Kim asked the first 50 kids to school in the morning how they feel about waking up early. she uses their response to predict the responses for the entire school. was her survey random?

Answer:

y=24/x

Step-by-step explanation:

An inverse proportion with a positive input and output always has a "fraction format"

12=24/2

12=12

y=24/1

y=24

The y-value for x=1 was higher than the y-value for x=2, that proves that it's inverse.

Answer: Figure 1, Figure 2, Figure 3

Step-by-step explanation:

Blue figure Volume:

[tex](2 *5^{3} ) + (15*5*5) = 625feet^{3}[/tex]

Pink figure volume:

[tex](5^{3})+(5*5*17.5) + (12.5*2.5*5) = 718.75 feet^{3}[/tex]

Green figure volume:

[tex](4*12.5*11) + (2*9*11) = 748 feet^{3}[/tex]

Answer: 210 advanced tickets were sold. 130 same day tickets were sold.

Step-by-step explanation:

x= advanced tickets y=same day tickets

2x+3y=810 this equation represents the money

x+y=340 this equation represents the total number of tickets

x+y=340

-x     -x

y=-340-x             2x+3(340-x)=810               210+y=340

                           2x+1020-3x=810               -210     -210      

                           -x+1020=810                       y=130

                               -1020  -1020

                                 -x=-210

                                 -1     -1

                                  x=210              

The two equation that represents the information is x + y = 150

y = 3x

let

the number of rock music = x

the number of alternative music = y

Therefore,

x + y = 150

y = 3x

The two equation that represent the information are as follows:

x + y = 150

y = 3x

learn more equation here: https://brainly.com/question/3133333

#SPJ4

Answer:

the answer is 1.9 ^^

The surface area of a cylinder with a base radius of 6 cm and a height of 8 cm will be 301.6 square cm.

The area of the outer layer of any object or cylinder is called the surface area. Here we have a cylinder with a base radius of 6 cm and a height of 8 cm.

The formula for the surface area of a cylinder:-

SA = 2πrl

SA = 2 x π x 6 x 8

SA = 301.6 cm ²

Therefore the surface area of a cylinder with a base radius of 6 cm and a height of 8 cm will be 301.6 square cm.

To know more about surface area follow

https://brainly.com/question/1297098

#SPJ1

The sale the company must make and sell to break even is;

B=600

Generally, the equation for the break even  is mathematically given as

In conclusion

B=y vertex/price of each

Therefore

B=15600/26

B=600

In conclusion, the company's  break even is

B=600

CQ

A company plans to sell bicycle helmets for $26 each. The company's business manager estimates that the cost, y, of making x helmets is a quadratic function with a  y-intercept of 8,400 and a vertex of (500, 15,900). How many helmets must the company make and sell to break even?

Read more about Arithmetic

https://brainly.com/question/22568180

#SPJ4

Answer:

600

Step-by-step explanation:

Answer:

Add the fractions together on the right side of the equation.

Step-by-step explanation:

Notice that two fractions on the right side of the equation in the previous step have the same denominator.  If two fractions have the same denominator, we can simply add the numerators together and place that over the common denominator.

[tex]\implies \sf-\dfrac{4ac}{4a^2}+\dfrac{b^2}{4a^2}=\dfrac{-4ac+b^2}{4a^2}[/tex]

Finally, change the order of the terms in the numerator so that [tex]\sf b^2[/tex] is first:

[tex]\implies \sf-\dfrac{4ac}{4a^2}+\dfrac{b^2}{4a^2}=\dfrac{-4ac+b^2}{4a^2}=\dfrac{b^2-4ac}{4a^2}[/tex]

Therefore, the solution is:

Add the fractions together on the right side of the equation

Answer:

x = 164.10

Step-by-step explanation:

translated question says :

200.50 + 4x = 856.90

4x=656.40

x = 164.10

Answer:

16 muffins in each batch

Step-by-step explanation:

112/7=16

Answer:C

Step-by-step explanation:

The statement which is true is C. The zeros are 10 and -2, because the factors of g are (x-10) and (x+2).

