Answer:
f¹(12) = 20
Step-by-step explanation:
f(-2) = 24
f(-1) = 17
f(0) = 12
f(1) = 9
f¹(x) = 2x - 4
f¹(12) = 20
Kyla has a concrete patio in the shape of a semi-circle. What is the area of the patio? Use 3. 14 for π. It’s s i circle and is 6. 75 ft and in squared
The area of the semi-circle patio is approximately 17.91 square feet.
To find the area of the semi-circle patio, we need to use the formula for the area of a circle, which is A = πr^2, where π is 3.14 and r is the radius of the circle.
However, since we only have a semi-circle, we need to divide the result by 2 to get the area of the half-circle.
In this case, the radius of the semi-circle is half of the diameter, which is given as 6.75 feet. So, the radius is 6.75/2 = 3.375 feet.
Now, we can plug this value into the formula:
A = (π)(3.375)^2 / 2
A = (3.14)(11.390625) / 2
A = 35.81765625 / 2
A = 17.908828125 square feet
Therefore, the area of the semi-circle patio is approximately 17.91 square feet.
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Don buys a car valued at $23,000. When the car was new, it sold for $30,000. If the car depreciates exponentially at a rate of 6% per year, about how old is the car?
Answer:
Around 3 years
Step-by-step explanation:
6% of 30000 is 1800. I subtracted 1800 from 30000 until it got down too 24000 so im assuming that's how old
Unit 7 polygons and quadrilaterals homework 4 rectangles
Find the missing measures.
To find the missing measures of a rectangle, we should know that all rectangles have four sides, and each side has a length.
If we have a quadrilateral like a rectangle with four angles, all the angles must be 90 degrees. We need to use the properties of rectangles to find the missing measures of a rectangle. We will find the length of each side first. The length of all sides of a rectangle should be the same. Then, we will calculate the area of the rectangle by multiplying the length of one side by the length of the other side.
Finally, to find the missing measures we will use the Pythagoras Theorem. The Pythagoras Theorem states that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides. Using this theorem, we can find the length of the hypotenuse of the rectangle.
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The complete question is " If each quadrilateral is given, then define the steps to find the missing measures of a rectangle."
y = 3x⁴ + 4x³
Find the
1) Domain
2) Intercepts
3) Asymptotes
4) Symmetry
5) Critical Points
6) Maxima/Minimum
7) Concavity
1) The domain of Y = 3x⁴ + 4x³ is (-∞, ∞).
2) The x-intercepts are (0, 0) and (-4/3, 0) and the y-intercept is (0, 0)
3) The horizontal asymptote is y = infinity.
4) Function does not exhibit any symmetry with respect to the y-axis or origin.
5) The critical points are x = 0 and x = -1.
6) The critical points are x = 0 and x = -1.
7) The function is concave down on the interval (-∞, -2/3) and concave up on the intervals (-2/3, 0) and (0, ∞).
How to find domain?1) The domain of a polynomial function is all real numbers, so the domain of Y = 3x⁴ + 4x³ is (-∞, ∞).
How to find Intercepts?2) To find the x-intercepts, we set Y equal to zero and solve for x:
0 = 3x⁴ + 4x³
0 = x³(3x + 4)
x = 0 or x = -4/3
Therefore, the x-intercepts are (0, 0) and (-4/3, 0).
To find the y-intercept, we set x equal to zero and solve for Y:
Y = 3(0)⁴ + 4(0)³
Y = 0
Therefore, the y-intercept is (0, 0).
How to find Asymptotes?3) Polynomial functions do not have vertical asymptotes. However, as x approaches positive or negative infinity, the function approaches infinity. Therefore, the horizontal asymptote is y = infinity.
How to find Symmetry?4) The function Y = 3x⁴ + 4x³ is neither even nor odd. Therefore, it does not exhibit any symmetry with respect to the y-axis or origin.
How to find Critical Points?5) To find the critical points, we take the first derivative of Y and set it equal to zero:
Y' = 12x³ + 12x²
0 = 12x²(x + 1)
Therefore, the critical points are x = 0 and x = -1.
