The volume of the solid obtained by rotating the region about the line x=9 is approximately 201.06 cubic units.
To find the volume of the solid obtained by rotating the region bounded by 2 =8 32? and 2 = -2y about the line x= 9, we can use the cylindrical shell method.
First, we need to sketch the region and the line of rotation:
| +---------+
8 | | |
| | |
| +---------+ x=9
|
0 +---------------+
0 4 8
The region is a rectangle with height 4 and width 8, centered at the origin. The line of rotation is x=9.
Now, we can express the volume of the solid as a sum of cylindrical shells:
V = ∫[0,4] 2πr h dx
where r is the distance between x=9 and the boundary of the region at height x, and h is the thickness of the shell.
Since the region is symmetric about the y-axis, we can consider only the right half of the region and multiply the result by 2 to get the total volume.
The equation of the boundary at height x is:
2 = -2y
y = -x/2
The distance between x=9 and this line is:
r = 9 - (-x/2) = 9 + x/2
The thickness of the shell is dx.
Substituting these values into the integral, we get:
V = 2 ∫[0,4] 2π(9 + x/2) dx
V = 2π ∫[0,4] (18 + x) dx
V = 2π [18x + (1/2)[tex]x^2[/tex]] from x=0 to x=4
V = 2π [(18*4 + (1/2)[tex]4^2[/tex]) - (180 + (1/2)*[tex]0^2[/tex])]
V = 64π ≈ 201.06
Therefore, the volume of the solid obtained by rotating the region about the line x=9 is approximately 201.06 cubic units.
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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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You want to estimate the number of people in a grocery store who buy milk. which sample is unbiased?group of answer choices70 shoppers at random as they leave the store8 shoppers as they enter the store60 women with children at random80 shoppers in the dairy section at random
80 shoppers in the dairy section at random is a biased sample (d).
To estimate the number of people who buy milk in a grocery store, we need an unbiased sample that represents the entire population. The options provided are 70 shoppers at random as they leave the store, 8 shoppers as they enter the store, 60 women with children at random, and 80 shoppers in the dairy section at random.
The most unbiased sample is selecting 80 shoppers in the dairy section at random because the dairy section is where people are most likely to buy milk, and selecting a random sample of shoppers in that section ensures that we are not introducing any biases.
The other options may introduce biases since they are not necessarily representative of the entire population of shoppers in the store. Therefore, selecting 80 shoppers in the dairy section at random provides the most unbiased estimate of the number of people who buy milk in the grocery store. So d is correct option.
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Identify the name of the shape. prove with the explanation.
Identify the parent function for g(x) = (x + 3)^2 and describe the transformation.
The resulting graph of g(x) will resemble the graph of f(x), but it will be stretched vertically and pushed leftward by three units.
What is function?Each element of a set (referred to as the domain) is mapped by a rule known as a function to a particular element of this other set (called the range). A function is, in other words, a connection between two subsets in which every member of the domain has a unique relationship to every element of the range. One popular approach to write a function is via function notation, which entails writing the function name surrounded by the incoming signal in parentheses, as in the following example: f (x). For instance, the formula f(x) = 2x + 1 takes the input x and produces the result 2x + 1.
given,
The fundamental quadratic function f(x) = x² serves as the parent function for g(x) = (x + 3)².
Since the argument of the function (x + 3) is x shifted left by 3 units, the graph of f(x) is horizontally displaced to the left by 3 units.
Given that the coefficient of the squared term is 1, the graph of the resulting function is shifted up by a factor of 1.
As a result, the transformation can be represented as a 3 unit horizontal shift and a 1 unit vertical stretch.
The resulting graph of g(x) will resemble the graph of f(x), but it will be stretched vertically and pushed leftward by three units.
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Find two vectors in opposite directions that are orthogonal to the vector u.
u = 1/4 i - 4/5j
Two vectors in opposite directions that are orthogonal to u are v = 5i + 4j and w = -4i + 5j.
To find two vectors in opposite directions that are orthogonal to u, we need to use the cross product. The cross product of two vectors is a vector that is perpendicular to both of them. We can choose any two non-collinear vectors as long as they are orthogonal to each other and the given vector.
Let's find the cross product of u and a vector v. The cross product of two vectors a and b is given by:
a x b = |a| |b| sinθ n
where |a| and |b| are the magnitudes of the vectors, θ is the angle between them, and n is a unit vector perpendicular to both a and b in the direction given by the right-hand rule.
Since we want v to be orthogonal to u, we need to choose v such that u x v = 0. This means that the angle between u and v is either 0 or 180 degrees, and |v| is arbitrary.
Let v = 5i + 4j. Then, we have:
u x v = (1/4 i - 4/5j) x (5i + 4j)
= (-16/20)i - (5/20)j + (1/20)k
= (-4/5)i - (1/4)j + (1/20)k
Since u x v is not equal to zero, v is not orthogonal to u. To find another vector that is orthogonal to u, we can take the cross product of u and w, where w = -4i + 5j. Then, we have:
u x w = (1/4 i - 4/5j) x (-4i + 5j)
= (-5/20)i + (16/20)j + (1/20)k
= (-1/4)i + (4/5)j + (1/20)k
Since u x w is also not equal to zero, we need to adjust the signs of v and w to make them orthogonal to u. We can do this by taking the opposite of v and w. Therefore, two vectors in opposite directions that are orthogonal to u are v = 5i + 4j and w = -4i + 5j.
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25 points help asap
will mark brainiest
select the correct answer from each drop-down menu.
a lake currently has a depth of 30 meters. as sediment builds up in the lake, its depth decreases by 2% per year
this situation represents _____
the rate of growth or decay,r, is equal to _____
so the depth of the lake each
year is ______ times the depth in the previous year,
it will take between _____
years for the depth of the lake to reach 26. 7 meters
It will take approximately 5.28 years for the depth of the lake to reach 26.7 meters.
How to find the lake depth decay?The situation represents decay because the depth of the lake decreases over time.
The rate of growth or decay, r, is equal to -0.02 (negative because it represents a decrease of 2% per year).
So the depth of the lake each year is 0.98 times the depth in the previous year (100% - 2% = 98%).
To find the number of years it will take for the depth of the lake to reach 26.7 meters, we can use the formula for exponential decay:
26.7 = 30 *[tex](0.98)^n[/tex]
Solving for n, we get:
[tex](0.98)^n = \frac{26.7 }{ 30}[/tex]
n =[tex]log\frac{(\frac{26.7}{30}) }{ log(0.98)}[/tex]
Using a calculator, we find n ≈ 5.28 years.
Therefore, it will take approximately 5.28 years for the depth of the lake to reach 26.7 meters.
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A rocket is launched upward. Its height h (t) in feet after t seconds, is modeled by the function h (t)=80t-16t^2.
which is the domain of h(t)?
A all real numbers greater than 0
B all real numbers greater than 0 and less than 5
C all real numbers greater than 0 and less than 16
D all real numbers greater than 0 and less or equal to 5
E all real numbers greater than 0 and less than or equal to 16â
The domain of a function is the set of all possible inputs for the function. In this case, the function is h(t)=80t-16t². Since time cannot be negative, the domain of h(t) is all real numbers greater than 0. Then, required answer for the provided question is Option A.
To evaluate the maximum height reached by the rocket, now to calculate the derivative of the function h(t)=80t-16t² and set it equal to zero.
This will provide the time at which the rocket reaches its maximum height. Therefore, here we can place time back into the original function to evaluate the maximum height.
h(t)=80t-16t²
h'(t)=80-32t
0=80-32t
32t=80
t=2.5 seconds
Then the rocket touches its maximum height after 2.5 seconds.
To evaluate the maximum height, place t=2.5 into h(t):
h(2.5)=80(2.5)-16(2.5)²
=100 feet
Hence, the maximum height touched by the rocket is 100 feet.
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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
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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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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Pls help I don’t get how to do this
Answer:
Step-by-step explanation:
explanation in image
use 3.14 to approximate pi the options are
a) 32
b) 49.12
c) 36.56
d)25.12
e) 41.12
f ) 10.21
Answer:
E
Step-by-step explanation:
This figure contains a square and a quarter of a circle
The perimeter is the sum of all side lengths
Let's find the circumference of the quarter of a circle:
[tex]0.25c = 2\pi \times r[/tex]
The diameter is equal to a square's side length:
d = 8
hence, r = 0,5 × 8 = 4
[tex]0.25c = 2 \times 3.14 \times 4 = 25.12[/tex]
Now, we can find the perimeter:
P = 25,12 + 8 + 8 = 41,12
In a shop where all items cost a whole number of dollars, I bought 3 packets of plain biscuits and 5 packets of chocolate biscuits. The total cost was $34. Harold says, ‘The packets of chocolate biscuits must have cost $2 each. Show that Harold is wrong
To show that Harold is wrong about the cost of chocolate biscuits being $2 each, we can use the given information:
You bought 3 packets of plain biscuits and 5 packets of chocolate biscuits, and the total cost was $34.
Let's use the variables P for the cost of plain biscuits and C for the cost of chocolate biscuits.
We can write the equation:
3P + 5C = $34
Harold claims that the cost of chocolate biscuits is $2 each. So, let's substitute C = $2 into the equation:
3P + 5($2) = $34
Now, we can solve for P:
3P + $10 = $34
3P = $24
P = $8
So, the cost of plain biscuits is $8 each. This means you bought 3 packets of plain biscuits for $24 and 5 packets of chocolate biscuits for $10, which adds up to the total cost of $34.
Since the cost of plain biscuits came out to be a whole number, Harold's claim that chocolate biscuits cost $2 each is not necessarily wrong.
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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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for each of these relations on the set {1,2,3,4}, decide whether it is reflexive, whether it is symmetric, and whether it is transitive. Which of these relations are equivalence relations?(a) {(2,2),(2,3),(2,4),(3,2),(3,3),(3,4)}. (b) {(1,1),(1,2),(2,1),(2,2),(3,3),(4,4)}. (c) {(2,4),(4,2)}.
The relation is not an equivalence relation. (a) {(2,2),(2,3),(2,4),(3,2),(3,3),(3,4)}:
Reflexive: (2,2), (3,3) are present, but (1,1) and (4,4) are not present. Hence, not reflexive.
Symmetric: (2,3) is present, but (3,2) is also present. Hence, not symmetric.
Transitive: No counterexample to transitivity exists. Hence, it is transitive.
Therefore, the relation is not an equivalence relation.
(b) {(1,1),(1,2),(2,1),(2,2),(3,3),(4,4)}:
Reflexive: (1,1), (2,2), (3,3), (4,4) are present. Hence, reflexive.
Symmetric: (1,2) is present, but (2,1) is also present. Hence, symmetric.
Transitive: No counterexample to transitivity exists. Hence, it is transitive.
Therefore, the relation is an equivalence relation.
(c) {(2,4),(4,2)}:
Reflexive: (2,2) and (4,4) are not present. Hence, not reflexive.
Symmetric: (2,4) is present, but (4,2) is not present. Hence, not symmetric.
Transitive: No counterexample to transitivity exists. Hence, it is transitive.
Therefore, the relation is not an equivalence relation.
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For each problem, determine what will happen to the first factor.
10x1/2
15 x 7/2
Answer:
52.5
Step-by-step explanation:
15×7=105÷2
=52.5 ans it means fifteen times seven divided by two
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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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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Andrew invests $500 into an account with a 2. 5% interest rate that is compounded quarterly. How much money will he have in this account if he keeps it for 5 years?
Round your answer to the nearest dollar
He will have $566 in this account if he keeps it for 5 years.
How to determine how much money he will have in this account?To determine how much money he will have in this account if he keeps it for 5 years, we can use the compound interest formula:
A = P(1 + r/n)^(nt)
Where:
A = the final amount
P = the principal, $500
r = the interest rate, 2.5% = 0.025
n = the number of times the interest is compounded per year, in this case quarterly (n = 4)
t = the time period in years, 5
Substituting the values :
A = 500(1 + 0.025/4)^(4 * 5)
A = 500(1 + 0.00625)²⁰
A = 500(1 .00625)²⁰
A = $566
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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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Regina writes the expression y + 9 x 3/4. Which expression is equivalent to the one Regina writes?
The expression that is equivalent to the one Regina wrote is y + 27/4
Which expression is equivalent to the one Regina wrote?From the question, we have the following parameters that can be used in our computation:
y + 9 x 3/4
This means that
Expression = y + 9 x 3/4
When expanded, we have
Expression = y + 27/4
Using the above as a guide, we have the following:
The expression that is equivalent to the one Regina wrote is y + 27/4
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What is the amount of carrying charges for a $10,000 for college if there is a 5% down payment, apr of 10%, and a 36-month repayment period?
The amount of carrying charges for a $10,000 college loan with a 5% down payment, a 10% APR, and a 36-month repayment period is approximately $1,571.44.
To calculate the amount of carrying charges for a $10,000 college loan with a 5% down payment, a 10% annual percentage rate (APR), and a 36-month repayment period, follow these steps:
1. Determine the down payment: 5% of $10,000 = $500.
2. Subtract the down payment from the loan amount: $10,000 - $500 = $9,500. This is the principal loan amount.
3. Calculate the monthly interest rate: 10% APR / 12 months = 0.833% or 0.00833 as a decimal.
4. Calculate the monthly payment using the loan payment formula: P = r * PV / (1 - (1 + r)⁻ⁿ), where P is the monthly payment, r is the monthly interest rate, PV is the present value (principal loan amount), and n is the number of monthly payments. P = 0.00833 * $9,500 / (1 - (1 + 0.00833)⁻³⁶) = $307.54.
5. Determine the total amount paid over the loan term: Monthly payment * Number of monthly payments = $307.54 * 36 = $11,071.44.
6. Calculate the carrying charges: Total amount paid - Principal loan amount = $11,071.44 - $9,500 = $1,571.44.
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PLS HELP! LAST QUESTION!
I WILL MAKE U BRAINLIST AND I NEED THIS!
PLS USE A DESMOS CALCULATOR AND SHOW ALL STEPS! I NEED IT.
Answer:
8.19 units.
Step-by-step explanation:
I didn't use desmos, i completed the question with all steps and working and didn't require desmos. Hope this Helps. Question was solved using trignometric ratios.
Six friends are selling crafts at a flea market. they each need to pay $7. 20 to pay
for the table rental. they each sell 3 items. if every item is the same price, and the
6 friends make a total profit of $25. 20, what was the sale price of each item?
To find the sale price of each item, we need to use some basic algebra. Let's call the sale price of each item "x".
First, we need to find the total cost of the table rental for all six friends. Since each friend needs to pay $7.20, the total cost of the table rental is 6 * $7.20 = $43.20.
Next, we need to find the total revenue from selling the items. Each friend sells 3 items, so the total number of items sold is 6 * 3 = 18. The total revenue is the number of items sold multiplied by the sale price, so the total revenue is 18x.
We know that the total profit is $25.20, which is the total revenue minus the total cost of the table rental. So we can set up the equation:
18x - $43.20 = $25.20
Simplifying this equation, we get:
18x = $68.40
Dividing both sides by 18, we get:
x = $3.80
Therefore, the sale price of each item is $3.80.
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Haz la ecuación y la verificación según los datos que dan. 5. Un padre tiene 35 años y su hijo 5. ¿Al cabo de cuántos años será la edad del padre tres veces mayor que la edad del hijo?
6. Si al doble de un número se le resta su mitad resulta 54. ¿Cuál es el número?
7. En una reunión hay doble número de mujeres que de hombres y triple número de niños que de hombres y mujeres juntos. ¿Cuántos hombres, mujeres y niños hay si la reunión la componen 96 personas?
8. Una granja tiene cerdos y pavos, en total hay 35 cabezas y 116 patas. ¿Cuántos cerdos y pavos hay?
ccabo de 25 años será la edad del padre tres veces mayor que la edad del hijo.El número es 36.Hay 8 hombres, 16 mujeres y 72 niños.Hay 27 cerdos y 8 pavos
How many years will it take for the father's age to be three times the age of his son?Sea x el número de años transcurridos. La edad del padre será 35 + x y la edad del hijo será 5 + x. La ecuación que representa la situación es: 35 + x = 3(5 + x). Resolviendo la ecuación, tenemos:
35 + x = 15 + 3x
2x = 20
x = 10
Por lo tanto, después de 10 años, la edad del padre será tres veces mayor que la edad del hijo.
Sea x el número desconocido. La ecuación que representa la situación es: 2x - (1/2)x = 54. Resolviendo la ecuación, tenemos:
(4/2)x - (1/2)x = 54
(3/2)x = 54
x = 36
Por lo tanto, el número desconocido es 36.
Sea x el número de hombres. Según la información dada, el número de mujeres es el doble, es decir, 2x, y el número de niños es el triple, es decir, 3(x + 2x) = 9x. La ecuación que representa la situación es: x + 2x + 9x = 96. Resolviendo la ecuación, tenemos:
12x = 96
x = 8
Por lo tanto, hay 8 hombres, 16 mujeres y 72 niños en la reunión.
Sea x el número de cerdos y y el número de pavos. Según la información dada, tenemos las siguientes ecuaciones: x + y = 35 (por el total de cabezas) y 4x + 2y = 116 (por el total de patas). Resolviendo este sistema de ecuaciones, obtenemos:
x + y = 35
4x + 2y = 116
Multiplicamos la primera ecuación por 2:
2x + 2y = 70
Restamos la segunda ecuación de la primera:
2x + 2y - (4x + 2y) = 70 - 116
-2x = -46
x = 23
Sustituyendo el valor de x en la primera ecuación, tenemos:
23 + y = 35
y = 12
Por lo tanto, hay 23 cerdos y 12 pavos en la granja.
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What are the zeros of the function y = (x − 4)(x2 − 12x + 36)
The zeros of the function y = (x − 4)(x² − 12x + 36) are 4 and 6.
To find the zeros of the function y = (x - 4)(x² - 12x + 36), we need to set y to zero and solve for x.
0 = (x - 4)(x² - 12x + 36)
Now, solve for each factor separately:
1) x - 4 = 0
x = 4
2) x² - 12x + 36 = 0
This is a quadratic equation, and we can factor it as (x - 6)(x - 6).
So, x - 6 = 0
x = 6
The zeros of the function are x = 4 and x = 6. The zeros of a function are the values of its variables that meet the equation and result in the function's value being equal to 0.
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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."
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
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
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.