To decide if his class would take a quiz today, Mr. Chiu will flip a coin three times. If all three results are heads or all three results are tails, he will give the quiz. Otherwise, his students will not be tested. What is the probability that his class will take the quiz?

a. 1/8.

b. 1/4.

​c. 1/2.

d. 1.

Part A: The respondents in the population are a voluntary response sample.

Part B: The responses may not reflect the opinions of the general population

The total number of internet users in those is 1072 people.

The percentage of the total number of people that chose to respond is 38%

We can note that this survey does not compel the population to respond to the survey. These responses are given by the voluntary respondents.

Another point is that a voluntary response sample is a sample that consists of participants who are interested to participate in a sample group voluntarily.

In this type of survey, the people who are supposed to decide to provide voluntary responses to the survey are called voluntary response samples.

The percentage of those that chose to respond to this survey which is 38% is less than half of the total population. This result shows that the responses may not reflect the opinions of the general population.

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understood one by one in order to understand.

my answer lies in paper

The intersection points of the two conics are therefore\((1 + √14, -1 + √14)\)and \((1 - √14, -1 - √14).\)Hence, the two conics intersect at two points.

The point or points of intersection and the number of places the following 2 conic intersect is to be determined. The system over the real numbers for \(x² + y² = 34 and 3x - 3y = 6\) is to be solved.

To determine how many points the following 2 conic intersect at, the two equations must be solved simultaneously. The points of intersection can then be determined by substituting the value of x or y into the other equation and solving for the remaining variable.The equation 3x - 3y = 6 is the equation of a straight line. Solving the equation for y, \(y = x - 2\).

So the line passes through the point (0, -2) and (2, 0) on the x-axis. Now, substitute the value of y into the equation x² + y² = 34 to get\(x² + (x - 2)² = 34\), expanding this gives 2x² - 4x - 26 = 0, which simplifies to x² - 2x - 13 = 0.The solution to the quadratic equation \(x² - 2x - 13 = 0\) is given as\(x = 1 + √14, 1 - √14\). The corresponding value of y for each x can be calculated by substituting the value of x into the equation y = x - 2.

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The height of a randomly selected giraffe, the number of points scored during a basketball game, the gender of college students, the amount of rain in City Upper B during April, and the number of fish caught during a fishing tournament are all examples of discrete or continuous random variables, while the number of bald eagles in a country is not a random variable.

a. Continuous random variable

b. Discrete random variable

c. Discrete random variable

d. Continuous random variable

e. Discrete random variable

f. Not a random variable

a. The height of a randomly selected giraffe is a continuous random variable because it can take on any value within a certain range.

b. The number of points scored during a basketball game is a discrete random variable because it is a countable number.

c. The gender of college students is a discrete random variable because it is a categorical variable with two possible values.

d. The amount of rain in City Upper B during April is a continuous random variable because it can take on any value within a certain range.

e. The number of amount fish caught during a fishing tournament is a discrete random variable because it is a countable number.

f. The number of bald eagles in a country is not a random variable because it is a fixed number and not a random sample.

The height of a randomly selected giraffe, the number of points scored during a basketball game, the gender of college students, the amount of rain in City Upper B during April, and the number of fish caught during a fishing tournament are all examples of discrete or continuous random variables, while the number of bald eagles in a country is not a random variable.

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Answer:

it's A on PLATO

Step-by-step explanation:

Answer:

AAAAAA

Step-by-step explanation:

Answer:

C) 352 cm^2

Step-by-step explanation:

\(We\ are\ given\ that\ ,\\Volume\ of\ the\ cylindrical\ vessel = 448\pi\ cm^3\\Height\ of\ the\ cylindrical\ vessel =7 cm\\\\We\ know\ that,\\Volume\ of\ a\ cylinder=\pi r^2h\\Hence,\\\pi r^2h=448\pi \\Substituting\ 7\ instead\ of\ h,\ we\ get,\\\pi r^2*7=448\pi \\Canceling\ \pi \ on\ both\ the\ sides\ we\ have,\\r^2*7=448\\r^2=448/7\\r^2=64\\r=8\)

\(We\ now\ know\ that\ ,\\Radius\ of\ cylindrical\ vessel\ = 8\\Height\ of\ the\ cylindrical\ vessel\ =7\\\\Hence,\\CSA\ of\ a\ cylinder\ = 2\pi rh\\CSA\ of\ the\ cylindrical\ vessel = 2*\pi *7*8\\Approxiamating\ the\ value\ of\ \pi\ as\ \frac{22}{7} ,\\CSA\ of\ the\ cylindrical\ vessel = 2*\ \frac{22}{7} *7*8\\=2*22*8\\=352\ cm^2\)

Answer:

I think the answer us C.

