what is the total of these numbers 1.5 1.0 1.0 4.0 6.0 1.0 .50 6.5 2.25 3.5 4.0 2.0 .25 .25 .25 5.5 3.5 .25 6.0 2.0 3.0 2.5 .25 1.5 2.0 4.0 4.0 3.5 4.5 2.5 3.0 2.5 2.0 2.5 .25 3.5 .5 .5 .25 .25 .5 3.0 .25 2.0 .5 1.5 2.0 .25 .5 3.0 1.5 1.0

Answer:

- 18369919

Step-by-step explanation:

Hope that helps!

Researchers use the visual cliff experiment to determine whether depth perception is innate or learned in infants

The visual cliff experiment is used to test depth perception in babies, by

using an apparent cliff.

The experiment can be used to verify if the perception of depth is an

innate capability or a learned response.

The completed statement is therefore;

Researchers use the visual cliff experiment to determine whether depth perception is innate or learned in infants.

The phrase that completes the statement is depth perception

Learn more about experiments here:

https://brainly.com/question/16722046

Answer:

They present meaningful piano music instead of individual tones or phrases, and the results are combined into a single score representing general musical ability or “musical intelligence.”Seven subtests are administered, each representing a musical dimension emphasized by music teachers and examiners: rhythmic accent,

Observations can you make from a comparison of the number of water supply stoppages reported by owner-occupied units versus renter-occupied units 1.

Total no. of times owner-occupied units had a water supply stoppage lasting 6 or more hours

547000 + 5012000 + 6110000 + 2544000 + 557000 = 14770000

x = no. of times owner-occupied units had a water supply stoppage.

P(x=0) = 547000/14770000

P(x=0) = 0.0370

Similarly, we have at x=1

P(x=1) = 5012000/14770000

P(x=1) = 0.3393

P(x=2) = 6110000/14770000

P(x=2) = 0.4137

P(x=3) = 2544000/14770000

P(x=3) = 0.1722

P(x=4) = 557000/14770000

P(x=4) = 0.0378

x           f(x)

0             0.0370

1              0.3393

2         0.4137

3              0.1722

4         0.0378

Total     1

Observations can you make from a comparison of the number of water supply stoppages reported by owner-occupied units versus renter-occupied units 1.

To learn more about the probability distribution visit:

https://brainly.com/question/24756209

#SPJ1

Answer:

es 357 ya que primero mutiplicas sumas restas y multiplicas

Step-by-step explanation:

pir esi se ilibi topi rrospe

a) To obtain the potential pressure drop in the wellbore, we can use the hydrostatic pressure equation.

The potential pressure drop is equal to the pressure gradient multiplied by the length of the wellbore. The pressure gradient can be calculated using the equation: Pressure gradient = (density of oil × acceleration due to gravity) × sin(θ), where θ is the deviation angle of the wellbore from horizontal flow. In this case, the pressure gradient would be (48 lbm/ft^3 × 32.2 ft/s^2) × sin(15°). Multiplying the pressure gradient by the wellbore length of 6,000 ft gives the potential pressure drop.

b) To determine the frictional pressure drop in the wellbore, we can use the Darcy-Weisbach equation. The Darcy-Weisbach equation states that the pressure drop is equal to the friction factor multiplied by the pipe length, density, squared velocity, and divided by the pipe diameter. However, to calculate the friction factor, we need the Reynolds number. The Reynolds number can be calculated as (density × velocity × diameter) divided by the oil viscosity. Once the Reynolds number is known, the friction factor can be determined. Finally, using the friction factor, we can calculate the frictional pressure drop.

c) To calculate the in-situ oil velocity, we need to consider the total volume of the pipe, including both oil and gas. The total pipe volume is calculated as the pipe cross-sectional area multiplied by the wellbore length. Subtracting the gas volume from the total volume gives the oil volume. Dividing the oil volume by the total time taken by the oil to flow through the pipe (converted to seconds) gives the average oil velocity.

d) The flow regime of the two-phase flow can be determined based on the oil and gas mixture properties and flow conditions. Common flow regimes include bubble flow, slug flow, annular flow, and mist flow. These regimes are characterized by different distribution and interaction of the oil and gas phases. To determine the specific flow regime, various parameters such as gas and liquid velocities, mixture density, viscosity, and surface tension need to be considered. Additional information would be required to accurately determine the flow regime in this scenario.

