Demetri is a participant in an auditory detection study using the method of constant stimuli. He never detects the 10 unit tone. He detects the 20 unit tone 25% of the trials. He detects the 30 unit tone 50% of the trials. He detects the 40 unit tone 80% of the trials. He detects the 50 unit tone 95% of the trials. His threshold for hearing tones would be taken as the 10 unit tone. 20 unit tone. 30 unit tone. 40 unit tone. 50 unit tone
Answers
The 30 unit tone is the stimulus intensity at which Demetri detects the tone in 50% of the trials. This indicates that it is the level at which the auditory stimulus is perceptually just above the threshold of his hearing. The correct answer is: 30 unit tone.
In an auditory detection study using the method of constant stimuli, the threshold for hearing is typically defined as the stimulus intensity at which a participant detects the stimulus on a certain percentage of trials. In this case, Demetri's threshold for hearing tones would be determined based on the detection rates for different stimulus intensities.
Given the information provided:
- Demetri never detects the 10 unit tone.
- He detects the 20 unit tone 25% of the trials.
- He detects the 30 unit tone 50% of the trials.
- He detects the 40 unit tone 80% of the trials.
- He detects the 50 unit tone 95% of the trials.
Based on this data, we can observe that Demetri's detection performance improves as the stimulus intensity increases. The threshold for hearing is typically defined as the stimulus intensity at which the participant detects the stimulus on 50% of the trials. In this case, Demetri detects the 30 unit tone on 50% of the trials, indicating that it corresponds to his threshold for hearing.
Therefore, the correct answer is: 30 unit tone.
The 30 unit tone is the stimulus intensity at which Demetri detects the tone in 50% of the trials. This indicates that it is the level at which the auditory stimulus is perceptually just above the threshold of his hearing. Stimulus intensities below 30 units (such as the 10 unit and 20 unit tones) fall below his threshold and are not detected reliably. On the other hand, stimulus intensities above 30 units (such as the 40 unit and 50 unit tones) are detected with higher percentages, indicating that they are clearly audible to him.
By determining the threshold for hearing, researchers can understand the sensitivity of an individual's auditory system and make comparisons across participants or study conditions. In this case, Demetri's threshold is identified as the 30 unit tone, indicating the minimum stimulus intensity he can reliably detect.
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Related Questions
Suppose your roommate smokes in your apartment, imposing a cost on you. The Coase theorem suggests that one solution would involve:
Answers
The Coase theorem suggests that in situations like this, bargaining between the two parties can lead to an efficient outcome. In this case, the smoker and non-smoker (roommate and you) could negotiate to find a solution that minimizes the total cost to both parties.
For example, the smoker could agree to smoke outside or use an air purifier, while the non-smoker could offer to pay a portion of the cost of these solutions. Ultimately, the Coase theorem suggests that as long as property rights are clearly defined and transaction costs are low, the two parties can negotiate to find a mutually beneficial solution to the problem of smoking in the apartment.
1. Clearly defining property rights: Establish whether the apartment has a non-smoking policy or if you have the right to a smoke-free environment within your living space.
2. Engaging in negotiation: Communicate your concerns to your roommate and discuss the negative effects of their smoking on you.
3. Finding a mutually beneficial solution: Both parties can negotiate and arrive at a compromise. This could include your roommate agreeing to smoke outside, designating a specific area for smoking, or using a smoke-filtering device. In some cases, you may also consider offering compensation or splitting the costs of a smoke-filtering device.
By following these steps, both you and your roommate can reach an efficient solution that reduces the cost imposed on you due to your roommate's smoking.
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What is the place value of the 6 in the number 8405.236?
Answers
Answer:
6 thousandths
Step-by-step explanation:
the 2 is tenths the 3 is hundreths and the 6 is thousandths
Answer:
The 6 is in the thousands place.
Madeline has a mask collection of 260 masks. She keeps 117 of the masks on her wall. What percentage of Madeline's mask collection does she keep on her wall?
Answers
Answer:
55%
Step-by-step explanation:
Help me with this question please
Answers
Next, you need to count the number of scores that are less than or equal to 71. In this case, there are 6 scores that are less than or equal to 71, so the percentile rank of a score of 71 on
this test is 6/15 = 40%.
