Somebody please help me I’ve been stuck for so freaking long and I have no idea what to do, somebody please help

Answer:

The measure of ABC is 72

Step-by-step explanation:

if the angle ABC is bisected, it means that the two angles ABD and DBC are equal;

Thus;

12x + 24 = 20x + 16

20x -12x = 24-16

8x = 8

x = 1

The measure of angle ABC is the sum of the two angles

ABC = 12x + 24 + 20x + 16

ABC = 32x + 40

Substitute x = 1

ABC = 32(1) + 40

ABC = 72 degrees

The 95% confidence interval for μ is (80.52, 82.68).

To find the 95% confidence interval for the population mean (μ), we can use the following formula

CI = X ± z* (σ / √n)

where X is the sample mean, σ is the population standard deviation (unknown), n is the sample size, and z* is the critical value from the standard normal distribution corresponding to the desired confidence level (in this case, 95%).

The critical value z* can be found using a standard normal distribution table or calculator, or using a statistical software. For a 95% confidence level, the z* value is 1.96.

Plugging in the values given, we get

CI = 81.6 ± 1.96 × (5.4 / √100)

Simplifying this expression, we get

CI = 81.6 ± 1.08

=  (80.52, 82.68)

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The given question is incomplete, the complete question is:

A random sample of 100 observations from a normally distributed population possesses a mean equal to 81.6 and a standard deviation equal to 5.4 .  Find a 95% confidence interval for μ

Answer:

46

Step-by-step explanation:

Answer: I really don’t know

Step-by-step explanation: I need help with this as well. I’m really sorry if you were looking for a real answer

A customer would  be charged $ 52 for an international phone call that started at 9:35 p.m. and ended at 11:15 p.m. the same day.

Charge for first 5 charged = $ 4.50

Charge for additional time = $ 0.50 per minute

Starting time = 9:35 p.m.

End time = 11:15 p.m.

Total minutes = 100 minutes

Total charge = 4.50 + (95 x 0.50)

                  = 4.50 + 47.50

                  = 52.00

Hence, a customer would  be charged $ 52 for an international phone call that started at 9:35 p.m. and ended at 11:15 p.m. the same day i.e. for 100 minutes.

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The approximate internal rate of return (IRR) on this project is approximately 17.06%.The IRR is expressed as a percentage and serves as an indicator of the project's profitability.

To calculate the approximate internal rate of return (IRR) for the project, we need to find the discount rate at which the present value of cash inflows equals the initial investment cost. Here are the steps to solve this question:

Step 1: Calculate the present value (PV) of cash inflows:

PV = Cash inflow / (1 + Discount rate)^n

Where:

Cash inflow = $36,000 (annual cash inflow)

Discount rate = Rate of return / 100 (convert percentage to decimal)

n = Number of years

Given:

Rate of return = 8%

Initial investment cost = $91,116

Cash inflow = $36,000 (for 3 years)

Step 2: Set up the equation:

\(\$91,116 = \\$36,000 / (1 + Discount rate)^1 + $36,000 / (1 + Discount rate)^2 + $36,000 / (1 + Discount rate)^3\)

Step 3: Solve for the discount rate (IRR):

To solve this equation, use numerical methods like trial and error, or use spreadsheet software or financial calculators that have built-in functions to calculate the IRR. These tools can provide the exact IRR.

Approximately, the internal rate of return (IRR) on this project is 17.06%.

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Answer:

2.1 litres

Step-by-step explanation:

the 5 part of the ratio refers to 3.5 litres of red paint

divide this amount by 5 to find the value of one part of the ratio

3.5 litres ÷ 5 = 0.7 litres ← value of 1 part of the ratio , then

3 parts = 3 × 0.7 litres = 2.1 litres ← amount of blue paint used

The standard deviation of a point estimator is a measure of the variability or spread of the sampling distribution of the estimator.

n statistical inference, a point estimator is a statistic used to estimate an unknown population parameter based on sample data. The point estimator provides a single value or point estimate that serves as an estimate of the parameter of interest.

However, due to sampling variability, the estimates obtained from different samples are not expected to be exactly the same. The standard deviation of the point estimator quantifies this variability. It represents the typical amount by which the estimates from different samples deviate from the true population parameter.

A smaller standard deviation of the point estimator indicates that the estimates from different samples are more likely to be close to the true population parameter. Conversely, a larger standard deviation suggests that the estimates are more likely to be scattered further away from the true parameter.

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The amount of RNA transcribed from promoter gene, which can consequently influence the amount of protein made from this gene. So the option c is correct.

A gene's DNA sequence is duplicated during transcription in order to create an RNA molecule.

The primary transcribed enzyme is called RNA polymerase.

RNA polymerase connects to a promoter sequence close to the start of a gene to start transcription (directly or through helper proteins).

A new, complementary RNA molecule is created by RNA polymerase using a template from one of the DNA strands (the template strand).

Termination is the procedure that brings transcription to a conclusion. The RNA sequences that indicate that the transcript is done are what determine when a process is terminated.

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The complete question is:

How frequently RNA polymerase binds to DNA sequence

a. length of RNA transcribed from the gene

b. precise sequence of RNA transcribed from this gene

c. amount of RNA transcribed from promoter gene, which can consequently influence the amount of protein made from this gene

When two of the six membered rings are represented in chair conformations, the connection between these two rings is analogous to cyclohexane bridge.

A "cyclohexane bridge," where the two six-membered rings are connected by two carbon atoms, which act as a bridge between them. The conformation of this bridge can vary, and it is often depicted as a zigzag line in organic chemistry diagrams.

The exact conformation of the bridge and the two chair conformations of the rings will depend on the specific molecule being discussed.

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-- The given question is incomplete, the complete question is

"When two of the six membered rings are represented in chair conformations, the connection between these two rings is analogous to _______" --

The graph with the least standard deviation is the graph A.

We define the standard deviation as a measure of the "average distance" between the data points and the mean of the data points.

Notice that in each of these graphs, the mean would be the value where the "peak" of the bell is.

So, as "narrower" is the bell, the least standard deviation that data set has.

Then the option with the least standard deviation must be A.

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Answer:

j=60

Step-by-step explanation:

j=60

I multiplied. 6*10=60. Then I checked to see if it made sense.

60/6=10. Yes, it is valid.

Answer:

j= 60

Step-by-step explanation:

To find j multiply 6 by 10 which is 60.

When you replace j with 60 it will make sense as 60 / 6 is 10.

HOPE THIS HELPED

Answer:

117+x=180°(sum of straight line)

Step-by-step explanation:

x=180-117

x=63

The percentage of the original area of wetlands currently left in the United States is approximately 50%. So, the correct

option is 50% (option 3).

Percentages are a way of expressing a proportion or a fraction as a part of 100. It is denoted by the symbol "%".

According to the United States Environmental Protection Agency (EPA), it is estimated that about 50% of the original

wetlands in the contiguous United States have been lost since the 1600s due to human activities such as agriculture,

development, and urbanization. Therefore, the correct answer to the question is 50%.

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The percentage of the original area of wetlands currently left in the United States is approximately 50%.

Wetlands are regions of land where the soil is continually or intermittently soaked with water. Wetlands have a particular hydrology, soil, and vegetation mix that results in specialised ecosystems that offer a variety of ecological functions.

There are many different types of habitats where wetlands can be found, such as coastal locations, interior regions, and high-altitude mountain regions. They come in a variety of shapes, such as marshes, swamps, bogs, fens, and estuaries, and can be freshwater, brackish, or saline.

Wetlands are significant for several reasons. For species, such as migrating birds, amphibians, and fish, they offer crucial habitats. They also aid in removing contaminants from water, lessen the effects of flooding, and give people access to recreational activities. Wetlands are crucial for carbon sequestration as well.
Based on the information provided, the question is asking for the approximate percentage of the original area of wetlands currently left in the United States. The answer is approximately 50%.

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When a client who plays tennis is experiencing elbow discomfort and receives a diagnosis of tendinitis, epicondylitis, or tennis elbow, they may exhibit specific symptoms and signs associated with these conditions.

Tendinitis, also known as inflammation of the tendon, is a common diagnosis for tennis players. Symptoms may include pain and tenderness in the outer or inner side of the elbow joint, swelling, and limited range of motion. The pain is typically worsened during activities that involve gripping or twisting motions, such as gripping a tennis racket.

Epicondylitis, specifically lateral epicondylitis or tennis elbow, is characterized by pain and inflammation in the tendons that connect the forearm muscles to the outer side of the elbow. Symptoms typically include pain and tenderness on the outer side of the elbow, weak grip strength, and pain with wrist extension or lifting objects.

Common signs observed in these conditions may include localized swelling, redness, and warmth around the affected area. The client may also experience discomfort during specific movements, such as gripping objects or performing repetitive wrist and forearm motions.

It's important to note that a proper assessment and diagnosis should be made by a healthcare professional to accurately determine the client's condition and develop an appropriate treatment plan.  

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Answer: f = 12.5

Step-by-step explanation:

\(f = \frac{25}{2} \\decimal form = 12.5\\ mixed fraction form 12 \frac{1}{2}\)

Unfortunately there isn't enough information.

Check out the diagram below. We have segment BC equal to 120 meters long. Points B, C, D and E are all on the edge of the same circle. According to the inscribed angle theorem, angles BDC and BEC are congruent. This shows that the surveyor could be at points D or E, or the surveyor could be anywhere on the circle. There are infinitely many locations for the surveyor to be at, which leads to infinitely many possible widths of this canal.

The angle ∠AGB and ∠EGD are equal angles / opposite angles / vertical angles.

Given,

∠AGB and ∠EGD

We need to find what types of angles are ∠AGB and ∠EGD.

Vertical angles are angles that are opposite of each other when two lines cross.

Vertical angles are always equal.

We have,

∠AGB and ∠EGD are vertical angles

∠AGB = 30 = ∠EGD

∠CGD and ∠AGF are vertical angles.

∠CGD = 50 = ∠AGF

∠BGC and ∠FGE are vertical angles.

∠BGC = ∠FGE = 2x

We know that,

A straight angle is 180.

∠FGC =180

∠FGC = ∠AGF + ∠AGB + ∠BGC

180 = 50 + 30 + ∠BGC

180 - 50 - 30 = ∠BGC

180 - 80 = ∠BGC

∠BGC = 100

∠FGE = 100

We also see that,

∠FGC = ∠FGE + ∠EGD + ∠CGD

180 =  100 + ∠EGD + 50

180 - 150 = ∠EGD

∠EGD = 30

We see that,

∠EGD = 30°

∠AGB = 30°

Thus, the angle ∠AGB and ∠EGD are equal angles / opposite angles / vertical angles.

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The probability that the number will be more than 7 or odd is 7/10.

The number more than 7 or odd is 1, 3, 5, 7, 8, 9, 10

So probability of 7 number is,

P(A) = number of favorable outcomes of an event /  total number of events occurring in a sample

P(A) = 7/10

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is. Probability can range from 0 to 1, with 0 denoting an impossibility and 1 denoting a certainty. For pupils in Class 10, probability is a crucial subject because it teaches all the fundamental ideas of the subject. One is the probability of every event in a sample space.

The total values provided in a datasheet must be added, and the sum must be divided by the total number of values in order to determine the mean. When all of the values are organized in ascending order, the Median is the median value of the given data. While the number in the list that is repeated a maximum of times is the mode.

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The degree of freedom for the distribution in this test of homogeneity is 7.

For the degrees of freedom for the test of homogeneity for a contingency table, we use the formula:

df = (number of rows - 1) × (number of columns - 1)

In this case, the contingency table has 2 categories in the row variable and 8 categories in the column variable. Therefore, the number of rows is 2, and the number of columns is 8.

Substituting these values into the formula, we get

df = (2 - 1) × (8 - 1)

df = 1 × 7

df = 7

Therefore, the degree of freedom for the distribution in this test of homogeneity is 7.

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Step-by-step explanation:

Let No. Of Student tickets sold be X and No. Of general tickets sold be Y respectively.

Total tickets sold :

(a) X + Y = 92

Total earnings from tickets sale:

(b) 5X + 8Y = 610

Solving equations (a) and (b), we get :

X = 42 tickets

Y = 50 tickets

the probability mass generating function of X + Y is 5 + 2e^t + e^(2t).

31. The probability mass generating function (PMGF) of X + Y is given by:

M(t) = E[e^(t(X+Y))] = E[e^(tX) * e^(tY)]

Since X and Y are independent, their PMGFs can be multiplied:

M(t) = E[e^(tX)] * E[e^(tY)]

Given that X and Y have discrete uniform distributions with possible equally-likely values 0, 1, and 2, their PMGFs can be calculated as:

E[e^(tX)] = (1/3) * e^(t*0) + (1/3) * e^(t*1) + (1/3) * e^(t*2)

          = (1/3) + (1/3) * e^t + (1/3) * e^(2t)

E[e^(tY)] can be calculated in the same way, using the same formula.

Multiplying the two PMGFs together, we get:

M(t) = (1/3) + (1/3) * e^t + (1/3) * e^(2t) * (1/3) + (1/3) * e^t + (1/3) * e^(2t)

Simplifying the expression:

M(t) = 5 + 2e^t + e^(2t)

Therefore, the probability mass generating function of X + Y is 5 + 2e^t + e^(2t).

32. If X and Y are jointly distributed continuous random variables with joint density function f(x,y), and if X and Y are independent, then their joint density function can be expressed as the product of their marginal density functions:

f(x,y) = f_X(x) * f_Y(y)

However, in the given question, the joint density function f(x,y) is not provided. Without the joint density function or information about the marginal density functions, we cannot conclude that X and Y are independent.

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The total amount of money spent by Keesha to buy grapes and bananas is equal to $6.38.

Based on the value of the bills and coins which represent the cost of each item, we would determine the total amount of money spent by Keesha to buy grapes and bananas.

For the grapes, we have:

Cost of grapes = 5 + (1 × 0.25) + (2 × 0.1) + 0.05

Cost of grapes = 5 + 0.25 + 0.2 + 0.05

Cost of grapes = $5.5.

For the bananas, we have:

Cost of bananas = (3 × 0.25) + 0.1 + (3 × 0.01)

Cost of bananas = 0.75 + 0.1 + 0.03

Cost of bananas = $0.88.

Total cost = 5.5 + 0.88

Total cost = $6.38.

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Answer:

96

Step-by-step explanation:

L x W x H

8 x 4 x 3 = 96

The weekly pay of Howard as an assistant pharmacist in Rockville recruitment is $984.66

The payment for the recruitment agency job = $51,200

The agency fees = 40% of the first three week's pay

Howard's weekly salary can be found using the formula,

                W = A / N

where W is the weekly salary

           A is the annual salary

           N is the number of weeks

Let us substitute the known values in the above equation, we get

              W = 51,200 / 52 [ Total no. of weeks in one year will be 52 weeks]

                   = $984.66

Thus, his weekly pay for Howard as the recruitment agency job is $984.66

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The full question is

The Rockville Employment Agency just placed Howard Jacobson in a job as a junior pharmacist. The job pays $51.2k. The agency fee is equal to 40% of the first three weeks' pay. What is Howard's weekly salary to the nearest cent?

The probability that the player has all 8 of the number selected by the lottery commission is approximately 1.3 × 10^-9.

There are a total of 40 numbers that can be chosen for the lottery. Out of those 40 numbers, a player must select 8 numbers. The lottery commission will also randomly select 8 numbers from those 40. If a player has all 8 of the numbers selected by the lottery commission, then they will win. The number of ways to choose 8 correct numbers is simply 1, since there is only one set of 8 numbers that the player can choose that matches the 8 numbers selected by the lottery commission.

The number of ways to choose any 8 numbers from 40 is given by the combination formula:

P = (40! / (8! (40 - 8)!) = 769,046,685

Therefore, the probability that the player has all 8 numbers selected by the lottery commission is:

P(all 8 numbers are correct) = 1 / 769,046,685 = 1.3 × 10^-9 (approximately).

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Solve for the unit price of 11.5-ounce package.

Divide the cost by the number of ounce of the package.

$4.24 ÷ 11.5 oz = $0.3690 per ounce

Rounding off to the nearest cent → $0.37 per ounce.

Solve for the unit price of 27.8-ounce package

Do the same as above with its corresponding cost.

$9.98 ÷ 27.8 oz = 0.359 per ounce

Rounding off to the nearest cent → $0.36 per ounce.

Comparing the two, the 27.8-ounce package is much cheaper per ounce than with the 11.5-ounce package, thus the 27.8-ounce package is a better buy.

The statement that a yo-yo has an outer radius of 8cm and an inner radius of 2cm is true.

A yo-yo typically has a circular body with an outer radius and an inner radius where the string attaches. The inner radius is the distance from the center of the yo-yo to where the string is tied, while the outer radius is the distance from the center to the outer edge of the yo-yo. In the case of the yo-yo in question, the inner radius is given as 2cm and the outer radius is given as 8cm.

It is important to note that the difference between the outer and inner radii affects the way the yo-yo behaves during play. The larger the difference between the two radii, the more stable the yo-yo will be during tricks. Additionally, the thickness of the yo-yo body and the weight distribution also play a role in how the yo-yo performs. Overall, the geometry of the yo-yo is an important factor to consider when choosing and using a yo-yo for different types of tricks and styles of play.

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