Geometry!!! Please help!!!​

The qualitative data collection method described, where the researcher meets with one participant and asks pre-determined questions using a topic guide, is commonly known as an "interview." Interviews are a form of qualitative data collection where the researcher engages in a direct conversation with the participant to gather information and insights related to the research topic. The questions are typically structured or semi-structured, allowing for flexibility and deeper exploration of the participant's experiences, perspectives, and opinions.

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Answer is in the image

Step-by-step explanation:

Sorry if wrong or blurry

Answer:

Step-by-step explanation:

4 x 14= 56

Answer:

150x÷×÷320y

Step-by-step explanation:

it's hard to tell in writing I can speak it but

Written as a fraction, the amount is 17/20 .

But a fraction actually means "division".  When you see "17/20", it means "17 divided by 20".

If you actually go ahead and DO the division problem (with a pencil or on your calculator) that the fraction is talking about, the answer you get is the same amount as the fraction, but written as a decimal.

The same amount as 17/20, written as a decimal, is 0.85 .

The same amount as 17/20, written as a percent, is  85% .

Notice that the relation between the first two figures is that the outside figure becomes the inside figure, and the inside figure becomes the outside figure.

Therefore the triangle inside the square corresponds to the square inside the triangle.

Answer: Option A.

Answer:

123

Step-by-step explanation:

The solution to the equation 3(x-6) - 1/2(8x+10) = -25 is x = 2.

To simplify the equation 3(x-6) - 1/2(8x+10) = -25, we can start by applying the distributive property and then combining like terms.

First, let's distribute the 3 and the -1/2 to the terms inside the parentheses:

3(x-6) - 1/2(8x+10) = 3x - 18 - (4x + 5)

Now, let's simplify further by combining like terms:

3x - 18 - 4x - 5 = -x - 23

So, the simplified equation is -x - 23 = -25.

To solve for x, we can isolate the variable by adding 23 to both sides of the equation:

-x - 23 + 23 = -25 + 23

This simplifies to:

-x = -2

Finally, we can solve for x by multiplying both sides of the equation by -1:

(-1)(-x) = (-1)(-2)

This gives us:

x = 2

Therefore, the solution to the equation 3(x-6) - 1/2(8x+10) = -25 is x = 2.

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9514 1404 393

Answer:

  3.31227766..., irrational

Step-by-step explanation:

  3/20 +√10 = 0.15 + 3.16227766017...

The root of 10 is irrational, so adding that to a rational number will give an irrational sum.

The sum is about 3.31227766017..., an irrational number.

Answer:

A

Step-by-step explanation:

Answer:

The angle between f and g is approximately 53.13 degrees.

a. The formula for NPV is NPV = (Benefits - Costs) / (1 + Discount Rate)^n.

b. Plugging in the appropriate values, Benefits: $500 (Year 1), $4,000 (Year 2), and $7,000 (Years 3-5); Costs: $20,000 (initial payment), $1,000 (yearly maintenance from Year 2); Discount Rate: 6%.

c. The city should use a positive NPV as a criterion to decide whether to install the filtration system or not.

a. The general mathematical formula to determine the net present value (NPV) of this project is as follows:

NPV = (Benefits - Costs) / (1 + Discount Rate)^n

Where:

Benefits represent the cash inflows or benefits received from the project in each period.

Costs refer to the initial investment or cash outflows required to undertake the project.

Discount Rate is the rate used to discount future cash flows to their present value.

n represents the time period (year) when the cash flow occurs.

b. Plugging in the appropriate numbers into the formula:

Benefits: $500 in Year 1, $4,000 at the end of Year 2, and $7,000 for Years 3, 4, and 5.

Costs: Initial payment of $20,000 and yearly maintenance costs of $1,000 from Year 2 onwards.

Discount Rate: 6%.

n: 1 for Year 1, 2 for Year 2, and 3, 4, and 5 for Years 3, 4, and 5, respectively.

c. The city should use the criteria of positive net present value (NPV) to decide whether to install the filtration system or not. If the NPV is greater than zero, it indicates that the present value of the benefits exceeds the costs, suggesting that the project is financially favorable and would generate a positive return.

Conversely, if the NPV is negative, it implies that the costs outweigh the present value of the benefits, indicating a potential financial loss. Therefore, a positive NPV would indicate that the city should proceed with installing the filtration system, while a negative NPV would suggest not undertaking the project.

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Note this question belongs to the subject Business.

