hello please help i’ll give brainliest

Answer:

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

So, the modal class is 20<h<40

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:

20 sweatshirts and 5 hats

Step-by-step explanation:

So, let's assign our variables.

x = sweatshirts

y = hats

Now, we can set up our system of equations.

x + y = 25

8x + 2.5y = 172.5

In this instance, you can use a variety of methods. I will use substitution.

x + y = 25

x = 25 - y

8(25 - y) + 2.5y = 172.5

200 - 8y + 2.5y = 172.5

200 - 5.5y = 172.5

-5.5y = -27.5

y = 5.5

Now, we can plug in y to solve for x.

8x + 2.5(5.5) = 172.5

8x + 13.75 = 172.5

8x = 158.75

x = 19.84

Now, this was very sloppy work, and now we must make sense of these answers as pertaining to the context of the equation. First, let's try 20 and 5.

20 + 5 = 25

8(20) + 2.5(5) = 172.5 It works!

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:

-8

Step-by-step explanation:

Answer:

Supplementary: 126 degrees ( 180-54)

Complementary: 47degrees (90-43)

Hope it helps!!!

Answer:

3/10 or 0.3

Step-by-step explanation:

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:

[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:

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:

D. 9b

Step-by-step explanation:

4b + 5b is essentially 4 + 5

so 9b

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:

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:

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:

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:

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

Answer:

24%

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

Cross multiply

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:

5x-7

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.

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:

She should mix 9 g of powder

Step-by-step explanation:

From the question, we can have a ratio for powder to water

we have 5 g of powder mixed with 45 cm^3 of water

So, for every 1 g, we have 5g/45 cm^3

we have 9 cm^3

So let’s relate this to the bigger water mix

Recall from above; we have the mixing as 1 g per 9 cm^2 of water

1g per 9 cm^2

x g per 81 cm^2

81 * 1 = x * 9

9x = 81

x = 81/9

x = 9g

Answer:

Angle of A = 90 degree-62 degree =  28 degree.

Step-by-step explanation:

tan (62) = opposite / adjacent = 10 / a ---> a = 10/tan (62) = 10/ 1.88 = 5.319

cos (62) = a/c --->c = a/cos (62) = 5.319 / 0.47  = 5.3 / 0.47  = 11.3

or another way.

sin (62) = 10 /c  ---> c = 10/ sin (62) = 10 / 0.88 = 11.3

So Angle of A = 28 degree.

a = 5. 3

c =  11.3.

please give me brainliest. I hope it help.

Answer:

Ok, acceleration is the rate of change of velocity.

So if the velocity of one object changes, this means that the object is accelerating.

Also, remember that velocity is a vector, this means that has a direction, then if for example the direction of motion changes slightly we have acceleration.

A) The correct option is D, all the choices given are correct. (by definition of acceleration)

B)

If you have positive velocity, negative acceleration means that your velocity will decrease.

While if you have a negative velocity, negative acceleration will decrease your velocity, making it bigger in module, thus increasing your speed.

Then we can not say anything conclusive of what happens only knowing the sign of the acceleration.

Then the correct option is the trivial one "the object moves on a straight line". option D

C) Any unit that is the quotient between a distance unit and a squared time unit.

for example: m/s^2,  km/s^2, etc.

Here the correct option is A.

"meters per squared second" is equal to m/s^2

D) If you steep inside the carrousel you will not move in a straight line, this means that while your speed is constant, it is changing direction constantly, then you are accelerating.

The correct option is D.

C) Both motorcycles A and B are changing their speeds, while motorcycle C is changing its direction, then the 3 are accelerating.

The correct option is D

E) Assuming that the velocity of the jeepney is positive, if the jeepney speeds up, then it must have positive acceleration, then the correct option is: B

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:

one solution

one solution

Answer:

212 and I= 2000+212

              =2212

Step-by-step explanation:

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