How to find Maxima/Minimum?6) To determine whether the critical points are maxima or minima, we take the second derivative of Y and evaluate it at each critical point:
Y'' = 36x² + 24x
At x = 0, Y'' = 0, which means that the second derivative test is inconclusive. To determine whether x = 0 is a maxima or minima, we look at the sign of the first derivative to the left and right of the critical point. We find that Y' is negative to the left of x = 0 and positive to the right, so x = 0 is a local minimum.
At x = -1, Y'' = 12, which is positive. Therefore, x = -1 is a local minimum.
How to find Concavity?7) To determine the concavity of the function, we look at the sign of the second derivative:
Y'' = 36x² + 24x
When Y'' > 0, the function is concave up, and when Y'' < 0, the function is concave down.
At x < -2/3, Y'' is negative, so the function is concave down.
At -2/3 < x < 0, Y'' is positive, so the function is concave up.
At x > 0, Y'' is positive, so the function is concave up.
Therefore, the function is concave down on the interval (-∞, -2/3) and concave up on the intervals (-2/3, 0) and (0, ∞).
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someone help please 30 points
The difference in masses is equal to 1,728 grams.
How to calculate the volume of a rectangular prism?In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:
Volume of a rectangular prism = L × W × H
Where:
L represents the length of a rectangular prism.W represents the width of a rectangular prism.H represents the height of a rectangular prism.By substituting the given dimensions (parameters) into the formula for the volume of a rectangular prism, we have the following;
Volume of rectangular prism = 9 × 3 × 8
Volume of rectangular prism = 216 cm³.
Mass of gold = density × volume
Mass of gold = 19.3 × 216
Mass of gold = 4,168.8 grams.
Mass of lead = 11.3 × 216
Mass of lead = 2,440.8 grams.
Difference in masses = 4,168.8 grams - 2,440.8 grams.
Difference in masses = 1,728 grams.
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If you want to put a border around a rectangular room what steps would you use to find the length of border needed
To find the length of border needed to put around a rectangular room, you can follow these steps:
Measure the length and width of the room using a tape measure or ruler. Let's say the length is L and the width is W.
Determine the type and width of the border you want to put around the room. Let's say you want to use a wallpaper border that is 6 inches wide.
Calculate the length of the border needed for the top and bottom of the room.
This can be done by adding the width of the room to twice the width of the border. So the length of the top and bottom borders would be:
Length of top/bottom borders = 2(W + 6 inches)
Calculate the length of the border needed for the left and right sides of the room. This can be done by adding the length of the room to twice the width of the border. So the length of the left and right borders would be:
Length of left/right borders = 2(L + 6 inches)
Add up the length of all four borders to get the total length of border needed to put around the room:
Total length of border = 2(W + 6 inches) + 2(L + 6 inches)
Simplifying the above equation, we get:
Total length of border = 2L + 2W + 24 inches
So the total length of border needed to put around the room is 2L + 2W + 24 inches.
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Can anyone help with this question on this picture
The distance it would take to travel across the river on the bridge than to take the ferry is 4√6 units.
How to determine the distance between the coordinates for each points?In Mathematics and Geometry, the distance between two (2) end points that are on a coordinate plane can be calculated by using the following mathematical equation:
Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]
Where:
x and y represent the data points (coordinates) on a cartesian coordinate.
By substituting the given end points into the distance formula, we have the following;
Distance AC = √[(-4 - 0)² + (2 - 2)²]
Distance AC = √[(-4)² + (0)²]
Distance AC = √[16 + 0]
Distance AC = √16
Distance AC = 4 units.
Distance AB = √[(2 - 0)² + (0 + 2)²]
Distance AB = √[(2)² + (2)²]
Distance AB = √[4 + 4]
Distance AB = √8
Distance AC = 2√2 units.
From Pythagorean Theorem, the length of BC is given by;
BC² = (2√2)² + 4²
c² = 8 + 16
c = √24
c = 4√6 units.
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As an estimation we are told 3 pounds is four euros convert 16 euros to pounds
As an estimation of the exchange rates, 16 Euros is approximately equal to 12 Pounds.
To convert Euros to Pounds, we first need to determine the conversion rate between these two currencies. From the information provided, we know that 3 Pounds is approximately equal to 4 Euros. Using this information, we can establish a conversion factor by dividing 3 Pounds by 4 Euros:
Conversion factor = 3 Pounds / 4 Euros = 0.75 Pounds per Euro
Now that we have the conversion factor, we can use it to convert 16 Euros to Pounds. To do this, we simply multiply the amount in Euros (16) by the conversion factor (0.75 Pounds per Euro):
16 Euros * 0.75 Pounds per Euro = 12 Pounds
So, as an estimation, 16 Euros is approximately equal to 12 Pounds. Keep in mind that exchange rates between currencies can fluctuate over time, so it's always a good idea to double-check the current rate before making any financial transactions.
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Complete Question:
As an estimation we are told £3 is €4.
Convert €16 to pounds.
Evaluate the line integral JF. dr where F = (-2 sin x, 2 cos y, 6zx) and C is the path given by r(t) = (3t^3, -3t^2, -3t) for 0 <= t <= 1
To evaluate the line integral JF.dr, where F = (-2 sin x, 2 cos y, 6zx) and C is the path given by r(t) = (3t^3, -3t^2, -3t) for 0 <= t <= 1, we first need to parameterize F and r in terms of t.
For F, we have:
F = (-2 sin x, 2 cos y, 6zx) = (-2 sin (3t^3), 2 cos (-3t^2), 6(3t^3)(-3t)) = (-2 sin (3t^3), 2 cos (3t^2), -54t^4)
For r, we already have the parameterization:
r(t) = (3t^3, -3t^2, -3t)
Now we can use the formula for the line integral:
JF.dr = ∫(F dot dr)
= ∫(-2 sin (3t^3) dx + 2 cos (3t^2) dy - 54t^4 dz)
= ∫(-18t^2 cos (3t^2) + 18t^2 cos (3t^2) - 54t^4) dt
= ∫(-54t^4) dt
= -9t^5 + C
Evaluating this expression for t = 1 and t = 0, we get:
JF.dr = (-9(1)^5 + C) - (-9(0)^5 + C)
= -9 + 9
= 0
Therefore, the line integral JF.dr evaluated along the path given by r(t) = (3t^3, -3t^2, -3t) for 0 <= t <= 1 is equal to 0.
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Toby created a sculpture for art class using different-sized cubes. the smallest cube is 1.5 inches along each edge. the largest cube is 7.5 inches along each edge. how many of the smallest cubes would it take to fill the largest cube
It would take approximately 125 of the smallest cubes to fill the largest cube.
To determine the number of the smallest cubes that would fit inside the largest cube, we need to calculate the volume of both cubes.
The volume of a cube can be calculated by multiplying the length of one side by itself three times (since a cube has three equal sides). So, the volume of the smallest cube would be 1.5 x 1.5 x 1.5 = 3.375 cubic inches.
The volume of the largest cube can be calculated in the same way. The length of one side is 7.5 inches, so the volume would be 7.5 x 7.5 x 7.5 = 421.875 cubic inches.
To determine how many of the smallest cubes would fit inside the largest cube, we need to divide the volume of the largest cube by the volume of the smallest cube. So, 421.875 divided by 3.375 equals approximately 125.
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Patti got a new part-time job. Her hourly wage increased from $10.00 to $12.30. What was the percent increase in Patti's hourly wage
The percent increase in Patti's hourly wage is 23%.
What was the percent increase in Patti's hourly wage?Percent increase is aimply the amount of increase from the initial value to the new value in terms of 100 parts of the initial value.
It is expressed as:
percent increase = ((new value - old value) / old value) × 100%
Given that, the old hourly wage was $10.00 and the new hourly wage is $12.30.
Substituting the values into the formula, we get:
percent increase = ((new value - old value) / old value) × 100%
percent increase = (($12.30 - $10.00) / $10.00) × 100%
percent increase = ($2.30 / $10.00) × 100%
percent increase = 0.23 × 100%
percent increase = 23%
Therefore, the percent increase is 23%.
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a scientist recorded the growth (g) of pine trees and the amount of rain fall (r) they received in their first year. which equation best fits the data
An equation that best fits the data is: C. g = -0.019r² + 0.797r + 1.94.
How to determine the line of best fit?In this scenario, the r (inches) would be plotted on the x-axis (x-coordinate) of the scatter plot while the G (inches) would be plotted on the y-axis (y-coordinate) of the scatter plot through the use of Microsoft Excel.
On the Microsoft Excel worksheet, you should right click on any data point on the scatter plot, select format trend line, and then tick the box to display an equation for the line of best fit (trend line) on the scatter plot.
