1. Create a horizontal axis labeled "Time Spent on Homework Problem (Minutes)."
2. Choose an appropriate scale for the axis, such as labeling every other unit of time from 0 to 18.
3. Plot a dot for each student's data point along the horizontal axis.
4. Arrange the dots in order from smallest to largest time spent on the problem.
5. Title the dot plot to reflect the data set being represented, such as "Math Homework Problem Time Spent: Mean 9 Minutes, MAD 7 Minutes."
6. Include a legend or key if needed to clarify the meaning of the dot plot.(The dot plot is attached below)
To draw a dot plot representing a data set where the mean amount of time spent on one math homework problem is 9 minutes and the MAD is 7 minutes for a group of ten students, we can follow these steps:
The resulting dot plot may show a spread of data between 2 and 16 minutes, with more dots around the center or mean of 9 minutes and fewer dots at the tails. The MAD of 7 minutes suggests a relatively high degree of variability in the data, with some students spending significantly less or significantly more time on the math homework problem. The dot plot can help to visualize these differences and identify any potential outliers in the data.
For such more questions on horizontal
https://brainly.com/question/30197734
#SPJ8
what is the graph of −36≤2x+4(x−3)
What is the equation in point slope form of the line that is perpendicular to the given line and passes through the point(2,5)?
Answer:
Step-by-step explanation:
To find the equation of a line that is perpendicular to a given line and passes through a specific point, we need to follow a few steps:
Find the slope of the provided line.
The point-slope form of a line is given by: y - y1 = m(x - x1), where (x1, y1) represents the given point.
Substituting the values, the equation of the perpendicular line becomes:
y - 5 = (-1/m)(x - 2)
Simplifying the equation further, we can rewrite it in point-slope form:
y - 5 = (-1/m)x + (2/m)
3. Convert 0.002 kilojoules to decijoules:
Answer:
20 is the answer.
Answer:
2 x 1.0E-5 kJ = 2.0E-5 Kilojoules.
Step-by-step explanation:
davey read 58 pages on saturday and p pages on
The value of p is 15
What is the unitary method?The unitary method is a method in which you find the value of a unit and then the value of a required number of units.
Given here: Davey reads 58 pages on Saturday and on rest of the days p pages per day
Therefore everyday he reads 58+p pages per day
If he reads for 10 days and he reads a total 1408 pages then we have
In a week there is one Saturday
thus
9p+58=1408
9p=1350
p=15
Thus on the other days p is equal to 15 pages per day.
Learn more about the unitary method here:
https://brainly.com/question/22056199
#SPJ1
The complete question is Davey reads 58 pages on Saturday and p pages on other days and on a span of 10 days he reads 1408 pages. Find the value of p.
For what value of x is angle ABC isosceles?
Let A, B, C be three points with position vectors a, b, c respectively. You may assume that the three points A, B, C do not all lie on the same straight line. Let D, E, F be the midpoints of the line-segments BC, AC, AB respectively. What is the point with position vector 1/3 (a+b+c)?
The midpoint of three points with the position vector 1/3(a + b + c) is given by:
P = (b + c - B - C) / 2 + (1/3)(b + c)
The point with the position vector 1/3(a + b + c) is given by:
P = F - (2/3)D - (1/3)E + (1/3)(b + c)
To find the point with the position vector 1/3(a+b+c), we can use the fact that the position vector of a point that divides a line segment in a given ratio can be found by taking the weighted average of the position vectors of the endpoints.
Given that D, E, and F are the midpoints of line segments BC, AC, and AB, respectively, we know that:
D = (B + C) / 2
E = (A + C) / 2
F = (A + B) / 2
To find the point with the position vector 1/3(a+b+c), we can substitute a = 3F - 2D - E into the equation:
1/3(a + b + c) = 1/3((3F - 2D - E) + b + c)
Expanding the equation further:
1/3(a + b + c) = 1/3(3F - 2D - E + b + c)
= (F - (2/3)D - (1/3)E) + (1/3)(b + c)
Therefore, the point with the position vector 1/3(a + b + c) is given by:
P = F - (2/3)D - (1/3)E + (1/3)(b + c)
Substituting the midpoints:
P = (A + B) / 2 - (2/3)((B + C) / 2) - (1/3)((A + C) / 2) + (1/3)(b + c)
= (A + B - 2B - 2C - A - C + b + c) / 2 + (1/3)(b + c)
= (b + c - B - C) / 2 + (1/3)(b + c)
Therefore, the midpoint of three points with the position vector 1/3(a + b + c) is given by:
P = (b + c - B - C) / 2 + (1/3)(b + c)
The point with the position vector 1/3(a + b + c) is given by:
P = F - (2/3)D - (1/3)E + (1/3)(b + c)
For such more questions on midpoint of three points.
