Answer:
y=3x+10 is (0,10) and y=2x 9 is (0,0)
Step-by-step explanation:
is this the answer you were looking for
Answer
(x,y)= (-10, -20)
Step-by-step explanation:
As both equations have y separated, we can conclude they are equal. Hence,
\(2x=3x+10\\x=-10\\y= 2(-10)\\y=-20\)
Unit 3: Functions& Linear Equations Homework 1: Relations & Functions Name: Date: Bell: This is a 2-page document! Find the domain and range, then represent as a table, mapping, and graph. Domain Range 2. {(-3,-4), (-1, 2), (0,0), (-3, 5), (2, 4» Domain Range - Determine the domain and range of the following continuous graphs 3. 4. Domain = Range = 5. Domain Range 6. Domain - Domain - Range - Range = Gina Wlson (AlI Things Aigebral 2
The domain and range are the set of x and values of the function are in the table.
the function as a table,
Input (x) | Output (y)
-3 | -4
-1 | 2
0 | 0
-3 | 5
2 | 4
What is the domain and range?
The domain and range are fundamental concepts in mathematics that are used to describe the input and output values of a function or relation.
The domain of a function refers to the set of all possible input values, or x-values, for which the function is defined.
The range of a function refers to the set of all possible output values, or y-values.
To find the domain and range of functions and represent them in different formats.
To find the domain and range of a function:
The domain refers to the set of all possible input values (x-values) for the function.
The range refers to the set of all possible output values (y-values) for the function.
To represent the function as a table, you would list the input-output pairs. For example:
Input (x) | Output (y)
-3 | -4
-1 | 2
0 | 0
-3 | 5
2 | 4
To represent the function as a mapping, you would indicate the correspondence between the input and output values.
For example:
-3 -> -4
-1 -> 2
0 -> 0
-3 -> 5
2 -> 4
To represent the function as a graph, The x-values would be on the horizontal axis, and the y-values would be on the vertical axis.
The points (-3, -4), (-1, 2), (0, 0), (-3, 5), and (2, 4) would be plotted accordingly.
Hence, The domain and range are the set of x and values of the function are in the table.
the function as a table,
Input (x) | Output (y)
-3 | -4
-1 | 2
0 | 0
-3 | 5
2 | 4
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One morning, exactly at sunrise, a buddhist monk began to climb a tall mountain. A narrow path, no more than a foot or two wide, spiraled around the mountain to a glittering temple at the summit. The monk ascended at varying rates of speed, stopping many times along the way to rest and eat dried fruit he carried with him. He reached the temple shortly before sunset. After several days of fasting and meditation he began his journey back along the same path, starting at sunrise and again walking at variable speeds with many pauses along the way. His average speed descending was, of course, greater than his average climbing speed. Prove that there is a spot along the path that the monk will occupy on both trips at precisely the same time of day.
The existence of a spot along the path where the monk will occupy at precisely the same time of day during both the ascent and descent can be proven using the Intermediate Value Theorem.
The monk's journey involves ascending and descending along the same narrow path. Let's assume time is measured continuously. As the monk climbs the mountain, his speed varies, and he takes pauses along the way.
Similarly, during the descent, his speed also varies but is on average faster than his climbing speed. The key concept to consider is that the monk's position on the path is a continuous function of time.
Since time is continuous, and the monk's position changes continuously, the Intermediate Value Theorem guarantees that the monk's position will intersect at the same time of day during both the ascent and descent.
Therefore, there exists a spot along the path where the monk will be present at precisely the same time of day on both trips.
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Classify the following polynomials by the highest power of each of its terms. Combine any like terms first. -x^2+x-x^2+1,x^2+x+2x^3-x,4x+x+x-2,3x^2+4-3x^2-1
Polynomials are algebraic expressions consisting of terms that include real numbers, variables, and positive integer exponents. Each term in a polynomial has a variable raised to a non-negative integer power, and the coefficient of each term is a real number. Polynomials are classified by the degree of their highest power. If two or more terms in a polynomial have the same variable raised to the same power, they can be combined into a single term.
