Answer:
jackie has 4carrot and 5 tomato worth 25$
dylan used a styrofoam cone to make a floral arrangement. the cone had a radius of 4.5 inches and a height of 6 inches. what is the volume of this cone? (round your answer to the nearest tenth.)
The volume of this cone is approximately 127.2 cubic inches
Hi! To calculate the volume of the Styrofoam cone used by Dylan to make a floral arrangement, we can use the formula for the volume of a cone: V = (1/3)πr²h. The cone had a radius of 4.5 inches and a height of 6 inches.
Substituting these values into the formula, we have:
V = (1/3)π(4.5)²(6)
V ≈ 127.2 cubic inches (rounded to the nearest tenth).
So, the volume of this cone is approximately 127.2 cubic inches.
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Ben completely filled his 20-gallon tank of gas with regular fuel for $59. 80 as he left the gas station he noticed the gas station across the street sold regular fuel for $2. 84 a gallon how much money could ben have saved per gallon if he had gone to the gas station across the street
Ben could have saved $0.15 per gallon if he had gone to the gas station across the street.
If Ben filled his 20-gallon tank of gas with regular fuel for $59.80, then the cost per gallon can be found by dividing the total cost by the number of gallons:
cost per gallon = total cost / number of gallons
cost per gallon = $59.80 / 20 gallons
cost per gallon = $2.99/gallon
If the gas station across the street sold regular fuel for $2.84 a gallon, then the amount Ben could have saved per gallon is:
savings per gallon = cost per gallon at initial station - cost per gallon at other station
savings per gallon = $2.99/gallon - $2.84/gallon
savings per gallon = $0.15/gallon
Therefore, Ben could have saved $0.15 per gallon if he had gone to the gas station across the street.
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Simplify to create an equivalent expression. {2(-2-4p)+2(-2p-1)}2(−2−4p)+2(−2p−1)
4(-2 - 4p) + 4(-2p - 1)
How can the expression {2(-2-4p)+2(-2p-1)} be simplified?To simplify the expression {2(-2-4p)+2(-2p-1)}, we can distribute the coefficients and simplify the terms.
First, let's distribute the coefficient of 2 to the terms inside the first parentheses: 2 * -2 = -4 and 2 * -4p = -8p.
Next, distribute the coefficient of 2 to the terms inside the second parentheses: 2 * -2p = -4p and 2 * -1 = -2.
Now, we have:
{-4 - 8p + (-4p - 2)}
Next, combine like terms within the parentheses:
{-4 - 8p - 4p - 2}
Simplifying further:
{-6 - 12p}
Therefore, the simplified equivalent expression for {2(-2-4p)+2(-2p-1)} is -6 - 12p.
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A group of students collected old newspapers for a recycling project. The data shows the mass, in kilograms, of old newspapers collected by each student.
23, 35, 87, 64, 101, 90, 45, 76, 105, 60, 55
98, 122, 49, 15, 57, 75, 120, 56, 88, 45, 100.
What percent of students collected between 49 kilograms and 98 kilograms of newspapers? Explain how you got to your solution
To find the percentage of students who collected between 49 and 98 kilograms of newspapers, we need to first count the number of students whose collection falls within this range. We can do this by sorting the data and counting the number of values that fall within this range.
Sorting the data, we get:
15, 23, 35, 45, 45, 49, 55, 56, 57, 60, 64, 75, 76, 87, 88, 90, 98, 100, 101, 105, 120, 122
We can see that there are 17 students whose collection falls within the range of 49 to 98 kilograms.
To find the percentage of students, we can divide the number of students whose collection falls within this range by the total number of students and then multiply by 100. The total number of students is the sum of the number of values in the two sets, which is 22 + 22 = 44.
Therefore, the percentage of students who collected between 49 and 98 kilograms of newspapers is:
17/44 * 100% ≈ 38.6%
So approximately 38.6% of the students collected between 49 and 98 kilograms of newspapers.
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Find the x- and y-intercepts of the graph of 4x+8y=20. State each answer as an integer or an improper fraction in simplest form
The cordinate points with x- and y-intercepts of the graph of a linear equation, 4x+ 8y = 20, are equals to the (5,0) and (0, 5/2).
We have an equation, 4x + 8y = 20 --(1) which is linear equation with two variables. We have to determine the the x- and y-intercepts of the graph of equation (1). The graph of line (1) is present in above figure. Slope intercept form of equation (1) is written as [tex]y = - \frac{1}{2}x + \frac{5}{2}[/tex],
The x-intercept is point where a line crosses the x-axis, and the y-intercept is the point where the line crosses the y-axis. As we know, two points determine any line, we can graph lines using the x- and y-intercepts. To determine the x-intercept, we substitute y=0 and solve for x. So, when y = 0 then 4x + 0 = 20
=> x = 5
similarly to determine the y-intercept, set x=0 and solve for y. When x = 0
=> 8y = 20
=> y = 5/2.
Hence, required value are (5,0) and (0,5/2).
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help me please i am not the smartest
Answer:
x=28
Step-by-step explanation:
Let the length of QR be 'x' cm.
(We will be using the chord theorem; the products of the lengths of the line segments on each chord are equal.)
Therefore,
PR x QR = NR x OR
13 x = 30 x 12
x= 360/13
x = 27.7
x = 28
Answer each one please 20 points! :3 and (brainly)
caden exercises daily by walking on a treadmill. he sets the machine so that he will walk at a steady rate of 3.6 miles per hour.
a. if t represents time in hours and d represents distance in miles, write an equation that models the relationship between these variables.-
b. use your equation to calculate the distance caden will walk in 3/4 of an hour.--
c. use your equation to calculate how long it will take for caden to walk 4.32 miles.--
answer each one please 20 points! :3 and (brainly)
a. If t represents time in hours and d represents distance in miles, and Caden walks at a steady rate of 3.6 miles per hour, the equation that models the relationship between these variables is:
d = 3.6t
b. To calculate the distance Caden will walk in 3/4 of an hour, plug 3/4 into the equation for t:
d = 3.6(3/4) = 2.7 miles
Caden will walk 2.7 miles in 3/4 of an hour.
c. To calculate how long it will take for Caden to walk 4.32 miles, plug 4.32 into the equation for d and solve for t:
4.32 = 3.6t
t = 4.32/3.6 ≈ 1.2 hours
It will take Caden approximately 1.2 hours to walk 4.32 miles.
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a,b,c are prime numbers.
Find a,b,c that sastify the equation: a^4 + b^4 + c^4 + 54 = 11abc
The prime number values of a, b and c that satisfy the equation a⁴ + b⁴ + c⁴ + 54 = 11abc are a = 3, b = 2, and c = 5.
Let's consider the equation a⁴ + b⁴ + c⁴ + 54 = 11abc. Due to the fact that the total of four even numbers is also even, the left-hand side is always even. As a result, since 2 is the only even prime, one of the factors a, b, or c must be 2 for 11abc to likewise be even.
Let's examine each instance,
Case 1: a = 2
Substituting a = 2 into the equation, we get,
16 + b⁴ + c⁴ + 54 = 22bc
b⁴ + c⁴ - 22bc + 38 = 0
Since b and c are primes, they must be odd. Let b = 3 and c = 5, we have,
3⁴ + 5⁴ - 2235 + 38 = 0
81 + 625 - 330 + 38 = 0
Case 2: b = 2
Substituting b = 2 into the equation, we get,
a⁴ + 16 + c⁴ + 54 = 22ac
a⁴ + c⁴ - 22ac + 70 = 0
Since a and c are primes, they must be odd. Let a = 3 and c = 5, we have,
3⁴ + 5⁴ - 2235 + 70 = 0
Case 3: c = 2
Substituting c = 2 into the equation, we get,
a⁴ + b⁴ + 16 + 54 = 22ab
a⁴ + b⁴ - 22ab + 70 = 0
However, for any odd number x, x⁴ mod 16 = 1, which means that a⁴ and b⁴ are both corrosponds to 1 mod 16. So, as the conclusion, a = 3, b = 2, and c = 5.
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If the cube is divided into two equal parts by a plane parallel to the face defined by vertices 2, 3, 6, and 7, what will be the area of the cross-section?
A.
48 sq cm
B.
256 sq cm
C.
16 sq cm
The area of the cross-section is 16 sq. cm. Thus, option C is the correct answer.
Vertices sides = 2, 3, 6, and 7
Divide part face = parallel to the face of vertices
It is given that a square face is present in the middle of the cube. The area of the cross-section of the cube results from the plane and cube intersection.
To find the distance between the square face of the cube and the length of the side:
distance = [tex]\sqrt{[(x^{2} - x1)^2 + (y^{2} - y1)^2 + (z^{2} - z1)^2]}[/tex]
we can use the coordinates of any two adjacent sides to find the distance.
distance = [tex]\sqrt{[(3-2)^2 + (3-2)^2 + (3-1)^2] }[/tex]
distance = [tex]\sqrt{11}[/tex]
To calculate the area of the face of the cube:
area = [tex]side^{2}[/tex]
area = [tex]\sqrt{(11)^2}[/tex]
area = 11
The area of the cross-section can be estimated as:
area = (1/2) x 11 x 4) + 5 vertices of plane
area = 16 sq. cm
Therefore we can infer that the area of the cross-section is 16 sq. cm
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Aura builds model airplanes. Her first model airplane is 4
feet long
She wants her next model airplane to be
4
as long as the first
How long will her next modhi airplane be?
1
ft
12
B
1
4
12
ft
7
4
12
ft
D
17
ft
The next model airplane will be 16 feet long.
How long will Aura's next model airplane be if she wants it to be four times as long as her first model airplane which is 4 feet long?To find the length of Aura's next model airplane, we need to multiply the length of her first model airplane by 4, since she wants the next one to be 4 times as long as the first. Therefore, the length of her next model airplane would be:
4 feet (length of first model airplane) x 4 = 16 feet
So, the length of her next model airplane would be 16 feet.
Note that this assumes that Aura's first model airplane is the baseline for measurement and that the "4" in the question refers to a factor of 4, not an additional 4 feet. If the question were interpreted differently, the answer may be different.
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Answer this following question
y = sin x + cos x / csc x
The expression equation y = sin x + cos x / csc x can be simplified to y = cos x sin^2 x + cos^2 x.
To simplify the expression, we can first replace csc x with 1/sin x. This gives us y = sin x cos x + cos^2 x / sin x.
Next, we can factor out cos x from the numerator of the second term to get y = cos x (sin x + cos x) / sin x.
Using the identity sin^2 x + cos^2 x = 1, we can replace sin^2 x with 1 - cos^2 x in the numerator of the first term. This gives us y = cos x (1 - cos^2 x) / sin x + cos x (sin x + cos x) / sin x.
Simplifying the expression further, we get y = cos x (1 - cos^2 x + sin x + cos x) / sin x.
Finally, we can combine the terms in the numerator to get y = cos x (sin^2 x + 2cos x sin x + 1) / sin x.
Using the identity sin^2 x = 1 - cos^2 x, we get y = cos x (3cos^2 x + 2cos x) / sin x.
Simplifying the expression, we arrive at y = cos x (cos x + 2) (3cos x + 2) / sin x.
Therefore, the simplified expression is y = cos x sin^2 x + cos^2 x, which can also be written as y = cos x (sin x)^2 + cos^2 x.
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what the root of this question?
Answer:
[tex] \sqrt{125 {p}^{2} } = p \sqrt{25} \sqrt{5} = 5p \sqrt{5} [/tex]
D is the correct answer.
There are ten slips of paper in a box, each numbered 1-10. If Gerard reaches into the box without looking, what is the probability that he will get a number less than 3?
69 ptssssssss
Answer: 1/5
Step-by-step explanation:
There are 10 slips of paper.
The only numbers less than three are 1 and 2
The probability that he will pick up a slip of paper less than three is 2 since only 1 and 2 are less than three.
Therefore the probability is 2/10, and when simplified, it is 1/5.
Therefore the answer is 1/5.
If you have any more questions feel free to ask in the comments! I'd be happy to help!
Talia has a $4,000 auto loan. Noah has a credit card with a $4,000 credit line. How will their payments differ? Talia’s payments will not include interest, while Noah’s payments will. Talia will be able to skip some payments, while Noah will have a required minimum. Talia’s payment requires the total balance all at once, while Noah’s payment will have monthly bills. Talia will have a set amount due, while Noah will have a minimum monthly payment that could change
Talia's auto loan and Noah's credit card payments will differ in terms of interest and payment structure.
How to solveTalia will have a set monthly payment without interest, whereas Noah will have a minimum monthly payment with interest.
Talia's payments are fixed and cannot be skipped, while Noah's minimum payment may vary depending on the balance.
In summary, Talia has a predetermined repayment plan, while Noah's payments depend on credit card usage and may fluctuate.
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Talia will have a set amount due, while Noah will have a minimum monthly payment that could change. The Option D is correct.
What are the payment differences between them?Assuming Talia and Noah have the same interest rate and payment terms:
Talia's payment will be a fixed amount that includes both principal and interest and is due at regular intervals until the loan is paid off.Noah's payment will be a minimum amount due each month which may include interest charges and remaining balance can be carried over with additional interest charges.Therefore, Noah has the option to pay more than the minimum amount due but is not required to do so.
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Pentagon on a coordinate plane. will this be a function, relation, function and relation, or neither relation nor function?
A Pentagon on a coordinate plane would be neither a relation nor a function.
This is because it does not have a unique output for every input, which is a requirement for a function. This is because a function must have a unique output for each input, while a pentagon may have multiple points (outputs) for a given x-coordinate (input) due to its shape. Additionally, it does not satisfy the vertical line test, which is a requirement for a relation. Therefore, it is not a relation or a function.
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The length of the radius of a sphere is 6 inches. The length of the radius of a cone is 3 inches, and the height is 7 inches. What is the difference between the volume of the sphere and the volume of the cone?
The difference between the volume of the sphere and the volume of the cone is approximately 838.81 cubic inches.
The volume of a sphere is given by the formula V = (4/3)πr³, where r is the radius. Thus, for a sphere with a radius of 6 inches, the volume is:
V_sphere = (4/3)π(6³) = 904.78 cubic inches
The volume of a cone is given by the formula V = (1/3)πr[tex]^{2h}[/tex], where r is the radius and h is the height. Thus, for a cone with a radius of 3 inches and a height of 7 inches, the volume is:
V_cone = (1/3)π(3²)(7) = 65.97 cubic inches
Therefore, the difference between the volume of the sphere and the volume of the cone is:
V_sphere - V_cone = 904.78 - 65.97 = 838.81 cubic inches
Hence, the difference between the volume of the sphere and the volume of the cone is approximately 838.81 cubic inches.
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"verify (1,4) is in point of √xy = x^2y − 2, also find
its tangent line to this point"
The equation of the tangent line to the curve at (1,4) is: y = 8x - 4
To verify whether the point (1,4) is on the curve [tex]\sqrt{xy}= x^2y - 2,[/tex]
We can substitute x=1 and y=4 into the equation and see if it is satisfied:
√(14) = 1^24 - 2
2 = 2
Since the equation is true, (1,4) is on the curve.
To find the tangent line to the curve at the point (1,4),
We need to find the derivative of the equation with respect to x and evaluate it at x=1:
[tex]\sqrt{xy} = x^2y - 2[/tex]
Differentiating with respect to x:
[tex](1/2)(x^{(-1/2))}(y) + (1/2)(y^{(-1/2))}(x) = 2xy[/tex]
Simplifying and evaluating at x=1, y=4:
[tex]2 + (1/2)(4^{(-1/2))(1)} = 8[/tex]
The slope of the tangent line is 8.
Using point-slope form, the equation of the tangent line to the curve at (1,4) is:
y - 4 = 8(x - 1)
y = 8x - 4
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(please help no links please)
the unit cube is divided into identical rectangular prisms. what is the volume of one of the identical prisms?
The volume of the unit cube is 1 cubic unit, and since it is divided into identical rectangular prisms, each of those prisms has the same volume. Therefore, the volume of one of the identical prisms is also 1 cubic unit.
What is the volume of one of the identical rectangular prisms obtained by dividing a unit cube?A unit cube has side lengths of 1 unit each, so its volume is simply 1 cubic unit. When the unit cube is divided into identical rectangular prisms, it means that each rectangular prism has the same volume as the unit cube, which is 1 cubic unit. Therefore, the volume of one of the identical prisms is 1 cubic unit.Learn more about unit cube
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(c) Give a specific example of a rule for the function f such that the series Σα) f(n)/n^2does not converge. You must justify your answer.
One specific example of a rule for the function f such that the series Σα) f(n)/n^2 does not converge is the function f(n) = (-1)^n.
To justify this, we can use the alternating series test, which states that if a series has alternating signs and the absolute values of its terms decrease monotonically to 0, then the series converges. However, if the absolute values of its terms do not decrease monotonically to 0, then the series diverges.
In this case, we have Σα) f(n)/n^2 = Σα) (-1)^n/n^2. The absolute value of each term is 1/n^2, which does decrease monotonically to 0. However, the signs of the terms alternate, meaning that the series does not converge. Therefore, this is a valid example of a rule for the function f such that the series Σα) f(n)/n^2 does not converge.
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a ferris wheel has a diameter of 54 ft. the point o is the center of the wheel. after the wheel has turned a 9 ft distance d, the point p moves to a new point marked q below. what is the measure of the angle 0 in radians
The angle measure is given as follows:
θ = 1/3 radians.
What is the measure of the circumference of a circle?The circumference of a circle of radius r is given by the equation presented as follows:
C = 2πr.
The radius is half the diameter, hence it is given as follows:
r = 27 ft. (half the diameter).
Hence the circumference is given as follows:
C = 54π cm.
The fraction represented by a distance of 9 ft is given as follows:
9/54π = 1/6π
The entire circumference is of 2π units, hence the angle is given as follows:
1/(6π) x 2π = 1/3 radians.
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what is the shape of the graph is called?
Answer:
parabola
Step-by-step explanation:
The graph shape is a parabola, opens-up type
Recommendations for safely thawing frozen turkey are provided on the packaging.
a. What is the thaw rate of the turkey for refrigerator thawing?
For cold water thawing?
b. What could the initial value represent?
c. Write a linear function in the form y = mx + b to model the time t, in hours, it takes to thaw turkey in the refrigerator as a function of the weight w, in pounds, of the turkey.
a. The thaw rate of the turkey for refrigerator thawing is day(s) per pound.
(simplify your answer.)
(1) it takes about 10 hours to thaw a 20-pound turkey in cold water.(2) it takes an additional 0.25 hours (or 15 minutes) to thaw in the refrigerator.
What is a linear function and examples?A linear function is a function that represents a straight line in the coordinate plane. For example, y = 3x - 2 represents a straight line in the coordinate plane and thus a linear function. Since y can be replaced by the function f(x), this function can be written as f(x) = 3x - 2.
a. A typical thawing rate when thawing in the refrigerator is about 1 day per 4-5 kilograms of turkey meat. So if you have a 20 pound turkey, it will take about 4-5 days to thaw in the fridge. In cold water, the thawing rate is about 30 minutes per pound, so it takes about 10 hours to thaw a 20-pound turkey in cold water.
b) The initial value may represent the weight of the frozen turkey before thawing begins. c. Let y be the time it takes to thaw the turkey in hours and let x be the weight of the turkey in pounds. Assuming a linear relationship between melting time and weight, we can write:
y = mx + b
where m is the thaw rate (in hours per pound) and b is the intercept (the time it takes to thaw a 0-pound turkey, which is 0). From part a, we know that the refrigerator thaw rate is about 1 day per 4-5 pounds of turkey, or about 0.25-0.2 hours per pound. So we can use m = 0.25 in our linear function:
y = 0.25x + 0
This means that for every additional pound of turkey, it takes an additional 0.25 hours (or 15 minutes) to thaw in the refrigerator.
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What is the image of (5,−4) after a dilation by a scale factor of 4 centered at the origin?
The image of (5,−4) after a dilation by a scale factor of 4 centered at the origin is (20,−16)
What is the image after a dilation centered at the origin?From the question, we have the following parameters that can be used in our computation:
Point = (5,−4)
Scale factor of 4 centered at the origin
The image after a dilation centered at the origin is
Image = Point * Scale factor
Substitute the known values in the above equation, so, we have the following representation
image = (5,−4) * 4
Evaluate
image = (20,−16)
Hence, the image after a dilation centered at the origin is (20,−16)
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PLEASE HELP EM I WIL GIVE BRAINLIEST TO THE FIRST CORRECT ANSWER EHLP ME FAST PLEASE
[tex]a = \sqrt{ {8}^{2} - {6}^{2} } \\ \\ = \sqrt{64 - 36 }\\ \\ =\sqrt{ 28} \\ \\ = \sqrt{4 \times 7} \\ \\ = 2 \sqrt{7} [/tex]
Information into an equation and solve the
equation
The sum of a number n and 11 is equal to 25. Find the number n
The resultant equation is n + 11 = 25 and the number n is 14.
Algebraic equation:
An algebraic equation is a mathematical statement that equates two expressions using one or more variables. Solving a single variable equation can be done by adding or subtracting the same integer on both sides. Similarly multiplying or dividing by the same integer.
The information we have
The sum of a number n and 11 is equal to 25.
The statement can represent an equation and solve for n as follows
Here sum of two numbers indicates adding
Hence, n + 11 = 25
To solve for n, isolate n on one side of the equation.
This can be done by subtracting 11 from both sides of the equation:
=> n + 11 - 11 = 25 - 11
=> n = 14
Therefore,
The resultant equation is n + 11 = 25 and the number n is 14.
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ET Previous Problem S NOX (1 point) According to U.S. postal regulations, the girth plus the length of a parcel sent by mail may not exceed 10 inches, where by "girth" we mean the perimeter of the smallest end. What is the largest possible volume of a rectangular parcel with a square end that can be sent by mait? Such a package is shown below. Assume 7 What are the dimensions of the package of largest volume? Х х Find a formula for the volume of the parcel in terms of x and y Volume The problem statement tells us that the parcel's girth plus longth may not exceed 108 inches. In order to maximize volume, we assume that we will actually need the girth plus longth to equal 108 inches. What equation does this produce involving randy Equation: It Solve this equation for y in terms of an Find a formula for the volume V (w) in terms of e. V(x) HH What is the domain of the function V7 Note that both and y must be positive consider how the constraint that girth plus length is 10 inches limit the possible values for Give your answer using interval notation Domain Find the absolute maximum of the volume of the parcel on the domain you established above and hence also determine the dimensions of the box of greatest volume Maximum Volume II Optimal dimensions = !!! andy 11
The dimensions of the package of largest volume are 18 inches by 18 inches by 36 inches. The largest possible volume is 11664 cubic inches.
How we find dimension?To find the dimensions of the package of largest volume. Let the dimensions of the square end be x, and the length of the rectangular end be y. The girth of the package is 4x, and the length is y. According to the problem statement, the girth plus length may not exceed 108 inches, so we have:
4x + y = 108We want to maximize the volume V(x,y) of the package, which is given by:
[tex]V(x,y) = x^2y[/tex]We can use the equation 4x + y = 108 to express y in terms of x:
y = 108 - 4xSubstituting this into the formula for V(x,y), we get:
[tex]V(x) = x^2(108 - 4x) = 108x^2 - 4x^3[/tex]The domain of V(x) is determined by the constraints that x and y must be positive and the girth plus length may not exceed 10 inches. Since the girth is 4x, we have:
4x + y = 108 - 3x ≤ 10Solving for x, we get:
x ≤ 32/3Since x must be positive, the domain of V(x) is:
0 < x ≤ 32/3The maximum volume and the optimal dimensions
To find the absolute maximum of V(x) on the domain 0 < x ≤ 32/3, we take the derivative of V(x) with respect to x and set it equal to zero:
[tex]V'(x) = 216x - 12x^2 = 0[/tex]
Solving for x, we get:
x = 18To confirm that this is a maximum, we take the second derivative of V(x) with respect to x:
V''(x) = 216 - 24xAt x = 18, we have V''(18) = 0, which means that the second derivative test is inconclusive. However, we can see that V(x) is increasing on the interval 0 < x < 18 and decreasing on the interval 18 < x ≤ 32/3, which means that x = 18 is indeed the absolute maximum of V(x) on the domain.
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Quinn is a budding fashion designer known for incorporating geometry into her creations. Her newest design is a simple black blouse patterned with same-size right triangles in different funky colors. The longer leg of each right triangle will be twice as long as the shorter leg, and the hypotenuse of each triangle will be 6 inches long. To the nearest tenth of an inch, what will be the length of the shorter leg of each triangle?
To the nearest tenth of an inch, the length of the shorter leg of each right triangle will be 2.7 inches.
What is the triangle?A triangle is a polygon with three sides and three angles. The sum of the three angles in a triangle always adds up to 180 degrees. There are many different types of triangles, including equilateral triangles (where all three sides are equal in length and all three angles are 60 degrees), isosceles triangles (where two sides are equal in length and two angles are equal in measure), and scalene triangles (where no sides are equal in length and no angles are equal in measure).
According to the given informationLet x be the length of the shorter leg of each right triangle. Then, the longer leg will be twice as long, so its length will be 2x. Using the Pythagorean theorem, we can write:
x² + (2x)² = 6²
Simplifying and solving for x, we get:
x² + 4x² = 36
5x² = 36
x² = 7.2
x ≈ 2.7
Therefore, to the nearest tenth of an inch, the length of the shorter leg of each right triangle will be 2.7 inches.
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TJ’s drawer has many loose socks: 5 gray, 5 black, and 6 white. If two socks are randomly pulled out without replacement, what is the probability that he pulls 2 white socks?
The probability of TJ pulling 2 white socks is 0.125 or 12.5%.
What is the probability that TJ pulls 2 white socks?There are 16 socks in total, so the probability of the first sock being white is 6/16.
Since we are not replacing the first sock, there are now 15 socks left, including 5 white socks.
So the probability of the second sock being white, given that the first sock was white, is 5/15.
To find the probability of both events occurring, we multiply the probabilities:
P(white and white) = P(white on first draw) × P(white on second draw, given that the first was white)
P(white and white) = (6/16) × (5/15)
P(white and white) = 1/8
So the probability of pulling 2 white socks is 1/8 or approximately 0.125.
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plss helpppssss
6 th grade math
Answer:
Step-by-step explanation:
By the figure, it would mean:
67, 67, 68
72, 72, 73, 76, 76, 77, 78
80, 81, 83, 83, 85, 85, 85, 87, 88
91, 91, 93, 95, 99
a) 2 students
b) 9 students
c) 2 students
Explanation : 5 students (90s) - 3 students (60s) = 2 students
d) 81
Explanation : (67 + 67 + 68 + 72 + 72 + 73 + 76 + 76 + 77 + 78 + 80 + 81 + 83 + 83 + 85 + 85 + 85 + 87 + 88 + 91 + 91 + 93 + 95 + 99) ÷ 24 = 81.33
Find the divergence and curl of the following vector fields. F(x, y,z) = 2y cos zi + eˣ sin zj + xe³'k.
The divergence of F is 2y cos(z) + eˣ cos(z) + 3xe³, and the curl of F is -eˣcos(z)i - 3xe³j + (eˣsin(z) + 2cos(z))k.
How to find the divergence and curl of the vector field F(x, y, z)?To find the divergence and curl of the vector field F(x, y, z) = 2y cos(z)i + eˣ sin(z)j + xe³k, we need to apply the appropriate operators.
The divergence of F is given by:
div F = ∇ · F = (∂/∂x)i + (∂/∂y)j + (∂/∂z)k · (2y cos(z)i + eˣ sin(z)j + xe³k)
where ∇ is the del operator.
Calculating the dot product, we get:
div F = 2y cos(z) + eˣ cos(z) + 3xe³
Therefore, the divergence of F is:
div F = 2y cos(z) + eˣ cos(z) + 3xe³
Now, let's find the curl of F. The curl of F is given by:
curl F = ∇ × F = ( (∂/∂y)(xe³) - (∂/∂z)(eˣsin(z)) )i - ( (∂/∂x)(2ycos(z)) - (∂/∂z)(xe³) )j + ( (∂/∂x)(eˣsin(z)) - (∂/∂y)(2ycos(z)) )k
Calculating the partial derivatives, we get:
(∂/∂y)(xe³) = 0
(∂/∂z)(eˣsin(z)) = eˣcos(z)
(∂/∂x)(2ycos(z)) = 0
(∂/∂z)(xe³) = 3xe³
(∂/∂x)(eˣsin(z)) = eˣsin(z)
(∂/∂y)(2ycos(z)) = -2cos(z)
Substituting these values, we get:
curl F = (0 - eˣcos(z))i - (0 - 3xe³)j + (eˣsin(z) - (-2cos(z)))k
Simplifying, we get:
curl F = -eˣcos(z)i - 3xe³j + (eˣsin(z) + 2cos(z))k
Therefore, the divergence of F is 2y cos(z) + eˣ cos(z) + 3xe³, and the curl of F is -eˣcos(z)i - 3xe³j + (eˣsin(z) + 2cos(z))k.
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