https://brainly.com/question/18226052
#SPJ11
there were 8 roses in the vase . sally cut some more roses from her flower garden. there are now 13 roses in thevase . how many roses did she cutr
Answer:
5 roses
Step-by-step explanation:
13 - 8 = 5
Answer:
5
Step-5by-step explanation:
13 - 8 = 5
3x less than 2 times the sum of 2x and 1 is equal to the sum of 2 and 5
Answer:
5
Step-by-step explanation:
For a survey based on 2,700 adults, what is the approximate margin of error? (round your answer to the nearest thousandth.)
The approximate margin of error for a survey based on 2,700 adults, when rounded to nearest thousand is 0.021.
In statistical surveys, the margin of error is a measure of the expected amount of random sampling error that is present in a survey's results. It is a range of values that is likely to contain the true value of the population parameter being estimated, with a certain degree of confidence.
In other words, the margin of error is the amount by which the sample estimate may differ from the true value of the population parameter.
The margin of error is affected by several factors, such as the size of the sample and the level of confidence. A larger sample size typically results in a smaller margin of error because larger samples provide more accurate estimates of the population parameter.
Similarly, a higher level of confidence requires a larger margin of error, since the interval of values that could contain the true population parameter becomes wider as the level of confidence increases.
Assuming a 95% level of confidence, the formula for calculating the margin of error is:
Margin of error = z * sqrt(p * (1 - p) / n)
where:
z is the z-score for the desired level of confidence (1.96 for 95%)
p is the sample proportion, which is the proportion of the sample that exhibits a particular characteristic of interest (e.g., the proportion of respondents who support a certain political candidate)
n is the sample size, which is the number of observations in the sample.
If the sample proportion is not known, it is common to use a value of 0.5, which corresponds to the maximum possible margin of error for a given sample size. This is because the maximum sampling error occurs when the sample proportion is closest to 0.5, which gives the least amount of information about the true population parameter.
To calculate the margin of error for a survey of 2,700 adults, we can assume a sample proportion of 0.5 and a 95% level of confidence. Plugging these values into the formula, we get:
Margin of error = 1.96 * sqrt(0.5 * (1 - 0.5) / 2700)
= 1.96 * sqrt(0.25 / 2700)
= 1.96 * 0.008
= 0.016
Rounding to the nearest thousandth, the approximate margin of error is 0.021. This means that we can expect the survey results to be within plus or minus 2.1 percentage points of the true population parameter, with a 95% level of confidence.
To learn more about margin of error click on,
https://brainly.com/question/30621592
#SPJ4
I need help with this
how much money deposited now will provide payment of Rs. 15000 at the end of each half year for 10 years, if interest is 16% compounded six-monthly
The interest is 16% compounded semi-annually, is Rs. 121,179.10.
To determine how much money needs to be deposited now to provide a payment of Rs. 15,000 at the end of each half year for 10 years, we will use the formula for the present value of an annuity.
Present value of an annuity = (Payment amount x (1 - (1 + r)^-n))/rWhere:r = interest rate per compounding periodn = number of compounding periodsPayment amount = Rs. 15,000n = 10 x 2 = 20 (since there are 2 half years in a year and the payments are made for 10 years)
So, we have:r = 16%/2 = 8% (since the interest is compounded semi-annually)Payment amount = Rs. 15,000Using the above formula, we can calculate the present value of the annuity as follows:
Present value of annuity = (15000 x (1 - (1 + 0.08)^-20))/0.08 = Rs. 121,179.10Therefore, the amount that needs to be deposited now to provide payment of Rs. 15,000 at the end of each half year for 10 years, if the interest is 16% compounded semi-annually, is Rs. 121,179.10.
For more such questions on semi-annually
https://brainly.com/question/30573341
#SPJ8
Audrey works in a factory. She receives a salary of $10 per hour and piecework pay of 15 cents
per unit produced. Last week she worked 38 hours and produced 755 units.
a. What was total hourly pay for the week?
Work
Sentence
b.what was her total pay for the week?
(whoever responds first gets a crown!)
Answer:
A. total hourly pay $380.00 &
B. total pay for the week $493.25
Step-by-step explanation:
38 hours x $10 per hour = 380.00
755 unit products x .15 = 113.25
380 hourly pay + 113.25 unit pay = 493.25
Tyson’s puppy weighed 8 pounds 3 ounces last year.
In one year the puppy gained 2 pounds 4 ounces.
How much does Tyson’s puppy weigh now in ounces?
Last year- 8 lbs 3 ounces
Add 2 lbs and 4 ounces
Which is 10 lbs 7 ounces
10 lbs in onces is 160 ounces
Then you add the other 7 ounces so the final answer is 167 ounces
Tyson’s puppy weighs 167 ounces!
Good luck please mark me as braniliest!!!!!!
Based on this theory, what distance will the handler move from the starting point to the return point if he creates an arc of a circle with radius 70 feet?
Group of answer choices
439.6 feet
3846.5 feet
109.9 feet
1758.4 feet
The Distance the handler will move from the starting point to the return point will be approximately 439.8204 feet.
The distance the handler will move from the starting point to the return point when creating an arc of a circle with a radius of 70 feet, we need to find the length of the arc.
The formula to calculate the length of an arc is given by:
Length of arc = (θ/360) * 2πr
Where:
θ is the central angle of the arc (in degrees)
r is the radius of the circle
In this case, since the handler is creating a full circle, the central angle is 360 degrees.
Length of arc = (360/360) * 2π * 70
Length of arc = (1) * 2π * 70
Length of arc = 2π * 70
Length of arc = 140π
To find the approximate value in feet, we can use the approximation π ≈ 3.14159.
Length of arc ≈ 140 * 3.14159
Length of arc ≈ 439.8204 feet
Therefore, based on the given theory and using a circle with a radius of 70 feet, the distance the handler will move from the starting point to the return point will be approximately 439.8204 feet.
For more questions on Distance .
https://brainly.com/question/30395212
#SPJ8
Nadia wants to estimate the mean driving range for her company's new electric vehicle. She'll sample vehicles and measure each of their driving ranges to construct a confidence interval for the mean driving range. She wants the margin of error to be no more than 10 kilometers at a 90% level of confidence. A pilot study suggests
that the driving ranges for this type of vehicle have a standard deviation of 15 kilometers.
Which of these is the smallest approximate sample size required to obtain the desired margin of error?
A) 5 vehicles
B) 7 vehicles
C) 10 vehicles
D) 15 vehicles
E) 30 vehicles
Using the z-distribution, it is found that the smallest sample size required is given by:
B) 7 vehicles.
What is the margin of error for a z-distribution confidence interval?It is given by:
\(M = z\frac{\sigma}{\sqrt{n}}\)
In which:
z is the critical value.\(\sigma\) is the population standard deviation.n is the sample size.In this problem, we have a 90% confidence level, hence\(\alpha = 0.9\), z is the value of Z that has a p-value of \(\frac{1+0.9}{2} = 0.95\), so the critical value is z = 1.645.
The margin of error and the population standard deviation are given by, respectively:
\(M = 10, \sigma = 15\).
Then, we solve for n to find the needed sample size.
\(M = z\frac{\sigma}{\sqrt{n}}\)
\(10 = 1.645\frac{15}{\sqrt{n}}\)
\(10\sqrt{n} = 1.645 \times 15\)
\(\sqrt{n} = 1.645 \times 1.5\)
\((\sqrt{n})^2 = (1.645 \times 1.5)^2\)
\(n = 6.1\)
Rounding up, 7 vehicles have to be sampled, hence option B is correct.
More can be learned about the z-distribution at https://brainly.com/question/25890103
An angle measured 140 more than the measure of its supplementary angle. What is the measure of each angle ?
Answer:
Supplementary angle equals 180°
Complementary angle equals 360°
Step-by-step explanation:
Conjugate angles are more or less related to complementary and supplementary angles. The sum of the two angles put together equals 360 degrees. The last angle that will be named is straight. The measure of the angle equals 180 degrees.
Despite the large number of questions Allison missed on her final exam in Organic Chemistry, her score was listed as being in the 72nd percentile of scores for all students. Her score falls
a. between the first quartile and the median.
b. between the minimum and the first quartile.
c. between the third quartile and the maximum
d. between the median and the third quartile.
Answer:
A
Step-by-step explanation:
Suppose we increase the overall number of doctors in the U.S. in all fields and specialties of medical practice by equal percentages, which would shif
Answer: hi your question is incomplete below is the complete question
Suppose we increase the overall number of doctors in the U.S. in all fields and specialties of medical practice by equal percentages, which would shift the supply curves in all the respective medical practice markets. Suppose we were to analyze two separate medical practice markets: Plastic Surgery Cardiology Which markets' price would be most impacted by this increase in the supply of doctors? Which markets' quantity would be most impacted by this increase in the supply of doctors?
answer :
Change in Market price = Cardiology
Change in Quantity = Plastic surgery
Step-by-step explanation:
Given that we are analyzing two separate markets with different levels of importance .
The demand for plastic surgery is more elastic when compared with Cardiology and this is due to the importance of Cardiology over plastic surgery.
The market price that will be affected by the increase in doctors supply is Cardiology market price while the Market quantity that would be affected by the increase is quantity of Plastic surgery
Magic Realm, Inc., has developed a new fantasy board game. The company sold 15,000 games last year at a selling price of $20 per game. Fixed costs associated with the game total $182,000 per year, and variable costs are $6 per game. Production of the game is entrusted to a printing contractor. Variable costs consist mostly of payments to this contractor.
Required:
1) Prepare a contribution format income statement for the game last year and compute the degree of operating leverage.
2) Management is confident that the company can sell 18,000 games next year (an increase of 3,000 games, or 20%, over last year).
Compute:
a) The expected percentage increase in net operating income for next year.
b) The expected total dollar net operating income for next year.
The expected total dollar net operating Income for next year = $70,000
1) The contribution format income statement for the game last year, and the degree of operating leverage is computed below:
Contribution format income statement for the game last year Sales (15,000 × $20) = $300,000
Variable expenses (15,000 × $6) = $90,000
Contribution margin = $210,000
Fixed expenses = $182,000Net operating income = $28,000
Degree of operating leverage = Contribution margin / Net operating income= $210,000 / $28,000= 7.5 2)
The expected percentage increase in net operating income for next year:
The expected sales in next year = 18,000
games selling price per game = $20
Therefore, Total sales revenue = 18,000 × $20 = $360,000
Variable expenses = 18,000 × $6 = $108,000
Fixed expenses = $182,000
Expected net operating income = Total sales revenue – Variable expenses – Fixed expenses
= $360,000 – $108,000 – $182,000= $70,000
The expected percentage increase in net operating income = (Expected net operating income - Last year's net operating income) / Last year's net operating income*100= ($70,000 - $28,000) / $28,000*100= 150%
The expected total dollar net operating income for next year = $70,000
To know more about Income.
https://brainly.com/question/30467914
#SPJ8
Which of the following arithmetic sequences have a common difference of 2-?
122
0-5-3-1-11.2
0214 2018 1101
O 1.5,3,4.5,6,7.5
O-4,-1.5,1,3,5,6,8.5
Answer: -4, -1.5, 1, 3.5, 6, 8.5
Step-by-step explanation:
Each term is the last term plus 2.5
Rachel cut a whole banana into 6 pieces and then ate all the pieces. She put a point on a number line to show how much she ate.
0
Which fraction is equal to the point shown on the number line?
Could someone help me solve this? TIA
The exact value of the specified trigonometric identity found using the the trigonometric identity for tan(A - B) and tan(arccos(x)) and tanarcsin(x)) is presented as follows;
\(tan\left(sin^{-1}\left(\dfrac{3}{4} \right) - cos^{-1}\left(\dfrac{1}{5}\right) \right) =\dfrac{32\cdot \sqrt{6}- 75\cdot \sqrt{7} }{209}\)
What is a trigonometric identity?A trigonometric identity is an equality that involves trigonometric functions that is valid for all values of the arguments of the equation
The required trigonometric identities are;
\(tan (A - B) = \dfrac{tan(A) -tan(B)}{1-tan(A)\cdot tan(B)}\)
\(tan(sin^{-1}(x)) = \dfrac{x}{\sqrt{1-x^2} }\)
\(tan(cos^{-1}(x)) = \dfrac{\sqrt{1-x^2}}{x }\)
Therefore;
\(tan\left(sin^{-1}\left(\dfrac{3}{4} \right) - cos^{-1}\left(\dfrac{1}{5}\right) \right) = \dfrac{tan\left(sin^{-1}\left(\dfrac{3}{4} \right)\right)-tan\left(cos^{-1}\left(\dfrac{1}{5} \right)\right)}{1-tan\left(sin^{-1}\left(\dfrac{3}{4} \right)\right)\times tan\left(cos^{-1}\left(\dfrac{1}{5} \right)\right)}\)
Which gives;
\(\dfrac{\dfrac{\frac{3}{4} }{\sqrt{1-\left(\frac{3}{4} \right)^2} } -\dfrac{\sqrt{1-\left(\frac{1}{5} \right)^2}}{\frac{1}{5} } }{1+\dfrac{\frac{3}{4} }{\sqrt{1-\left(\frac{3}{4} \right)^2} } \times \dfrac{\sqrt{1-\left(\frac{1}{5} \right)^2}}{\frac{1}{5} }}=\dfrac{\dfrac{3\cdot \sqrt{7}-14\cdot \sqrt{6} }{7} }{\dfrac{7+6\cdot \sqrt{42} }{7} }\)
\(\dfrac{\dfrac{3\cdot \sqrt{7}-14\cdot \sqrt{6} }{7} }{\dfrac{7+6\cdot \sqrt{42} }{7} }=\dfrac{32\cdot \sqrt{6}- 75\cdot \sqrt{7} }{209}\)
Which indicates that we have;
\(tan\left(sin^{-1}\left(\dfrac{3}{4} \right) - cos^{-1}\left(\dfrac{1}{5}\right) \right) =\dfrac{32\cdot \sqrt{6}- 75\cdot \sqrt{7} }{209}\)
Learn more about trigonometric identity here:
https://brainly.com/question/24496175
#SPJ1
Please somebody help
Answer:
options 1, 2, 3, 4, and 6 are all True
Step-by-step explanation:
Not True:
equation is y = 5/4x + 1/4
there are exactly two solutions
The diameter of a circle is 38 inches. What is the circle's area?
Use 3.14 for pi
please help !!!!!!
Answer:
%* divide by 68d equls ggg
Step-by-step explanation:
It is reall because you have no pr
Answer: The area of the circle is 1134
Step-by-step explanation:
Using the formula - A= pie R^2
Now substitute the radius
A= Pie X 19^2
A= pie X 361
A= 361 pie
A= 1134.1149795
A= 1134 :)
Cynthia Besch wants to buy a rug for a room that is 29 ft wide and
35 ft long. She wants to leave a uniform strip of floor around the
rug. She can afford to buy 475 square feet of carpeting. What
dimensions should the rug have?
Note that the dimensions that the rug should have given the above factors is: 25 by 19 This problem is solved using the concept of Quadratic Equations.
What is the computation showing the above result?To compute the dimensions that the rug should have, let x = the width of the uniform strip around the rug then the dimensions of the rug will be (35-2x) by (29-2x)
The equation thus is represented as:
(35-2x) * (29-2x) = 475 sq/ft expanding the brackets we have
⇒ 4x² - 128x + 1015 = 475 ; which is a quadratic equation.
Subtract 475 from both sides to get
⇒ 4x² −128x + 1015 − 475 = 475 − 475
⇒ 4x² −128x +540 = 0;
Factor left side of the equation.
4(x−5)(x−27)=0
Set factors equal to 0.
x−5=0 or x−27=0
x=5 or x=27
Note that only 1 solution makes sense
x = 5 ft is the width of the uniform strip around the rug
Find the dimensions of the rug
35 - 2(5) = 25 ft
29 - 2(5) = 19 ft
Thus, the rug should be 25 by 19 which has an area: 25 * 19 = 475.
She can afford 475ft², and the resolution of the quadratic expression for this problem indicates that using x=5 arrives at two dimensions 25ft, and 19ft, thus, hence we can conclude that the right dimensions which result in the area of carpet that Cynthia can afford (457ft²) is: 25ft by 19ft.
Learn more about quadratic equations:
https://brainly.com/question/17177510
#SPJ1
The drawing below represents the frame for an isosceles triangle-shaped roof. The height of the roof is 4 feet. What is the distance from Point A to Point B in feet? B 41 3 feet 8v 6 feet 8V3 feet 8 feet
We can make a drawing to see better:
In the picture above, we can see the sides AC and BC are equals because triangle ABC is isosceles, and also the segments AD and DB are equals for the same reason.
We can calculate the lenght of segment AD as:
\(\begin{gathered} \tan (30)=\frac{CD}{AD} \\ AD=\frac{CD}{\tan (30)}=\frac{4}{\frac{1}{\sqrt[]{3}}} \\ AD=4\cdot\sqrt[]{3} \end{gathered}\)With the lenght of segment AD we can calculate the lenght of AB as:
\(AB=2\cdot AD=8\cdot\sqrt[]{3}\)The correct answer is in yellow.
Melissa buys 1 calculator at £4.38 1 ruler at 45p 2 pencils at 29p each She pays with a £10 note. Work out how much change Melissa should get.
Answer:
£4.59
Step-by-step explanation:
4.38 + 0.45 + 0.58 (0.29 + 0.29) = 5.41
£10.00 - 5.41 = £4.59
Valeria is training for a marathon. She jogs the same 15 mile route twice in one week. On Monday, she jogged the route in 1.75 hours. Thursday, she tried to improve her speed. She jogged the same route in 1.63 hours. Her smart watch said her rate on Monday was 8.57 miles per hour. She forgot to set the smart watch to calculate her rate on Thursday. Use the information you have to calculate how fast she was running on Thursday.
Answer:
9.20 miles per hourStep-by-step explanation:
Given data
distance of the route = 15miles
time taken on Monday= 1.75hours
speed= distance./time
speed= 15/1.75
speed= 8.57 miles per hour
her smart watch is correct
time taken on Thursday= 1.63hours
speed= distance./time
speed= 15/1.63
speed= 9.20 miles per hour
she was jogging at 9.20 miles per hour
Find the value of y.
960
1660
y = [? ]°
Answer:
y = 48°
Step-by-step explanation:
The value of an inscribed angle is half the value of the arc it subtends.
The angle marked x subtends the arc marked 66°, so has a value of ...
x = 66°/2
x = 33°
The value of y is similarly found.
y = 96°/2
y = 48°
The angle marked with a dot is an external angle of the triangle, so is the sum of the remote internal angles, x and y:
dot angle = x + y = 33° +48° = 81°
Of course, angle z is the supplement of this:
z = 180° -81°
z = 99°
Complete this sentence: The shortest side of a triangle is always opposite the _____
A. second-longest side
B. longest side
C. angle with the smallest measure
D. angle with the greatest measure
By answering the above question, we may state that angle with the smallest measure, the smallest-measured angle
what are angles?An angle is a form in Euclidean geometry made composed of two rays, referred to as the angle's sides, that converge at a centre point known as the angle's vertex. In the plane where they are positioned, two rays may come together to make an angle. A planar collision produces an angle as well. Dihedral angles are what these are known as. A potential arrangement of two rays or lines that share a termination is called an angle in plane geometry. The Latin word "angulus," which means "horn," is where the English word "angle" originates. The intersection of the two rays, often referred to as the angles' sides, is known as the vertex.
angle with the smallest measure
To know more about angles visit:
https://brainly.com/question/14569348
#SPJ1