Step-by-step explanation:

70-7=63. 9×7=63 so we now know the two values. if the outcome is a positive number then both answers must be negative (negative times negative=positive).

Answer:

-7

Step-by-step explanation:

70=bx+7

70=b(-9)+7

70=-9b+7

-7. -7

63=-9b

÷-9 ÷-9

-7=b

(d) The value of c needs to be approximately $2,641 to the nearest dollar in order to have $15,000 in the savings account at the end of five years.

To find the required value of c, we can use the formula for the future value of a continuous compound interest account:

\(\[FV = P \cdot e^{r \cdot t}\]\)

where FV is the desired future value, P is the initial deposit (which is zero in this case since the account is initially empty), e is Euler's number approximately equal to 2.71828, r is the interest rate per year, and t is the number of years.

Plugging in the given values, we have:

15,000 = \(\[c \cdot e^{0.05 \cdot 5}\]\).

To solve for c, we divide both sides by \(e^{0.05 \cdot 5}\)  :

15,000 / \(e^{0.05 \cdot 5}\) = c.

Evaluating the left side, we find approximately 2,641.

Therefore, c needs to be approximately $2,641 to the nearest dollar. Thus, the correct answer is (d) $2,641.

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Answer:

The yellow one

Step-by-step explanation:

Answer:

the yellow one

is the answer

Answer:

$293.28

Step-by-step explanation:

282 increase 4% =

282 × (1 + 4%) = 282 × (1 + 0.04) = 293.28

The number of gallons of water in the tank is mathematically given  as

x=4500gallons

This is further explained below.

a British measure of capacity for both liquid and dry goods that is equivalent to four quarts, 277.42 cubic inches, or 4.544 liters, and is sometimes referred to as an imperial gallon.

Since 150 gallons per minute. and  30 minutes

Generally, the equation for the number of gallons is  mathematically given as

x=150*30

x=4500

In conclusion,

x=4500gallons

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Answer:

What was going on in Britain during the time just before Shakespeare lived?

Elizabeth had settled the religious question by establishing the Church of England as the official religion of the country, insisting on church services in English, the English Bible and prayer book in churches etc, but not going as far in extreme Protestantism as, for instance, the Puritans would have liked her to do.

Step-by-step explanation:

please mark me brainliest!!

The period from 1550-1650 in British history was a time of significant political, social, and cultural change.

England, which had absorbed Wales under Henry VIII in the 16th century, merged with Scotland in 1707 to form a new sovereign state known as Great Britain.

Here are some key events and factors that were happening during the time just before, during, and just after Shakespeare lived:

Thus, the period from 1550-1650 was a time of significant change and upheaval in England, with political, religious, and economic developments shaping the lives of its people.

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The minimum wage set by the government at $7.50 per hour does not result in a pay cut for unskilled workers, as it is below the equilibrium wage of $8.00 per hour.

The wage rate remains unchanged, and the labor market remains in balance.

The statement is false.

False.

The equilibrium wage in the market for unskilled labor is $8.00 per hour, which means that the market naturally sets the wage rate at this level, based on the forces of supply and demand.

The government then sets a minimum wage at $7.50 per hour.

Since the minimum wage is below the equilibrium wage, it does not directly impact the wage rate for unskilled workers.
The equilibrium wage represents the point at which the supply of labor (the number of workers willing to work at a given wage) equals the demand for labor (the number of workers that employers are willing to hire at a given wage).

In this case, both workers and employers are satisfied with the $8.00 per hour wage, and the labor market is balanced.
The government sets a minimum wage below the equilibrium wage, it essentially sets a wage floor that is not binding. Employers are still willing to pay the equilibrium wage of $8.00 per hour, and workers are still willing to accept this wage.

The wage for unskilled workers remains at $8.00 per hour, and there is no pay cut of 50 cents per hour.

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The total length of the hose, in yards, is 12 11/12 yards.

To find the total length of the hose, we need to add the lengths of the two hoses. The first hose is 5 5/6 yards long, and the second hose is 6 3/4 yards long.

To add these two lengths, we need to find a common denominator for the fractions. The common denominator for 6 and 4 is 12. So, we convert the mixed numbers to improper fractions:

5 5/6 = (6 * 5 + 5) / 6 = 35/6

6 3/4 = (4 * 6 + 3) / 4 = 27/4

Now, we can add the two fractions: 35/6 + 27/4

To add these fractions, we need a common denominator, which is 12. We convert both fractions to have a denominator of 12:

35/6 = (35/6) * (2/2) = 70/12

27/4 = (27/4) * (3/3) = 81/12

Now, we can add the fractions: 70/12 + 81/12 = 151/12

The resulting fraction, 151/12, can be simpified to a mixed number: 151/12 = 12 11/12

Therefore, the total length of the hose, in yards, is 12 11/12 yards.

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Answer:

Step-by-step explanation:

mmm it blury i can't see it

The check for independence in a one- sample is

The population size is further than 10 times the sample size.

The Correct option is D.

What is Z- test?

A Z- test is a statistical thesis test used to determine whether a sample mean significantly differs from a given population mean when the population standard divagation is known.

For a one- sample z- test for a population proportion, the sample is named without relief from a finite population.

In order for the test to be valid, it's necessary to insure that the sample is small relative to the population size.

still, it can be considered large enough to satisfy the independence supposition, If the population size is further than 10 times the sample size. This supposition is necessary for the validity of statistical conclusion in this environment.

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Answer:

5x+6+48+81=180°

5x+135=180

5x=45

x=9

Step-by-step explanation:

I HOPE it will help you

Answer:

answer is 9

Step-by-step explanation:

48+81=129

180-129=51

51-6=45

45/5=9

The covariance between the number of coins and the value of the coins is 240.

The covariance between the number of coins (N) and the value of the coins (V) can be calculated as

Cov(N, V) = Cov(n nickels + n dimes, 5n nickels + 10n dimes)

= 5 Cov(n nickels, n nickels) + 10 Cov(n nickels, n dimes) + 5 Cov(n dimes, n nickels) + 10 Cov(n dimes, n dimes)

= 5 * Var(n nickels) + 10 * Cov(n nickels, n dimes) + 5 * Cov(n dimes, n nickels) + 10 * Var(n dimes)

= 5 * 8 + 10 * 5 + 5 * 5 + 10 * 10

= 40 + 50 + 50 + 100

= 240

So the covariance between the number of coins and the value of the coins is 240.

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If Tammy wants to run 1/4 of the total race then , he should run 3.75 miles.

If Tammy wants to run about 1/4th of length of the race for the first few days of her training,

We can estimate her running distance by finding 1/4 of the total length of the race.

The total length of the race is given to be = 15 miles ,

So , 1/4 of 15 miles is calculated as :

⇒ (1/4) × 15 miles = 3.75 miles ,

Therefore, Tammy should run approximately 3.75 miles for the first few days of her training .

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The given question is incomplete , the complete question is

For the first few days of her training, Tammy wants to run about 1/4 the length of the race. Estimate how far she should run if the total length of the race is 15 miles , Explain .

A study that uses both manipulated and measured variables in a factorial design is called a(n)  option b. IV X PV design.

In this design, there are two or more independent variables (IVs) that are manipulated by the researcher.

And one or more measured variables, also known as participant variables (PVs), that are measured but not manipulated.

Factorial designs are used to investigate the effects of multiple independent variables on a dependent variable.

As well as the interactions between the independent variables.

The IV X PV design is a specific type of factorial design.

That includes at least one measured variable in addition to the manipulated independent variables.

Option A is incorrect because mixed repeated measures and independent groups are types of designs .

That describe how participants are assigned to different groups in a study, whereas the IV X PV design describes the types of variables that are used in a study.

Option C describes a specific type of 2x2 factorial design, which includes two independent variables, each with two levels.

Option D describes a design that is used to investigate the relationship between multiple measured variables and a single dependent variable.

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The largest value that f(4) can possibly be is 29.