Learn more about viscosity here: brainly.com/question/14004181

#SPJ11

Given information: Number of employees (n) = 10, Mean (μ) = $70,000, Median = $55,000, Standard deviation (σ) = $20,000. The largest number on the list = $100,000. We have to find the new mean, variation, and standard deviation after the value is changed from $100,000 to $1,000,000.

Now the largest value on the list is $1,000,000, and the other nine values range from $55,000 to $100,000. So, the new mean can be calculated as follows:

New mean = [($55,000 × 4) + ($70,000 × 5) + ($100,000 × 1) + ($1,000,000 × 1)] / 10= $623,000Hence, the new mean is $623,000.Using the formula, Variance (σ²) = Σ(xi - μ)²/n, where xi = data value, μ = mean and n = number of data values.

In the previous case, variance was equal to:(20,000² + 15,000² + 10,000² + 5,000² + 0² + 5,000² + 10,000² + 15,000² + 30,000² + 30,000²)/10 = 2,100,000Now, let’s calculate the variance with $1,000,000 as the highest value.

Variance = (20,000² + 15,000² + 10,000² + 5,000² + 0² + 5,000² + 10,000² + 15,000² + 900,000² + 900,000²)/10Variance = 3,580,000,000

The new variance is 3,580,000,000.Hence, the new variance is $3,580,000,000.Now, using the formula,Standard deviation (σ) = √Variance

The old standard deviation was:σ = √(2,100,000) = $1,449.14The new standard deviation will be:σ = √(3,580,000,000) = $59,797.96Hence, the new standard deviation is $59,797.96.

Know more about Variance here:

https://brainly.com/question/31432390

#SPJ11

Know more about Variance here:

https://brainly.com/question/31432390

#SPJ11

Answer:

There could be 0, 2, or 4 complex solutions

Step-by-step explanation:

The Fundamental Theorem of Algebra states that any polynomial with n degree will have n solutions So since the degree of the polynomial you provided has a degree of 4, that means there are 4 possible solutions. This question specifically asks for complex zeroes. Complex zeroes come in conjugate pairs, so that means if you have one complex zero, there is another complex zero which is it's conjugate. For this reason, there can only be an even number of complex zeroes. And since there's 4 possible solutions, There could be 0, 2, or 4 complex solutions

Answer:

7+10n

Step-by-step explanation:

solve both sides

-1 + -10n +8

solve again

move 8 over to it and add it to -1

7 +10n,

if I'm wrong someone please point it out.

A: To determine when the lizard is back on the water, we need to find the time when the height (h) is equal to 0. So we set the equation -12t^2 + 6t = 0 and solve for t.

-12t^2 + 6t = 0

Factor out common terms:

-6t(2t - 1) = 0

Set each factor equal to 0:

-6t = 0 or 2t - 1 = 0

Solving each equation:

-6t = 0 --> t = 0

2t - 1 = 0 --> 2t = 1 --> t = 1/2

So the lizard is back on the water at t = 0 seconds and t = 1/2 seconds.

B: The height of each jump can be determined by substituting the time (t) values into the equation h = -12t^2 + 6t.

For t = 0 seconds:

h = -12(0)^2 + 6(0)

h = 0

For t = 1/2 seconds:

h = -12(1/2)^2 + 6(1/2)

h = -12(1/4) + 6/2

h = -3 + 3

h = 0

So each jump has a height of 0 feet.

C: To find the time it takes to reach the highest point, we need to find the vertex of the parabolic equation -12t^2 + 6t. The time at the vertex represents the highest point.

The formula for the x-coordinate of the vertex of a quadratic equation in the form ax^2 + bx + c is given by -b/(2a). In this case, a = -12 and b = 6.

t = -6/(2(-12))

t = -6/(-24)

t = 1/4

So it takes 1/4 seconds to reach the highest point.

Therefore, the answers are:

A: The lizard is back on the water at t = 0 seconds and t = 1/2 seconds.

B: Each jump has a height of 0 feet.

C: It takes 1/4 seconds to reach the highest point.

The lowest and greatest values in the dataset, divided by two, make up the Mid-range. Thus, this provides us with the midrange value.

The mid-range or mid-extreme is the arithmetic mean of the highest and minimum values of the data set and is used in statistics as a measure of a sample's central tendency.

The difference between the greatest and minimum values, which is a measure of statistical dispersion, is strongly related to the mid-range.

The two measurements are complementary in that one can determine the sample's maximum and minimum values by knowing the range and the midpoint.

Therefore, the lowest and greatest values in the dataset, divided by two, make up the Mid-range. Thus, this provides us with the midrange value.

Know more about the Mid-range here:

https://brainly.com/question/15971855

#SPJ4

Answer:

----------------------

General equation for inverse variation is:

Find the value of k by substituting values of x and y:

Substitute the value of k to get the equation:

The Laplace transform of f(t) is f(s) = (1/(s-2)) - 8 e^(-4s).

We can split the function into two parts:

f(t) = e^(2t) - 8h(t-4)

Taking the Laplace transform of each part separately, we get:

L{e^(2t)} = ∫_0^∞ e^(-st) e^(2t) dt = ∫_0^∞ e^(t(2-s)) dt = 1/(s-2) (by using the Laplace transform formula for e^(at))

L{8h(t-4)} = 8 e^(-4s) (by using the formula for the Laplace transform of the unit step function h(t-a))

Thus, the Laplace transform of f(t) is:

f(s) = L{f(t)} = L{e^(2t)} - L{8h(t-4)} = 1/(s-2) - 8 e^(-4s)

Therefore, the Laplace transform of f(t) is f(s) = (1/(s-2)) - 8 e^(-4s).

To know more about Laplace transform refer here:

https://brainly.com/question/31481915

#SPJ11

Answer: 2.865Feet.

Step-by-step explanation: The problem is really asking:

What is the difference in the radii of two circles, one having a circumference (C1) of 25,000 miles and the other having a circumference (C2) of 25,000 miles + 18 feet.

The circumference (C) of a circle, in terms of the radius (r), is given by:

C=2×π29r Rewrite this in terms of r.

r=C/2×π

For the first circumference (C1=25,000 miles), we can write:

r1+=+C1%2F2%28pi%29

For the expanded circumference (C2=25,000 mi + 18 ft) we can write:

r2+=+C2%2F2%28pi%29

To find the difference (d), we'll subtract r1 from r2.

d+=+C2%2F2%28pi%29+-+C1%2F2%28pi%29

d+=+%28C2-C1%29%2F2%28pi%29

But C2-C1+=+18feet

So:

d+=+18%2F2%28pi%29

d+=+9%2F%28pi%29

d+=+2.865Feet.

Step-by-step explanation:

in the form

y = mx + c

m is the gradient (or slope) of the line, and c is the y-intercept (the y-value when x = 0).

y = 4x + c

we get c by using the given point coordinates :

-2 = 4×-3 + c = -12 + c

10 = c

so the full equation is

y = 4x + 10

(i) The 90% confidence interval for the population parameter is (27.37, 45.79).

(ii) The interval (boundary values) of the 90% confidence interval is shown on the distribution graph.

After calculating the lower and upper limits using the formula above, the interval is found to be (27.37, 45.79) and  we can be 90% confident that the population parameter lies within this range.

Given the following information:

Random sample of 18 students

Sample standard deviation = 10.49

90% confidence interval

To find:

(i) Form a 90% confidence interval for the population parameter.

(ii) Show the interval (boundary values) on the distribution graph.

The population variance can be estimated using the sample variance. Since the sample size is small (n < 30) and the population variance is unknown, we will use the t-distribution instead of the standard normal distribution (z-distribution). The t-distribution has fatter tails and is flatter than the normal distribution.

The lower limit of the 90% confidence interval is calculated as follows:

Lower Limit = sample mean - (t-value * standard deviation / sqrt(sample size))

The upper limit of the 90% confidence interval is calculated as follows:

Upper Limit = sample mean + (t-value * standard deviation / sqrt(sample size))

The t-value is determined based on the desired confidence level and the degrees of freedom (n - 1). For a 90% confidence level with 17 degrees of freedom (18 - 1), the t-value can be obtained from a t-table or using statistical software.

After calculating the lower and upper limits using the formula above, the interval is found to be (27.37, 45.79).