To find the score that corresponds to the 60th percentile, you need to count the number of scores that are less than or equal to the 60th percentile. In this case, there are 9 scores that are less than or equal to the 60th percentile, so the score that corresponds to the 60th percentile is 85.
ANSWER FAST! Which expression is equivalent to 7^3•7-^5
Answers
7^3x7^-5
7x7x7=343
-7x-7x-7x-7x-7=-16807
343x-16807
-5764801
hope it helps!
if not, sorry...
You are a district sales manager at the sales target for your team135,000 per month ?
Answers
You are a district sales manager at the sales target for your team 135,000 per month. Your team's annual sales target is $1,620,000.
To calculate the annual sales target for your team, you need to multiply the monthly target by 12 (the number of months in a year):
Annual sales target = Monthly sales target x 12
Given that the monthly sales target for your team is $135,000, the annual sales target would be:
Annual sales target = $135,000 x 12
= $1,620,000
A Sales Manager is a professional responsible for managing a team of sales representatives within a specific geographic area or district. The role typically involves setting and achieving sales targets, developing and implementing sales strategies, and managing relationships with key customers.
Sales Managers are responsible for recruiting, training, and supervising sales staff, as well as monitoring their performance and providing coaching and guidance as needed. They also work closely with other departments within the organization, such as marketing and finance, to ensure that sales goals are aligned with overall business objectives. They must possess strong leadership and communication skills, as well as a deep understanding of their company's products or services and the competitive landscape in which they operate.
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Complete Question:-
You are a district sales manager at the sales target for your team 135,000 per month ? What is your annual sales?
What expression is equivalent to (x2 + 2x − 6) – (5x^2 + 2x − 8)?
Answers
you collect data on sunburns and ice cream consumption and find that the people who had sunburns consumed more ice cream. you find that higher ice cream consumption is associated with a higher probability of sunburn. does that mean ice cream consumption causes sunburn? what could have been a confounding variable in this study? explain why
Answers
A confounding variable in this study is Temperature
What is Temperature?
The average kinetic energy of a system is measured by its temperature. The kinetic energy of a system starts to rise as the particle's velocity increases, which raises the system's temperature. The energy that is transferred when two bodies with different surface temperatures come in touch is referred to as heat.
Concept:
Confounding factor Temperature is a confounding factor in the study since it is an unanticipated variable that affects the dependent variable and, as a result, alters the study's conclusions.
Greater ice cream sales do not result from sunburns, and sunburns do not result from increased ice cream sales. This example ignores the weather's confusing influence, which increases ice cream consumption while also increasing the risk of sunburn.
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a sauce recipe calls for 4 pounds of ground beef and you want to halve it how many ounces of ground beef do you need?
Answers
If you want to halve the recipe, you will need 32 ounces of ground beef. We can find it by multiplying.
To determine the amount of ground beef needed when halving the recipe, we need to convert pounds to ounces. There are 16 ounces in 1 pound.
Given that the original recipe calls for 4 pounds of ground beef, we can calculate the amount needed when halving the recipe by dividing it by 2.
Amount needed when halving = 4 pounds / 2 = 2 pounds.
To convert 2 pounds to ounces, we multiply it by 16:
2 pounds * 16 ounces/pound = 32 ounces.
Therefore, when you halve the recipe, you will need 32 ounces of ground beef.
In conclusion, to make half of the original recipe that calls for 4 pounds of ground beef, you will need 32 ounces of ground beef.
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go step by step with this problem.
Answers
The missing angle m∠U of the quadrilateral is calculated as: 117°
How to find the angle of a quadrilateral?From the given quadrilateral, we see that the angle m∠R is given as 117°.
We also see that the sides TU and RS are congruent to each other. No, we know that the sum of angles of a quadrilateral is 360 degrees.
However, we see that since TU and RS are congruent, this can be likened to an isosceles trapezium and as such the angle m∠U must be equal to the angle m∠R.
Thus:
m∠R = m∠U = 117°
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what is equivalent to 2x/x-7 - x+7/x
Answers
The formula 2x/(x-7) - (x+7)/x therefore equals (x² + 49) / (x × (x-7)).
