John is starting a roofing business. He will need to buy a truck and some supplies to get his business going. The truck costs $13000 used. He gets three jobs right away. And hires 2 workers to help him. The materials for all three jobs cost $3000 total. The jobs will each take a week not including Saturday and Sunday and he pays his workers $125 per day per worker. How much will he have to charge for each job in order to break even at the end of the third job?

Exercise can be beneficial for academic performance in a variety of ways.

Improved cardiovascular health, for example, can lead to improved blood flow to the brain, providing a better environment for learning and memory formation. Exercise can also improve mental health, reduce stress, and increase energy levels, helping to better prepare for tests and exams. Finally, exercise can help to improve concentration, focus, and overall cognitive function.

The formula for calculating the potential benefits of exercise on academic performance is:

Academic Performance = Exercise + Improved Cardiovascular Health + Mental Health + Stress Reduction + Energy + Concentration + Focus + Cognitive Function

By increasing the amount of exercise, the individual can increase their academic performance. This is done by improving cardiovascular health, mental health, stress levels, energy, concentration, focus, and cognitive function. All of these factors play a role in academic performance, and increasing any one of them can lead to an overall improvement in academic performance.

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The percentage change is by 30% and it indicates percentage increase due to increase in new quantity.

The percent change will be calculated using the formula -

Percentage change = difference in quantity ÷ original quantity × 100

Difference in quantity will further be expressed by the formula -

Difference in quantity = New quantity - original quantity

Keep the values in formula for calculation. Firstly finding the difference in quantity.

Difference in quantity = 39 - 30

Performing subtraction

Difference in quantity = $9

Percentage change = 9/30×100

Performing division and cancelling zero

Percentage change = 30%

The mentioned scenario represents percentage increase.

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The required solution of the given quadratic equation are 2 or -2.

A quadratic equation is a second-order polynomial equation in a single variable x ax² +bx+c=0. with a ≠ 0 . Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution.

We have,

b² -4=0

Here we will use identity a² - b² = (a+b)(a-b)

Then,

b² -4=0

b² - (2)² = 0

(b + 2)(b - 2) = 0

b + 2 = 0

b = -2

Or b - 2 = 0

b = 2

Thus,required solution of the quadratic function are 2 or -2.

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All of the statements that are true include the following:

II. The hypothesis was supported with the results of the experiment.

III. It can be concluded that every time 8 wraps are added to the nail, the total number of paper clips lifted doubles.

Therefore, the correct answer option is: A. II and III only.

In Science, a hypothesis is primarily considered to be a tentative or an educated guess and it can be defined as a testable explanation for an observation, result, or a specific experimentation (scientific) problem, especially through the use of the "if . . . then . . . because" format.

Based on the information provided about this experiment, we can reasonably infer and logically deduce that the hypothesis developed about the steel nail is true because when eight (8) wraps of an insulated copper wire are added to the steel nail, the total number of paper clips that would be lifted is twice as many paper clips.

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According to the given information in the question rounded to the nearest hundredth, the probability is 0.14.

Probability is a measure of how likely something is to occur. The probability is computed by dividing the total possible outcomes by the number of possible ways the event could occur.

Adding the probabilities together will yield the chance of a simple event occurring. Your total chances of acquiring something are 10% + 25% = 35%, for instance, if you have an 10% opportunity to win $10 and a 25 percentage chance of getting $20.

The probability of a student studied for exactly 5 hours can be calculated using the formula for probability of a discrete event:

P(X = 5) = (number of ways to get a 5) / (total number of outcomes)

From the data provided, we know that 5 students studied for 5 hours. And there were a total of 35 students surveyed. So the probability is:

P(X = 5) = 5/35 = 0.14

Rounded to the nearest hundredth, the probability is 0.14.

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The runner's average speed in kilometers per hour is 24.257 km.

The total distance covered by the runner is 1 mile. The relation between kilometers and miles is given as 1 km = 0.62 mi. Converting 1 mile to km by using the given relation, we get-

Distance = 1 mile

 = 1 mile × [1 km/0.62 mile]

= 1.6129 km

The time taken to complete a 1-mile run is 3 minutes and 59.37 seconds. The relation between hours and minutes is given below.

1 hour = 60 minutes ……(1)

Converting 3 minutes to hours using equation (1), we get-

3 minutes = 3 minutes × [1 hour/60 minutes]

= 0.05 hours

The relation between hours and seconds is given below.

1 hour = 3600 second …….(2)

Converting 59.37 seconds to hours using equation (2), we get-

59.37 seconds = 59.37 seconds × [1 hour/3600 seconds]

= 0.016492 hours

Total time to cover 1 mile = (0.05 + 0.016491) hours = 0.066492 hours

The average speed of the runner is calculated by the following relation-

Average Speed = Distance (km)/time (hours)

= 1.6129 km/0.066492 hours

= 24.257 km/hour

Therefore, the average speed in kilometers per hour is 24.257km.

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Answer:

only one triangle can be formed ...

If x = 4, y = 5, z = 1/2 , then

(a) It will take 3 minutes  to secure door ,

(b) It will take 56 minutes to complete system check ,

(c) It will take 44 minutes to fill pantry with astronaut food .

The values of x , y and z are x = 4, y = 5, z = 1/2 ;  

Part(a) ;

The Number of minutes to secure door is calculated the by expression

⇒ 7x - 5y .

Substituting values as x = 4 and y = 5 ,

we get ;

⇒ 7(4) - 5(5) = 28 - 25 = 3 minutes .

Part(b) ;

The Number of minutes to fill pantry with astronaut food is calculated the by expression :

⇒ 12z + 2y² ,

Substituting values as z = 1/2 and y = 5 ,

we get ;

⇒ 12z + 2y² = 12(1/2) + 2(5)² = 6 + 2×25 = 6 + 50 = 56 minutes .

Part(c) ;

The Number of minutes to complete system check is calculated the by expression

⇒ 2xy + 8z ,

Substituting values as x = 4 , z = 1/2 and y = 5 ,

we get ;

⇒ 2xy + 8z = 2(4)(5) + 8(1/2) = 40 + 4 = 44 minutes .

The given question is incomplete , the complete question is

Evaluate the following expressions to help the astronauts prepare for take off. These numbers will help calculate the amount of time it will take to prepare for take off.

In this case x = 4, y = 5, z = 1/2 ;  

(a) Number of minutes to secure door is found by expression ⇒ 7x - 5y .

(b) Number of minutes to complete system check is found by expression ⇒ 12z + 2y² ,

(c) Number of minutes to fill pantry with astronaut food is found by expression ⇒ 2xy + 8z .

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Answer: I don't know

Step-by-step explanation: good luck

Answer:

A. 3/4

Step-by-step explanation:

[tex]\frac{8}{1}[/tex] x [tex]\frac{3}{4}[/tex] = [tex]\frac{24}{4}[/tex] = 6

6 is less than 8

The comparable word in Bryan's pattern is 28 whereas the number in Liam's pattern is 49.

The difference between every two successive terms in an arithmetic series is always the same. The number "a" is the first term, and "d" is the common difference between the. sequence. The nth term of an arithmetic sequence is given by. aₙ = a + (n – 1)d

Given this, we must first determine what is the position of 49 in Liam's pattern. Since Liam's pattern starts at 7 and increases by 7 each time, we can say that

d = 7

a₁ = 7

Substituting these values, we will get

49 = 7 + (n - 1) * 7

49 = 7 + 7n - 7

49 = 7n

n = 7

we are asked what is the corresponding term in Bryan's pattern when the number in Liam's pattern is 49. Since 49 is the 7th term in Liam's pattern, we need to find the 7th term in Bryan's pattern. As stated in the problem, Bryan's pattern starts at 4 and increases by 4 each time. This means that

d = 4

a₁ = 4 n = 7

Substituting these values, we will get

a₇= 4 + (7 - 1) * 4

a₇ = 4 + (6) * 4

a₇ = 4 + 24

a₇ = 28

Therefore, when the number in Liam's pattern is 49, the corresponding term in Bryan's pattern is 28.

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Check the picture below.

There are several different sampling methods that could be employed for this study, including:

Simple random sampling: This method involves randomly selecting a certain number of students from each campus and measuring the distance between their hometowns and their campuses.

Stratified random sampling: This method involves dividing the student population at each campus into different strata (e.g. by major or year in school) and then randomly selecting a certain number of students from each stratum.

Cluster sampling: This method involves randomly selecting a certain number of campuses and then measuring the distance between the hometowns of all students at those campuses and their respective campuses.

Multi-stage sampling: This method involves using a combination of the above methods, such as first using cluster sampling to select a certain number of campuses and then using stratified random sampling to select a certain number of students from each campus.

This study would be an enumerative study because it seeks to measure the characteristics of a population, in this case, the average distance between the hometowns of students and their campuses, by counting and measuring them.

It is not an analytic study because it doesn't involve testing a hypothesis or making causal inferences.

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Answer:

x = +4 , -4

Step-by-step explanation:

    x² - 16 = 0

           x² = 16

           [tex]\sf x = \sqrt{16}\\\\x = \sqrt{4*4}\\\\[/tex]

          x = ±4

The number of years until the town will have 100 students is given as follows:

22.68 years.

A decaying exponential function is modeled as follows:

y = a(1 - r)^x.

In which:

The parameter values for this problem are given as follows:

a = 320, r = 0.05.

Hence the function is given as follows:

y = 320(0.95)^x.

The time it will take for the population to have 100 students is x when y = 100, hence:

100 = 320(0.95)^x

(0.95)^x = 100/320

(0.95)^x = 0.3125

x log(0.95) = log(0.3125)

x = log(0.3125)/log(0.95)

x = 22.68 years.

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Answer:

#1 is 2.56

#2 is 2374.32

#3 is 19

#4 is 2,007.62

Step-by-step explanation:

3.2 x 0.8 = 2.56

Solve 22.83 x 104 =2374.32

The aquarium in Key West has a display of 486 fish. How many fish would be in 25 displays=12150

542.6 x 3.7 =2007.62

6,325 x 48 =303600

Answer:  D. percentages only for each line item.

Horizontal analysis, also known as trend analysis, is a method of financial statement analysis that compares line items over time by expressing them as a percentage of a base year. The base year is typically the most recent year, and the comparison is typically made to the prior year. In horizontal analysis, the increases and decreases are shown as percentages for each line item, so that the changes in the line items can be easily compared and analyzed. This is different from vertical analysis, which shows the line items as a percentage of a total, such as total assets or total revenue.

Step-by-step explanation:

Answer: 2.4 x 10^-2

Step-by-step explanation:

6 x 4 = 24 (you can do this because powers are the same)
24 x 10^-3
2.4 x 10^-2

Answer:

B. [tex]\frac{1}{6}[/tex]

Step-by-step explanation:

imma human calculator and no one can stop me

The probability of spinning an odd number first then spinning an even number is 3/8 x 4/8 = 12/64.

This can be expressed as a fraction, decimal, or percentage. As a fraction, this probability is 12/64. As a decimal, this probability is 0.1875. As a percentage, this probability is 18.75%.

To calculate this probability, we first need to calculate the probability of spinning an odd number first. Since there are eight sections and four of them are odd numbers (1, 3, 5, 7), the probability of spinning an odd number is 4/8. We then need to calculate the probability of spinning an even number. Since there are four even numbers (2, 4, 6, 8), the probability of spinning an even number is 4/8. Finally, we multiply these two probabilities together to get the probability of spinning an odd number first then spinning an even number, which is 3/8 x 4/8 = 12/64.

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Answer:

1/12

Step-by-step explanation:

An hour consists of 60 minutes and 5 minutes would be 1/12 of an hour.

5 minutes / 60 minutes

divide both sides by 5

1/12 of an hour

X intercept is none , y intercept is (0,1)

The x-intercept is the point where a line crosses the x-axis, and the y-intercept is the point where a line crosses the y-axis.

the distance from the origin to a point where a graph crosses a coordinate axis. : interception.

The x- and y-intercepts of a line, or linear equation intercepts, are often used in problems involving lines and their graphs. Linear equation intercepts are important points to be able to understand and decipher in applications of linear equations problems and can also be used when graphing lines.

f(x)=x^2+1=0

so the x intercept is none and y intercept is (0,1)

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The inverse function takes the output of the original function and gives the input that would produce that output.

In mathematics, the inverse function (f^-1) of a function f(x) is a function that "undoes" the action of the original function. The relationship between a function f(x) and its inverse function f^-1(y) is such that if f(x) = y, then f^-1(y) = x. In other words, the inverse function takes the output of the original function and gives the input that would produce that output.

It's important to note that not all functions have inverse functions, a function may not have an inverse if it's not one-to-one function, that is, if it's output has more than one input that produces it.

Correct Question :

How does each inverse function  f^(-1)y  relate to its original function? Describe the relationship in terms of the context for each situation.

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Answer:3

Step-by-step explanation:

Answer: Jimmy has 3 apples left.

Step-by-step explanation: 5-2=3

-1 = 4

-2 = 3

No, that i not a ucce, the electric bill need to be  amount $1530 or le to be conidered a ucce.

To calculate the electric bill after the 11% decrease, simply multiply the current electric bill by 0.89, which is 1-11%. This will give you the new electric bill.

$1700 x 0.89 = $1530

Therefore, if the company's electric bill for next month is amount $1530 or less, then that would be considered a success.

The company must reduce their electric bill to $1530 or less in order to be considered successful in decreasing their energy usage by 11%.

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Answer: This is a geometric sequence, because each term is obtained by multiplying the previous term by a constant ratio. In this case, the ratio is -2.

To find the 9th term, we can use the formula for the nth term of a geometric sequence:

a_n = a_1 * r^(n-1)

where:

a_n is the nth term of the sequence

a_1 is the first term of the sequence (9)

r is the common ratio (-2)

n is the term number (9)

Plugging in the values:

a_9 = 9 * (-2)^(9-1) = 9 * (-2)^8 = 9 * -256 = -2304

So the 9th term of the sequence is -2304

Answer:

the answer is

c = 4

and h = √2/10

The answer is [tex]\frac{55}{96}[/tex] .

If A, B, and C  are three dependent events,

P(A∩ B∩C) =P(A). P(A|B) .P(C|A∩B)

Let us use your birthday as a starting point.

Let A be the first friend who has a different birth month than you. Let B be the second friend who has a different birth month than friend 1  and you

Let C be the third friend who has a different birth month than friend 1, friend 2, and you

there are 12 months in a year

P(A∩ B∩C) =P(A). P(A|B) .P(C|A∩B)

P(A∩ B∩C)  [tex]= \frac{11}{12} .\frac{10}{12} .\frac{9}{12}[/tex]

P(A∩ B∩C) [tex]= \frac{990}{1728} =\frac{55}{96}[/tex]

So, the result is [tex]\frac{55}{96}[/tex] .

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