Quadratic functions are polynomial functions consisting of variables and exponents and the degree of the variable is 2.

The general form of a quadratic function is f(x) = ax² + b x + c.

Given is a function,

g(x) = x² - 8x - 20

We have to factorize the expression in order to find the zeroes.

Using factorization method, we can say that, the given function can be factorized (x + p) (x + q) as  there exists two numbers p and q such that pq = -20 and p + q = -8

Two such numbers are -10 and 2.

So,

g(x) = x² - 8x - 20

g(x) = (x - 10) (x + 2)

So the zeroes are x = 10 and x = -2.

Hence the zeroes are 10 and -2.

Learn more about Quadratic Functions here :

https://brainly.com/question/24094210

#SPJ2

Let's check Pythagorean theorem

A is perpendicular

B is base

C is Hypotenuse

Answer:

[tex]3 \sqrt{17}[/tex]

Step-by-step explanation:

The given triangle is a right triangle.  Therefore, we can use Pythagoras Theorem to find the measure of the third side.

Pythagoras Theorem

  [tex]a^2+b^2=c^2[/tex]

where:

From inspection of the given triangle:

To calculate the measure of the third side "b", substitute the given values into the formula and solve for b:

[tex]\begin{aligned}a^2+b^2 & = c^2\\\implies 4^2+b^2 & = 13^2\\16+b^2 & = 169\\16+b^2-16 & = 169-16 \\b^2 & = 153\\\sqrt{b^2} & =\sqrt{153}\\b & = \sqrt{9 \cdot 17}\\b & = \sqrt{9}\sqrt{17}\\b & = 3\sqrt{17}\end{aligned}[/tex]

Therefore, the measure of the third side of the given right triangle in simplest radical form is  [tex]3 \sqrt{17}[/tex].

Learn more about Pythagoras Theorem here:

https://brainly.com/question/27707750

https://brainly.com/question/26954703

Answer

[tex]x = \frac{\pi }{6} + 2\pi n, \frac{5\pi }{6} + 2\pi n, \frac{3\pi }{2} + 2\pi n[/tex], for any integer n

Answer:

D or 270°

Step-by-step explanation:

2sin^2x+sinx-1

2sin^2(270°)+sin(270°)-1=0

Step-by-step explanation:

total no of items (n)= 5

median (m) = (n+1)/2 th item

= (5+1)/2 th item

= 6/2 th item

= 3rd item

= 152152152

Answer:

Answer(s):

1x4

2+2

2x2

Step-by-step explanation:

Hope this helps!

Answer:

See below ~

Step-by-step explanation:

Question 3 : (x, y - 5)

Question 4 : (x + 4, y + 1)

Using the together rate, it is found that the value that must be discarded is given by x = -9.

It is the sum of each separate rate.

In this problem, the rates are given as follows:

Hence:

[tex]\frac{1}{x} + \frac{1}{x + 18} = \frac{1}{40}[/tex]

[tex]\frac{x + 18 + x}{x(x + 18)} = \frac{1}{40}[/tex]

[tex]x^2 + 18x = 80x + 720[/tex]

[tex]x^2 - 72x - 720 = 0[/tex]

Then, we have a quadratic function, with coefficients a = 1, b = -72, c = -720, so:

[tex]\Delta = (-72)^2 - 4(1)(-720) = 8064[/tex]

[tex]x_1 = \frac{72 + \sqrt{8064}}{2} = 80.9[/tex]

[tex]x_2 = \frac{72 - \sqrt{8064}}{2} = -9[/tex]

They cannot have a negative rate, hence the value that must be discarded is given by x = -9.

More can be learned about the together rate at https://brainly.com/question/25159431

#SPJ1

Answer:

X = -10

Step-by-step explanation:

PLATO

Answer: The graph with green line is the graph showing a 1 radian angle in a standard position.

