Solving for x gives the axis of symmetry of quadratic equation, where the quadratic equation is given as: y = ax² + bx + c.
How is this determined?
The vertical line that passes through a parabola's vertex is the axis of symmetry, making the parabola's left and right sides symmetric. This line divides the graph of a quadratic equation into two mirror representations in order to make things simpler.
The line on the graph that separates the graph into two symmetrical sides and runs through the vertex of the parabola is known as the axis of symmetry of the parabola.
It is written as:
x = -b /2a.
Hence, for x = -b /2a. Solving for x gives the axis of symmetry of quadratic equation, where the quadratic equation is given as: y = ax² + bx + c.
Learn more about axis of symmetry here:
https://brainly.com/question/22495480
#SPJ4
The members of a cooking club are making cakes, which they will sell at a street fair for $8 apiece. It cost $36 for a booth at the fair, and the ingredients for each cake cost $6. At some point, the club members will sell enough cakes so that their sales cover their expenditures. How much will the sales and expenditures be? How many cakes will they have sold? PLEASE ANSWER AS QUICK AS POSSIBLE!!
They need to sell 18 pieces to cover their expenditures (have a profit of zero).
What is Subtraction?Subtraction is the process of taking away a number from another. It is a primary arithmetic operation that is denoted by a subtraction symbol (-) and is the method of calculating the difference between two numbers.
here, we have,
How many cakes will they have sold?
We know that the costs are:
$36 for the booth at the fair.
$6 for each piece of cake they sell.
And the revenue is:
$8 for each piece of cake.
So, the profit (the difference between the revenue and the cost) for selling x pieces is:
p(x) = $8*x - $6*x - $36
p(x) = $2*x - $36
We want to find the value of x such that p(x) = 0, then:
0 = $2*x - $36
x = $36/$2
= 18
They need to sell 18 pieces to cover their expenditures (have a profit of zero).
If you want to learn more about profit:
brainly.com/question/23103804
#SPJ1
whats this i need help
The minimum number of bins that she will need to safely stock the extra clothing will be 24
How to calculate the word problemA word problem in mathematics simply refers to a question that is written as a sentence or in some cases more than one sentence which requires an individual to use his or her mathematics knowledge to solve the real life scenario given.
The minimum number of bins that she will need to safely stock the extra clothing will be:
= 350 / 15
= 24 rounded up.
Learn more about word problem on:
brainly.com/question/21405634
#SPJ1
A line passes through the point (5,-5) and has a slope of -2
i am suppose to write an equation, please tell me the steps
The equation of a parabola with center (h, k) and focus (h + p, k) can be written in standard form as:
What exactly is a parabola?
Any point on a parabola is at an equal distance from both the focus, a fixed point, and the directrix, a fixed straight line. A parabola is a U-shaped plane curve. The topic of conic sections includes parabola, and all of its principles are discussed here.
(x - h)² + (y - k)² = 4p² (y - k)
Plugging in the values from the given information:
h = 6, k = -4, p = 2√6
The equation is:
(x - 6)² + (y + 4)² = 4(2√6)² (y + 4)
Expanding and simplifying:
(x - 6)² + (y + 4)² = 144(y + 4)
Expanding the right side further:
(x - 6)² + (y + 4)² = 144y + 576
Rearranging the equation:
(x - 6)² = 144y + 576 - (y + 4)²
Distributing and completing the square on the right side:
(x - 6)² = 144y + 576 - y² - 8y - 16
(x - 6)² = 144y - y² - 8y + 560
Expanding the square on the left side:
x² - 12x + 36 + y² - 144y + 8y² = 560
Combining like terms:
x² - 12x + y² - 156y + 8y² + 36 = 560
Rearranging to standard form:
8y² - 156y + x² - 12x + 36 = 560
Subtracting 560 from both sides:
8y² - 156y + x² - 12x - 524 = 0
Learn more about parabola
https://brainly.com/question/64712
#SPJ1
Darvin Furniture marks up the price of a dining room set 60%. What will be the selling price of a dinning room set that Darvin buys for $1400?