From the scatter plot (see attachment) which models the relationship between the r (inches) and the G (inches), an equation for the line of best fit is given by:
g = -0.019r² + 0.797r + 1.94
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Pls help I don’t get how to do this
Answer:
Step-by-step explanation:
explanation in image
A group of Mupuvr CLC MLMMS4 students were questioned how they got to school half of the students saod they walk one third said they take a taxi amd the rest claimed they drive
Calculate the number of students delivered by car using proper fractions
The number of students who drive to school can be calculated as one-sixth of the total number of students.
How many students out of the Mupuvr CLC MLMMS4 group?Let's assume the total number of students in the Mupuvr CLC MLMMS4 group is represented by the variable 'x'. According to the given information, half of the students walk to school, which is equal to (1/2) * x. One-third of the students take a taxi, which is equal to (1/3) * x. The remaining students, who claim to drive, can be calculated as x - [(1/2) * x + (1/3) * x].
Simplifying this expression, we have x - (5/6) * x, which is equal to (1/6) * x. Therefore, the number of students who claim to drive to school is one-sixth of the total number of students.
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Babacar has a coupon for 20% off, after tax, at Burger Beast Restaurant. When Babacar and Arturo eat dinner at Burger Beast restaurant, their bill is $36. 00 after tax. They use Babacar’s coupon, and they decide to leave a tip that is 20% of the discounted price. How much did Babacar and Arturo pay in total?
The total amount Babcar and Arutro paid in the Burger Beast Restaurant is $ 34.56.
Total bill = $36
Discount coupon = 20 %
The price paid after the discount coupon = 36 - (20% of 36 )
Price paid = 36 - (36 × 20/100)
The price paid = 36 - 7.2
Price paid = 28.8
The tip paid is 20 % the discounted price
The tip paid = 20% of 28.8
The tip paid = 28.8 × 20/100
The tip paid = 5.76
The total price paid = price paid after discount coupon + Tip paid
The total price paid = 28.8 + 5.76
The total price paid = 34.56
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_______ assisted Anton Raphael Mengs with the iconography of his ceiling fresco, Parnasus, in the Villa Albani.
A) Johann Winckelmann
B) Cardinal Albani
C) Jacques Louis David
D) Joshua Reynolds
a) Factorise x²-2x-3
Answer:
Solution: (x-3)(x+1)
Step-by-step explanation:
1) Using Mid term break:
x²-2x-3
x²+x-3x-3
2) Take Common Factors from the two pairs
(x²+x) + (-3x-3)
x(x+1) -3(x+1)
3) Rewrite in Factored Form:
(x-3)(x+1)
A museum charges 12. 50 admission Each special  sip it cost extra 2. 00 Write an expression that represents the cost in dollars of admission to the museum including admittance to n special exhibits.
The expression that represents the cost, in dollars, of admission to the museum including admittance to n special exhibits can be written as 12.50 + 2n
Here, 12.50 is the base admission cost without any special exhibit, and 2n represents the cost of n special exhibits, where each exhibit costs an extra $2.00.
By multiplying the number of special exhibits, n, by $2.00, we get the total cost of special exhibits, which we can then add to the base admission cost to get the total cost of admission to the museum including admittance to n special exhibits.
For example, if someone wants to visit the museum and see 3 special exhibits, the cost of admission would be:
12.50 + 2(3) = 12.50 + 6 = $18.50
Therefore, the expression 12.50 + 2n represents the total cost of admission to the museum including admittance to n special exhibits.
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Complete question is:
A museum charges $12.50 for admission. Each special exhibit costs an extra $2.00. Part A Write an expression that represents the cost, in dollars, of admission to the museum including admittance to n special exhibits
The path r(t)=(t) i+(3t2+5) j describes motion on the parabola y=3x2+5. Find the particles velocity and acceleration vectors at t=5
The particle's velocity vector at t=5 is v(5) = 1i + 30j, and the acceleration vector at t=5 is a(5) = 0i + 6j.
To find the particle's velocity, we take the derivative of the path r(t) with respect to time:
v(t) = r'(t) = i + 6t j
Substituting t=5, we get:
v(5) = 1i + 30j
To find the particle's acceleration, we take the derivative of the velocity with respect to time:
a(t) = v'(t) = 0i + 6j
Substituting t=5, we get:
a(5) = 0i + 6j
Note that the acceleration vector is constant, which is expected since the particle is moving along a parabolic path, and the curvature of the path remains constant.
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The graph of a quadratic function f is shown on the
grid. Which of these best represents the domain of f?
-4
Oy≥-12.25
All real numbers
All real numbers less than -4 or greater than 5
All real numbers will be the function's domain. D is the right answer in this case.
What are domain and range?The range of values that we are permitted to enter into our function is known as the domain of a function.
The x values for a function like f make up this set(x).
A function's range is the collection of values it can take as input.
After we enter an x value, the function outputs this sequence of values.
The range refers to all potential values of y, and the domain refers to all conceivable values of x.
Let a be the leading coefficient and the parabola's vertex be the point (h, k).
The parabola's equation will then be provided as,
y = a(x - h)² + k
The graph shows where the vertex of the parabola will be. (-1.5, -4.5). The equation is then presented as:
y = a(x + 1.5)² - 4.5
Therefore, all real numbers will be the function's domain. D is the right answer in the case.
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Correct question:
The graph of the quadratic function f is shown in the grid. Which of these best represents the domain of f?
A: y>=4.5
B: All real numbers less than -4 or greater than 1
C: -4<=x<=1
D: All real numbers
The drama club is selling tickets to their play to raise money for the ticket sells for $9. The auditorium can hold no more than 110 people. The drama club must make a minimum of $720 from show's expenses. Each student ticket sells for $4 and each adult ticket sales to cover the show's costs. If x represents the number of student tickets sold and y represents the number of adult tickets sold, write and solve a system of inequalities graphically and determine two possible solutions.
A system of inequalities to model this situation is 4x + 9y ≥ 720 and x + y ≤ 110.
The two possible solutions are (80, 40) and (100, 20).
How to write an equation to model this situation?In order to write a linear equation to describe this situation, we would assign variables to the number of student tickets sold and the number of adult tickets sold respectively, and then translate the word problem into a linear equation as follows:
Let the variable x represent number of student tickets sold.Let the variable y represent number of adult tickets sold.Since each student ticket was sold for $4 and each adult ticket sales to cover the show's costs sells for $9 in order to make a minimum of $720 from show's expenses, a linear equation which can be used to model the situation is given by;
4x + 9y ≥ 720
Additionally, the auditorium can hold no more than 110 people;
x + y ≤ 110
Next, we would use an online graphing calculator to plot the above system of linear equations in order to determine its solution as shown in the graph attached below.
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Identify the name of the shape. prove with the explanation.
The Ferrells save $150 each month for their next summer vacation. Write an equation that they can use to find y, their savings, after x months
The equation that represents the Ferrells' savings after x months is y = 150x
In this equation, x represents the number of months that the Ferrells have been saving, and y represents the amount of money they have saved after x months.
The coefficient 150 represents the amount of money the Ferrells save each month, and it is multiplied by the number of months x to get the total savings y. For example, after 5 months of saving, the Ferrells would have saved:
y = 150(5) = $750
This equation can be used to calculate their savings at any point in time, as long as they continue to save $150 each month.
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What’s the answer? I need help pls help me
Answer:
Step-by-step explanation:
EX. in function f(x) = 2 cos x -2
The first 2 is your amplitute, how high from middle line it goes
the last 2 is the shift in y direction.
For f(x) = 2 cos x -2 (see image for this function)
it has been shifted down 2 and has a period
At [tex]\pi[/tex] your function has a solution of -4
The first blank is f(x) = cos x+2
Second blank is f(x) = cos x -2
Anissa said that distance, d, could be either an independent or dependent variable Explain Anissa's statement. Distance, d, could be an) Choose. Variable because it affects the amount of time that someone has traveled. Distance, d, could also be a(n) Choose variable because it is affected by the speed traveled.
Anissa's statement is correct.
The classification of distance, d, as either an independent or dependent
variable depends on the context in which it is used.
Distance as an independent variable:
In this case, distance, d, is considered an independent variable because it
affects the amount of time someone has traveled.
When we are interested in studying how the distance traveled affects
other variables, such as time or fuel consumption, we treat distance as the
independent variable and manipulate it to observe its impact on the
dependent variables.
For example, if we conduct an experiment to measure the time it takes to
travel a certain distance under different conditions (e.g., different speeds or
modes of transportation), we would vary the distance as the independent
variable while keeping other factors constant.
In this scenario, distance is the independent variable, and time is the
dependent variable.
Distance as a dependent variable:
On the other hand, distance, d, can also be considered a dependent
variable when it is affected by the speed traveled.
In this case, speed becomes the independent variable, and distance is
dependent on the speed at which an object or person travels.
For instance, if we investigate how the speed of a vehicle affects the
distance it can travel within a given time, we would manipulate the speed
as the independent variable and observe the corresponding changes in
distance.
Here, distance is the dependent variable, and speed is the independent
variable.
In summary, Anissa's statement is accurate because distance, d, can be
considered an independent variable when it affects other factors such as
time, and it can also be a dependent variable when it is influenced by
factors like speed.
The designation of distance as independent or dependent depends on the
specific context and the relationship it shares with other variables in the
given situation.
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Line m passes through the points (-4, 3) and (-4, 7). What is the slope of the line that is parallel to line m? Show all of your work for full credit
The slope of desired parallel line is undefined.
How to find slope of a line?Given two points [tex](-4, 3)[/tex] and [tex](-4, 7)[/tex], we can see that both points have the same x-coordinate, which means that they lie on a vertical line parallel to the y-axis. Since the slope of a vertical line parallel to the y-axis is undefined, we can say that the slope of line m is undefined.
To find the slope of a line that is parallel to line m, we can use the fact that parallel lines have the same slope. Since the slope of line m is undefined, any line parallel to it will also have an undefined slope.
Therefore, the slope of the line that is parallel to line m is undefined.
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88 POINTS!!!!!
Joe and Tommy are playing a game of chicken. Tommy has a mass of 91 kg, Joe has a mass of 97 kg. Tommy is running towards Joe with a velocity of 5 m/s, Joe is running towards Tommy with a velocity of 6 m/s. Neither "chickens" out. After collision, Joe is standing still. How fast does Tommy bounce off Joe? Round to four decimal places
Tommy bounces off Joe at a speed of 5.9451 m/s after the collision.
We need to use the conservation of momentum, which states that the total momentum of a closed system remains constant. In this case, the closed system is the two players, Joe and Tommy.
We can start by calculating the initial momentum of the system, which is given by:
[tex]p_{initial} = m_{Tommy} * v_{Tommy} + m_{Joe} * v_{Joe}[/tex]
where m_Tommy and m_Joe are the masses of Tommy and Joe, respectively, and v_Tommy and v_Joe are their initial velocities.
Plugging in the given values, we get:
[tex]p_{initial} = 91 kg * 5 m/s + 97 kg * 6 m/s[/tex]
p_initial = 1123 kgm/s
After the collision, Joe is standing still, which means his velocity is zero. Let's call Tommy's velocity after the collision v_Tommy', which we need to find.
The final momentum of the system is given by:
[tex]p_{final} = m_{Tommy} * v_{Tommy'} + m_{Joe} * 0[/tex]
where we set Joe's velocity to zero since he's standing still.
Since the momentum is conserved, we can equate p_initial and p_final:
p_initial = p_final
[tex]m_Tommy * v_Tommy + m_Joe * v_Joe = m_Tommy * v_Tommy'[/tex][tex]m_{Tommy} * v_{Tommy} + m_{Joe} * v_{Joe} = m_{Tommy} * v_{Tommy'}[/tex]
91 kg * 5 m/s + 97 kg * 6 m/s = 91 kg * v_Tommy'
Solving for v_Tommy', we get:
[tex]v_{Tommy'} = (91 kg * 5 m/s + 97 kg * 6 m/s) / 91 kg[/tex]
v_Tommy' = 5.9451 m/s (rounded to four decimal places)
In summary, we used the conservation of momentum to calculate the velocity of Tommy after bouncing off Joe. We found that he bounces off Joe at a speed of 5.9451 m/s.