Step-by-step explanation:

Hope it helps you:)))))))

Have a good day

Answer: the one on the bottom left

Step-by-step explanation:

Step-by-step explanation:

to add 8% the simplest operation is to multiply the basic amount by 1.08.

so,

£9.45 = original price × 1.08

original price = £9.45/1.08 = £8.75

the price before the increase was £8.75.

Answer:

answer is 9/16 (9 over 16) Decimal form 0.5625

Step-by-step explanation:

The measure of ∠angle B when Angle C is inscribed in circle O and AB is a diameter of circle O, is 19 degrees.

According to the triangle angle sum theorem, the sum of all the angle(interior) of a triangle is equal to the 180 degrees.

In the image attached below:

The measure of the angle A is,

[tex]m\angle A=71^o[/tex]

The measure of the angle C in a semicircle is,

[tex]m\angle C=90^o[/tex]

The sum of all the angle(interior) of a triangle is equal to the 180 degrees. Thus,

[tex]\angle A+\angle B+\angle C=180\\90+\angle B+71=180\\\angle B=180-90-71\\\angle B=19^o[/tex]

Thus, the measure of ∠angle B when Angle C is inscribed in circle O and AB is a diameter of circle O, is 19 degrees.

Learn more about the triangle angle sum theorem here;

https://brainly.com/question/7696843

#SPJ1

Answer:

126 square yards

Step-by-step explanation:

So first you want to use this formula:

2(L×W) + 2(L×H) +2(W×H)

Then plug it in:

2(6×5) + 2(6×3) + 2(5×3)

Next you solve:

6×5 = 30×2 = 60

6×3 = 18×2 = 36

5×3 = 15×2 = 30

After this you add them all up:

60 + 36 + 30 = 126

So you answer is 126 square yards

Hope this helps :)

Answer:

last option (x-2)(x+1)/3

Step-by-step explanation:

(x^2-4)/(x-7) ÷ (3x+6)/(x^2-6x+7)

(x^2-4)/(x-7) * (x^2-6x+7)/(3x+6)

(x+2)(x-2)/(x-7) * (x-7)(x+1)/3(x+2)

(x-2)/1 * (x+1)/3

(x-2)(x+1)/3

Answer:

-9x + 4y

Step-by-step explanation:

Adding expressions:

     Like terms have same variable with same power.Combine like terms.

Here, x and (-10x) are like terms &

         (-2y) and 6y are like terms

x - 2y + (-10x + 6y) = x - 2y - 10x + 6y

                              = x - 10x - 2y + 6y

                               = -9x + 4y

Answer:

632

Step-by-step explanation:

1580*0.4=632

Answer:

∠N = 21

Step-by-step explanation:

Sum of all angles of triangle = 180°

   4x - 13 + 2x - 13 + 5x + 19 = 180

    4x + 2x + 5x  -13 - 13 + 19 = 180

Combine like terms

                       11x  - 7  = 180

                               11x = 180 + 7

                                11x = 187

                                  x = 187/11

x = 17

m∠N = 2x - 13

           = 2*17 - 13

           = 34 - 13

          = 21

Answer:

Corresponding

Step-by-step explanation:

So, we know that 1&2, 3&4, 5&6, and 7&8 all equal 180 degrees in their pairs. 7&3 are corresponding angles that are less than 90 degrees on their own. We don't know the degrees of each angle, so we can't say their exact angle.

(I know I didn't give the second answer, if you elaborate, maybe I can understand what it's asking better)

Hope this helped!

Answer:

-> Corresponding

-> Are equal

Explanation:

        First, we will find where angles 3 and 7 are at. See attached. Since they are in corresponding places on both lines, these angles are corresponding angles.

        We know that corresponding angles have the same measurement, so their measures will be equal, or in other words, congruent.