3y^6 + 27z^{42} = (a + b)(a^2 - ab + b^2)[/tex]

Substitute in, values of a and b

[tex]x^3y^6 + 27z^{42} = (xy^2 + 3z^{14})((xy^2)^2 - (xy^2)*(3z^{14}) + (3z^{14})^2)[/tex]

[tex]x^3y^6 + 27z^{42} = (xy^2 + 3z^{14})(x^2y^4 - 3xy^2z^{14} + 9z^{28})[/tex]

Answer:

its d

Step-by-step explanation:

Answer:

24%

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

Cross multiply

Answer:

212 and I= 2000+212

              =2212

Step-by-step explanation:

Answer:

incorrect, is you plug in the x, y=2x-1, y=60-1, or y=59,

Answer:

Jenna is not correct.

Step-by-step explanation:

If we subsitute the y in the equation with 61 and subsitute x with 30, it would be: 61 = 30*2-1. However 30*2-1=59 therefore it is incorrect.