1. -x² + x - x² + 1
Combine like terms: -x² + x - x² + 1 = -2x² + x + 1
This polynomial has degree 2 because the highest power of the variable is 2.
2. x² + x + 2x³ - x
Rearrange terms: 2x³ + x² + x - x = 2x³ + x²
This polynomial has degree 3 because the highest power of the variable is 3.
3. 4x + x + x - 2
Combine like terms: 4x + x + x - 2 = 6x - 2
This polynomial has degree 1 because the highest power of the variable is 1.
4. 3x² + 4 - 3x² - 1
Combine like terms: 3x² - 3x² + 4 - 1 = 3
This polynomial has degree 0 because there is no variable term.
Therefore, the four given polynomials have degrees 2, 3, 1, and 0, respectively.
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You deposit $350 into a savings account which pays a simple interest rate of 2.5% per year. you make no withdrawals what amount will be in the account after 3 years
Answer:
376.25
Hope this helped ;)
suppose an = 2n2 n -4 .. find a closed formula for the sequence of differences by computing . simplify your answer as much as possible.
The closed formula for the sequence of differences is:
Δan = 3n
To find the sequence of differences for the given sequence, we subtract each term from the next term. So, the sequence of differences is:
2(2n + 1)
To find a closed formula for this sequence of differences, we can use the formula for the sum of the first n natural numbers:
sum = n(n+1)/2
Using this formula, we can write the sequence of differences as:
sum from i=1 to n of [2(2i + 1)]
= 2 sum from i=1 to n of [2i + 1]
= 2 [n(n+1) + n]
= 2n^2 + 4n
Therefore, the closed formula for the sequence of differences is 2n^2 + 4n.
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Given a function f (x) = 3x2 + 4, what is the average rate of change of f on the interval [2, 2 + h]?3h + 123h2 + 12h3h2 + 12h + 1616
We are given the following function:
\(f(x)=3x^2+4\)We are asked to determine the average rate of change on the interval [2, 2 + h]. To do that we will use the following formula:
\(r=\frac{f(b)-f(a)}{b-a}\)in the interval:
\(\lbrack a,b\rbrack\)Therefore, we need to evaluate the function at the points x = 2 and x = 2 + h. Evaluating in x = 2 we get:
\(f(2)=3(2)^2+4=16\)Now we evaluate at x = 2 + h:
\(f(2+h)=3(2+h)^2+4\)Now we solve the square:
\(f(2+h)=3(4+4h+h^2)+4\)Now we apply the distributive property:
\(f(2+h)=12+12h+3h^2+4=12h+3h^2+16\)Now we use the average rate of change formula:
\(r=\frac{f(2+h)-f(2)}{(2+h)-(2)}\)Substituting the values:
\(r=\frac{12h+3h^2+16-16}{h}\)Simplifying:
\(r=\frac{12h+3h^2}{h}\)Now we take common factor on the numerator:
\(r=\frac{h(12+3h)}{h}\)We can cancel out the "h":
\(r=12+3h\)Therefore, the average rate of change is 12 + 3h.
A jar contains 8 red counters and 21 blue counters. A counter is taken at random from the jar. what is the probity that it is.
A. red
B. blue
C. green
Since there are no green counters, the probability of selecting a green counter is always 0 in this context.
Given that the jar contains 8 red counters and 21 blue counters, we can determine the probabilities of selecting each color.
Total number of counters in the jar = 8 (red) + 21 (blue) = 29
(a) The probability of selecting a red counter:
Number of red counters / Total number of counters = 8 / 29
(b) The probability of selecting a blue counter:
Number of blue counters / Total number of counters = 21 / 29
(c) The probability of selecting a green counter:
There are no green counters in the jar, so the probability of selecting a green counter is 0.
Therefore, the probabilities are as follows:
A. The probability of selecting a red counter is 8/29.
B. The probability of selecting a blue counter is 21/29.
C. The probability of selecting a green counter is 0.
Please note that since there are no green counters, the probability of selecting a green counter is always 0 in this context.
