The pie chart shows how 36 pupils travel to school.

Use the pie chart to complete the table.

A system of three linear equations: for the total number of tickets sold is 215 is f + s + t = 215, for the total revenue from ticket sales is $1214 is 7f + 5.25s + 5.5t = 1214, for three times as many senior citizen tickets were sold as full-price tickets is s = 3f.  

There were approximately 11 full-price tickets sold. There were 33 senior citizen tickets sold. There were 171 student tickets sold.

Let f, s, t be the number of full-price tickets sold, senior citizen tickets sold, student tickets sold.

Firstly, write a system of three linear equations based on the given information and mark the equation number.

f + s + t = 215      (1)        (the total number of tickets sold is 215)

7f + 5.25s + 5.5t = 1214   (2)  (the total revenue from ticket sales is $1214)

s = 3f          (3)           (three times as many senior citizen tickets were sold as full-price tickets)

solve this system by substitution. Using equation (3), we can substitute 3f for s in equations (1) and (2):

f + 3f + t = 215

7f + 5.25(3f) + 5.5t = 1214

Simplifying these equations gives:

4f + t = 215           (4)

24.75f + 5.5t = 1214   (5)

We can solve equation (4) for t to get:

t = 215 - 4f

We can substitute this expression for t in equation (5) and solve for f:

24.75f + 5.5(215 - 4f) = 1214

24.75f + 1182.5 - 22f = 1214

2.75f = 31.5

f = 11.45 ≈ 11

Therefore, approximately 11 full-price tickets were sold. Using equation (3), we can find the number of senior citizen tickets sold:

s = 3f = 3(11) = 33

Therefore, 33 senior citizen tickets were sold. Finally, we can use equation (1) to find the number of student tickets sold:

f + s + t = 215

11 + 33 + t = 215

t = 171

Therefore, 171 student tickets were sold.

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The factor of 18 is 1,2,3,6,9,18,-1,-2,-3,-6,-9,-18 if we want we can take negative factor also .

Due to its even composite nature, the number 18 has extra variables besides 1 and 18. As a result, the components of 18 are 1, 2, 3, 6, 9, and 18, and their opposites are -1, -2-3,-6,-9,-18  

A factor is a number that completely divides another number. To put it another way, if adding two whole numbers results in a product, then the numbers we are adding are factors of the product because the product is divisible by them.

Factors can be found using either division or multiplication. Rules of divisibility can also be applied.

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6= 130

is the first 1 I'm sorry i don't the rest

Answer:

11:30

Step-by-step explanation:

The ratio is 22:60

We simplify by 2 and get

11:30

We can't simplify any more, so the answer is 11:30.

If the recipe calls for 1 5/6 cups of flour, and Finn triples the recipe, he will need 3 times the amount of flour.

To find the total amount of flour Finn will need, we can first convert the mixed number 1 5/6 to an improper fraction:

Next, we can multiply this fraction by 3 to find the total amount of flour needed:

We can simplify this fraction by dividing both the numerator and the denominator by 3:

Therefore, Finn will need 11/2 cups of flour in total.

~ Zeph

The factors of 20 are 1, 2, 4, 5, 10 and 20. A number that divides 20 exactly without producing a remainder is said to be one of its factors.

In other words, the factors of 20 are the numbers that, when multiplied in pairs, result in the number 20. 20 has many factors besides 1 and 20 because it is an even composite number. Thus, 1, 2, 4, 5, 10, and 20 are the factors of 20.

By dividing 20 by various integers, the division method allows one to discover the factors of the number 20. The integers are the factors of 20 if they divide 20 precisely with a remainder of 0. Let's discuss the factors of 20 using the division method now.

20/1 equals 20 (factor 1; remainder 0).

20/2 = 10 (Factor is 2 and Remainder is 0)

20/4 equals 5 (the factor is 4 and the remainder is 0).

20/5 equals 4 (the factor is 5 and the remainder is 0).

20/10 equals 2 (factor is 10; remainder is 0).

20/20 = 1 (20 is the factor and 0 is the remainder).

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a)  The electrical potential V (center) at the center C of the circle due to the charges Q1 and Q2 is -2.30 V.

b) The total electrical potential at the point P due to charge Q1 and Q2 , located at a distance of 6.71 cm is -1.78V.

Given that:

Radius of the circle, r = 8.20cm

Charge distributed along one-quarter of the circumference of the circle,

Q1 = +4.20pC

Charge distributed along 3/4th of the circumference of the circle,

Q2 = 25.20pC

Distance of the point from the center, d = 6.71cm

The electric potential at infinity is. V = 0

Using the concept of potential at a point on a thin rod, we can obtain the individual potential due to each charge. The sum of these values ​​can now be used to obtain the desired potential value at the center and at the point, taking into account the distance to the point.

Formula:

The potential due to a point charge at a distance r from the point charge is determined by the equation V = [tex]\frac{1}{4\pi E_0} * \frac{q}{r}[/tex]        ---------------- (1)

The potential due to the collection of point charges is determined by formula:

V = ∑[tex]\frac{1}{4\pi E_0} * \frac{q}{r}[/tex]                 -------------------- (2)

(a) The potential VQ1 at the center C of the circle due to the charge Q1 is determined using equation (i) as:

[tex]V_Q_1 = \frac{1}{4\pi E_0} * \frac{Q_1}{R}[/tex]              --------------------- (3)

Here, R is the radius of circle

The potential VQ1 at the center C of the circle due to the charge Q1 is determined using equation (i) as:

[tex]V_Q_1 = \frac{1}{4\pi E_0} * \frac{Q_2}{R}[/tex]                 ----------------------- (4)

Now the potential V(center) at the center C of the circle due to charges Q1 and Q2 is the sum of the potential due to charge Q1 and the potential due to charge Q2. This is given using equations (a) and (b) in equation (ii) as:

    [tex]V_Center = \frac{1}{4\pi E_0} * \frac{Q_1}{R} + \frac{1}{4\pi E_0} * \frac{Q_2}{R}[/tex]

⇒ [tex]V_Center = \frac{1}{4\pi E_0} *( \frac{Q_1}{R} + \frac{Q_2}{R})[/tex]

⇒ 9.0 × 10⁹Nm²/C₂ ([tex]\frac{4.20*10^-12 C}{0.082m} +\frac{-25.2*10^-12C}{0.082m}[/tex])

⇒ -2.30V

The electrical potential V (center) at the center C of the circle due to the charges Q1 and Q2 is -2.30 V.

(b) From the above figure the r between each charged particle and the point P is given as:

[tex]r = \sqrt{R^{2}+D^{2} }[/tex]                    

In the figure above, r between each charged particle and point P is defined as: ="1662703245948 "

[tex]V_Q_1 = \frac{1}{4\pi E_0} * \frac{Q_1}{\sqrt{R^{2} + D^{2} } }[/tex]                  ------------------ (5)

Again, the electric potential at point P due to charge Q2 is given using equation (i) as follows:
[tex]V_Q_1 = \frac{1}{4\pi E_0} * \frac{Q_2}{\sqrt{R^{2} + D^{2} } }[/tex]                   -------------------- (6)

A The potential at point P due to charge Q2 is determined using equation (i): The potential of charge Q1 and the potential of charge Q2. This is given using equations (c) and (d) in equation (ii) as:

[tex]V_P = 9.0 * 10^9Nm^2/C^2 (\frac{4.20*10^-12C-6(4.20*10^-12C)}{\sqrt{(0.082m)^{2} + (0.082m)^{2} } })[/tex]

= -1.78V

The total electrical potential at the point P due to charge Q1 and Q2 , located at a distance of 6.71 cm is -1.78V.

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A solution set calculator online is a tool used to find the set of values that satisfy an equation or system of equations.

It is useful in a variety of mathematical fields such as algebra, calculus, and linear algebra. The calculator takes in the equation(s) and returns the solution set, which is the set of values that satisfy the equation(s). These calculators can be used for both linear and nonlinear equations, and can help in finding the solutions to problems that are difficult or time-consuming to solve by hand.

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The surface area of a cylinder can be calculated using the following formula: Surface Area = 2πr2 + 2πrh, where r is the radius and h is the height of the cylinder.

In this case, Jenny is looking to store her soup in a cylindrical container and completely cover it in aluminium foil. This means the surface area of the container will be equal to the surface area of the cylinder plus the surface area of the foil. So, if the radius of the cylinder is r and the height is h, the surface area of the container is:

Surface Area = 2πr² + 2πrh  
Surface Area of Foil = 2πr² + 2πrh + 2r²π

Substituting in the given value for pi, we get Surface Area = 6.28r² + 6.28rh + 2r²π.

Therefore, the surface area of the container is equal to 6.28r² + 6.28rh + 2r²π, where r is the radius and h is the height of the cylinder.

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The correct answer is (D) If A is the given matrix, then the augmented matrix represents the equation Ax =0. The reduced echelon form of this matrix indicates that Ax =0 has only the trivial solution. Therefore, the columns of A form a linearly independent set.

A collection of numbers lined up in rows and columns to form a rectangular array is called a matrix. The elements, or entries, of the matrix are the integers. In addition to numerous mathematical disciplines, matrices find extensive use in the fields of engineering, physics, economics, and statistics. In computer graphics, where they have been used to describe picture rotations and other transformations, matrices have vital applications as well.

Mathematically, assume that B = {v₁, v₂, v₃, ........} is the set of vectors. Then B will be linearly independent if the vector equation

y₁v₁ + y₂v₂ + y₃v₃ + ........ = 0 possesses the trivial solution such that

y₁ = y₂ = y₃ = ........ = 0.

Let A be a matrix, then columns of A will be linearly independent if the equation Ax = 0 possesses the trivial solution. In other words, The row space of matrix A is the span of its rows. The column space denoted by

C(A) is the span of A’s columns. The dimension of the row and column spaces is always the same, which is known as the rank of A.

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Angle 2 is the angle of elevation from point Q to point R.

What is angle of elevation ?

The angle of elevation is the angle formed between a horizontal line and the line of sight from the observer's eye to an object located above the observer's level. In other words, it is the angle between the horizontal and an imaginary line drawn upwards from the observer to the object being viewed. It is typically measured in degrees or radians.

Given,

Point Q is at the far left side of the top line, point R is at the far right of the second line, and point S is at the far left side of the bottom line.

Lines are drawn from point Q to point R and from point R to point S.

angle of depression from point R to point S.

The angle of depression from point S to point R is angle 3.

Therefore, Angle 2 is the angle of elevation from point Q to point R.

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Answer:

the angle of depression from point R to point S is angle 3

the angle of elevation from point S to point R is angle 4

angle 2 is the angle of elevation from point R to point Q

angle 1 is the angle of depression from point Q to point R

Step-by-step explanation:

Answer:

Therefore, the unknown number is 5.

Step-by-step explanation:

We can translate "Eight times the difference of a number and six is negative eight" into an algebraic equation as given below,

8(x - 6)

= -8                (where x is the unknown number we are trying to find)

The expression "the difference of a number and six" means x - 6. So, "eight times the difference of a number and six" means 8(x - 6).

The equation states that the product of 8 and the difference of the number x and 6 is equal to -8.

To solve for x, we can simplify the equation,

8(x - 6) = -8

8x - 48 = -8

8x = 40

x = 5

Therefore, the unknown number is 5.

The y-coordinate for the solution to the system of equations is 6.

Equation is a physical and mathematical statement the describing physical phenomenon the relationship between different physical quantity typically consist of variable simple presenting physical quantity and then it personal variable maybe pointed search is the energy.

The y-coordinate for the solution to the system of equations is 6. This is calculated by substituting the given y-value (2/3) into the equation -x+3y=9 and solving for x. Specifically, -x+3(2/3) = 9, which reduces to -x = 3. Therefore, x = -3 and substituting this value into the first equation yields 3y = 9, which simplifies to y = 3. Therefore, the y-coordinate for the solution to the system of equations is 6.

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Answer:

This is an obtuse triangle.

Step-by-step explanation:

Sure that are 2 acute angle but it is not acute, if it was acute, then it would have 3 acute angles. It might look like a right triangle, but the angle on the bottom left is actually past 90º. So it is an obtuse triangle. Hope this helped! Have a good day!

The two-sample t-test is a statistical test used to compare the means of two independent groups to determine if they are significantly different from each other.