Answer: $2240
Step-by-step explanation:
$1400 x 1.60 = $2240
A survey was conducted among 200 students of age groups 7–12 years and 13–18 years to find their favorite movie genre. The students had to select any one genre from comedy, action, or adventure. Out of the 100 students in the age group 7–12 years who participated in the survey, 55 liked action or adventure movies. The total number of students of both age groups who liked comedy was 98. Using a two-way table, compute the total number of students in the age group 13–18 years who liked action or adventure movies.
Answer:the answer is 47
Step-by-step explanation:
100 - 55 = 45, which represents the 7-12 year olds who chose comedy
98 - 45 = 53, people in 13-18 who chose comedy
100 - 53 = 47 which represents the people of 13-18 who chose action and adventure
HOPE THIS HELPS!!!!
Troy and Lisa were shopping for school supplies. Each purchased different quantities of the same notebook and
thumb drive. Troy bought 5 notebooks and 15 thumb drives for $395. Lisa bought 12 notebooks and 8 thumb
drives for $248. Find the cost of each notebook and each thumb drive.
The cost of each notebook =
The cost of each thumb drive =
Answer:
notebook: $4thumb drive: $25Step-by-step explanation:
You want the cost of a notebook and a thumb drive when 5 notebooks and 15 thumb drives costs $395, while 12 notebooks and 8 thumb drives cost $248.
EquationsThe two purchases can be described by the equations ...
5n +15d = 395 ⇒ n +3d = 7912n +8d = 248 ⇒ 3n +2d = 62SolutionSubtracting the second equation from 3 times the first, we have ...
3(n +3d) -(3n +2d) = 3(79) -(62)
7d = 175
d = 25 . . . . . . . divide by 7
Substituting into the first equation gives ...
n +3(25) =79
n = 4 . . . . . . . subtract 75
The cost of each notebook is $4; the cost of each thumb drive is $25.
__
Additional comment
It is often easier to solve a system of equations when they are written in standard form. Here, we made the coefficients mutually prime by dividing each equation by the greatest common factor. For the first equation, we divided by 5; for the second equation, we divided by 4. This is especially useful if one of the coefficients ends up being 1.
The figure below was made with a scale of 1 unit =6cm.
Draw the figure with a new scale of 1 unit =2cm.
You can place your figure anywhere on the grid on the right.
The new diagram with a scale factor of 1 unit = 2cm will look the same
as each new grid now represents 2 cm.
What is a scale factor?The scale factor defines a variable in a ratio of two different measurements.
Sometimes drawings of large models are represented in a scale factor of a smaller unit.
Given, A drawing represented by a scale factor of 1 unit = 6cm,
Where every grid unit represents 6 cm.
The new drawing model will look exactly the same as now each grid unit represents 2cm feet.
learn more about scale factors here :
brainly.com/question/29047298
#SPJ1
Determine the simple interest. Assume 360 days in a year.
p=$39, r=0.0625% per day, t=180 days.
The preceding statement suggests that simple interest equals $4.38
Simple interest: What is it?Simple annual interest of borrowing-related interest that is computed using only the initial principal and a constant interest rate. Compounding, in which borrowers wind up paying tax on principle plus interest that increases over a few of payment periods, is not a part of it. The original is multiplied by time, rate of return, and time period to determine simple interest.
Due to it,
P = $39
R = 0.0625%
T = 180 days
Now, Simple Interest = P*R*T/100
Simple Interest = 39 * 0.0625 * 180/100
Simple Interest = 2.92
Therefore, Simple Interest is $4.38
To know more about Simple Interest visit:
https://brainly.com/question/25793394
#SPJ1
The 2000 CDC growth charts were developed using a reference population of infants. A pediatrician looks up one of the charts and finds that the 5th percentile for weights of baby boys at 10-1/2 months is 16.7 pounds. This means that ______of the 10-1/2-month-old baby boys in the reference population weigh 16.7 pounds or less, and ______of these baby boys weigh 16.7 pounds or more.
