2k-3/-5 >7 can anyone solve this for me

The given scenario, where a sample of teen drivers at a high school is surveyed about their engagement in the illegal activity of texting while driving, is an example of Selection bias. Option C

Selection bias occurs when the process of selecting participants for a study or survey is not random or representative of the entire population.

In this case, the sample consists only of teen drivers at a high school, which may not accurately represent all teen drivers in the broader population. The sample is limited to a specific group, which can introduce bias and affect the generalizability of the results to the wider population of teen drivers.

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If the cylinders are made out of wood that costs $11.07 per cubic foot, the cost of the cylinder will be $782.10

The volume of a cylinder is expressed as:
V = πr²h

h is the height = 40ft

r is the radius  = 1.5/2 = 0.75ft

Substitute:

V = π(0.75)²(40)
V = 3.14 * (0.75)²(40)

V = 70.65 cubic foot

If the cylinders are made out of wood that costs $11.07 per cubic foot, the cost of the cylinder will be 11.07 * 70.65 = $782.10

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Answer:

answer is A

Step-by-step explanation:

hope this helps!

Answer:

1.2

Step-by-step explanation: it just is

\(\huge\bold{Given:}\)

Length of the perpendicular "\(a\)" = 5.

Length of the hypotenuse "\(c\)" = 12.

\(\huge\bold{To\:find:}\)

The length of the missing side ''\(b\)".

\(\large\mathfrak{{\pmb{\underline{\orange{Solution}}{\orange{:}}}}}\)

The length of the missing side (base) "\(b\)" is \(\boxed{√119}\).

\(\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}\)

Using Pythagoras theorem, we have

\(({perpendicular})^{2} + ({base})^{2} = ({hypotenuse})^{2} \\ \\⇢ {a}^{2} + {b}^{2} = {c}^{2} \\\\ ⇢ {5}^{2} + {b}^{2} = {12}^{2} \\ \\⇢25 + {b}^{2} = 144 \\ \\⇢ {b}^{2} = 144 - 25 \\ \\⇢ {b}^{2} = 119 \\ \\⇢b = \sqrt{119} \)

\(\sf\blue{Therefore,\:the\:length\:of\:the\:missing\:side\:"b"\:is\:√119.}\)

\(\huge\bold{To\:verify :}\)

\( {5}^{2} + { \sqrt{119} }^{2} = {12}^{2} \\\\ ⇝25 + 119 = 144 \\ \\⇝144 = 144 \\ \\⇝L.H.S.=R. H. S\)

Hence verified. ✔

\(\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{♡}}}}}\)

To divide 30 into five parts such that the first and last parts are in the ratio of 2:3, we can follow these steps:

1. Determine the ratio between the first and last parts. In this case, it is 2:3.

2. Add the ratio values together to find the total number of parts: 2 + 3 = 5.

3. Divide the total value (30) by the total number of parts (5) to find the value of each part: 30 / 5 = 6.

4. Multiply the value of each part by the respective ratio values to obtain the individual parts:

- First part: 2 * 6 = 12

- Second part: 6

- Third part: 6

- Fourth part: 6

- Last part: 3 * 6 = 18

Therefore, the five parts of 30, with the first and last parts in the ratio of 2:3, are 12, 6, 6, 6, and 18.

There are a total of 279 1/9s in 31.

Simplifying procedures is one way to achieve uniformity in job efforts, expenses, and time. It reduces diversity and variation that is pointless, harmful, or unneeded. Parenthesis, exponents, multiplication, division, addition, and subtraction are all referred to as PEMDAS. The order of the letters in PEMDAS informs you what to calculate first, second, third, and so on, until the computation is finished, given two or more operations in a single statement.

To find out how many 1/9's are in 31, you can divide 31 by 1/9.

This can be simplified by converting the division of a fraction to multiplication with its reciprocal:

31 ÷ (1/9) = 31 × (9/1)

Simplifying the expression on the right side gives:

31 × 9 = 279

So there are 279, 1/9's in 31.

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The equation to find Shanti's age is y = x - 3 where y is Shanti's age.

Given,

Shanti's sister Uri is Shanti's age plus 3 years.

Uri is 7 years old.

We need to write an equation to find Shanti's age.

We have,

Uri age = Shanti age + 3______(1)

Uri = 7 years old

Putting in (1)

We get,

Uri age = Shanti age + 3

7 = Shanti age + 3

Subtracting 3 on both sides.

7 - 3 = Shanti age + 3 - 3

4 = Shanti age

We see that Shanti's age is 4 years old.

If we have to write an equation then,

Consider Uri's age to be x and Shanti's age to be y.

Now,

Uri age = Shanti age + 3

x = y + 3

Subtracting 3 on both sides

x -3 = y

y = x - 3 is our equation.

Thus the equation to find Shanti's age is y = x - 3.

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The people that would not be sampled would be:

We have to do this by considering the people that would be seen present in the roster of the school. The people that are dropouts as well as homeschooled cannot appear in a school register because they are not students.

The students that are sick and on the trip are all students of the high school so they can be included in the sampling that is being done by the school.

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Yes, Timothy is correct because triangle AKLM was dilated by using a scale factor of 1.5 centered at the origin.

In Mathematics, dilation can be defined as a type of transformation that is typically used for enlarging or reducing the size of a geometric object but not its shape, based on the scale factor.

For the given coordinates of the preimage triangle KLM, the dilation with a scale factor of 1.5 from the origin (0, 0) would be calculated as follows:

Coordinate K (-1, 3) → Coordinate K' (-1 × 1.5, 3 × 1.5) = Coordinate K' (-1.5, 4.5).

Coordinate L (8, 4) → Coordinate L' (8 × 1.5, 4 × 1.5) = Coordinate L' (12, 6).

Coordinate M (10, -3) → Coordinate M' (10 × 1.5, -3 × 1.5) = Coordinate M' (15, -4.5).

In conclusion, the coordinates of the image triangle K'L'M after a dilation with a scale factor of 1.5 from the origin are (-1.5, 4.5), (12, 6), and (15, -4.5) as shown in the graph above, therefore, Timothy is correct.

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Answer:

The general equation of circle is given by:

(x-h)² + (y-k)² = r², where, (h,k) is the center and 'r' is the radius of circle.

Here, (h , k) = (0, 0) and r = 12

∴ Equation of circle is (x-0)² + (y-0)² = 12²

or, x² + y² =144

The arc VQRST spans half the circle, so it measures 180 degrees. It's made up of the minor arcs VQ, QR, RS, and ST, so their measures all add up to 180 degrees.

\((y+7) + (x+11) + 3y + 65 = 180 \implies x + 4y = 97\)

The arc QRS is subtended by a right angle, so it measures 90 degrees. It's made up of arcs QR and RS, so

\((x+11) + 3y = 90 \implies x + 3y = 79\)

Solve for \(x,y\). Eliminating \(x\), we have

\((x+4y) - (x + 3y) = 97 - 79 \implies \boxed{y = 18}\)

Substituting this into either equation, we find

\(x + 4\cdot18 = 97 \implies \boxed{x=25}\)

Answer:

2827 m²

Step-by-step explanation:

The equation for volume of a sphere is:

\(V=\frac{4}{3}\pi r^3\)

Using this equation and the given volume of the sphere, we can find the radius of the sphere.

\(V=\frac{4}{3}\pi r^3\)

\(4500\pi = \frac{4}{3}\pi r^3\)

Divide both sides by π

\(4500=\frac{4}{3}(r^3)\)

Multiply both sides by 3

\(13500=4( r^3)\)

Divide both sides by 4

\(3375=r^3\)

Take the cube root of both sides

\(r=15\)

Thus the radius of the sphere is 15m. We can use this information to find the surface area of the sphere.

The equation for surface area of a sphere is \(4\pi r^2\). Substituting the value we found for the radius into the equation, we find:

\(SA=4\pi r^2\\SA=4\pi 15^2\\SA=4\pi 225\\SA=900\pi\\SA\approx2827$ m^2\)

The surface area of the sphere, rounded to the nearest square meter, is 2827 m².

You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.

Businesses, a noun in plural. a group of people who are connected or who have joined together. a guest or guests: We're having people over for dinner. a collection of individuals together for social purposes. association, camaraderie, and fellowship She is a lot of joy to be around.

The Old French word "compagnie," which was first used in the Salic code and meaning "one who eats bread with you," is where the English word "company" originates. To describe a "society, friendship, closeness, or body of troops," it was first used in 1150.

You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.

Total Amount to be when start the company is $12000 + $12000

= $24000

Out of which company owns land and a building worth $8,878 and equipment worth $4,230 and have retained $1,291 in earnings to be reinvested in the company, and you decided to put $1,000 of it aside for a long-term investment.

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Answer:

18 chicken wings

Step-by-step explanation:

28.5/15=1.9

34.2/1.9=18

18 chickens were bought for $34.30.

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

Number of chicken bought = 15

Cost of 15 chickens = $28.50

This means,

15 chickens = $28.50

1 chicken = 28.50/15

1 chicken = $1.9

Now,

The number of chickens bought with $34.20.

= 34.20 ÷ 1.9

= 18

Thus,

18 chickens were bought for $34.30.

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The figure is indeed symmetric and the number of lines of symmetry the snowflake has is C. Yes; 6 lines of symmetry.

Generally a snowflake is hexagonal and has 6-way radial symmetry. Thus, one can rotate it 60 degrees (the sixth of full rotation) and it still appears the same.

So, overall, this means that a snowflake holds 6 lines of symmetry which divide it into two identical halves reflecting each other. Consequently, it can be rotated in 60-degree increments and still holds identicality. Akin to this final property, the snowflake artifact possesses six uniquely divided

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Answer:

C

Step-by-step explanation:

Let me know if you need an explanation

The formula for y in terms of x and c is given as follows:

\(y = \frac{c^5}{\sqrt{x}}\)

A proportional relationship is a type of relationship between two quantities in which they maintain a constant ratio to each other. This means that if one quantity is multiplied by a certain factor, the other quantity will also be multiplied by the same factor.

The equation that defines the proportional relationship is given as follows:

y = kx.

In which k is the constant of proportionality, representing the increase in the output variable y when the constant variable x is increased by one.

An inverse proportional relationship is modeled as follows:

y = k/x.

In this problem, we have that y is inverse proportional to the square root of x, hence the equation is given as follows:

\(y = \frac{k}{\sqrt{x}}\)

When x = c², y = c^4, hence the constant k is obtained as follows:

\(c^4 = \frac{k}{\sqrt{c^2}}\)

k/c = c^4

k = c^5.

Hence the equation is:

\(y = \frac{c^5}{\sqrt{x}}\)

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The total principal and interest payment that Nelson will have to pay after 2 months is $4665.50.

To calculate the total principal and interest payment, we need to determine the interest amount and add it to the principal.

First, let's find the interest amount:

Interest = Principal x Interest Rate x Time

Given:

Principal = $4650

Interest Rate = 2% per year

Time = 2 months

Since the interest rate is given on an annual basis, we need to convert the time from months to years. There are 12 months in a year, so 2 months is equivalent to 2/12 = 1/6 years.

Interest = $4650 x 0.02 x (1/6) = $15.50

Now, we can calculate the total principal and interest payment:

Total Payment = Principal + Interest

Total Payment = $4650 + $15.50 = $4665.50

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Answer:

They sold 576 chocolate shakes.

Step-by-step explanation:

Ratio of chocolate to vanilla being 6:9.

This means for each 6 + 9 = 15 shakes sold, 6 were of chocolate and 9 were of vanilla.

How many chocolate shakes did they sell?

Using proportions

6 chocolate - 15 shakes

x chocolate - 1440 shakes

\(15x = 1440*6\)

\(x = \frac{1440*6}{15}\)

\(x = 576\)

They sold 576 chocolate shakes.

Answer:

They sold 576 chocolate shakes.

Step-by-step explanation:

Ratio of chocolate to vanilla being 6:9.

This means for each 6 + 9 = 15 shakes sold, 6 were of chocolate and 9 were of vanilla.

How many chocolate shakes did they sell?

Using proportions

6 chocolate - 15 shakes

x chocolate - 1440 shakes

They sold 576 chocolate shakes.

THANKS  

0

The number of pages of the album which are filled with compact discs as required is; 68.

As evident in the task content; since the album holds 500 compact discs and Each page of the album holds 5 compact discs.

It follows that there are 100 pages in the album.

Hence, since 32% of the album is empty; (100 - 32)% of the album is filled.

Therefore, the number of pages filled with compact discs is; (68/100) × 100 = 68 pages.

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Amy's claim is correct because each pair of the angles are supplementary. That is, sum up to 180°

From the question, we are to determine if Amy's claims are correct

From the given information,

Amy claims that

m∠4 + m∠5 = m∠10 + m∠9

In the diagram, we can observe that

m∠4 + m∠5 = 180°

This is because the pair of interior angles on the same side of the transversal are supplementary. That is, sum up to 180°

Also,

m∠10 + m∠9 = 180° (Sum of angles on a straight line)

Since each pair of angles are supplementary,

∴ m∠4 + m∠5 = m∠10 + m∠9

and

Hence, Amy's claim is correct

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So the new coordinates of point C are (1, 2), and the image of Triangle ABC is congruent to the original triangle.

A triangle is a closed, two-dimensional geometric figure with three straight sides and three angles. It is one of the basic shapes in geometry and can be classified based on the length of its sides or the size of its angles. A triangle with all sides of equal length is called an equilateral triangle, while a triangle with two sides of equal length is called an isosceles triangle. A triangle with no sides of equal length is called a scalene triangle. Triangles can also be classified based on the size of their angles, with an acute triangle having all angles less than 90 degrees, a right triangle having one angle equal to 90 degrees, and an obtuse triangle having one angle greater than 90 degrees.

Here,

To find the new coordinates of point C after the rotation and translation, we need to perform each transformation separately and then combine them.

Rotation:

To rotate a point 180° counterclockwise about the origin, we switch the sign of both coordinates. Therefore, the new coordinates of point C after the rotation are (-3, -2).

Translation:

To translate a point to the right 4 and up 4, we add 4 to the x-coordinate and 4 to the y-coordinate. Therefore, the new coordinates of point C after the translation are (1, 2).

To determine if the image of Triangle ABC is similar or congruent to the original triangle, we need to compare the corresponding sides and angles of both triangles.

Since we performed a rotation of 180°, all the angles in the image triangle are congruent to the corresponding angles in the original triangle. Additionally, since we performed a translation, the sides of the image triangle are congruent to the corresponding sides of the original triangle. Therefore, the image triangle is congruent to the original triangle.

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Answer:it means nothing i think

Step-by-step explanation:ive never seen that and im doing well in math so i dont think it means anything

200 pounds need to collect to earn the $50.00. Divide the cost per pound from the total amount needed, \(\frac{50.00}{0.25}\)= 200 pounds.

The official money of the U.k. and its regions is the GBP, or British pound sterling. The Pound is the earliest currency that is still accepted as legal tender in the entire world. The GBP, represented by pound sign (£), has one of the greatest trade volumes worldwide.

The development of the pounds sterling -The Latin word "libra," which means balance and weight, is where the name "pound sterling" comes from. During the years, the pound banknotes underwent various revisions before being initially printed by the Bank of England and over 300 years ago.

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A more modern explanation would be, "Parallel lines are two lines within a given plane that never intersect."

Two lines on a sphere are an illustration that defies the notion of parallel lines. Meridians are the name given to longitude lines on spheres like the Earth.

Meridians are lines that run parallel to one another from the North Pole to the South Pole. However, if we take into account two meridian lines, they will cross at the North and South Poles. Two lines that are originally parallel will, therefore, eventually intersect at the poles on a sphere, defying the notion of parallel lines.

We can change the original definition of parallel lines to read, "Parallel lines are two lines that do not intersect within a given plane."

This adjustment accounts for the fact that lines can exist in many geometrical contexts, such as on a sphere or in three-dimensional space, where the idea of parallelism may be different. By including the phrase "within a given plane," we restrict the concept to the typical geometry seen in Euclidean geometry, where parallel lines do not meet.

A newer definition may therefore read, "Parallel lines are two lines within a given plane that never intersect." This updated definition makes clear that parallel lines must be taken into account inside a certain plane in order to maintain their validity, while also acknowledging the limitations of the idea.

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Answer:

60 = a

Step-by-step explanation:

I attached a pic of how I got 60 = a

Answer:

1

Step-by-step explanation:

3(x + 3) = 12

Multiply 3 by both numbers in the parentheses.

3x + 9 = 12

Subtract 9 from both sides of the equation.

3x = 3

Divide 3 from both sides of the equation.

x = 1

This graph does not have an Euler circuit, which means it is not possible to find a circuit through the house that uses each doorway once.

Hence, the answer is DNE.

An Euler circuit is only possible in a connected graph where every vertex has an even degree (i.e., an even number of edges incident to it). If any vertex has an odd degree, then an Euler circuit is not possible. If a graph has an Euler circuit, then it also has an Euler path, which is a path that visits every edge exactly once but starts and ends at different vertices.

To draw a graph that models the connecting relationships in the floorplan, we can represent each room as a vertex and connect vertices with edges to represent doorways connecting the rooms. We can label the vertices with the corresponding letters and label the edges with the corresponding letters of the connected vertices.

To determine whether it is possible to find a circuit through the house that uses each doorway once, we can use the Euler's circuit theorem, which states that a connected graph has an Euler circuit if and only if every vertex has an even degree. In this graph, vertices A, B, C, D, and E all have degree 3 (three edges connected to each vertex), while vertex F has degree 1 (one edge connected to the vertex).

Therefore, this graph does not have an Euler circuit, which means it is not possible to find a circuit through the house that uses each doorway once.

Hence, the answer is DNE.

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