The value of k in the equations is 2/3

From the question, we have the following parameters that can be used in our computation:

y = 9kx - 1

kx + 4y = 12

This can be expressed as

y = 9kx - 1

y = -kx/4 + 3

The slopes of perpendicular lines are opposite reciprocal

This means that

9k * -k/4 = -1

So, we have

k^2 = 4/9

Evaluate

k = 2/3

Hence, the value of k is 2/3

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The chicken will weigh 3 pounds when it is 10,000 miles from the earth's center.

There are two types of proportions.

1) Direct Proportion - shows the direct relationship between two quantities. It can be represented by the equation y = kx. As one quantity increases, the other quantity also increase.

2) Inverse Proportion - describes the indirect relationship between two quantities.  It can be represented by the equation y = k/x. As one quantity increases, the other quantity decreases.

According to the problem, a body’s weight varies inversely with the square of its distance from the center of the earth.

y = k/x

let y = a body's weight

x = square of its distance from the center of the earth

Solving for the proportionality constant, k.

y = k/x

12 = k / (5000^2)

k = 12 x 25, 000, 000

k = 300, 000, 000

The equation for the relationship in the problem can now be represented by:

y = 300,000,000/x

where

y = a body's weight

x = square of its distance from the center of the earth

Evaluating the new equation where x = square of 10,000:

y = 300,000,000/x

y = 300,000,00/(100,000,000)

y = 3

Hence, the chicken will weigh 3 pounds when it is 10,000 miles from the earth's center.

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Answer:

a.) terry didn't line up the triangle correctly. 4/y = 20/18

b.) (20+16)/18

Step-by-step explanation:

for part a, you have to make sure the angles line up correctly (the angle with one tick mark lining up with the angle with one tick mark, the angle with two tick marks lining up with the angle with two tick marks, etc.)

for part b.) you just put the proportional lengths of the bigger triangle in for the lengths of the smaller triangle.

Answer:

\(5mn^{2} (2+ 5m^{2} n)\)

Step-by-step explanation:

I assumed the polynomial is \(10mn^{2} +25m^{3}n^{2}\)

FIRST: Highlight the common factors{ 5 , m and\(n^{2}\))

\(5mn^{2} (2+ 5m^{2} n)\)

By combination, there are 2346953264 ways to do so.

What is the example of combination?

Total number of selected countries = 12

Number of selected countries from a block of 45 = 3

Number of selected countries from a block of 57 = 4

So, remaining number of selected countries from a block of 69.

So, 12-(3+4)=12-7=5

=  ⁴⁵C₃ × ⁵⁷C₄ × ⁵⁷C₅

=  14190 × 395010 × 4187106

= 2346953264

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Answer:

5=9+7w

Step-by-step explanation:

We know that the final solution will be 5, so that can be on a side by itself.

The keyword to see is a product, which means multiplication.  It says "a number (w) and 7" which means it is the unknown number multiplied by 7.

Lastly, we add 9 to 7(w) because it says "nine more than the product," which means you add 9

Answer:

\(k = 1 - \frac{ \sqrt{313} }{26} \)

\(k = \frac{ \sqrt{313} }{26} + 1\)

Answer:

896 cubic inches

Step-by-step explanation:

V (Δ prism) = 1/2 · height · base · length

V (top prism) = 1/2(6)(12)(14)

V (top prism) = 504 in³

V (bottom prism) = 1/2(7)(8)(14)

V (bottom prism) = 392 in³

504 + 392 = 896

Answer:

fx/gx=10

Step-by-step explanation:

fx= (36x5)-(44x4)-(28x3)

fx=80

gx= 4x2

gx=8

To work out fx/gx:

fx/gx=80/8

fx/gx=10

The margin of error in a level-C confidence interval is the maximum distance between the sample statistic and the population parameter in any random sample of the same size from that population

In a level-C confidence interval about the proportion p of some outcome in a given population, the margin of error (m) represents the maximum distance between the sample statistic and the population parameter in any random sample of the same size from that population.

The margin of error is a measure of the precision or uncertainty associated with estimating the true population proportion based on a sample. It reflects the variability that can occur when different random samples are taken from the same population.

When constructing a confidence interval, a level-C confidence level is chosen, typically expressed as a percentage. This confidence level represents the probability that the interval contains the true population parameter. For example, a 95% confidence level means that in repeated sampling, we would expect the confidence interval to contain the true population proportion in 95% of the samples.

The margin of error is calculated by multiplying a critical value (usually obtained from the standard normal distribution or t-distribution depending on the sample size and assumptions) by the standard error of the sample proportion. The critical value is determined by the desired confidence level, and the standard error accounts for the variability in the sample proportion.