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. Generally, which one of the following is the least appropriate measure of central tendency for a data set that contains outliers? a.mean b.median c.2ndquartile d.50thpercentile
The following is the least appropriate measure of central tendency for a data set that contains outliers is 2ndquartile.
A single number that seeks to characterise a set of data by pinpointing the centre position within that set of data is referred to as a measure of central tendency. As a result, measures of central location are occasionally used to refer to measures of central tendency. They also fit within the category of summary statistics. You are probably most familiar with the mean (sometimes known as the average), but there are additional central tendency measures, including the median and the mode.
The mean, median, and mode are all reliable indicators of central tendency, however depending on the situation, some indicators are more useful than others.
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Find the amount to which $500 will grow under each of these conditions: a. 16% compounded annually for 10 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ b. 16% compounded semiannually for 10 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ c. 16% compounded quarterly for 10 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ d. 16% compounded monthly for 10 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ e. 16% compounded daily for 10 years. Assume 365 -days in a year. Do not round intermediate calculations. Round your answer to the nearest cent. $ f
a. The amount to which $500 will grow when compounded annually at a rate of 16% for 10 years is approximately $1,734.41.
b. The amount to which $500 will grow when compounded semiannually at a rate of 16% for 10 years is approximately $1,786.76.
c. The amount to which $500 will grow when compounded quarterly at a rate of 16% for 10 years is approximately $1,815.51.
d. The amount to which $500 will grow when compounded monthly at a rate of 16% for 10 years is approximately $1,833.89.
e. The amount to which $500 will grow when compounded daily at a rate of 16% for 10 years (365 days in a year) is approximately $1,843.96.
a. The amount to which $500 will grow when compounded annually at a rate of 16% for 10 years is approximately $1,734.41.
To calculate this, we can use the compound interest formula:
A = P(1 + r/n)^(nt)
Where:
A = the final amount
P = the principal amount (initial investment)
r = the annual interest rate (as a decimal)
n = the number of times the interest is compounded per year
t = the number of years
In this case, P = $500, r = 0.16, n = 1, and t = 10.
Plugging these values into the formula, we get:
A = 500(1 + 0.16/1)^(1*10)
= 500(1 + 0.16)^10
≈ 1,734.41
Therefore, $500 will grow to approximately $1,734.41 when compounded annually at a rate of 16% for 10 years.
b. The amount to which $500 will grow when compounded semiannually at a rate of 16% for 10 years is approximately $1,786.76.
To calculate this, we can use the same compound interest formula, but with a different value for n. In this case, n = 2 because the interest is compounded twice a year.
A = 500(1 + 0.16/2)^(2*10)
≈ 1,786.76
Therefore, $500 will grow to approximately $1,786.76 when compounded semiannually at a rate of 16% for 10 years.
c. The amount to which $500 will grow when compounded quarterly at a rate of 16% for 10 years is approximately $1,815.51.
Using the compound interest formula with n = 4 (compounded quarterly):
A = 500(1 + 0.16/4)^(4*10)
≈ 1,815.51
Therefore, $500 will grow to approximately $1,815.51 when compounded quarterly at a rate of 16% for 10 years.
d. The amount to which $500 will grow when compounded monthly at a rate of 16% for 10 years is approximately $1,833.89.
Using the compound interest formula with n = 12 (compounded monthly):
A = 500(1 + 0.16/12)^(12*10)
≈ 1,833.89
Therefore, $500 will grow to approximately $1,833.89 when compounded monthly at a rate of 16% for 10 years.
e. The amount to which $500 will grow when compounded daily at a rate of 16% for 10 years (365 days in a year) is approximately $1,843.96.
Using the compound interest formula with n = 365 (compounded daily):
A = 500(1 + 0.16/365)^(365*10)
≈ 1,843.96
Therefore, $500 will grow to approximately $1,843.96 when compounded daily at a rate of 16% for 10 years.