(ii) Showing the interval (boundary values) on the distribution graph:

The distribution graph of the 90% confidence interval of the variance of the students' final grade is plotted. The range between 27.37 and 45.79 represents the interval. The area under the curve between these boundary values corresponds to the 90% confidence level. Therefore, we can be 90% confident that the population parameter lies within this range.

Learn more about standard deviation

https://brainly.com/question/29115611

#SPJ11

Answer:

  about -0.79 mg/hour

Step-by-step explanation:

You want the rate of change of the amount of medication in a patient after 4 hours if the amount after t hours is modeled by y=88/(1+e^(t+0.7)).

The rate of change is found by taking the derivative of the function with respect to time. Let u = 1+e^(t+0.7). Then du/dt = e^(t +0.7).

The function can be written ...

  y = 88/u = 88·u^-1

so its derivative is ...

  dy/dt = (-88·u^-2)·du/dt

  dy/dt = -88(e^(t +0.7))/(1 +e^(t +0.7))^2

The value of the rate of change at t=4 is ...

  dy/dt = -88(e^(4 +0.7))/(1 +e^(4 +0.7))^2 ≈ -88(109.95)/(1 +109.95)^2

  dy/dt ≈ -0.78602 ≈ -0.79 . . . . . . mg/h

The rate of change in the amount of medication is about -0.79 mg/h.

It interpreted support for Fermi’s analysis.

The Fermi paradox is a disagreement between different high estimations for the existence of alien life and the lack of conclusive, blatant proof for it. If life were so simple, "someone from someplace must have come knocking by now," as one story from 2015 put it. Due to a casual conversation he had with fellow physicists Edward Teller, Herbert York, and Emil Konopinski in the summer of 1950, Italian-American Enrico Fermi is known for the paradox. The men talked about recent UFO sightings and the potential for faster-than-light travel as they were walking to lunch. Before Fermi abruptly asked, "But where is everybody?" during lunch, the conversation shifted to other topics (although the exact quote is uncertain).

To learn more about Fermi’s analysis, Visit:

https://brainly.com/question/766457

#SPJ4

Approximately 517 senior citizens out of a sample of 775 reported seeing a television commercial for life insurance, which corresponds to approximately 67% of the sample. This can be answered by the concept of Sample size.

To calculate the approximate number of senior citizens who saw a television commercial for life insurance, we multiply the percentage (67%) by the total sample size (775).

67% of 775 can be calculated as:

(67/100) × 775 = 0.67 × 775 = 517.25

Since we cannot have a fraction of a person, we round the result to the nearest whole number.

Therefore, approximately 517 senior citizens out of the 775 in the sample reported seeing a television commercial for life insurance.

To learn more about Sample size here:

brainly.com/question/30885988#

#SPJ11

The area left for children for playing 114464 sq. m

As per the given data inside a park:

The length of the park is 400 m

The breadth of the park is 300 m

The formula for the area of the park = Length × Breadth

= (400 × 300) sq. m

= 120000 sq. m

The width of the walking track inside the park is 4 m

The length of the park without the walking track

= 400 − (4 + 4) m

= 400 − 8 m

= 392 m

The breadth of the park without the walking track

= 300 − (4 + 2) m

= 300 − 8 m

=292 m

Area of the park without the walking track:

= 392 × 292

= 114464 sq. m

Therefore the area left for children for playing other than the walking track is 114464 sq. m.

For more questions on the area

https://brainly.com/question/17677554

#SPJ4

Answer:

2 1/4

Step-by-step explanation:

if it is right brainliest pls

Answer:

3 3/4.

Step-by-step explanation:

Add the whole number first.

Then, add 3/4 3 times.

Simplify:

We now use 2/4 once.

Lamar's family used 3 3/4 ranch in total.

hope this helped.

Answer: x= -2

               x=4

Step-by-step explanation:

Answer:

im pretty sure both x's equal -4

Step-by-step explanation:

(-4 + 3)= -1

(-4 - 1)= -5

-5 x -1=5

When you multiply a negative number times a negative number that will equal a positive number.

Answer:

147

Step-by-step explanation:

trust me im Really Smart GIVE ME BRAINLIST just did this question im first

Answer:

What is the question? BUT off guess I'm assuming its option (C) - 147

Step-by-step explanation:

Hope this helped if so please leave a rating! :)

THANKS!

Answer:

I believe transversal is the correct answer because it isn't a part of the triangle.

Answer:

2b( 12 - 17a)

Step-by-step explanation:

This is the answer because:

1) Fator 2b out of 24b - 34ab:

2b x 12 = 24b = 24b ÷ 2b = 12

2b x 17a = 34ab = 34ab ÷ 2b = 17a

Therefore, the answer is 2b( 12 - 17a).

Hope this helps! :D

Answer:

2b( 12 - 17a)

Step-by-step explanation:

good? same test i have and i fail the said this was the answer

The sample of 25 people interviewed by the sportswriter is not a Random sample. The correct answer is Option C. No, because not all residents of Columbus, Ohio have an equal chance of being selected.  

In statistics, sampling is the process of selecting a subset of individuals or units from a larger population to estimate or infer information about the population.

A random sample is a subset of individuals or units from a larger population that is selected in a way that every member of the population has an equal chance of being selected. In other words, a random sample is unbiased and represents the population as a whole.

In the given scenario, the sportswriter interviews the first 25 people who enter the stadium before a game in Columbus, Ohio to determine how strongly Columbus residents support building a new stadium for the local minor league baseball team.

Now, the question is whether this sample is a random sample or not.

The answer is "No, because not all residents of Columbus, Ohio have an equal chance of being selected," which is option C.

The reason is that the sportswriter only interviews the first 25 people who enter the stadium before the game. This means that the sample is not selected randomly from the entire population of Columbus residents, but only from the people who happened to be at the stadium at that particular time.

Moreover, people who attend minor league baseball games may not be representative of the entire population of Columbus residents. For example, people who attend baseball games may be more likely to support building a new stadium than those who do not attend such games.

Therefore, the sample of 25 people interviewed by the sportswriter is not a random sample and may not be representative of the entire population of Columbus, Ohio. The results of the survey based on this sample may not accurately reflect the opinions of all Columbus residents.

To know more about Random Sample here

https://brainly.com/question/12719654

#SPJ4

Complete Question

A sportswriter wants to know how strongly Columbus, Ohio residents support building a new stadium for the local minor league baseball team. She stands outside the stadium before a game and interviews the first 25 people who enter the stadium. Is this a random sample?

A. Yes, because it gives very accurate results.

B. Yes, because all fans had a chance to be asked.

C. No, because not all residents of Columbus, Ohio have an equal chance of being selected.

D. No, because the sample size is not right.

The y-intercept of the line y = -3/4 is  -3/4 and the slope is 0 .

In the question ,

it is given that ,

that the equation of the line is y \(=\) -3/4 .

we can rewrite the equation in point slope form that is y = mx + c

where m \(=\) slope and

c \(=\) y intercept  .

So , on rewriting the given equation , in point slope form

we get ,

y = 0*x -3/4

On comparing , it with the point slope form of the line ,

we can say that the slope of the line is 0 and the y intercept is -3/4 .

Therefore , The y-intercept of the line y = -3/4 is  -3/4 and the slope is 0 .

Learn more about Lines here

https://brainly.com/question/19331878

#SPJ1

Answer:

4 = the top row would be 1,2,3,4,5

    the bottom row would be 14,28,42,56,70

the equation is y= 14x

5 = yes it is proportional. y=21x

6 =no it is not proportional.

7 = yes it is proportional because y= 7x

Step-by-step explanation:

The type of analysis that first equates groups on the basis of overall score and then evaluates differences in performance between the groups on particular items in an attempt to identify sources of bias is called Differential Item Functioning (DIF) analysis.

DIF analysis compares the performance of different groups on individual test items while controlling for overall score differences. This method is commonly used in educational and psychological research to identify potential sources of bias in tests or assessments.

DIF analysis is typically used to ensure that test items are fair and unbiased. If a test item is found to have DIF, it suggests that the item is not functioning the same way for all test-takers and may be unfairly advantaging or disadvantaging certain subgroups.

DIF analysis involves comparing the probability of answering a test item correctly between two or more groups, such as males and females. If there is a statistically significant difference in the probability of answering the item correctly between the groups, it suggests that the item may be exhibiting DIF. Further investigation is then needed to determine why the DIF is occurring and whether the item should be revised or removed from the test.

Learn more about "Differential Item Functioning (DIF) analysis":

https://brainly.com/question/31570479

#SPJ11