This means that 5% of the 10-1/2-month-old baby boys in the reference population weigh 16.7 pounds or less, and 95% of these baby boys weigh 16.7 pounds or more.
Percentile WeightThe determination is based on the definition of a percentile. A percentile is a value below which a certain percentage of the data falls. So, in this case, if a weight of 16.7 pounds is at the 5th percentile for 10-1/2-month-old baby boys, then 5% of the baby boys in the reference population have a weight of 16.7 pounds or less. This also means that the remaining 95% of the baby boys in the reference population have a weight of more than 16.7 pounds.
The calculation of percentiles is based on the ranking of the data set. The data is first sorted in ascending order and then divided into 100 equal parts, with each part representing a percentile. The value at each percentile is the value below which a certain percentage of the data falls.
Learn more about Percentile Weight here:
https://brainly.com/question/28544091
#SPJ4
[tex]30*\sqrt{5} ^{2} +13*\sqrt{5}-6[/tex]
1/9 equals 5/n
Pls help
Answer:
its 5/45
Step-by-step explanation:
B Current Attempt in Progress Journalize the following business transactions in general journal form. Identify each transacti 1. 2. 4. 5. 6. 7. The company issues stock in exchange for $40,000 cash. Purchased $400 of supplies on credit. Purchased equipment for $8,000, paying $2,000 in cash and signed a 30-day, $6,000 Real estate commissions billed to clients amount to $4,000. Paid $700 in cash for the current month's rent. Paid $200 cash on account for supplies purchased in transaction 2. Received a bill for $600 for advertising for the current month. 8. Paid $2,200 cash for office salaries and wages. Type here to search how to fill out the table
Journalizing the business transactions in the general journal form is as follows:
General JournalAccount Titles Debit Credit
1. Cash $40,000
Common Stock $40,000
2. Supplies $400
Accounts Payable $400
3. Equipment $8,000
Cash $2,000
Note Payable $6,000
4. Accounts Receivable $4,000
Commission Revenue $4,000
5. Rent Expense $700
Cash $700
6. Accounts Payable $200
Cash $200
7. Advertising Expense $600
Accounts Payable $600
8. Salaries and Wages $2,200
Cash $2,200
What is the general journal?The general journal is the initial accounting record of a business transaction.
In the general journal, transactions are recorded chronologically, according to the date they occur.
The general journal forms the basis for posting transactions to the general ledger.
Transaction Analysis:1. Cash $40,000 Common Stock $40,000
2. Supplies $400 Accounts Payable $400
3. Equipment $8,000 Cash $2,000 Note Payable $6,000
4. Accounts Receivable $4,000 Commission Revenue $4,000
5. Rent Expense $700 Cash $700
6. Accounts Payable $200 Cash $200
7. Advertising Expense $600 Accounts Payable $600
8. Salaries and Wages $2,200 Cash $2,200
Learn more about journalizing transactions at https://brainly.com/question/17201601
#SPJ1
Bobby purchased land for $6500 in 1989. The value of the land depreciated by 1.6% per year, use an exponential function to find the approximate value of the land in 1999.
Answer: The exponential function to model the value of the land over time t (in years) is given by:
V(t) = 6500 * e^(-0.016t)
So, to find the value of the land in 1999 (10 years after 1989), we can plug in t = 10 into the equation:
V(10) = 6500 * e^(-0.016 * 10) = 6500 * e^(-0.16) = 6500 * 0.8499 = 5524.935
Therefore, the approximate value of the land in 1999 was approximately $5524.935.
Someone please help I’ll give points
Answer:
Step-by-step explanation:
40 or less for males 35 or less for females
what is 5 divided by 1/6
Answer:
30
Step-by-step explanation:
to divide by a fraction, multiply by the reciprocal of it
the reciprocal of 1/6 is 6
5*6=30
find x please will give brainliest!
The value of the angle x is 120 degrees
How to determine the value of the variableIt is important to note the following;
The sum of angles in a triangle is 180 degreesAngles on a straight line is 180 degreesAlternate angles are said to be equal or congruentFrom the information given in the diagram, we have that;
The variable x is laying on a straight line with one end of the triangle.
Also, angle 60 is alternate to the same angle on a straight line with x
So, we have that;
60 degrees + x degrees = 180 degrees
Solve mathematically as;
60 + x = 180
collect like terms
x = 180 - 60
Subtract the values
x = 120 degrees
Hence, the value is 120 degrees
Learn about alternate angles on:
https://brainly.com/question/24839702
#SPJ1
TIME REMAINING
53:26
To be able to go on the band trip, four band members each get a part-time job. Each person has 5 weeks in which to save his or her money. Analyze the four individual plans below and decide which of the four people will reach his or her goal of saving $285?
Member A: Works 8 hours per week at $6.15 per hour
Member B: Works 10 hours per week at $5.85 per hour
Member C: Works 7 hours per week at $7.25 per hour
Member D: Works 9 hours per week at $6.35 per hour
The solution is, Only member B and D will reach their goal.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
Given;
Amount to be saved = $285
Total time to save money = 5 weeks
Now,
For member A:
Working hours = 8 per week
per hour earnings = $6.15
Therefore,
The total amount collected
= working hours per week × Total weeks × Earning per hours
= 8 × 5 × 6.15
= $246
For member B:
Working hours = 10 per week
per hour earnings = $5.85
Therefore,
The total amount collected
= working hours per week × Total weeks × Earning per hours
= 10 × 5 × 5.85
= $292.5
For member C:
Working hours = 7 per week
per hour earnings = $7.25
Therefore,
The total amount collected
= working hours per week × Total weeks × Earning per hours
= 7 × 5 × $7.25
= $253.75
For member D:
Working hours = 9 per week
per hour earnings = $6.35
Therefore,
The total amount collected
= working hours per week × Total weeks × Earning per hours
= 9 × 5 × $6.35
= $285.75
Since, the amount earned by member B and D is greater than the goal amount and the amount earned by member A and C is less than the goal amount
therefore,
Only member B and D will reach their goal.
To learn more on multiplication click:
brainly.com/question/5992872
#SPJ1
What is the difference of 85.23 and 2.676
Answer:
82.554
Step-by-step explanation:
take 85.23 subtract from 2.676;
= 85.23-2.676
=82.554
Carpet City charges $5 per square foot for a type of carpet. They charge an additional $95 for installation. Westside Carpet also charges an installation fee and a constant rate for the same carpet. The table shows the cost including installation for various amounts of the carpet at Westside Carpet. Which store charges more per square foot for the carpet?
Answer:
Step-by-step explanation:
Answer is A
3250 is the total cost
$95 is the cost of installation
Cost for 642 square feet
=3250 - 95=3155
Cost of installation per square feet = 3155/642=4.91
Cost of Carpet City per square feet = $5
Cost of Westside carpet per square feet = $4.91
So Carpet City charges more
given target's financial statements, calculate the common size value for licensed content. (enter percentages as decimals and round to 4 decimals)
The common size value for licensed content is 0.0848.
To calculate the common size value for licensed content, first, we need to find the total revenue of the company. We can get this information from the company's financial statements.
Let's assume the total revenue of the company is $100,000.
Next, we need to find the amount of money spent on licensed content. Let's assume that the amount spent on licensed content is $8,500.
Now, to calculate the common size value for licensed content, we need to divide the amount spent on licensed content by the total revenue, and multiply the result by 100.
So, the common size value for licensed content is:
Common size value = (8,500/100,000) x 100 = 0.0848
Therefore, the common size value for licensed content is 0.0848 (rounded to 4 decimals).
learn more about values here
https://brainly.com/question/14962478
#SPJ4
10.
Which graph shows the following system of equations and its solution?
ows the following system of equations and its solution?
The graph that shows the following system of equations and its solution is graph number C
How to determine the graph?A graph is the graphical representation of equations on a graph sheet
The given equations are
-4x-3y=4
4x-y=-4 Solving the equations
In equation 1
When x = 0
-3y = 4
y=-4/3 (0, -4/3)
When y = 0
-4x = 4
x= -1 (-1, 0)
In equation 2 when x = 0
-y = -y = 4 (0, 4)
When y = 0
4x=-4 x=-1 (-1, 0)
When these coordinates are used to plot the graph, graph number is is obtained.
Learn more about graphs on https://brainly.com/question/21981889
#SPJ1
Find the Pearson coeffiecent of skewness formula and use the SKEW function in Excel to measure the skewness of the following data set: 418, 184, 264, 347, 485, 382
Round all calcuated values to the hundreths.
The value that tells us the skewness of the data that we have here is -0.4273
How to solve for the skewnessThe skewness of the data distribution is the statistic that is used to tell us of the level of asymmetry that is in the data set.
In order to solve for the skewness, we would have to use Microsoft excel
All of values would be entered into the formula
SKEW (418, 184, 264, 347, 485, 382)
The output that it would display can be rounded to -0.427
Read more on skewness here:https://brainly.com/question/24521376
#SPJ1
Given P(x)= x^3 + 3x^2 + x + 3. Write P in factored form (as a product of linear factors). Be sure to write the full equation, including P(x)=.
The factored form of the equation P(x) = x³ + 3x² + x + 3 is P(x) = (x+1)(x² + 2x + 3).
An equation is a mathematical expression that shows that two things are equal.
One common method for finding the factored form of a polynomial equation is to use the Rational Root Theorem, which states that if a rational number a/b is a root of the polynomial equation, then (x-a/b) is a factor of the polynomial equation.
We can then use long division to divide the polynomial by the linear factor, repeat the process with the remaining polynomial, and continue this process until the polynomial is fully factored.
The polynomial equation
=> P(x) = x³ + 3x² + x + 3
can be factored as
=> (x+1)(x² + 2x + 3).
The equation P(x) = (x+1)(x² + 2x + 3) is now written as a product of two linear factors, (x + 1) and (x² + 2x + 3).
To know more about equation here.
https://brainly.com/question/10413253
#SPJ4
Write an equation to represent each function. Input (x) Output (y) 1 2 6 12 3 18 24 5 30
One possible equation that represents the function is:
y = 2x, which can also be written as y = 2 * x.
Here's how the function values correspond to the equation:
When x = 1, y = 2 * 1 = 2
When x = 2, y = 2 * 2 = 4
When x = 3, y = 2 * 3 = 6
When x = 5, y = 2 * 5 = 10
And so on.
Note that there are other equations that could also represent the same function, but y = 2x is one possible option.
Answer:
is there a picture I can see
The number of chirps that crickets make is closely related to the temperature in after environment. When the temperatures between 12 and 38°C ,we can tell the temperature by counting the number of chirps.
Answer:
65
Step-by-step explanation:
cuz I said so
Sampling distributions
Answer:
Distrubute it equally
Step-by-step explanation:
Answer:
Sampling distributions are a fundamental concept in statistics. They describe the distribution of sample statistics, such as means and proportions, over many samples of the same size taken from the same population. Sampling distributions provide essential information about the variability and stability of these sample statistics and help us make inferences about the population parameters.
The central limit theorem states that, as the sample size increases, the distribution of the sample means approaches a normal distribution, regardless of the shape of the population distribution. We can use regular distribution models to predict the sample mean and estimate the population means with confidence intervals.
In addition to the central limit theorem, other essential concepts in sampling distributions include the law of large numbers, which states that the average of the sample means approaches the population means as the sample size increases, and the standard error of the mean, which is a measure of the variability of the sample mean.
Knowing about sampling distributions is essential for understanding statistical inference and for making informed decisions about populations based on sample data. They provide a framework for evaluating the reliability and accuracy of sample statistics, and they play a crucial role in hypothesis testing, estimation, and other data analysis techniques.
PLEASE HELP LIMITED TIME! VERY URGENT.
Look at the added image.
Assign the following correlation coefficients, r-values, to the appropriate graph:
-0.1,
-0.75,
0.88,
0.43
The correlation coefficient, r, for each of the graph is:
Graph 1: 0.88.
Graph 2: 0.43
Graph 3: -0.75
Graph 4: -0.1.
How to Estimate the Correlation Coefficient, R-value, from a Scatter Plot?You can visually examine the graph to determine the direction and strength of the relationship between the two variables.
If the points tend to form a straight line sloping upwards to the right, the correlation is positive, indicating that the two variables are positively related (as one variable increases, so does the other). If the points tend to form a straight line sloping downwards to the right, the correlation is negative, indicating that the two variables are negatively related (as one variable increases, the other decreases).
The strength of the correlation is determined by how tightly the points are clustered around the line. If the points are tightly clustered around the line, the correlation is strong. If the points are scattered more widely, the correlation is weak.
Once you have determined the direction and strength of the relationship, you can estimate the correlation coefficient using a rough approximation. For example, if the correlation is positive and the points are tightly clustered around the line, the correlation coefficient is likely to be close to +1. If the correlation is negative and the points are widely scattered, the correlation coefficient is likely to be close to -1. If there is no clear relationship, the correlation coefficient is likely to be close to 0.
Therefore:
Graph 1 has an r-value of 0.88.
Graph 2 has an r-value of 0.43 because the points are moderately farther apart from each other and slopes upwards.
Graph 3's r-value would be -0.75 because the points are closer to each other and slopes downwards to the left.
Graph 4's r-value would be -0.1.
Learn more about the correlation coefficient on:
https://brainly.com/question/27842223
#SPJ1
–1/2 (12x – 2) = –6x – 1
The given function has no solution it will be false for all real values of x.
What is simplification?Simplifying procedures is one way to achieve uniformity in job efforts, expenses, and time. It reduces diversity and variation that is pointless, harmful, or unneeded. Parenthesis, exponents, multiplication, division, addition, and subtraction are all referred to as PEMDAS. The order of the letters in PEMDAS informs you what to calculate first, second, third, and so on, until the computation is finished, given two or more operations in a single statement.
Given a function –1/2 (12x – 2) = –6x – 1
Simplifying the given function using the rule of PEMDAS
=> –1/2 (12x – 2) = –6x – 1
multiply by -2 on both sides
=> 12x - 2 = 12x +2
==> 4 = 0
Therefore, the given function has no solution it will be false for all real values of x.
Learn more about Simplification here:
https://brainly.com/question/28996879
#SPJ1
Tessa did 3/5 of her homework problems on Saturday. On Sunday, she did 1/3 of what was left plus the last 4 problems. How many problems did Tessa do over the weekend?
The total problems assigned over the weekend are 15.
Let's assume the total number of problems assigned = x.
Given that problems solved on Saturday is 3/5 of her total questions. This is represented as:
(3/5)x
The remaining problems are:
1 - (3/5)x = (2/5)x
On, Sunday the problems solved are 1/3 of the remaining. This is represented as:
(1/3)*(2/5)x = (2/15)x
The remaining problems are:
(1 - 1/3)(2/5 x) = (2/3) * (2/5)x = 4/15x
Given that the final number of problems remaining are 4, that is:
(4/15)x = 4
x = 4 (15/4)
x = 15
Hence, the total problems assigned over the weekend are 15.
Learn more about fraction here:
brainly.com/question/10354322