The null hypothesis in a two-sample t-test states that there is no significant difference between the means of the two groups.

The test is performed by calculating the t-statistic, which is a ratio of the difference between the means of the two groups and the standard error of the difference. The t-statistic is then compared to a critical value from the t-distribution with degrees of freedom equal to the sum of the sample sizes minus 2.

If the calculated t-statistic is greater than the critical value, then the null hypothesis is rejected, and it is concluded that there is a significant difference between the means of the two groups. If the calculated t-statistic is less than the critical value, then the null hypothesis is not rejected, and it is concluded that there is not enough evidence to suggest a significant difference between the means of the two groups.

Therefore, the 2 sample t-test of null hypothesis has been explained

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Answer:

a) f(x) = (1/3)√(x-4)

b) f(x) = 4√(x+3)

c) f(x) = 6 - √(x - 2)

The instantaneous rate of change calculator is the tool that displays the rate of change

The change in the rate at a certain point is referred to as the instantaneous rate of change in mathematics. It is equivalent to the rate of change in a function's derivative value at a particular location. The obtained graph is identical to the slope of the tangent line if a graph for the instantaneous rate of change at a particular point is drawn.

A free online tool known as the Instantaneous Rate of change calculator shows the rate of change, the first-order differential equation for the specified function. This tool speeds up the calculation and shows the rate of change at a particular position in a split second. With time, the tool is now widely accepted and is often used is variety of calculations.

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The true statement is, 3) Each bag must contain at least 20 marbles.

We know The expected value, also known as the expectation, average, is a generalization of the weighted average in the field of probability theory.

The anticipated value is the arithmetic mean of a significant number of outcomes of a random variable that were independently chosen.

1. From the table, Piper's bag has definitely more pink marbles than Kai's.

2. If Piper chooses 15 more marbles he can expect (4/30)×15 = 2 orange marbles.

3. There can be green marbles in Kai's bag as the process is repeated only 20 times.

4. So, The true statement is each bag must have at least 20 marbles,

As the sum of different colored marbles is 20.

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Answer:

If Piper chooses 15 more marbles, she can expect 3 to be orange.

Answer:

  65 cm

Step-by-step explanation:

You want the perimeter of the shape that results from removing a 60° sector from a circle.

The curved edge of the shape is 5/6 of the circumference of the circle.

  5/6C = 5/6(2πr) = 5/6·2·π·(9 cm) = 15π cm ≈ 47 cm

Each straight edge of the shape has a length equal to the radius. Then the straight edges have a total length of ...

  2r = 2(9 cm) = 18 cm

The perimeter of the shape is the sum of the length of its curved edge and the lengths of the straight edges:

  P = 47 cm + 18 cm = 65 cm

The perimeter is about 65 cm.

__

Additional comment

A total circle is 360°, so 1/6 of the circle is 60°. The size of a sector of a circle can be described by the angle measure of its central angle. Here, that means the removed portion is a 60° sector.

Answer:

Step-by-step explanation:

(a) Here's a tree diagram for the sample space of all dinner combinations:

               Fish

          /      |      \

        /        |        \

    Salmon    Trout    Halibut

    / | \      / | \      / | \

 Fries Carrots Coleslaw  Fries Carrots Coleslaw

(b) To determine the total number of dinner combinations, we can multiply the number of fish options by the number of side dish options:

3 fish options * 3 side dish options = 9 dinner combinations

Therefore, Javier has 9 choices for dinner combinations.

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For dinner, Javier will choose one of three fish options and one of three side dishes. His choices for fish are salmon, trout, and halibut. His choices for side dishes are fries, cooked carrots, or coleslaw.

(a)Draw a tree diagram for the sample space of all dinner combinations.

(b)How many choices for dinner combinations does Javier have?

Answer:

Answer: y = 1.50x + 14

The sample is not approximately normal because (50) (0.02) is not equal to or greater than 10.

The conditions for performing a significance test using a z-statistic require a sample size large enough to satisfy the Central Limit Theorem, which means that the sample should be approximately normal. In this case, the expected number of adults who own a motorcycle in the sample is only 1, which is less than the threshold of 10 needed for approximate normality. Therefore, the sample distribution is not normal, and a z-statistic cannot be used for hypothesis testing. The other conditions, such as random sampling and independence, are not relevant to this particular issue.

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Complete question:

The proportion of American adults who own a motorcycle is 2%. Samip believes the proportion of adults who own a motorcycle in his hometown is even lower. He randomly surveys 50 adults from his hometown and finds that 3 of them own a motorcycle. Identify why the sample in this situation does not meet all three conditions to perform a significance test using a z-statistic

The sample is not large enough because (50) (1-0.02) is not equal to or greater than 10.

The sample was not randomly selected.

The sample does not have independence.

The sample is not approximately normal because (50) (0.02) is not equal to or greater than 10.

The conversion of 29 Celsius to Fahrenheit is 84.2.

Celsius and Fahrenheit are two common units of temperature measurement.

Celsius, also known as centigrade, is a temperature scale used in the metric system. It is defined by setting the freezing point of water at 0 degrees Celsius and the boiling point of water at 100 degrees Celsius at standard atmospheric pressure.

To convert 29 Celsius to Fahrenheit, you can use the following formula,

°F = (°C × 9/5) + 32

Plugging in the value of 29 Celsius, we get,

°F = (29 × 9/5) + 32

°F = (261/5) + 32

°F = 52.2 + 32

°F = 84.2

Therefore, 29 Celsius is equivalent to 84.2 Fahrenheit.

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Correct Question :

What is the conversion of 29 Celsius to Fahrenheit ?

If you arrived at a relative's house 45 seconds after leaving home, traveling 90 m, the speed was 2 meters per second.

To find out how fast you traveled, you need to use the formula for speed, which is distance divided by time. In this case, the distance is 90 meters and the time is 45 seconds.

So, you can plug these values into the formula to find your speed:
Speed = Distance / Time
Speed = 90 meters / 45 seconds
Speed = 2 meters per second

Therefore, you traveled at a speed of 2 meters per second. This means that you covered 2 meters in just one second. This is a relatively fast speed, especially if you were walking or running.

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The solution to the trigonometric equation given in the task content is; π / 2.

Given; sin x − cos² x - 1 = 0 in the interval [0, 2π].

Recall; cos² x = 1 - sin² x

Therefore; sin x − 1 + sin² x - 1 = 0

sin² x + sin x - 2 = 0

Let, y = sin x;

y² + y - 2 = 0

y = -2 or y = 1

Therefore, the valid value of y is; y = 1.

Therefore; 1 = sin x

x = sin-¹ (1)

x = 90° = π/2.

Consequently, the one solution which represents the solution as required is; π / 2.

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The solution to the system of inequalities is:

x ≥ -3.8 and

x ≤ 3

This can also be expressed as

-3.8 ≤ x ≤ 3

solving the first inequality:

-2x - 3x ≤ 19

Combining like terms, we get:

-5x ≤ 19

Dividing both sides by -5 :

x ≥ -3.8

So we have found that x is greater than or equal to -3.8.

From the second inequality:

-8x ≥ -24

Dividing both sides by -8:

x ≤ 3

So we have found that x is less than or equal to 3.

Therefore, the solution to the system of inequalities is:

-3.8 ≤ x ≤ 3

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Answer: 9. False

              10. True

              11. False

              12. False, it is called an isosceles triangle

Step-by-step explanation:

We can fill in the given blanks as follows:

x1 =6, x2 = 7 , y1 = -1,  y2 =3. The slope is 4.

What is meant by the slope of a line?

We have seen lines drawn on the coordinate plane in geometry. The best approach to determine without using any geometrical tools if the lines are parallel, perpendicular, or at any angle is to measure the slope. A line's steepness can be determined by looking at its slope. A line's slope in mathematics is defined as the ratio of the change in the y coordinates to the change in the x coordinates. By calculating the difference between the coordinates of the two points, (x1,y1) and (x2,y2), it is simple to calculate the slope of a straight line between them. The letter "m" is frequently used to denote slope.

Given,

(x1, y1)  = (6, −1)

(x2, y2) = (7, 3)

The slope of the line = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex] = 3 -(-1) / 7-6 = 4/1 = 4

Therefore we can fill in the given blanks as follows:

x1 =6, x2 = 7, y1 = -1,  y2 =3. The slope is 4.

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