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When the price of a certain product is $40, 25 items can be sold. When the price of the same
product costs $20, 185 items can be sold. On the other hand, when the price of this product
is $40, 200 items will be produced. But when the price of this product is $20, only 100 items
will be produced. Use this information to find supply and demand functions (assume for
simplicity that the functions are linear), and compute the consumer and producer surplus at
the equilibrium price
Based on the information, the equilibrium price is $56.67
How to calculate the equillbriumUsing the first data point, we have:
25 = a - 40b
Using the second data point, we have:
185 = a - 20b
Solving these two equations simultaneously, we get:
a = 325
b = 5/2
So the demand function is:
Qd = 325 - 5/2 P
the supply function is:
Qs = -100 + 5P
325 - 5/2 P = -100 + 5P
425 = 15/2 P
P = $56.67
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You complete two events of a triathlon. Your goal is to finish with an overall time of less than 100 minutes.
a. Select an inequality that represents how many minutes x
you can take to finish the running event and still meet your goal. Then solve the inequality.
18. 2+45. 4+x<100
18. 2
+
45. 4
+
x
<
100
18. 2+45. 4+x<100
18. 2
+
45. 4
+
x
<
100
x+18. 2+45. 4≤100
x
+
18. 2
+
45. 4
≤
100
x plus 18 point 2 plus 45 point 4 is less than or equal to 100
18. 2+x+45. 4>100
18. 2
+
x
+
45. 4
>
100
18 point 2 plus x plus 45 point 4 is greater than 100
45. 4+18. 2+x≥100
45. 4
+
18. 2
+
x
≥
100
45 point 4 plus 18 point 2 plus x is greater than or equal to 100
Question 2
The solution is.
Question 3
b. The running event is 3. 1 miles long. Suppose it takes you 8 minutes to run a mile. Would this time allow you to reach your goal? Explain your reasoning.
At 8 minutes per mile, it would take you minutes to run 3. 1 miles.
Question 4
You meet your goal because your total running time added to your swimming and biking times less than 100 minutes.
23 of 24 answered
check answer
Since 24.8 minutes is less than 36.4 minutes, you would still meet your goal because your total running time added to your swimming and biking times is less than 100 minutes.
The inequality that represents how many minutes x you can take to finish the running event and still meet your goal is: 18.2 + 45.4 + x < 100. To solve for x, we need to isolate it on one side of the inequality:
18.2 + 45.4 + x < 100
x < 100 - 18.2 - 45.4
x < 36.4
Therefore, you can take no more than 36.4 minutes to finish the running event and still meet your goal of finishing with an overall time of less than 100 minutes.
For question 3, if it takes 8 minutes to run a mile and the running event is 3.1 miles long, it would take you 24.8 minutes to complete the running event. This time is less than the maximum time of 36.4 minutes that you can take to still meet your goal, so yes, this time would allow you to reach your goal.
For question 4, the statement is just reiterating the goal mentioned in the first sentence, that your overall time for all three events must be less than 100 minutes. It confirms that you have met your goal by stating that your total running time added to your swimming and biking times is less than 100 minutes.
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Hunter needs 10 ounces of a snack mix that is made up of seeds and dried fruit. the
seeds cost $1.50 per ounce and dried fruit costs $2.50 per ounce. hunter has $22
to spend and plans to spend it all.
let x = the amount of seeds
let y = the amount of dried fruit
part 1: create a system of equations to represent the scenario. (2 points)
part 2: solve your system using any method. write your answer as an ordered pair. (2
points)
Hunter needs 3 ounces of seeds and 7 ounces of dried fruit, which will cost him $22 in total. The system of equations is 1.5x + 2.5y = 22 and x + y = 10. The solution is (x,y) = (3,7).
The total amount of snack mix required is 10 ounces. So, the sum of the amount of seeds and dried fruit should be 10.
x + y = 10 ---(Equation 1)
The cost of seeds is $1.50 per ounce and the cost of dried fruit is $2.50 per ounce. The total cost of snack mix should be $22.
1.50x + 2.50y = 22 ---(Equation 2)
To solve the system, we can use substitution method. Solving Equation 1 for y, we get
y = 10 - x
Substituting this value of y in Equation 2, we get
1.5x + 2.5(10 - x) = 22
Simplifying and solving for x, we get
1.5x + 25 - 2.5x = 22
-x = -3
x = 3
So, Hunter needs 3 ounces of seeds and 7 ounces of dried fruit to make 10 ounces of snack mix with a total cost of $22.
The ordered pair is (3, 7).
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