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what is the the mode of April's temperatures?
A
B
C
D
Answer:
B: no mode
Explanation:
A mode is a number that occurs often in a set of data. Since all of April's temperatures are different, there is no mode.
Answer:
b because mode is the how many times a number pop up it has to be the same
Step-by-step explanation:
Thelma classifies the following system of equations.
Y= -1/3x + 3. Y=1/3x + 3
Select Correct or Not correct for each statement.
Correct
Not correct
Statement
The system is consistent because the slopes are the same.
The system is independent because the y-intercepts are different.
1b
Answer:
The selections are;
The system is inconsistent because the slopes are the same = Not correct
The system is independent because the y-intercept are different = Not correct
Step-by-step explanation:
An independent system of equations is a system that has only one solution, while an therefore, have different slope
An inconsistent has no solution, and therefore, have the same slope but different y-intercept
Therefore, we have;
The system is inconsistent because the slopes are the same = Not correct
The system is independent because the y-intercept are different = Not correct
In a factory, 5 machines can create 13,000 forks in 8 hours. How many forks can be made in 6 hours by 3 machines?
Answer:
13000 / 8 = 1625
1625 / 5 = 325
325 *3 *6 = 5850
Answer: 5850
Step By Step: First divide 13,000 by 8, giving you 1,625. Divide that by 5,
to get 325. So each machine makes 325 an hour. Multiply That by 3, giving you 975, multiply that by 6, giving you 5,850.
What is the value of x in the matrix equation below?
3
8
х
10
Х
-2
3
5
-1
6
-7 -4
0 -1
ОО
1
Answer:
The horizontal value in a pair of coordinates: how far along the point is. The X Coordinate is always written first in an ordered pair of coordinates (x,y), such as (12,5). In this example, the value "12" is the X Coordinate. Also called "Abscissa" See: Coordinates.
Step-by-step explanation:
The value of x in the matrix is 1.
Option D is the correct answer.
What is a matrix?Matrix is a form of writing items in rows and columns.
We have,
From the matrix addition, we can write as,
-2x + 3 = x
Now,
Combining the like terms.
-2x - x + 3 = 0
-3x = -3
Dividing 3 into both sides.
-x = -1
x = 1
Thus,
The value of x in the matrix is 1.
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y=2/3x+2. I need help
Answer:
Using the slope-intercept form, the slope is 23, but you will have to combine 2/3 and x. y= 2x/3+2
Step-by-step explanation:
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Catena's Marketing Company has the following adjusted trial balance at the end of the current year. Cash dividends of $660 were declared at the end of the year, and 500 additional shares of common stock ($0.10 par value per share) were issued at the end of the year for $3,240 in cash (for a total at the end of the year of 920 shares). These effects are included below: Catena's Marketing Company Adjusted Trial Balance End of the Current Year Cash Accounts receivable Interest receivable. Prepaid insurance Long-term notes receivable Equipment Accumulated depreciation Accounts payable Dividends payable Accrued expenses payable Income taxes payable. Unearned rent revenue Common Stock (920 shares) Additional paid-in capital Retained earnings Sales revenue Rent revenue Interest revenue Wages expense Depreciation expense Utilities expense Insurance expense Rent expense Income tax expense Total Debit $1,560 2,320 124 1,720 3,400 16,490 20,700 2,040 428 858 Credit X Answer is not complete. $3,240 2,640 660 CATENA'S MARKETING COMPANY 4,040 1,824 560 92 3,740 1,640 41,260 9,240 1,800 $60,680 $60,680 860 124 Prepare a multistep income statement for the current year. Note: Round your earnings per share to 2 decimal places.
The earnings per share for Catena's Marketing Company at the end of the current year is $7.32 per share.
To calculate the earnings per share for Catena's Marketing Company, we need to know the total number of shares outstanding at the end of the year. The problem states that 500 additional shares were issued at the end of the year, bringing the total to 930 shares.
To calculate the earnings per share, we divide the net income by the total number of shares outstanding. Using the given information, we get:
Earnings per share = Net income / Total shares outstanding
Earnings per share = $6,808 / 930
Earnings per share = $7.32 per share
This means that for each share of common stock outstanding, the company earned $7.32 in net income during the year. It's important to note that earnings per share is a widely used metric in evaluating a company's financial performance, and is often used as a basis for determining a company's stock price.
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Complete question is:
Catena's Marketing Company has the following adjusted trial balance at the end of the current year. Cash dividends of $665 were declared at the end of the year, and 500 additional shares of common stock ($0.10 par value per share) were issued at the end of the year for $3,260 in cash (for a total at the end of the year of 930 shares). These effects are included below:
CATENA’S MARKETING COMPANY
Income Statement
At the end of current year
Operating revenues:
Sales revenue $40,110
Interest revenue 114
Rent revenue 835
Total operating revenues 41,059
Operating expenses:
Wages expense 20,200
Utilities expense 408
Insurance expense 813
Rent expense 9,140
Depreciation expense 1,940
Total operating expenses 32,501
Operating Income: 8,558
Other item:
Pretax income 8,558
Income taxes payable 1,750
Net income $6,808
Earnings per share ?
What is the solution to the equation 1/4 ×-1/8=7/8+1/2x? X?
O x=-5
O x=-4
O x = 4
O x = 5
Answer: I think its B: x=-4
Step-by-step explanation:
Evaluate.
(a - 2b)^2 when a = -4 and b = -1/2
25
9
-9
-25
A child’s building set contains a brick with dimensions 63 x 31 x 18mm . Assume this brick is a replica of a real brick that has a greatest side length of 23 cm, determine the surface area and volume of the real brick. (Please can someone help me )
The surface area and volume of the real brick will be 983.2 cm²and 1738.11 cm³ respectively.
What is volume?The term “volume” refers to the amount of three-dimensional space taken up by an item or a closed surface. It is denoted by V and its SI unit is in cubic cm.
The scale factor is ;
r = 630 cm /23
r = 27
L = 23 cm
b = 310 / 27 = 11.48 cm
h = 180/27 = 6.6 cm
The surface area of the brick;
A = 2(lb+bh+hl)
A = 2( 23 ×11.48+11.48×6.6+6.6×23)
A= 983.2 cm²
The volume of the brick is;
V= lbh
V=23 × 11.45 ×6.6
V=1738.11 cm³
Hence the surface area and volume of the real brick will be 983.2 cm² and 1738.11 cm³ respectively.
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Each morning Bill leaves home between 6:30 and 8:00 to drive to work at University of Texas. The time it takes Bill to drive to work (TIME) depends on the departure time when he leaves after 6:30 (DEPART), the number of red lights on the way (REDS) and the number of trains that he has to wait for at the crossing (TRAINS). Observations for these variables are for 231 working days in 2006. TIME is measured in minutes after 6:30 that Bill departs. The estimated regression model is as follows; TIME -19.9166+0.3692DEPART+1.3353REDS +2.7548TRAINS R¹ -0.634 s.e (1.2548) (0.3038) (0.01553) (0.1390) a) What is the average estimated time in minutes to drive to work for Bill when he leaves on time at 6:30 and there are no red lights and no trains at the crossroad to wait?
( b) Interpret the estimated coefficients of REDS and TRAINS. c) Using a 5% significance level, test the hypothesis that each train delays Bill by 3 minutes. State your conclusion.
a) The average estimated time for Bill to drive to work when he leaves on time at 6:30 with no red lights and no trains to wait for is approximately -19.9166 minutes. b) The estimated coefficients of REDS and TRAINS in the regression model are 1.3353 (REDS). c) The absolute value of the calculated t-value (-1.7733) is less than the critical t-value (1.9719), we fail to reject the null hypothesis.