The margin of error provides a range around the sample proportion within which we can confidently estimate the population proportion. It represents the uncertainty or potential sampling error associated with our estimate.

To summarize, the margin of error in a level-C confidence interval is the maximum distance between the sample statistic and the population parameter in any random sample of the same size from that population. It accounts for the variability and uncertainty in estimating the true population proportion based on a sample, and it helps establish the precision and confidence level of the interval estimation.

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Answer:

uniform width around the landing pad = 9.41 feet

Step-by-step explanation:

Length of landing pad = 80 ft

width of landing pad = 50 ft

Length of safety zone = (80 + 2w)

width of safety zone = (50 + 2w)

Total area = 10800 \(ft^{2}\)

Area of landing pad = length x width

                                  = 80 x 50

                                  = 4000 \(ft^{2}\)

Area of landing pad = 4000 \(ft^{2}\)

Thus,

area of safety zone = total area - area of landing pad

                                 = 10800 - 4000

                                 = 6800

area of safety zone = 6800 \(ft^{2}\)

But,

area of safety zone = length x width

6800 = (80 + 2w) x (50 + 2w)

6800 = 4000 + 160w + 100w + 4\(w^{2}\)

divide through by 4,

1700  = \(w^{2}\) + 65w + 1000

⇒ \(w^{2}\) + 65w + 1000 - 1700 = 0

\(w^{2}\) + 65w -700 = 0

Applying the quadratic formula,

w = (-b ± \(\sqrt{b^{2} -4ac}\)) ÷ 2a

a = 1, b= 65 and c = -700

w = (-65 ± \(\sqrt{(65)^{2}-(4*1*-700) }\)) ÷ 2

   = (-65 ± \(\sqrt{7025}\)) ÷ 2

   = (-65 ± 83.82)÷ 2

w = (-65 + 83.82) ÷ 2 OR (-65 - 83.82) ÷ 2

   = 18.82 ÷ 2 OR -148.82 ÷ 2

   = 9.41 OR -74.41

Thus, w = 9.41 ft.  

The music box has a surface area of 1350 square cm.

A cube has six square faces that are all the same size. The length of each side of the cube is given as 15 cm. Therefore, the surface area of the cube can be found by calculating the area of one square face and then multiplying it by 6:

Area of one square face = (15 cm) x (15 cm) = 225 square cm

The surface area of the cube = 6 x (Area of one square face)

= 6 x 225 square cm

= 1350 square cm

As a result, the music box has a surface area of 1350 square cm.

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The equation of the line that passes through (-4,1) and is perpendicular to the line y= -1/2x + 3​.

We are given that;

Point= (-4,1)

Equation y= -1/2x + 3​

Now,

To find the y-intercept, we can use the point-slope form of a line: y - y1 = m(x - x1), where m is the slope and (x1,y1) is a point on the line. Substituting the values we have, we get:

y - 1 = 2(x - (-4))

Simplifying and rearranging, we get:

y = 2x + 9

Therefore, by the given slope the answer will be y= -1/2x + 3​.

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The area of the rectangular parking lot is 929.03 square meters.

Use the formula for the area of a rectangle to calculate the area of the rectangular parking lot, which is given as:

Area = length × width

We know that the parking lot is 67.5 ft wide and 148 ft long, the area can be calculated as follows:

Area = 67.5 ft × 148 f

t= 9990 sq. ft

However, the question asks for the area in square meters, so we need to convert square feet to square meters. 1 square foot is equal to 0.092903 square meters, so we can use this conversion factor to convert square feet to square meters.

Area in square meters = Area in square feet × 0.092903

= 9990 sq. ft × 0.092903

= 929.03 sq meters

Therefore, the area is 929.03 square meters.

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The price per square meter from least to greatest is 1.07, 12.01, 12.50.

The area of Rectangle is length times of width.

The table shows the monthly rent of each apartment.

Apartment             Size(m²)            Monthly rent

A                              75                         830

B                               84                         1050

C                               102                        1225

Now we have find the rent per square meter of each apartment.

To find rate per square meter, we have to divide the rent by the number square meters rented out.

Apartment A = 830/75 = 11.07

Apartment B = 1050/84 =12.50

Apartment C = 1225/102 = 12.01

From least to greatest is 11.07, 12.01, 12.50

Hence,  11.07, 12.01, 12.50 is the price per square meter from least to greatest.

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The complete question is given in the attachment.

Answer:

It’s 3,1 pretty sure

Step-by-step explanation: