A polygon has 7 sides. The interior angle measures are 130°, 118°, 135°, 128°, 126°, 134°, and x°. Find the value of x.

The number of coins that the pirates collect is A. 10.

From the information, the pirate ship found a treasure chest that contained 127 gold coins and 253 silver coins and there are 38 pirates on the ship.

The number of coins that way person will get will be:

=>Total coins / Number of pirates

= (253 + 127) / 38

= 380 / 38

= 10

Each person gets 10 coins.

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The variable y varies directly with x and the variation equation is (b) y = -1/2x

The graph represents the given parameter

On the graph, we can see that:

The values of x are divided by -2 to get y

This means that the graph represents a direct variation

Recall that we stated that:

The values of x are divided by -2 to get y

This means that the constant of variation is -1/2

The direct variation equation is represented as:

y = kx

Where k represents the constant of variation i.e. k = -1/2

Substitute the known values in the above equation So, we have the following equation

y = -1/2x

Hence, the equation of variation is y = -1/2x

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Answer:

a) 1:25 b) 2:06 c) 5:00 d) 4:10

Step-by-step explanation:

Considering the definition of an inequality, the number of folders Jan would need to buy for the Supply Guys to be the cheaper option is more than 18.

An inequality is the existing inequality between two algebraic expressions, connected through the signs:

An inequality contains one or more unknown values ​ in addition to certain known data.

Solving an inequality consists of finding all the values ​​of the unknown for which the inequality is true.

In this case, you know that:

Being "x" the number of folders, the inequality that expresses the previous relationship is

45 + 0.45x > 50.40 + 0.15x

Solving:

0.45x - 0.15x > 50.40 -45

0.30x> 5.4

x> 5.4÷ 0.3

x> 18

Finally, the number of folders Jan would need to buy is more than 18.

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The number of candy bar that she bought is 6

The total amount that she spend for soda and candy= $12

The cost of one soda = $3

The cost of one candy bar = $1.50

Number of soda that she bought = 1

Consider the number of candy bar that she bought as x

Then the equation will be

3×1 + 1.50 × x = 12
Multiply the terms

3 + 1.50x = 12

Move 3 to right hand side of the equation

1.50x = 12 - 3

1.50x = 9

Move 1.50 to the right hand side of the equation

x = 9 / 1.50

x = 6

Hence, the number of candy bar that she bought is 6

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Answer:

A) 3

B) 2[tex]\sqrt{6}[/tex]

C) 3[tex]\sqrt{2}[/tex]

Step-by-step explanation:

A

3x3 = 9

B

24 = 2x2x2x3  We can pull out a pair of 2 and are left with 6

C

18 = 2x3x3  We can pull out a pair of 3 and are left with 2

Answer:

The slope (constant rate of change) is 5.

The constant of proportionality for the relationship is 0.002.

We are provided that amount of chlorine needed is directly proportional to the volume of the pool .

So we can formulate the relation as

C = kV ... (1)                   ( where  C = amount of chlorine ,

                                              k = constant of proportionality

                                              V = volume of the pool  )

the sample ratio of chlorine to the the volume of pool , we have :

5 : 2500

10 : 5000

15 : 7500

So taking the first sample value and putting it in eqn (1)

we get

5 = k (2500)

therefore,

k = 5/ 2500

k = 0.002

So the constant of proportionality will be 0.002

Similarly if we take the other values also the constant of proportionality will remain the same.

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La cinta de Mario tiene una longitud que es 0.75 veces la longitud de la cinta de Beatriz.

Sabemos que la longitud de la cinta de Mario tiene una longitud de 6 metros, mientras que su amiga Beatriz tiene una cinta de longitud de 8 metros.

Para saber cuantas veces es la longitud de la cinta de mario comparada con la longitud de la cinta de beatriz, tenemos que tomar el cociente entre ambas longitudes, obtendremos:

6m/8m = 0.75

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Answer:

The registration fee is $28

Step-by-step explanation:

5,600/100=56 which is 1% of 5,600.

56/2=28 which is 0.5% of 5,600.

;)

Answer: $28

Step-by-step explanation:

you calculate what 0.5 percent is of 5,600  :)

The two triangles are congruent.

So, their corresponding sides will be equal.

So, 2x+5 = 5x-19

3x = 24

x = 8 cm.

So, XZ = 2*8+5 = 21 cm

The ounces of the 50% mixture that the pharmacist should use is 6 ounce.

From the information, we need two equations to solve this problem.

equation 1:

x + y = 10

equation 2:

.5x + .75y = 10(.6)

set y = 10 - x

.5x + .75(10-x) = 6

.5x + 7.5 - .75x = 6

.5x -.75x = 6 - 7.5

-.25x = -1.5

Divide

x = -1.5/-.25

x = 6

Therefore, 6 ounce of the 50% sorghum are required.

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The two coordinates on the segment AB due to internal division are (5,0) and (-3,-4).

What is internal division?

When a point P divides the line joining the two points and the potint P lies in between the two coordinates then the division is internal division. If the point lies outside of the given coordinates then the division is known as external division.

The division is internally because point P lies on the line as given in the question.

The formula for the internal division is as follows:

[tex]X=\frac{mx_1+nx_2}{m+n}\\Y=\frac{my_1+ny_2}{m+n}[/tex]

Since points are A(-5,-5) and B(7,1) hence, [tex]x_1=-5,x_2=7,y_1=-5,y_2=1[/tex] and ratio is 1:5 then [tex]m=1,n=5[/tex].

Substute all value to obtain the coordinates.

[tex]X_1=\frac{1(-5)+5(7)}{1+5}\\X_1=5\\Y_1=\frac{1(-5)+5(1)}{1+5}\\Y_1=0[/tex]

Hence, the first cordinate is (5,0).

As given in the question that the ratio in not necessarily in the order of 1:5 so, consider the ratio is 5:1.

Now, m=5 and n=1.

Again substitute all values in to find the new coordinate.

[tex]X_2=\frac{5(-5)+1(7)}{5+1}\\X_2=-3\\Y_2=\frac{5(-5)+1(1)}{5+1}\\Y_2=-4[/tex]

Hence, another coordinate is (-3,-4).

Hence, the two coordinates on the segment AB due to internal division are (5,0) and (-3,-4).

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Answer: HISFAVORITESUBJECTS

Step-by-step explanation:

Answer:

  A, B, E

Step-by-step explanation:

You want three true statements describing the circle whose equation is ...

  x² + y² – 2x – 8 = 0

A graphing calculator can plot this equation for you. The result is attached.

We see that ...

__

Additional comment

The standard form equation of a circle is ...

  (x -h)² +(y -k)² = r² . . . . . center (h, k), radius r

Rearranging the given equation to this form, we have ...

  (x -1)² +y² = 8 +1 = 9 . . . . . . . . r²=9 ⇒ r=3

This means the center is (1, 0), and the radius is 3. The point (1, 0) is on the x-axis.

The circle with equation x² + y² = 9 is centered at the origin and has radius 3.

The y-intercept of the graph of the function g(n) represents the height of the flower.

We are given:

A researcher is following the growth of a particular type of flower. She writes the given equation to show the height of the flower g(n), in inches, after n days.

g(n) = 10(1.02)^n

which is an exponential function.

We need to find what the y-intercept of the graph of the function g(n) represents.

We have the exponential function;

g(n) = 10(1.02)^n

where,

x-coordinate of the graph represents the number of days.

y-coordinate of the graph represents the height of the flower.

Thus, the y-intercept of the graph of the function g(n) represents the height of the flower.

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The value of x will be 24.

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

For a given right triangle, the expression is,

⇒ sin (3x - 7) = cos (x + 1)

Now,

Solve for x as;

The expression is,

⇒ sin (3x - 7) = cos (x + 1)

Since, sin x= cos (90 - x)

So, We get;

⇒ sin (3x - 7) = cos (x + 1)

⇒ cos (90 - (3x - 7)) = cos (x + 1)

⇒ 90 - (3x - 7) =  (x + 1)

⇒ 90 - 3x + 7 = x + 1

⇒ 97 - 3x = x + 1

⇒ 97 - 1 = x + 3x

⇒ 96 = 4x

⇒ 4x = 96

⇒ x = 96/4

⇒ x = 24

Thus, The value of x will be 24.

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The translation made from f(x) → f(x) + 6 is sliding it up

A translation is a geometric change in Euclidean geometry that involves moving each point in a figure, shape, or space by the same amount in one direction.

A translation can also be thought of as moving the origin of the coordinate system or as adding a constant vector to each point.

Any translation in a Euclidean space is an isometry.

the translation made from f(x) → f(x) + 6 involves moving the graph up 6 units

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Answer: $42.60

Step-by-step explanation:

divide $35.50 by 5 and then add the quotient ---> $7.10, to $35.50, which equals $42.60.

Answer:   A) 0.05%

Step-by-step explanation:  Converting the shaded area of the hundredths grid to a fraction would be 5/100 (or 1/20 simplified). Then convert 5/100 to a percentage by calculating 5 ÷ 100, which is 0.005%, therefor the answer is A.

anwser: she has 34 cookies left

the slope of the given point is m=2/17

The strength and relationships of the given data is verified as reasonable.

Given,

Determine the degree of the link (weak, moderate, or strong) in each of the six plots and if it is reasonable to fit a linear model to the data.

(a) There is a moderate relationship in the data. A linear model should not be reasonable.

→ From the plot here, it is clear that the data is following a quadratic trend, so a linear model should not be reasonable. On the other hand, it is also clear that the data is scattered more than a little around the approximate quadratic trend line, so there is a moderate relationship in the data.

(b) There is a strong relationship in the data. A linear model should be reasonable.

→ From the plot here, it is clear that the data is following a linear trend, so a linear model should be reasonable. On the other hand, it is also clear that the data is scattered almost a little around the approximate linear trend line, so there is a strong relationship in the data.

(c) There is a weak relationship in the data. A linear model should not be reasonable.

→ From the plot here, it is clear that the data is not following any trend, so a linear model should not be reasonable. On the other hand, it is also clear that the data is scattered everywhere, so there is a weak relationship in the data.

(d) There is a moderate relationship in the data. A linear model should not be reasonable.

→ From the plot here, it is clear that the data is following a quadratic trend, so a linear model should not be reasonable. On the other hand, it is also clear that the data is scattered more than a little around the approximate quadratic trend line, so there is a moderate relationship in the data.

(e) There is a strong relationship in the data. A linear model should be reasonable.

→ From the plot here, it is clear that the data is following a linear trend, so a linear model should be reasonable. On the other hand, it is also clear that the data is scattered almost a little around the approximate linear trend line, so there is a strong relationship in the data.

(f) There is a weak relationship in the data. A linear model should not be reasonable.

→ From the plot here, it is clear that the data is not following any trend, so a linear model should not be reasonable. On the other hand, it is also clear that the data is scattered everywhere, so there is a weak relationship in the data.

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Answer:

second number = (x + 7.5)

Since the product of the two numbers is double of their sum,

             x(x + 7.5) = 2(x + x + 7.5)

             x² + 7.5x = 2(2x + 7.5)

             x² + 7.5x = 4x + 15

x² + 7.5x - 4x - 15 = 0

      x² + 3.5x - 15 = 0

                      ∴ x = -6 or 2.5

∴ second number

= -6 + 7.5 or 2.5 + 7.5

= 1.5 or 10

∴ The two numbers that I am thinking of are either -6 and 1.5 or 2.5 and 10.

Answer: anna worked 4.33repeating hours washing cars and 3.25 hours landscaping

Step-by-step explanation:

i personally used a guess and check method.

i multiplied 9(hourly wage for washing cars) and 4.33repeating(number of hours) = 39

i multiplied 12(hourly wage landscaping) and 3.25(number of hours) = 39

39 + 39 = $78

Answer:

Below

Step-by-step explanation:

a(x-p)(x-q)        p = -2    q = 5

a ( x- - 2)(x - 5)         sub in the values of the point given (3,6) to calculate 'a'

6  = a (3+2)(3-5)

a = -6 /10 = - 3/5

y = -3/5 (x+2)(x-5)  

Answer:

[tex]\textsf{Intercept form}: \quad y=-\dfrac{3}{5}(x+2)(x-5)[/tex]

[tex]\textsf{Standard form}: \quad y=-\dfrac{3}{5}x^2+\dfrac{9}{5}x+6[/tex]

Step-by-step explanation:

[tex]\boxed{\begin{minipage}{6 cm}\underline{Intercept form of a quadratic equation}\\\\$y=a(x-p)(x-q)$\\\\where:\\ \phantom{ww}$\bullet$ $p$ and $q$ are the $x$-intercepts. \\ \phantom{ww}$\bullet$ $a$ is some constant.\\\end{minipage}}[/tex]

If the x-intercepts are (-2, 0) and (5, 0) then:

Substitute the values of p and q into the formula:

[tex]\implies y=a(x-(-2))(x-5)[/tex]

[tex]\implies y=a(x+2)(x-5)[/tex]

To find a, substitute the given point on the curve P (3, 6) into the equation:

[tex]\implies 6=a(3+2)(3-5)[/tex]

[tex]\implies 6=a(5)(-2)[/tex]

[tex]\implies 6=-10a[/tex]

[tex]\implies a=\dfrac{6}{-10}[/tex]

[tex]\implies a=-\dfrac{3}{5}[/tex]

Substitute the found value of a into the equation:

[tex]\implies y=-\dfrac{3}{5}(x+2)(x-5)[/tex]

Expand to write the equation in standard form:

[tex]\implies y=-\dfrac{3}{5}(x^2-3x-10)[/tex]

[tex]\implies y=-\dfrac{3}{5}x^2+\dfrac{9}{5}x+6[/tex]

Check the picture below.

[tex]~\hfill \stackrel{\textit{\large distance between 2 points}}{d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}}~\hfill~ \\\\[-0.35em] ~\dotfill\\\\ A(\stackrel{x_1}{-7}~,~\stackrel{y_1}{2})\qquad B(\stackrel{x_2}{3}~,~\stackrel{y_2}{-8}) ~\hfill AB=\sqrt{(~~ 3- (-7)~~)^2 + (~~ -8- 2~~)^2} \\\\\\ ~\hfill AB=\sqrt{( 10)^2 + ( -10)^2} \implies \boxed{AB=\sqrt{ 200 }}[/tex]

[tex]B(\stackrel{x_1}{3}~,~\stackrel{y_1}{-8})\qquad C(\stackrel{x_2}{-4}~,~\stackrel{y_2}{-9}) ~\hfill BC=\sqrt{(~~ -4- 3~~)^2 + (~~ -9- (-8)~~)^2} \\\\\\ ~\hfill BC=\sqrt{( -7)^2 + ( -1)^2} \implies \boxed{BC=\sqrt{ 50 }} \\\\\\ C(\stackrel{x_1}{-4}~,~\stackrel{y_1}{-9})\qquad A(\stackrel{x_2}{-7}~,~\stackrel{y_2}{2}) ~\hfill CA=\sqrt{(~~ -7- (-4)~~)^2 + (~~ 2- (-9)~~)^2} \\\\\\ ~\hfill CA=\sqrt{( -3)^2 + (11)^2} \implies \boxed{CA=\sqrt{ 130 }} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\stackrel{\textit{\LARGE perimeter}}{\sqrt{200}~~ + ~~\sqrt{50}~~ + ~~\sqrt{130}} ~~ \approx ~~ \text{\LARGE 32.61}[/tex]

The quadratic equation whose sum of two real roots is 31 and product is 210 will be [tex]x^{2} -31x+210 = 0[/tex].

According to the question,

We have the following information:

The sum of roots of a quadratic equation = 31

The product of roots of a quadratic equation = 210

We know that the standard form of the quadratic equation is given as follows:

[tex]ax^{2} +bx+c = 0[/tex]

Now, the sum of roots is -b/a and the product of roots is c/a.

So, we have the following expressions:

-b/a = 31

b = -31 and a = 1

c/a = 210

c = 210 and a = 1

So, the equation will be:

[tex]x^{2} -31x+210 = 0[/tex]

Hence, the quadratic equation whose sum of two real roots is 31 and product is 210 will be [tex]x^{2} -31x+210 = 0[/tex].

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If a - b = -5 and ab = 0 then the value of the expression a³-b³ is -125.

In the question ,

it is given that ,

the value of a - b = -5 and ab = 0

we need to find the value of the expression (a³-b³) ,

we know the identity that a³-b³ = (a - b)(a² + b² + ab)

we first need the value of a² + b² .

given that a - b = -5

squaring both the sides , we get

(a - b)² = 25

a² + b² - 2ab = 25

given ab = 0, so a² + b² = 25

Substituting a² + b² = 25 in the identity a³-b³ = (a - b)(a² + b² + ab) ,

we get ,

a³-b³ = (-5)(25 + 0)

a³-b³ = -5 × 25

a³-b³ = -125

the answer is -125 .

Therefore , If a - b = -5 and ab=0 then the value of the expression a³-b³ is -125.

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Answer:

$134.86

Step-by-step explanation:

Let the original price before tax be x.

A whole amount is 100% of the amount, so x is 100% of the original price without tax.

The tax rate is 6%, so the tax on x is 6% of x. Add 6% of x to 100% of x, and you have 106% of x. The item plus tax cost 106% of x.

106% of x = $142.95

106/100 × x = 142.95

1.06x = 142.95

x = 142.95/1.06

x = $134.86

Answer: $134.86