Answer:
r = 42,32 ft
h = 84.8 ft
Step-by-step explanation:
We are going to apply Lagrange multipliers method
The greatest space means maximum volume
V(cage) = Vol. of the cylinder + volume of the hemisphere
V(cylinder ) = π*r²*h
V(sphere) = (4/3)*π*r² ⇒ V(hemisphere) = (2/3)*π*r³
V(cage) = π*r²*h + (2/3)*π*r³
Associated costs:
Costs = cost of cylinder + cost of hemisphere
Area of the cylinder = Lateral area ( no bottom no top)
Area of the cylinder = 2*π*r*h
Area of hemisphere = 2*π*r²
A(r,h) = 2*π*r*h + 2*π*r²
C(r , h ) = 10* 2*π*r*h + 20* 2*π*r² C(r , h ) = 20*π*r*h + 40*π*r²
4500 = 20*π*r*h + 40*π*r²
20*π*r*h + 40*π*r² - 4500 = 0 20*π*r*h + 40*π*r² - 4500 = g(r,h)
V(cage) = π*r²*h + (2/3)*π*r³
δV/δr = 2*r*π*h + 2*π*r² δg(r,h)/δr = 20*π*h + 80*π*r
δV/δh = π*r² δg(r,h)/δh = 20*π*r
δV/δr = λ* δg(r,h)/δr
2*r*π*h + 2*π*r² = λ* 20*π*h + 80*π*r
2*r*π* ( h + r ) = 20*π* λ* ( h + 4*r)
r* ( h + r ) = 10*λ* ( h + 4*r) (1)
δV/δh = λ* δg(r,h)/δh
π*r² = 20*λ*π*r r = 20*λ (2)
20*π*r*h + 40*π*r² - 4500 = 0 (3)
We need to sole the system of equation 1 ; 2 ; 3
r = 20*λ plugging that value in equation 1
20*λ ( h + 20*λ ) = 10*λ* ( h + 4*r)
2( h + 20*λ ) = ( h + 4*20*λ)
2*h + 40*λ = h + 80*λ
h = 40*λ
20*π*r*h + 40*π*r² - 4500 = 0
20*π*20*λ*40*λ + 40*π+400λ² - 4500 = 0
16000*π*λ² + 16000*π*λ² = 4500
32000*π*λ² = 4500
320*π*λ² = 4500
λ² = 4500/1004,8 λ² = 4.48 λ = 2.12
Then
r = 20* λ r = 42,32 ft
h = 40* λ h = 84.8 ft
Question 2 (Essay Worth 10 points)
(07.02 MC)
An equation is shown below:
3(2x - 7) = 3
Part A: How many solutions does this equation have? (4 points)
Part B: What are the solutions to this equation? Show your work.
Plzzzzzz help
Answer:
Part A: 1 solution
Part B:
3(2x-7)=3
6x-21=3
+21 +21
6x=24
/6 /6
x=4
Step-by-step explanation:
First you distribute 3(2x-7)=3 to 6x-21=3. Next you do inverse operations by adding 21 to both sides of the equation to get 6x=24. Finally you divide both sides by 6 to get x=4
5/12x6/15=30/180
How do I simplify?
Answer:
0.167
Step-by-step explanation:
if you divide 30/180 it will get you a decimal of 0.166666667 but if you were to divide 180 by 30 you will get 6
technecaly your answer would be 0.166666667 but you only take the first number in the decimal which is 0.1 then take six 0.16 then add the 7 0.167
that should end up being your answer if i did the math right
Answer:
Step-by-step explanation:
5/12 * 6/15 =30/180
1/6=1/6
which is true, Right-hand side is equal to left-hand side
What does 5^6 x 4=
.
Zzzzzzzzzz
whats the answer ?? ill mark brainliest
In a right triangle, one of the acute angles measures of degrees. What is the measure of the other acute angle?
A. 90-d
B. 90 d
C. 180-d
D. 180+d
The correct answer is A. 90 - d
Since the sum of all the angles in a triangle is 180° and one of the angle is 90° because the triangle is a right triangle. So the sum of the remaining angles is 90°.
And to find the other acute angle we use 90° - d.
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someone help me please!
Answer:
7/3
1
1/2
undefined
Step-by-step explanation:
1/1 ÷ 3/7 = 7/3 because you multiply the 1st fraction by the reciprocal of the 2nd
1/1 = 1
1/2 = 1/2
1/0 = undefined; anything divided by zero is considered to be undefined
Pilar has 40 shells in her collection. She goes to the beach. She collects 6 more shells in the morning and 3 more shells in the afternoon. What is the percent change in Pilar's shell collection from the beginning of the day to the end? Show your work.
The percent change in Pilar's shell collection from the beginning of the day to the end is, 22.5%
What is the percentage?Percentage is a way to express a number as a fraction of 100. It is often used to represent ratios and proportions in a more convenient and understandable form, especially in financial and statistical contexts. For example, 50% means 50 per 100, or half of a given quantity. It is denoted using the symbol "%".
Given that,
Pilar has 40 shells in her collection.
She collects 6 more shells in the morning and 3 more shells in the afternoon.
The percent change in Pilar's shell collection from the beginning of the day to the end = ?
At the beginning of the day, Pilar has 40 shells.
In the morning, she collects 6 more shells, bringing her total to
= 40 + 6
= 46 shells.
Then, in the afternoon, she collects 3 more shells, bringing her total to
=46 + 3
= 49 shells.
To find the percent change in Pilar's shell collection from the beginning of the day to the end, we can use the formula:
percent change = (final value - initial value) / initial value * 100%
Plugging in the values we have:
percent change = (49 - 40) / 40 x 100%
percent change = 9 / 40 x 100%
percent change = 22.5%
Therefore, there is a 22.5% increase in Pilar's shell collection from the beginning of the day to the end.
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) Is 38¢ the same thing as .38¢?
Answer: Yes
Step-by-step explanation:
38¢ is exactly the same as .38¢
Consider a sample with six observations of 15, 16, 12, 8, 6, and 9. Compute the z-scores for each sample observation.
Sample observation. z-scores
15
16
12
8
6
9
Answer:
1 ; 1.25 ; 0.25 ; - 0.75 ; - 1.25 ;- 0.5
Step-by-step explanation:
Given the sample observations : 15, 16, 12, 8, 6, 9
Zscore for each sample Observation :
Zscore = (x - mean) / standard deviation
(15 + 16 + 12 + 8 + 6 + 9) / 6 = 11
Mean value (m) = 11
Standard deviation (s) = 5
Sqrt[(x - m)^2 / (n - 1)]
[(15-11)^2 + (16-11)^2 + (12-11)^2 + (8-11)^2 + (6-11)^2 + (9-11)^2] / (6 - 1)
= 80/5 = 16
Sqrt(16) = 4
Zscore = (x - mean) / standard deviation
x = 15
Zscore = (15 - 11) / 4 = 1
x = 16
Zscore = (16 - 11) / 4 = 1.25
x = 12
Zscore = (12 - 11) / 4 = 0.25
x = 8
Zscore = (8 - 11) / 4 = - 0.75
x = 6
Zscore = (6 - 11) / 4 = - 1.25
x = 9
Zscore = (9 - 11) / 4 = - 0.5
Which expression has like terms?
13c−13d
4+4y
8x2−4y2
8x−4x
PLEASE QUICK ANSWER!! EXPLAIN WORK!!! FOR BRAINIEST!
Answer:
x= y−2/3
Step-by-step explanation:
1 Subtract 2 from both sides.
y-2=3x
2 Divide both sides by 3.
y−2/3 =x
3 Switch sides.
x= y−2/3
c) I use the 4 triangles to make a trapezium. What is the area of the trapezium?
Answer:
1/2=10
Step-by-step explanation:
it depends upon the area of the triwngle
tell weather the lines for each pair of equations are parallel perpendicular or neither y=-2x+4
-5x+10y=5
a.parallel
b. perpendicular
c.neither
Answer:
The slopes are perpendicular.
Step-by-step explanation:
First we are going to find the slope-inercept form from the equation, -5x + 10y = 5.
Solve for y.
-5x + 10y = 5
+5x. =+5x
10y = 5x + 5
\( \frac{10y}{10} = \frac{5x + 5}{10} \\ y = \frac{1}{2}x + \frac{1}{2} \)
So we now have
\(y = \frac{1}{2}x + \frac{1}{2} \\ and \\ y = - 2x + 4 \)
Looking at the equation above, the slopes are perpendicular.
5.4 inches of snow fell in 3.6 hours. How much snow fell per hour?
Answer:
1.5 per hour.
Step-by-step explanation:
By proportion that is 5.4 / 3.6
= 1.5 per hour.
The American Population is living longer. Along with the longevity of life comes additional challenges with both medical and Psychiatric problems. Your patient is about to be discharged from a short-tern rehab center. You overhear the daughter confiding in the nursing student that she cannot handle her mother and will be looking for a Memory care unit to put her mother in. You also hear the student nurse who was raised in a foreign country state, " I would NEVER put my mother in a home. I would take care of her woth my two sisters junti she dies.
what considerations might you make withthis students. Address the cultural differneces in elder care and adress the conself od "Role Strain" in caring for special populations.
Cultural sensitivity is crucial in elder care. Cultural beliefs impact elderly care. A foreign-raised nursing student desires to care for her mother and sisters until her mother's passing.
What is the cultural Strain?Consider cultural values: Students from certain backgrounds may see caring for their elderly parents as a moral duty. Respecting elder beliefs is critical in discussing care options. Have open, non-judgmental communication with the nursing student. Show empathy and listen to her perspective.
Educate the nursing student about caring for a loved one with medical and psychiatric problems. Explain physical, emotional, and financial consequences, including effects on relationships and responsibilities.
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solve the inequality: -2x + 8 < 3 2x - 4.
Answer:
\(x>6/17\)
Step-by-step explanation:
Answer:
2 x+4
Step-by-step explanation:
Solve the equation. Enter your answer as an equation showing the value of the variable (like s = 6, or w = 1/2). Use a slash mark (/) as the fraction bar if necessary. PLEASE ANSWER ASAP AND GET BRAINLIEST FOR A GOOD ANSWER
x/2 * x = 3
Answer:
x = ±√6
Step-by-step explanation:
x/2 * x = 3
x²/2 = 3
x² = 3 * 2
x² = 6
x = ±√6
The Directed Disjoint Paths Problem is defined as follows. We are given a directed graph G
and k pairs of nodes (s1, t1), (s2, t2), . . . , (sk, tk). The problem is to decide whether there exist node
disjoint paths P1, P2, . . . , Pk so that Pi goes from si to ti.
Show that Directed Disjoint Paths is NP-complete.
To show that the Directed Disjoint Paths Problem is NP-complete, we can use a reduction from the well-known NP-complete problem of Hamiltonian Path, which is defined as follows: given a graph G and a starting node s, does G contain a simple path that visits every node exactly once and ends at s?
We can reduce the Hamiltonian Path problem to the Directed Disjoint Paths Problem as follows. Given a graph G and a starting node s for the Hamiltonian Path problem, we can construct a new graph G' as follows:
For each node v in G, create two new nodes v1 and v2 in G'.For each edge (u,v) in G, create an edge (u2,v1) in G'.For each node v in G, create an edge (v1,v2) in G'.For each node v in G, create an edge (v2,s1) in G' if v is not the starting node s, or an edge (v2,s2) in G' if v is the starting node s.Now, consider the k pairs of nodes (s1,t1), (s2,t2), ..., (sk,tk) in G', where si and ti are the corresponding nodes in G' for the ith node in G. We can see that G contains a Hamiltonian path from s to s if and only if G' contains k node-disjoint paths from si to ti for all i.
Since the Hamiltonian Path problem is NP-complete, and we have shown that it can be reduced to the Directed Disjoint Paths Problem in polynomial time, it follows that the Directed Disjoint Paths Problem is also NP-complete.
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A radioactive isotope is decaying at a rate of 15% every hour. Currently there are 150 grams of the substance. Write an equation that will represent the number of grams present after n hours. How much will be left one day from now?A radioactive isotope is decaying at a rate of 15% every hour. Currently there are 150 grams of the substance. Write an equation that will represent the number of grams present after n hours. How much will be left one day from now?
Answer:
The equation that will represent the number of grams present after n hours is \(A(n) = 150(0.85)^n\)
3.035 grams will be left one day from now.
Step-by-step explanation:
Exponential equation for the amount of a substance:
The exponential equation for the amount of a substance is given by:
\(A(t) = A(0)(1-r)^t\)
In which A(0) is the initial amount and r is the decay rate, as a decimal, and t is the time period.
A radioactive isotope is decaying at a rate of 15% every hour.
This means that \(r = 0.15\)
Currently there are 150 grams of the substance.
This means that \(A(0) = 150\)
Write an equation that will represent the number of grams present after n hours.
\(A(n) = A(0)(1-r)^n\)
\(A(n) = 150(1-0.15)^n\)
\(A(n) = 150(0.85)^n\)
How much will be left one day from now?
One day is 24 hours, so this is A(24).
\(A(24) = 150(0.85)^{24} = 3.035\)
3.035 grams will be left one day from now.
What is the image point of (4, - 7) after a translation right 4 units and up 5 units?
Answer:
( 8, - 2 )
Step-by-step explanation:
Twenty standard cartons of octal boxes weigh a total of 1,100 pounds. Find the weight per carton.
Twenty standard cartons of octal boxes weigh a total of 1,100 pounds. The weight per carton is 55 pounds.
Given that twenty standard cartons of octal boxes weigh a total of 1,100 pounds. We need to find the weight per carton.
How to find the weight per carton? To find the weight per carton, we need to divide the total weight of twenty standard cartons of octal boxes by 20.Let's assume the weight of each carton be x.
Therefore, the equation can be formed asx * 20 = 1,100 Solving the above equation for x, x = 1,100/20 Therefore, the weight per carton is 55 pounds. So, twenty standard cartons of octal boxes weigh a total of 1,100 pounds.
The weight per carton is 55 pounds.
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Susan bought a 2-kilogram bag of grapes.On the way home,she ate 125 grams of the grapes.How many grams of grapes did Susan have left?
Answer:
2 kilograms =2000grams
2000grams - 125grams =1875grams
1875grams of grapes did Susan have left
PLEASE HELPPP WILL GIVE BRAINLEST?
P(A and B) is equal to 6.
To find P(A and B), we can use the formula:
P(A and B) = P(A) + P(B) - P(A U B)
Given the information:
P(A U B) = 32 (the probability of either event A or event B occurring)
Universal set contains 52 elements (total number of possible outcomes)
P(A intersection B) = 6 (the probability of both event A and event B occurring)
P(A) = 12 (the probability of event A occurring)
P(B) = 26 (the probability of event B occurring)
We can substitute the known values into the formula:
P(A and B) = P(A) + P(B) - P(A U B)
P(A and B) = 12 + 26 - 32
Simplifying the expression:
P(A and B) = 38 - 32
P(A and B) = 6
Therefore, P(A and B) is equal to 6.
The result indicates that the probability of both event A and event B occurring simultaneously is 6 out of the total number of possible outcomes in the universal set. It means that out of the 52 elements in the universal set, 6 of them satisfy the conditions of both A and B.
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suppose y varies directly as x, and y=48 when x=6. find x when y=72.
Using the constant of proportionality the value of x when y is 72 is 9.
What is a COP?
The ratio between two quantities that are directly proportional is the constant of proportionality. When two quantities grow and shrink at the same rate, they are directly proportional.
If y varies directly as x, it means that y can be expressed as a constant multiple of x, i.e., y = kx, where k is the constant of proportionality.
To find k, we can use the given information that y = 48 when x = 6 -
y = kx
48 = k(6)
k = 8
Now that we know k, we can use it to find x when y = 72 -
y = kx
72 = 8x
x = 9
Therefore, when x = 72, the value of x = 9.
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Find the perimeter of a triangle where the length of side one is 10x + 19. The length of
side two is 12x - 2 and the length of side three is x.
The perimeter of the triangle is 23x + 17.
What is the perimeter of the triangle ?Perimeter is simply the sum of all sides of a polygon.
Given the sides of the triangle;
Side one = 10x + 19
Side two = 12x - 2
Side three = x
To find the perimeter, we add the sides
Perimeter = Side one + Side two + side three
Perimeter = 10x + 19 + 12x - 2 + x
Collect and add like terms
Perimeter = 10x + 12x + x - 2 + 19
Perimeter = 23x - 2 + 19
Perimeter = 23x + 17
Therefore, the perimeter is 23x + 17.
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On average, teens spend 4 hours a week using the Internet and 4 hours doing chores. They spend 10 hours listening to the radio. What percent of the total time teens spend using the Internet and doing chores is the time they spend listening to the radio?
The percent of the total time teens spend using the Internet and doing chores is the time they spend listening to the radio is 55.56%.
How the percentage is calculatedTime spent using the internet = 4 hours
Time spent doing chores = 4 hours
The time spent listening to the radio = 10 hours
The total time spent during the week is 4 + 4 + 10 = 18 hours
The percentage of this total time that is spent listening to the radio is:
(10 hours / 18 hours) x 100% =55.56%
This is basic arithmetic operations and is used in calculation of numbers.
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Help me pleaseeeeee!
Using the pοlygοn tοοl a rectangle with length 5 unit and width 3 units has been drawn
In algebra, what is a rectangle?A rectangle is a type οf quadrilateral that has its parallel sides equal tο each οther and all the fοur vertices are equal tο 90 degrees. Hence, it is alsο called an equiangular quadrilateral. Since, the οppοsite sides are equal and parallel, in rectangle, therefοre, it can alsο be termed as a parallelοgram.
Using the pοlygοn tοοl a rectangle with length 5 unit and width 3 units has been drawn
check the attachment given belοw tο understand.
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k^2+6k=0 solve the quadratic equation by factoring
Answer:
K = √-6k
i did the math and got this answer and it was right
R-8=4
Get r by itself
The equation is:
R - 8 = 4
So to get R all by itself, you can add+8 to BOTH sides of the equation. This will 'cancel' the -8 that is next to R.
R - 8 + 8 = 4 + 8
-8 + 8 = 0 so let's simplify:
R + 0 = 4 + 8
Simplify a little more:
R = 12
What is the best description of originality?
nonobvious
special or interesting
convergent
having a low probability, unique
Originality is the quality of being unique, new, and innovative. It requires creativity, imagination, inspiration, and nonobviousness. Special or interesting aspects may be present, but they are not sufficient to define originality.
Originality refers to the quality of being unique, new, and innovative. It involves creating something that has not been seen or experienced before. The best description of originality is that it is having a low probability and being unique.
An original idea, product, or work of art is something that has not been copied or imitated from others. It represents a new perspective or approach that can offer a fresh insight into a problem or challenge. Originality requires a high level of creativity, imagination, and inspiration, as well as a willingness to take risks and explore new possibilities.
Nonobviousness is also an important factor in originality. It means that the idea or invention is not something that would be obvious to someone skilled in the same field or industry. In other words, an original idea should not be something that could be easily predicted or anticipated.
Special or interesting are also characteristics of originality, but they are not sufficient to define it. An idea or product can be special or interesting without being truly original. For example, a new flavor of ice cream may be interesting, but it may not be original if it has already been created by someone else.
Convergent thinking, on the other hand, involves finding a single solution to a problem. It is the opposite of divergent thinking, which involves generating multiple ideas and possibilities. Convergent thinking is important for finding effective solutions to problems, but it is not the same as originality.
In conclusion, originality is the quality of being unique, new, and innovative. It requires creativity, imagination, inspiration, and nonobviousness. Special or interesting aspects may be present, but they are not sufficient to define originality.
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