a) To find the average estimated time in minutes for Bill to drive to work when he leaves on time at 6:30 and there are no red lights and no trains at the crossroad to wait, we substitute the values into the regression model:
TIME = -19.9166 + 0.3692(DEPART) + 1.3353(REDS) + 2.7548(TRAINS)
Given:
DEPART = 0 (as he leaves on time at 6:30)
REDS = 0 (no red lights)
TRAINS = 0 (no trains to wait for)
Substituting these values:
TIME = -19.9166 + 0.3692(0) + 1.3353(0) + 2.7548(0)
= -19.9166
Therefore, the average estimated time for Bill to drive to work when he leaves on time at 6:30 with no red lights and no trains to wait for is approximately -19.9166 minutes. However, it's important to note that negative values in this context may not make practical sense, so we should interpret this as Bill arriving approximately 19.92 minutes early to work.
b) The estimated coefficients of REDS and TRAINS in the regression model are:
1.3353 (REDS)
2.7548 (TRAINS)
Interpreting the coefficients:
- The coefficient of REDS (1.3353) suggests that for each additional red light, the estimated time to drive to work increases by approximately 1.3353 minutes, holding all other factors constant.
- The coefficient of TRAINS (2.7548) suggests that for each additional train Bill has to wait for at the crossing, the estimated time to drive to work increases by approximately 2.7548 minutes, holding all other factors constant.
c) To test the hypothesis that each train delays Bill by 3 minutes, we can conduct a hypothesis test.
Null hypothesis (H0): The coefficient of TRAINS is equal to 3 minutes.
Alternative hypothesis (Ha): The coefficient of TRAINS is not equal to 3 minutes.
We can use the t-test to test this hypothesis. The t-value is calculated as:
t-value = (coefficient of TRAINS - hypothesized value) / standard error of coefficient of TRAINS
Given:
Coefficient of TRAINS = 2.7548
Hypothesized value = 3
Standard error of coefficient of TRAINS = 0.1390
t-value = (2.7548 - 3) / 0.1390
= -0.2465 / 0.1390
≈ -1.7733
Using a significance level of 5% (or alpha = 0.05) and looking up the critical value for a two-tailed test, the critical t-value for 230 degrees of freedom is approximately ±1.9719.
Since the absolute value of the calculated t-value (-1.7733) is less than the critical t-value (1.9719), we fail to reject the null hypothesis. This means that there is not enough evidence to conclude that each train delays Bill by 3 minutes.
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help with this word problem???? :)
Answer:
I'm pretty sure it's 144
Step-by-step explanation:
1. 160 divided by 5 is 32 so 1 quart = 32 pounds
2. 32 times 4.5 = 144
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Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The mean length of the conferences was 3.94 days, with a standard deviation of 1.28 days. Assume the underlying population is normal.
a. In words, define the random variables X and .
b. Which distribution should you use for this problem? Explain your choice.
c. Construct a 95% confidence interval for the population mean length of engineering conferences.
i. State the confidence interval.
ii. Sketch the graph.
iii. Calculate the error bound.
The random variable X represents the length of each engineering conference, and is measured in days.
The normal distribution should be used for this problem, as the underlying population is normal. The normal distribution is a continuous probability distribution that is characterized by a symmetric bell-shaped curve. It is a useful model for events that follow a normal or Gaussian pattern, such as the lengths of engineering conferences.
c. i. The 95% confidence interval for the population mean length of engineering conferences is (3.38, 4.50) days.
ii. The graph of the 95% confidence interval for the population mean length of engineering conferences is shown below.
iii. The error bound for the 95% confidence interval is 0.77 days. This can be calculated using the formula: Error Bound = 1.96*(standard deviation/√sample size). In this case, the error bound is calculated as: 1.96 * (1.28/√84) = 0.77.
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I feel like my answer is wrong so please help!!
Answer:
It has a radius of 4.9meters so its diameter will be multiplied by two making it 9.8meters
Answer: Diameter of each semicircle is 9.8 m, because there is said that these are semicircles, so 4,9 m means radius.
Step-by-step explanation: Semicircle is half of the circle so that means it's divided in half and pass through center point. Radius is the distance from central point to any point of the circumference, and the diameter is equal 2 times Radius.
3. College logo T-Shirts priced at $15 sell at a rate of 25t-shirts per week, but when the bookstore marks them down to $10, it finds that it can sell 50 t-shirts per week. What is the price elasticity of demand for the logo Tshirts? Is it elastic, inelastic or unit elastic and WHY? Did the t-shirt make a good decision in lowering the price of t-shirts? WHY OR WHY NOT? Explain by calculating total revenue for each price at $15 and $10 and then use the price-total revenue test format to see if t-shirts are elastic, inelastic or unit elastic and WHY.
The price elasticity of demand (PED) for the logo T-shirts is 1.67, indicating that the demand for T-shirts is elastic. Lowering the price from $15 to $10 increased the total revenue, suggesting that the T-shirt made a good decision in lowering the price. This is because the price change led to a significant increase in quantity demanded and overall revenue.
To calculate the price elasticity of demand (PED), we can use the following formula:
PED = ((Q2 - Q1) / ((Q2 + Q1) / 2)) / ((P2 - P1) / ((P2 + P1) / 2))
Given that Q1 = 25, Q2 = 50, P1 = $15, and P2 = $10, we can substitute these values into the formula:
PED = ((50 - 25) / ((50 + 25) / 2)) / (($10 - $15) / (($10 + $15) / 2))
Simplifying this expression:
PED = (25 / 37.5) / (-5 / 12.5)
PED = (-2/3) * (-2.5) = 1.67
The price elasticity of demand (PED) for the logo T-shirts is 1.67.
Since PED is greater than 1, it indicates that the demand for T-shirts is elastic. This means that a decrease in price by 1% will result in a greater than 1% increase in quantity demanded. To determine if lowering the price was a good decision, we can analyze the effect on total revenue. The price-total revenue test states that:
If PED is elastic (greater than 1), a decrease in price will lead to an increase in total revenue.
If PED is inelastic (less than 1), a decrease in price will lead to a decrease in total revenue.
If PED is unit elastic (equal to 1), a change in price will have no effect on total revenue.
Let's calculate the total revenue at both prices:
Total Revenue at $15 = $15 * 25 = $375
Total Revenue at $10 = $10 * 50 = $500
Comparing the total revenue at each price, we can see that lowering the price from $15 to $10 increased the total revenue from $375 to $500. Therefore, the T-shirt made a good decision in lowering the price because it led to an increase in total revenue.
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Oil is pumped from a well at a rate of 500 gallons per hour. How many gallons of oil are pumped from the well in 3 hours and 15 mins
f (x) = x2 + 4
What is the value of x when f (x) = 42
A. -2
В. 0
C 12
D. 20
Answer:
f(x)=X^2+4
f(x)=42
42=X^2+4
X^2+4=42
X^2=42-4
X^2=38
X=sqrt(38)=6.16
\( \sqrt{?} \)
John is saving to buy a new car that will cost him $24,000. John started his savings at the beginning of the school year and has been able to accumulate $1000 after the first month. John plans to continue his savings at a rate proportional to the amount he still needs to save. Determine John's savings amount as function of time Hint: A variable y is said to be proportional to a variable x if y=cx for some constant c.
John's savings amount as a function of time is S(t) = $24,000 / 25. Initially, he needs to save $24,000 for a new car. After the first month, he has saved $1,000. The savings amount is directly proportional to the time elapsed. The constant of proportionality is 1/24. Thus, John's savings amount can be determined based on the remaining amount he needs to save.
John's savings amount can be represented as a function of time and is proportional to the amount he still needs to save. Let's denote the amount John needs to save as N(t) at time t, and his savings amount as S(t) at time t. Initially, John needs to save $24,000, so we have N(0) = $24,000.
We know that John has saved $1,000 after the first month, which means S(1) = $1,000. Since his savings amount is proportional to the amount he still needs to save, we can write the proportionality as:
S(t) = k * N(t)
where k is a constant of proportionality.
We need to find the value of k to determine John's savings amount at any given time.
Using the initial values, we can substitute t = 0 and t = 1 into the equation above:
S(0) = k * N(0) => $1,000 = k * $24,000 => k = 1/24
Now we have the value of k, and we can write John's savings amount as a function of time:
S(t) = (1/24) * N(t)
Since John's savings amount is proportional to the amount he still needs to save, we can express the amount he still needs to save at time t as:
N(t) = $24,000 - S(t)
Substituting the expression for N(t) into the equation for S(t), we get:
S(t) = (1/24) * ($24,000 - S(t))
Simplifying the equation, we have:
24S(t) = $24,000 - S(t)
25S(t) = $24,000
S(t) = $24,000 / 25
Therefore, John's savings amount at any given time t is S(t) = $24,000 / 25.
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In the ACME rubber ball factory, a stream of rubber balls, each of mass m, comes out of a horizontal tube at a rate of R per second. These balls fall a distance of h into a bucket of mass M suspended by a rope from the ceiling. If the balls bounce out of the bucket back to their original height when leaving the tube, what is the (average) tension T in the massless rope holding the bucket
Therefore, the average force exerted on the bucket per unit time is given by the change in momentum divided by the time interval: Δp / (1/R) = RΔp.
The average tension T in the massless rope holding the bucket is equal to the total force exerted on the bucket due to the falling rubber balls. This force is equal to the change in momentum of the balls per unit time. When a rubber ball falls into the bucket, it experiences a change in momentum due to the gravitational force acting on it.
The change in momentum is given by the product of the mass of the ball (m) and the change in velocity (v), which is equal to the velocity of the ball when it leaves the tube. Since the balls bounce back to their original height, the change in velocity is twice the initial velocity, as the ball reverses its direction. The time interval between successive ball impacts is 1/R.
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How are the properties of exponents used when dividing a polynomial by a monomial?
Answer:
a couple different obes
Step-by-step explanation:
there are five
The bearing of A from B is 129 and the bearing of C from B is 219. If B is equidistant from A and C, find the bearing of C from A
The bearing of C from A is 90 degrees when B is equidistant from A and C.
What is bearing?In navigation and geometry, bearing refers to the direction or angle between two points, measured clockwise from a fixed reference direction. Typically, bearings are measured in degrees, with 0 degrees indicating a direction due north, 90 degrees indicating a direction due east, 180 degrees indicating a direction due south, and 270 degrees indicating a direction due west. Bearings can be expressed as either magnetic bearings or true bearings, depending on the reference direction used.
According to the given informationLet's assume that the distance from B to A and from B to C is the same.
To find the bearing of C from A, we can use the fact that the interior angles of a triangle sum up to 180 degrees. Therefore, we can first find the bearing of A from C:
180 - 129 = 51
This means that the bearing of C from A is 51 degrees in the opposite direction of the bearing of A from C. Since the bearing of A from C is 219, the bearing of C from A is:
219 - 180 + 51 = 90 degrees
Therefore, the bearing of C from A is 90 degrees.
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See Solution Bcore: 5 Penalty: None gleton Operations on Functions 6:13PM f(x)=x^(2)-5x-50 and g(x)=x+5, find (f-g)(x)
The value of (f-g)(x) is x^(2)-6x-55.
What are Mathematical operations on a function?Mathematical operations on a function involve the manipulation or transformation of the function, such as adding, subtracting, multiplying, dividing, and integrating the function. These operations can be done either to the function itself or to the domain or range of the function. This can be used to find the inverse of a function, calculate the area under the curve, or find the first or second derivative of a function.
To find (f-g)(x), we need to subtract the function g(x) from the function f(x).
(f-g)(x) = f(x) - g(x)
= (x^(2)-5x-50) - (x+5)
= x^(2)-5x-50 - x - 5
= x^(2)-6x-55
Therefore, (f-g)(x) = x^(2)-6x-55.
This is the final answer for the difference between the two functions f(x) and g(x).
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