The mean value theorem states that for a function f(x) that is continuous on the closed interval [a, b] and differentiable on the open interval (a, b), there exists a number c in the open interval (a, b) such that:

f(b) - f(a) = f'(c)(b - a)

In this case, we are given that f(0) = -3 and that f'(x) ≤ 8 for all values of x. To determine how large f(4) can possibly be, we can use the mean value theorem with a = 0 and b = 4:

f(4) - f(0) = f'(c)(4 - 0)

Substituting the given values:

f(4) - (-3) = f'(c)(4)

f(4) + 3 = 4f'(c)

Since f'(x) ≤ 8 for all values of x, we can say that f'(c) ≤ 8. Therefore:

f(4) + 3 ≤ 4f'(c) ≤ 4(8) = 32

Therefore, we have:

f(4) ≤ 32 - 3 = 29

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Lisa initially had 37 gift boxes as per the provided information and concept of the equation.

Let's denote the initial number of gift boxes Lisa had as 'x'. According to the given information, half of her boxes were destroyed in the fire, which means she lost (1/2)x boxes. After the fire, Lisa is left with 22 boxes.

We can set up the equation:

x - (1/2)x = 22

Simplifying the equation, we have:

(1/2)x = 22

To isolate 'x', we multiply both sides of the equation by 2:

2(1/2)x = 2 × 22

This gives us:

x = 44

Therefore, Lisa initially had 44 - 7 = 37 gift boxes.

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An unreliable study can occur if the test administration is inconsistent

Consistency is the key to success in anything and it implies to the studies and surveys as well. If you want the results of the study to be reliable, then you must be consistent in test administration.

Inconsistency can lead to various issues like improper representation of the feedback which may alter the results. This can lead to various problems.

For example, test performed at certain time may have a different set of people and absence of periodic tests can accommodate feedback from irrelevant people.

Therefore, a proper set schedule must be followed for the tests with consistency.

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Answer:

The height of the building is approximately;

B. 154 ft

Step-by-step explanation:

From the given drawing of the right triangle formed by the measure of the angle to the top of the building, 64°, the height of the building, 'h', and their distance from the bottom of the building, 75 ft., we have;

The reference angle of the right triangle = The given 64° angle

The adjacent leg length to the reference angle = 75 ft.

The opposite leg length to the reference angle  The height of the building

From the given information, the trigonometric ratio we can use to find the height is the tangent of the reference angle, given as follows;

\(tan (Reference \, angle) = \dfrac{Opposite \ leg \ length}{Adjacent \ leg\ length}\)

Therefore, we have;

\(tan (64^{\circ}) = \dfrac{The \ height \ of \ the \ building, h}{75 \, ft.}\)

The height of the building, h = 75 ft. × tan(64°) = 153 feet \(9\dfrac{9}{32}\) inches

Therefore, the height of the building ≈ 154 feet.

Answer:

154 ft

Step-by-step explanation:

tan64° = \(\frac{h}{75ft}\)

h = tan64° * (75ft)

h = 2.0503038416 * 75

h = 153.77278812 ft or 154 ft rounded to the nearest foot

Answer:

Hey there!

We can let x be that number.

2x+9=31

2x=22

x=11

The number is 11.

Let me know if this helps :)

Answer:

The whole number is 11.

Step-by-step explanation:

Let's call the whole number x. We can write the following equation:

2x + 9 = 31

Subtracting 9 from both sides of the equation gives us:

2x + 9 - 9 = 31 - 9

2x = 22

Dividing both sides of the equation by 2 gives us:

2x / 2 = 22 / 2

x = 11

The length and width for a maximum area is 10 popsicle by 10 popsicle.

An equation is an expression that shows the relationship between two or more numbers and variables. An independent variable is a variable that does not depend on other variables while a dependent variable is a variable that depends on other variables.

Let x represent the length to Craig's house and y represent the width. Hence:

2(x + y) = 40

x + y = 20

y = 20 - x      (1)

Area (A) = xy = x(20 - x)

A = 20x - x²

The maximum area is at A' = 0, hence:

A' = 20 - 2x

20 - 2x = 0

x = 10

y = 20 - (10) = 10

The length and width for a maximum area is 10 popsicle by 10 popsicle.

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Answer: y=3/2x+3

Step-by-step explanation: