Answer: 6 1/4 hours
Step-by-step explanation:
From the question, we are informed that Kate can bake 4 dozen cupcakes in an hour. The equation to determine how long it will take her to bake 25 dozen cupcakes will be gotten by dividing 25 dozen cupcakes by 4 dozen cupcakes. This will be:
= 25/4
= 6 1/4 hours or 6 hours 15 minutes
Note that 60 minutes = 1 hour
1/4 hour = 1/4 × 60 = 15 minutes
Find the stact value of cos(75')
Answer:
0.2588
Step-by-step explanation:
simple answer,
Answer:
0.258819045102520762348898837624048328349...
Step-by-step explanation:
See also attachment
\( (\sqrt{3} - 1) \div 2 \sqrt{2} \)
Quick can anyone help me please, only the ones who know what they are saying lol!!!!!!!!!!!!!!!! This is literally attempt #7 of trying to get this question answered
Determine the value of x. ( no links as answers)
This is a 45°-45°-90° triangle, in which the sides occur in a ratio of 1 to 1 to √2. So x = √2.
If you didn't already know that, you can trigonometry. By definition of cosine,
cos(45°) = 1/x
Then
x = 1/cos(45°) = 1/(1/√2)) = √2
you want to estimate the proportion of students at your university in favor of a longer spring break. changing the confidence level from 95% to 90% will decrease the needed sample size if the margin of error . please choose the correct answer from the following choices, and then select the submit answer button. answer choices
The needed sample size Smaller if the margin of error .
Given,
In the question:
This question in the form of: Fill in the blanks.
So, You want to estimate the proportion of students at your university in favor of a longer spring break. changing the confidence level from 95% to 90% will decrease the needed sample size_____ if the margin of error.
Hence, The answer is smaller the margin of error.
Let's Know:
What is Confidence level?
The confidence level is the percentage of times you expect to get close to the same estimate if you run your experiment again or resample the population in the same way. The confidence interval consists of the upper and lower bounds of the estimate you expect to find at a given level of confidence.
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If using the method of completing the square to solve the quadratic equation x^2+11x+39=0x 2 +11x+39=0, which number would have to be added to "complete the square"?
To complete the square for the quadratic equation x^2 + 11x + 39 = 0, the number 30 needs to be added.
To complete the square for the quadratic equation x^2 + 11x + 39 = 0, we want to rewrite it in the form (x + p)^2 + q = 0, where p and q are constants. To find p, we take half of the coefficient of x and square it. In this case, half of 11 is 5.5, and squaring it gives us 30.
Therefore, we add 30 to both sides of the equation: x^2 + 11x + 39 + 30 = 0 + 30. This allows us to rewrite the equation as (x + 5.5)^2 - 30 + 39 + 30 = 0, which simplifies to (x + 5.5)^2 + 9 = 0.
Now the equation is in the completed square form.
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If the allele frequency of the dominant allele is 0.4, what value is used for the term p^2 in the equation p^2+ 2pq + q^2 = 1?
The value is used for the term p^2 in the equation p^2+ 2pq + q^2 = 1 is 0.16.
According to the statement
we have given that the allele frequency of the dominant allele is 0.4, and we have to find that the value of p^2 in the equation p^2+ 2pq + q^2 = 1.
So, For this purpose, we know that the
The allele frequency represents the incidence of a gene variant in a population. Alleles are variant forms of a gene that are located at the same position, or genetic locus, on a chromosome.
And here
allele frequency is the 0.4 and represent the value of P.
So, The value of p is 0.4 and the
Then p^2 = (0.4)^2
so, the value becomes
p^2 = (0.4)^2
p^2 = 0.16.
So, The value is used for the term p^2 in the equation p^2+ 2pq + q^2 = 1 is 0.16.
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how many different ways are there for 10 women and 6 men to stand in a line so that no two men stand next to each other? hint: first position the women and then consider possible positions for the men.
As per the combination method, the number of ways for 10 women and 6 men to stand in the line is 1,207,084,032,000
Combination method:
In statistics, combination method refers the method of selection of r items from a set of n items where the order of selection does not matter
Given,
Here we need to find how many different ways are there for 10 women and 6 men to stand in a line so that no two men stand next to each other.
Here we know that, first consider the positions of the women, then the positions of the men
Then the possible ways are there to arrange ten women in a row is
=> 10!=3628800.
For the given condition is no two men stand next to each other.
Therefore, we need to find how many ways we can arrange 6 men in the 11 possible places
=> 11P6 = 11×10×9×8×7×6 = 332640.
Therefore, the resulting number is
=> 3628800 × 332640 = 1,207,084,032,000
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Joey measured the desk and got 60 cm. The actual measurement of the desk was 58 cm. Which expression will give me the percent error of Joey's measurement?
Answer:
what expression?
what is the value of x?
Answer:
x=40
Step-by-step explanation:
alternate angles are equal so the one of the triangles angles r 50 then 50 plus 90, in a right angled triangle, adds to 140
180 minus 140 is 40
write a rule for the nth term of geometric sequence a1= 3 and r= 1/2
The formula for the n-th term is:
aₙ = 3*(1/2)⁽ⁿ⁻¹⁾
How to find the rule for the n-th term?For a geometric sequence where the first term is a₁ and the common ratio is r, the formula for the n-th term is:
aₙ = a₁*(r)⁽ⁿ⁻¹⁾
Here we know that the first term is a₁ = 3 and the common ratio is r = 1/2.
Then the formula for the n-th term of the sequence is:
aₙ = 3*(1/2)⁽ⁿ⁻¹⁾
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Vic is standing on the ground at a point directly south of the base of the CN Tower and can see the top when looking at an angle of elevation of 61°. Dan is standing on the ground at a point directly west of the base of the tower and must look up at an angle of elevation of 72° in order to see the top. If the CN Tower is 553.3 m tall,how far apart are Vic and Dan to the nearest meter? Include a well-labeled diagram as part of your solution.
The angle of elevation of 61° and 72° with the height of the tower being 553.3 m. gives Vic's distance from Dan as approximately 356 meters.
How can the distance between Vic and Dan be calculated?Location of Vic relative to the tower = South
Vic's sight angle of elevation to the top of the tower = 61°
Dan's location with respect to the tower = West
Dan's angle of elevation in order to see the top of the tower = 72°
Height of the tower = 553.3m
\(tan( \theta) = \frac{opposite}{adjacent} \)
\(tan( 61 ^{ \circ}) = \frac{553.3}{ Vic' s\: distance \: to \: tower} \)
\(distance = \frac{553.3}{tan ( {61}^{ \circ} )} = 306.7\)
Vic's distance from the tower ≈ 306.7 mSimilarly, we have;
\( Dan's distance = \frac{553.3}{tan ( {72}^{ \circ} )} = 179.8\)
Dan's distance from the tower ≈ 179.8 mGiven that Vic and Dan are at right angles relative to the tower (Vic is on the south of the tower while Dan is at the west), by Pythagorean theorem, the distance between Vic and Dan d is found as follows;
d = √(306.7² + 179.8²) ≈ 356Therefore;
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Students took a poll that asked whether or not they watch television in the evenings and whether or not they have homework on those same evenings. The two-way table below shows the results of the poll.
Homework No Homework Total
TV 6 12 18
No TV 9 3 12
Total 15 15 30
Calculate the relative frequency of the data to determine which association the two-way table suggests.
A.
Students who watch television in the evenings tend to have homework.
B.
None of the associations listed are correct.
C.
Students who watch television in the evenings tend not to have any homework.
D.
Students who do not watch television in the evenings tend not to have any homework.
Answer:
Students who watch television in the evenings tend not to have any homework is the association suggested by the two-way table.
Step-by-step explanation:
Of the students who watch television, 33% have homework, and 67% do not have homework.
So, students who watch television in the evening tend not to have homework.
Of the students who do not watch television, 75% have homework, and 25% do not have homework.
So, students who do not watch television in the evenings tend to have homework.
I just had the question on Study Island!
Answer:
Students who watch television in the evenings tend not to have any homework.
Step-by-step explanation:
Have a good day :)
Solve the system by substitution.
- 2x – 10y = -2
-4y = x
Answer:
x = -4 and y = 1
Step-by-step explanation:
hope this helps please like and mark as brainliest
15
Sarah, Natasha and Richard share some sweets in the ratio 5:2:2. Sarah gets 21 more sweets
than Richard. How many sweets does Natasha get?
Answer:
natasha gets 14 sweets
Step-by-step explanation:
7x2=14
7x5=35
35-14=21
2ab-a to the second power+3a to the second power+ab please hurry!!!!!
Answer:
Step-by-step explanation:
first of all use ^ to indicate exponents
simplify
3ab-a^2=3a^2
subtract a^2 to 3a^2
3ab+2a^2
Answer:
-a(a-2b-3)
Step-by-step explanation:
Step 1: Pull out like-factors.
-a^2+ 2ab+3a
Step 2:
-a^+ -a + a + 2ab + 3a
Step 4:
-a(a-2b-3)
The Shoe Outlet bought boots for $60 and marks up the boots 55% on the selling price. What is the selling price of the boots?
Answer: The markup- 122.225%
Revenue/price- 133.33$
Gross profit- 73.33%
Step-by-step explanation:
The gross profit P is the difference between the cost to make a product C and the selling price or revenue R.
P = R - C
To calculate revenue R based on the cost C and the desired gross margin G, where G is in decimal form:
R = C / ( 1 - G)
The gross profit dollars P is the revenue dollars R from the sale times the gross margin G percentage, where G is in decimal form :
P = R * G
The markup percentage M, in decimal form, is gross profit P divided by cost C.
M = P/ C
M * 100 will change the decimal to a percentage.
The selling price of the boots is $93.
Given information:
The Shoe Outlet purchased the boots for $60 and increased their price by 55%
To calculate the selling price of the boots with a 55% mark-up, to add 55% of the original cost to the original cost.
Calculate the mark-up amount as follows:
Mark-up = 55% of $60
Mark-up = 0.55 * $60
Mark-up = $33
Add the mark-up to the original cost to find the selling price as follows:
Selling Price = Original Cost + Mark-up
Selling Price = $60 + $33
Selling Price = $93
So, the selling price of the boots is $93.
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the following percentages of chloride were found: 42.62%, 43.10%, 42.90%, and 42.75%. what is the average deviation from the mean
The average deviation from the mean is 0.19 that can be calculated from the mean.
An average is calculated for a set of numbers that are of the same value range.
Mean = (32.52+32.14+32.61+32.75)/4 = %32.50
Standard deviation =
|32.50-32.52| = 0.02
|32.50-32.14| = 0.36
|32.50-32.61| = 0.11
|32.50-32.75| = 0.25
(.02+.36+.11+.25)/4= 0.19
So the standard deviation is 0.19
Relative deviation = .19/32.50=0.0058 or %0.58
Yes, %32.14, because it deviates too far from the average.
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19 x 50= _____ fifties
Answer:
950
Step-by-step explanation:
19 ×5
then add the zero
(please help me out )In a recent year, 33.1% of all registered doctors were female. If there were 46,600 female registered doctors that year, what was the total number of
registered doctors?
Round your answer to the nearest whole number
Answer:
im not gonna lie cat i have no clue.
Step-by-step explanation:
Answer:
140785
Step-by-step explanation:
Question 11
The number of carbohydrates from 10 different tortilla sandwich wraps sold in a grocery store was collected.
Which graphical representation would be most appropriate for the data, and why?
Circle chart, because the data is categorical
Line plot, because there is a large set of data
Histogram, because you can see each individual data point
Stem-and-leaf plot, because you can see each individual data point
Question 12
The line plots represent data collected on the travel times to school from two groups of 15 students.
A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 10, 16, 20, and 28. There are two dots above 8 and 14. There are three dots above 18. There are four dots above 12. The graph is titled Bus 14 Travel Times.
A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 8, 9, 18, 20, and 22. There are two dots above 6, 10, 12, 14, and 16. The graph is titled Bus 18 Travel Times.
Compare the data and use the correct measure of center to determine which bus typically has the faster travel time. Round your answer to the nearest whole number, if necessary, and explain your answer.
Bus 14, with a median of 14
Bus 18, with a mean of 12
Bus 14, with a mean of 14
Bus 18, with a median of 12
Question 13
The line plot displays the number of roses purchased per day at a grocery store.
A horizontal line starting at 1 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 1 and 2. There are two dots above 8. There are three dots above 6, 7, and 9.
Which of the following is the best measure of variability for the data, and what is its value?
The range is the best measure of variability, and it equals 8.
The range is the best measure of variability, and it equals 2.5.
The IQR is the best measure of variability, and it equals 8.
The IQR is the best measure of variability, and it equals 2.5.
Question 14
Chipwich Summer Camp surveyed 100 campers to determine which lake activity was their favorite. The results are given in the table.
Lake Activity Number of Campers
Kayaking 15
Wakeboarding 11
Windsurfing 7
Waterskiing 13
Paddleboarding 54
If a circle graph was constructed from the results, which lake activity has a central angle of 39.6°?
Kayaking
Wakeboarding
Waterskiing
Paddleboarding
The lake activity with a central angle of \(39.6^\circ\) is Wakeboarding.
What is the central angle?11. the number of tortilla sandwich wraps falling into each interval can be represented by the height or area of the bars. This allows for an easy visualization of the distribution of the data.
12. To determine which bus typically has the faster travel time, we need to compare the measures of center for each data set. Since there are outliers in both data sets, the median would be a more appropriate measure of center than the mean.
For Bus 14, the median is (10 + 12)/2 = 11.
For Bus 18, the median is (10 + 14)/2 = 12.
Therefore, Bus 18 typically has the faster travel time, with a median of 12 minutes.
13. The IQR (interquartile range) is the best measure of variability for the data because it is less sensitive to outliers than the range, and it gives us an idea of how spread out the middle 50% of the data is.
To find Q1, we need to find the median of the lower half of the data: (1+2)/2 = 1.5.
To find Q3, we need to find the median of the upper half of the data: (8+8+8)/3 = 8.
Therefore, the IQR = Q3 - Q1 = 8 - 1.5 = 6.5.
14. To determine the central angle of each lake activity, we need to calculate the percentage of campers who chose each activity and then multiply that percentage by 360 (the total degrees in a circle).
The percentage of campers who chose Kayaking is 15%, so the central angle would be 0.15 x 360 = 54°.
The percentage of campers who chose Wakeboarding is 11%, so the central angle would be 0.11 x 360 = 39.6°.
The percentage of campers who chose Windsurfing is 7%, so the central angle would be 0.07 x 360 = 25.2°.
The percentage of campers who chose Waterskiing is 13%, so the central angle would be 0.13 x 360 = 46.8°.
The percentage of campers who chose Paddleboarding is 54%, so the central angle would be \(0.54 x 360 = 194.4^\circ.\)
Therefore, The lake activity with a central angle of \(39.6^\circ\) is Wakeboarding.
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Experimental data for the motion of a particle along a straight line yield measured values of the velocity v for various displacements S. A smooth curve is drawn through the points as shown in the graph.
Determine the acceleration of the particle when S = 40 m.
The acceleration of the particle at S = 40 m is approximately 2\(m/s^2\)
To determine the acceleration of a particle when its displacement is 40 m using experimental data?To determine the acceleration of the particle when S = 40 m, we need to use the information given in the graph. The graph shows the velocity of the particle as a function of its displacement, S. Recall that acceleration is the rate of change of velocity with respect to time.
We can estimate the acceleration at S = 40 m by finding the slope of the tangent line to the velocity curve at that point.
One way to estimate the slope of the tangent line is to draw a line that is as close as possible to the curve at the point S = 40 m, and then find the slope of that line. We can use a ruler to draw a tangent line that intersects the curve at S = 40 m, as shown in the graph.
We then measure the displacement and velocity of two points on the tangent line, one on either side of S = 40 m. For example, we might choose the points S = 35 m and S = 45 m, and find their corresponding velocities, which are approximately v = 25 m/s and v = 45 m/s, respectively.
The slope of the tangent line is then given by the change in velocity over the change in displacement:
acceleration = (v2 - v1) / (S2 - S1)
Substituting the values we found, we get:
acceleration = (45 m/s - 25 m/s) / (45 m - 35 m) = 2\(m/s^2\)
Therefore, the acceleration of the particle at S = 40 m is approximately 2\(m/s^2\).
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solve the following equation: (Find x)
a) (x-5)²+(2x-10)(x+3)-x²+25
Answer:
hence the value of x is either 5 or 2
x=5 or x=2
Solve the inequality for u.
7u - 32< - 3(6-3u)
Simplify your answer as much as possible.
Answer:
u > - 7
Step-by-step explanation:
7u - 32 < - 3(6-3u)
7u - 32 < - 18 + 9u
18-32 < - 7u + 9u
-14 < 2u
2u > - 14
u > - 7
Answer:The solution is in the attached file below
Step-by-step explanation:
How many minutes are there in a day?
Answer:
1440 min
24 hours × 60 min
Tammy earns 51 dollars per week working part time at a book store. She makes one dollar more for each book that she sells. The amount, A(in dollars), that Tammy earns in a week If she sells b books is given by the following function A(b)= 51+bHow much does Tammy earn in a week if she sells books?
The question is in the picture!
Answer:
A)
Step-by-step explanation:
negative number must be placed in parenthesis to avoid confusion.
W^2 - v + 1 Is represented as (-2)^2 - (-8) + 1
Solve the system by graphing.
2x+y = -2
3x-y = -8
Use the graphing tool to graph the system.
Click to
enlarge
graph
Answer:
Step-by-step explanation:
x= -2
y=2
Answer need ASAP
Add -3 1/6 + 5 3/4 and write it as a reduced mixed number
-3 1/6 + 5 3/4 = ?
Answer: 2 5/6 I think.
Wait no. I just did the math and it would be 2 1/2
Can someone pls help me ASAP!
Answer:
what type of math is it?
Step-by-step explanation:
Answer:
y=x-2
Step-by-step explanation:
the equation for slope intercept is y=mx+b, where m is the slope and b is the y intercept. The y intercept is -2, (where the line comes in contact with the x axis) and the slope is determined from the equation y2-y1/x2-x1 (rise over run) With this, we can see the slope is 1. hope this helps
The town of Todsham currently has a population of 300,000.
Each year, the population of Todsham will reduce by 5%.
How many fewer people will live in Todsham in 6 years compared with now?
Give your answer to 3 s.f.
PLEASEEEE HELLPPP BEGG!!!
In 6 years, there will be 90,000 fewer people living in Todsham compared with now.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given that town of Todsham currently has a population of 300,000.
Each year, the population of Todsham will reduce by 5%.
We need to find the number of people will live in Todsham in 6 years compared with now
The population reduction in one year will be 5% of 300,000, which is:
300,000 ×0.05 = 15,000
Now in 6 years, the population reduction
15,000×6 = 90,000 people.
Therefore, in 6 years, there will be 90,000 fewer people living in Todsham compared with now.
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Respond within parts I-iv. The GTIN number for Code Complete by Steve McConnell is 978-0-7356-1967-8. Give 3 examples of errors from the reading that could happen to the 12 digits 978073561967 that would not be detected because the checksum would still be 8 ? Below are steps for you to work through to find a way of doing this. Be clear and show your process at each phase below within this template for full credit. i. Consider how the checksum is calculated (5pts) ii. Review and list out common and less common potential errors (5pts) iii. Find a case that goes undetected (5pts) iv. Find and test more examples where at least one is a different type of error (Please specify the type of error) (5pts) v. Write out your solution and e.Plain your process. Reflect on how well this system works for common and less common errors.
Three examples of errors that would not be detected by the checksum of the GTIN number 978-0-7356-1967-8 are:
1. Transposing two adjacent digits: 978-0-7356-1976-8.
2. Substituting one digit with another: 978-0-7356-1867-8.
3. Swapping two non-adjacent digits: 978-0-7536-1967-8.
The checksum in a GTIN number is calculated using a formula that assigns weights to each digit and performs a modulo 10 operation. In this case, the formula used is called the GTIN-13 algorithm, which calculates the 13th digit (checksum) based on the first 12 digits. The checksum is designed to detect common errors, such as transpositions, substitutions, and swaps, by ensuring that the resulting sum is divisible by 10.
However, there are certain errors that can occur and still result in a valid checksum. For example, transposing two adjacent digits (e.g., switching 6 and 7 in 1967) would not be detected because the individual digit weights cancel each other out. Similarly, substituting one digit with another (e.g., replacing 9 with 8) may also go undetected because the sum remains the same. Additionally, swapping two non-adjacent digits (e.g., exchanging the positions of 5 and 7) does not affect the checksum either.
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