What does an arithmetic the expression mean?Mathematical expressions consist of at least two integers or factors, a minimum of one math procedure, and a sentence. It's possible to multiply, divide, add, or remove with this mathematical procedure.
To simplify the expression 2x/(x-7) - (x+7)/x, we need to find a common denominator.
First, we can rewrite the second term as (x+7)/(x × 1), so the expression becomes:
2x/(x-7) - (x+7)/(x × 1)
To find a common denominator, we need to multiply the first term by x/x and the second term by (x-7)/(x-7):
2x × x / (x × (x-7)) - (x+7) × (x-7) / (x × (x-7))
Simplifying the expression further, we get:
(2x² - (x² - 49)) / (x × (x-7))
Simplifying the numerator, we get:
(2x² - x² + 49) / (x × (x-7))
And finally, we can simplify the expression to:
(x² + 49) / (x × (x-7))
Therefore, the expression 2x/(x-7) - (x+7)/x is equivalent to (x² + 49) / (x × (x-7)).
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Answer:
\(\frac{x^{2}+49 }{x(x-7)}\)
Step-by-step explanation:
1. The rectangular prism and rectangular
pyramid below have the same volume.
Determine the value of x, the height of the
pyramid.
6 in
X:
12 in
3 in
XI
12 in
6 in
Answers
The value of x is 9. A quadrilateral having four equal, right-angled angles is called a rectangle.
What is meant by rectangular?A rectangle is a closed 2-D shape with four sides, four corners, and four right angles (90°). The opposing sides of a rectangle are equal and parallel. A rectangle is a type of quadrilateral with four 90-degree-distance vertices and parallel sides that are equal to one another.It is also referred to as an equiangular quadrilateral because of this. A rectangle can also be referred to as a parallelogram since its opposing sides are equal and parallel.A rectangle is a quadrilateral with four equal, right-angled angles. In addition to having all equal angles, a square also has all equal sides. So, a specific example of a square is a rectangle.The following formula determines a rectangular prism's volume:
V = l × b × h
To achieve, we substitute the dimensions.
V = 6 × 3 × 12 in^3
The rectangular pyramid's volume is,
V = 1/3 × 6 × 12 × x in^3
Comparing the two volumes results in,
1/3 × 6 × 12 × x = 6 × 3 × 12
We divide through by 6 × 12 to get,
x/3 = 3
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find the slope of the line that passes through (2, 1) and (9, 4)
Answers
Answer:
m= 3/7
Step-by-step explanation:
(2, 1) and (9, 4)
m= (y2-y1)/(x2-x1)
m= (4 - 1)/ (9-2)
m= 3/7
Un recipiente contiene 3/4 de litro de líquido. ¿Cuántos mililitros hay
en el recipiente?
Answers
Given statement solution is :- Por lo tanto, there are 750 milliliters in the container.
Milliliter definition, a unit of capacity equal to one thousandth of a liter, and equivalent to 0.033815 fluid ounce, or 0.061025 cubic inch.
A milliliter is a metric unit of volume equal to a thousandth of a liter.
To convert liters to milliliters, we must remember that 1 liter is equivalent to 1000 milliliters.
Given that the container contains 3/4 of a liter, we can calculate the milliliters by multiplying 3/4 by 1000:
(3/4) * 1000 = (3 * 1000) / 4 = 3000 / 4 = 750
Por lo tanto, there are 750 milliliters in the container.
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MARKING BRAINLIST OR 5 STAR IF YOU ANSWER THESE.
Answers
Answer:
Left question- B
Right- D
Step-by-step explanation:
Left- 85÷5 is 17
Right- A cube has 6 sides and so 126 ÷6= 21
Answer:
17
42
Step-by-step explanation:
1st question: P (A) = 1/5 · 85 = 17
2nd question: P (1 or 2) = 1/6 + 1/6 = 2/6 or 1/3; 1/3 · 126 = 42
what is it the answer to 1/4 =100
Answers
The answer for the fraction 1/4 of 100 is 25.
Given,
The fraction; 1/4
We have to find the 1/4 of 100.
Fraction;
A fraction is referred to as the portion of a whole in mathematics. For instance, if a pizza is cut into four equal pieces, each one is represented by a quarter. Fractions make calculations quicker and easier by making it easier to distribute and judge numbers.
There are three main categories of fractions in mathematics. Proper fractions, incorrect fractions, and mixed fractions are these three types. The expressions with a numerator and a denominator are called fractions
Here,
1/4 of 100 = 1/4 x 100 = 25.
That is,
The answer for the fraction 1/4 of 100 is 25.
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PLEASE HELP! THIS IS DUE SOON!!!
Answers
Answer:
You need at least 90.5 points to get 200p
Step-by-step explanation:
200-109.5 = x
x = 90.5
Answer:
Step-by-step explanation:
OK so are you gonna do with this problem is going to take your 109.5 and you’re going to try to add to try to find 200 now you don’t want to go over 200 so it it can’t be 230 or anything through 200 so I can’t be 201 it Has to be 200 so you want to take 109.5 and add up until you get to 200 and then that will be your answer of what you added to get to 200 Hope this helps you good luck on your assignment
PLEASE HELP ME FAST!!! (IT"S ABOUT Y-INTERCEPT)
Answers
Answer:
the y-intercept is -5/9
Step-by-step explanation:
(hint, y=mx+b, b= y-intercept)
Example: y=4x-8
b=8
If MK = 10 m, find the length of MKL. Round to the nearest hundredth.
K
52
L
N
M
m
arc MKL =
Answers
Length of MKL is 15.71 m.
If MK = 10 m, find the length of MKL. Round to the nearest hundredth.
The radius of the circle is MK = 10 m.The central angle of arc MKL is 52 degrees.The ratio of the arc length to the circumference of the circle is equal to the ratio of the central angle to 360 degrees.Therefore, the arc length of MKL is equal to (52 degrees / 360 degrees) * 2 * pi * 10 m = 15.7079 m.Rounding to the nearest hundredth, the length of MKL is 15.71 m.Learn more about arc length.
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There are cows and turkeys at a farm, 82 heads and 264 legs in all. There is no need to explain that a cow has four legs, while a turkey has two legs. How many cows and turkeys are at the farm? How can I solve this using elimination or substitution can I have steps please. No spamming please
Answers
Cows+turkeys=82
4 cow legs + 2 turkey legs = 264
C+T=82
-T. -T
—————
C= 82-T wherever you see a “C” substitute this formula
4C+ 2T=264
4(82-T)+ 2T=264
(82*4)- (4T+2T)= 264
328-2T=264
-328. -328
————————
-2T= -64
-2T/-2= -64/ -2
T=32 there are 32 turkeys
There are 82 heads total
If we know there are 32 turkeys then the rest have to be cows.
82-32=50
Hope this helps!
I don't understand this.
Answers
Answer:
answer is simple
Step-by-step explanation:
you just need to find out solutions by your self
thank me laterWhat is the range of the function _____ ?
Answers
Answer: i think it is C
Step-by-step explanation: brainiest please?
What is the surface area of the square pyramid net?
Answers
The surface area of a square pyramid net can be found by adding the areas of the base and the four triangular faces.
First, find the area of the base by multiplying the length and width of the square base.
Area of base = length × width
Next, find the area of one of the triangular faces by using the formula:
Area of triangle = 0.5 × base × height
Since there are four triangular faces in a square pyramid, multiply the area of one triangle by four to find the total area of the triangular faces.
Area of triangular faces = 4 × (0.5 × base × height)
Finally, add the area of the base and the area of the triangular faces to find the total surface area of the square pyramid net.
Surface area = Area of base + Area of triangular faces
= (length × width) + (4 × (0.5 × base × height))
= (length × width) + (2 × base × height)
So, the surface area of a square pyramid net is the sum of the area of the base and the area of the four triangular faces.
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K
29
6x – 5
1 point
What is the value of x, in degrees?
15
в ОООО
18.22
20
2x – 3
24
(х+8
L
J
30
1 point
What is the measure of ZL?
115
93
ОООО
28
37
Answers
Answer:
1.x=20
<L=37
Step-by-step explanation:
(x+8)+(2x-3)+(6x-5)=180
x+8+2x-3+6x-5=180
9x-8+8=180
9x=180
x=180/9
x=20
<L=2x-3
<L=2*20-3
<L=40-3
<L=37
You tie a spherical balloon that is 2 feet in diameter to a
stake in the ground. The string is 15 feet long. The wind
blows and you observe that the top of the balloon is
8 feet over from the stake, as shown in the diagram.
What is the height, b, of the balloon?
Show your work.
15 ft
2 ft
8 ft
Answers
Answer:
Step-by-step explanation:
The graph compares the weights in pounds of 100 dogs and cats that are brought in to a veterinarian's office.
Two box and whisker plots showing weights of cats and dogs on a number line from 0 to 100. The upper plot represents the dog weights. For this upper plot, the minimum number is 10, the maximum number is 95, the right side of the box is 70, the left side of the box is 35, and the bar in the box is at 50. The lower plot represents cat weights. For this lower plot, the minimum number is 1, the maximum number is 18, the right side of the box is 13, the left side of the box is 6, and the bar in the box is at 10.
How many more dogs than cats were over 10 pounds?
10
30
50
100
Answers
Answer:
100
Step-by-step explanation:
Find expressions for the possible dimensions of the rectangular prism.
V = 12y3 + 13y2 + 3y
Answers
Answer:
Step-by-step explanation:
The dimensions of a rectangular prism are length, width, and depth.
Volume = length * width * depth
Here, V = 3y3 + 16y2 + 5y. If you can factor that into three terms, those could be the dimensions of the prism.
How do you factor it? Do all three terms have something in common? Sure, they all have a y, so factor a y out of each term.
V = y(3y2 + 16y + 5)
Then, factor what's left.
V = y(3y + 1)(y + 5)
The dimensions of the prism are y, (3y + 1), and (y + 5).
Answer:
The dimensions of a rectangular prism are length, width, and depth.
Volume = length * width * depth
Here, V = 3y3 + 16y2 + 5y. If you can factor that into three terms, those could be the dimensions of the prism.
How do you factor it? Do all three terms have something in common? Sure, they all have a y, so factor a y out of each term.
V = y(3y2 + 16y + 5)
Then, factor what's left.
V = y(3y + 1)(y + 5)
The dimensions of the prism are y, (3y + 1), and (y + 5).
Step-by-step explanation:
it's this write ... comments plz have a nice day
Which of tha following describes the graph of a quadratic function? O a. It opens to the right O b. It opens to the left O c. Its axis of symmetry is a vertical line O d. Its axis of symmetry is a horizontal line
Answers
A parabola is a curved form that represents the graph of a quadratic function. The vertex of a parabola is one of its focal points. The highest or lowest point on the graph corresponds to it. Consider it similar to the parabola's endpoint.
What does the term "quadratic function" mean?
A quadratic function has the formula f(x) = ax2 + bx + c, with a, b, and c being integers and a not equal to zero. A parabola is the shape of a quadratic function's graph.
The basic "U" shape of a parabola is the same whether it opens upward or downward, or with a different "width" or "steepness."
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2 ft
The circumference of the inner circle is 22 ft. The distance between the inner circle
and the outer circle is 2 ft. By how many feet is the circumference of outer circle
22
greater than the circumference of the inner circle? Use for .
7
C
Answers
Answer:
88/7 ft = 12.6 ft (nearest tenth)
Step-by-step explanation:
Circumference of a circle = 2\(\pi\)r
Radius of inner circle
Given:
circumference of inner circle = 22ft\(\pi\) = 22/7⇒ 22 = 2 x (22/7) x r
⇒ r = 3.5
So the radius of the inner circle is 3.5 ft
Radius of outer circle
If the distance between the inner circle and the outer circle is 2 ft, then the radius of the outer circle = 3.5 + 2 = 5.5
Circumference of outer circle
Therefore, circumference of outer circle:
= 2 x (22/7) x 5.5
= 242/7 ft
Difference between circumferences
Difference = outer circle circumference - inner circle circumference
= 242/7 - 22
= 88/7 ft
= 12.6 ft (nearest tenth)
The next model of a sports car will cost 14.1% less than the current model. The current model costs $55,000 . How much will the price decrease in dollars? What will be the price of the next model?
Answers
Answer:
$3900.71 is the amount of money subtracted from the next model
51099.29 is the cost of the second model
Step-by-step explanation: