The maximum volume of cylinder is 39808.9
Let us consider that, radius of cylinder is r and height is h .
Volume of cylinder is,
V = πr²h
Since, the sum of its height and its circumference is 150 cm.
So,
h + 2πr = 150
h = 150 - 2πr
Substituting value of h in volume equation of cylinder.
V = πr²(150 - 2πr)
V = 150πr² - 2π²r³
For maximum volume, differentiate above expression with respect to r and equate with zero.
dv/dr = 300πr - 6π²r²
300πr - 6π²r² = 0
6πr(50 - πr) = 0
6πr = 0
r = 0
50 - πr = 0
r = 50/π
So, radius of cylinder is, 50/π
Now,
h = 150 - 2πr
h = 150 - 2π(50/π)
h = 50
Substituting value of r and h in volume formula of cylinder.
V = πr²h
V = 3.14(50/3.14)(50/3.14)50
V = 39808.9
Thus, the maximum volume of cylinder is 39808.9
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The area of a trapezoid can be found using the expression
1/2h(b1+b2)
where h is the height and b1 and b2 are the lengths of the bases
a trapezoid has a height of 12 units and bases or (2x+3) and (3x+1).
which expression represents the area of the trapezoid?
answer options:
5x+4
6x+3
30x+42
60x+48
The area of the trapezoid is 30x + 42. Option C
How to determine the expressionThe formula for calculating the area of a trapezoid is expressed as;
A = 1/2h(b1+b2)
Such that the parameters are enumerated as;
A is the areab1 and b2 are the bases of the trapezoidh is the height of the trapezoidNow, substitute the values, we get;
Area = 1/2 × 12(2x + 3 + 3x + 4)
collect the like terms, we have;
Area = 6(5x + 7)
Expand the bracket, we get;
Area = 30x + 42
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Identify: Expressions that are equivalent by using _______ of operations?
Help Me!!!!! Please.
Answer:
commutative
Step-by-step explanation:
im pretty sure this is correct but sorry if im wrong
Use the Law of Syllogism to form a new conditional statement that follows from the pair of true statements.
If BD−→− bisects ∠ABC, then ∠ABD≅∠CBD.
If ∠ABD≅∠CBD, then m∠ABD=12( m∠ABC)
The new conditional statement that follows from the given pair of true statements is: "If BD bisects ∠ABC, then m∠ABD = 1/2(m∠ABC)".
The Law of Syllogism states that if we have two conditional statements "if A then B" and "if B then C" that are both true, then we can combine them to form a new conditional statement "if A then C".
Using the Law of Syllogism, we can combine the given statements to form a new conditional statement,
If BD bisects ∠ABC, then m∠ABD = 1/2(m∠ABC).
To see why this is true, let's break down the logic:
Statement 1: If BD bisects ∠ABC, then ∠ABD ≅ ∠CBD (given)
Statement 2: If ∠ABD ≅ ∠CBD, then m∠ABD = 1/2(m∠ABC) (given)
Conclusion: If BD bisects ∠ABC, then m∠ABD = 1/2(m∠ABC) (Law of Syllogism)
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The coordinates of a point are given. What is its line of reflection?
(7,−7)⟶(7,7)
Answer:
reflection over the y-axis
Step-by-step explanation:
formula for reflection over y is (x,y) -> (x,-y)
guys please help/ no answers from google!
it's for tomorrow
Answer:
Length --> x
Width --> y
Perimeter of a rectangle --> 2x + 2y
The length is always 4 cm more than double the width
x - 4 = 2y
y = (x-4)/2
x = 2y + 4
a. The polynomial equation to give the perimeter --> 2(2y+4) + 2((x-4)/2)
b. x - 4 = 2·6 --> x - 4 = 12 --> x = 16
Perimeter --> 2·16 + 2·6 = 44 cm
For every 5 boys, there are 25 girls. Write this ratio in the simplest form in all three ways (ratio, decimal, fraction).
For every 150 dogs, there are 300 cats. write this ratio in simples form in all three ways.
Answer:
Step-by-step explanation:
5 : 25
In simplest form
1 : 25
In fraction form
1/25
In decimal form
0.04
150 : 300
In simplest form
1 : 2
In fraction form
1/2
In decimal form
0.5
Evaluate 4cd when c=5 d=9
Need help with please.
Answer:
180
Step-by-step explanation:
substitute the values into the expression
4cd
= 4 × 5 × 9 = 20 × 9 = 180
The owner of a chain of car washes at 16 locations around the city made a dot plot to see how many cars were washed at each location on a recent Saturday morning.
Calculate the mean and mean absolute deviation (MAD) for the number of cars washed at each location. Round your answers to the nearest tenth.
The mean is 13 and the mean absolute deviation (MAD) is 3.9
Calculate the mean and mean absolute deviation (MAD)From the box plot, we have the following readings that can be used in our computation:
4 8 10 10 10 10 12 14 14 16 16 18 20 20
The mean is calculated as
Mean = Sum/Count
So, we have
Mean = (4 + 8 + 10 + 10 + 10 + 10 + 12 + 14 + 14 + 16 + 16 + 18 + 20 + 20)/14
Evaluate
Mean = 13
The mean absolute deviation is calculated as
MAD = 1/n * ∑|xi - mean|
So, we have
MAD = 1/14 * (|4 - 13| + |8 - 13| + |10 - 13| + |10 - 13| + |10 - 13| + |10 - 13| + |12 - 13| + |14 - 13| + |14 - 13| + |16 - 13| + |16 - 13| + |18 - 13| + |20 - 13| + |20 - 13|)
Evaluate
MAD = 3.9
Hence, the mean is 13
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Which table shows a bank account balance that increases by a constant amount each month?
PLEASE HELP ASAP‼️‼️Are the sides proportional?
Set up each ratio of sides and determine if they are equal
ratios. Show all of your work.
3.61 cm
R
44°
S
11.97 cm
9.71 cm
15
N
T
17.955 cm
14.565 cm
121°
M
L
5.415 cn
The side lengths form a proportional relationship, and the ratios are as follows:
17.955/11.97 = 14.565/9.71 = 5.415/3.61.
What are similar triangles?Similar triangles are triangles that share these two features presented as follows:
They must have Congruent angle measures.
They have Proportional side lengths.
Here, the triangles are similar, as they have the same angle measures.
17.955/11.97 = 14.565/9.71 = 5.415/3.61.
Thus, the side lengths form a proportional relationship, as the equivalent side have a ratio of 1.5.
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The two quadrilaterals are similar. Write a proportion and solve for MN in the image above
Answer:
MN=2.5cm
Step-by-step explanation:
4/2=6/3=8/4=k=2
MN=5/2=2.5cm
Given each set of vertices determine whether BEFG Is a rhombus, rectangle or square.
9514 1404 393
Answer:
9. rhombus
10. rhombus, rectangle, square
11. rhombus
Step-by-step explanation:
9, 11. Angles are obviously not 90°, so each figure is a rhombus.
__
10. Line slopes are 1 or -1, so are perpendicular. Side lengths are all the diagonal of 6 squares, so 6√2.
The figure is a rhombus, rectangle, and square.
i flip a fair coin and draw a card randomly from a standard 52-card deck. you want to know the probability the coin comes up heads and the card is a heart. which rule of probability would help you?
On solving the provided question, we can say that - the probability the coin comes up heads and the card is a heart is 1/26
What is probability?The probability that something will occur is the foundation for it. The foundation of theoretical probability is the justification of probability. For instance, the theoretical likelihood of receiving heads while tossing a coin is 1/2. A branch of mathematics known as probability measures the possibility of an event happening or a proposition being true. The probability of an occurrence is a number between 0 and 1, where roughly 0 denotes the event's improbability and 1 denotes certainty.
let
e1 be the drawing a card from a deck of 52 cards,
and,
e2 be the flipping of a coin,
These two events are mutually exclusive. so,
\(P(E1) = 4/52 = 1/13\\P(E2) = 1/2\\now, P(E1 and E2 ) = P(E1) * P(E2) = (1/13)*(1/2) = 1/26.\\\)
Answer is 1/26.
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I NEED HELP RIGHT NOWW
what is the y intercept of this line
Answer:
(0,21)
Step-by-step explanation:
when you want to find the x intercept make y=0
to find the y intercept make x=0
Someone pls answer #3 and 4
Will reward brainliest to the first most accurate answer ASAP.
Answer:
hiii my pic lol (✿^‿^)(✿^‿^)(✿^‿^)(✿^‿^)
Help!!! Please just answer the question. Thank you!
Let’s compare two different raffles to see which ticket you should buy?
A. Raffle 1: 800 raffle tickets are sold $2.00 each. There is one gran prize for $450 and two consolation prizes of $100 each that will be awarded. What is the expected value of one ticket?
Answer:
I only see one raffle, but the expected value of one ticket is $2. (I think)
Step-by-step explanation:
Have a nice day!
The expected value E(x) of 1 ticket is $0.40.
How to calculate the total amount?To calculate the total amount by the formula;
Amount = Ticket x Value
Raffle 1
Given;
Tickets = 800
Value = $2 per ticket
Grand ticket = $450 ...for 1
consolation =$100.. for 2
We need to find the expected value of each ticket;
First, we have to calculate the total amount of the 800 tickets
Amount = Ticket x Value
Amount = 800 x 2
Amount = 1600
Next, we have to calculate the total amount of the prizes
Amount = Ticket x Value
Amount = 450 x 200
Amount = 650
The expected value E(x) of 1 ticket is calculated:
E(x) = 650 / 1600
E(x) = $0.40
Thus, the expected value E(x) of 1 ticket is $0.40.
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Which represents a function? HELP ASAP PLZ AND THX!
Answer: B
Step-by-step explanation:
Because your X values don't repeat
Which equation is equivalent to
1
4
+x=-- ? Select all that apply.
4
6
x=
4
6
=
5
c-
11
2
x
Alw
Answer:
is that 14 or 1/4?
Step-by-step explanation:
Convert the integral ∫∫ r √4 −x2−y2da where r = {(x, y) : x2 y2≤ 4, x ≥ 0} to polar coordinates, and then evaluate.
The integral ∫∫ r √4 −x2−y2da where r = {(x, y) : x2 y2≤ 4, x ≥ 0} conversion to polar coordinates the value of the integral is (4/3)π.
To convert the integral to polar coordinates, we need to express the limits of integration in terms of the polar coordinates.
Recall that in polar coordinates, x = r cosθ and y = r sinθ, where r is the radial distance from the origin and θ is the angle measured counterclockwise from the positive x-axis to the line connecting the origin to the point (x, y).
In this case, the region r is defined by \(x^2 + y^2\) ≤ 4 and x ≥ 0. In polar coordinates, this corresponds to the region 0 ≤ r ≤ 2 and 0 ≤ θ ≤ π/2. To see why, note that x ≥ 0 implies 0 ≤ θ ≤ π/2, and \(x^2 + y^2 = r^2\), so r ≤ √4 = 2.
So we have:
∫∫ r √4 −x2−y2da = ∫(θ=0 to π/2) ∫(r=0 to 2) r√(4-\(r^2\)) dr dθ
To evaluate this integral, we can use the substitution u = 4 - \(r^2\), du = -2r dr, which gives:
∫∫ r √4 −x2−y2da = ∫(θ=0 to π/2) ∫(u=4 to 0) -1/2 √u du dθ
Now we can evaluate the inner integral:
∫(u=4 to 0) -1/2 √u du = [-1/3 u^(3/2)](u=4 to 0) = (1/3)(8 - 0) = 8/3
Substituting this back into the original integral, we have:
∫∫ r √4 −x2−y2da = ∫(θ=0 to π/2) (8/3) dθ = (8/3) (π/2 - 0) = (4/3)π
Therefore, the value of the integral is (4/3)π.
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LowStress Marketing Research designed a perceptual mapping study to compare several leading brands of soap for Bubbles O'Connor, product manager for Slippery Soap. Bubbles asked to see a sample question from the study and was shown the following format: Slipery Soap is a disinfectant soap: Neither Agree or Disagree, 4) Disagree, 5) Strongly Disagree. In addition, Bubbles saw the results from the regression analysis for soaps in the study which showed the following equation: Overall Preference -2.1 +2.3* Cleaning Ability+1.0* Cost+0.6 Disinfecting Ability. What would be the slope of the ideal vector?
The slope of the ideal vector, determined by examining the coefficients of the variables in the regression equation is:
Cleaning Ability: 2.3
Cost: 1.0
Disinfecting Ability: 0.6.
In this case, the regression equation is:
Overall Preference = -2.1 + 2.3 * Cleaning Ability + 1.0 * Cost + 0.6 * Disinfecting Ability
The coefficients of the variables represent the weights or importance assigned to each variable in determining the overall preference. Therefore, the slope of the ideal vector would be the coefficients of the variables in the regression equation.
Based on the given regression equation, the slope of the ideal vector would be:
Cleaning Ability: 2.3
Cost: 1.0
Disinfecting Ability: 0.6
These values indicate the relative importance or impact of each variable on the overall preference for Slippery Soap.
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number n is positioned to the left of the number 1 on a number line. Which statement must be true?
Answer:
sorry I need points you understand I
Step-by-step explanation:
have -32 points
the product of a number and -3 increased by 8 is no less than 35
Answer:
-3x + 8 ≥ 35, hopefully that answers your question since you didn't really specify what you wanted your answer to be
Hello people ~
Factorise: x^2 + 7x + 12
Step-by-step explanation:
x^2 + (4+3)X + 12
x^2 + 4x + 3X + 12
X (X + 4) + 3 ( X + 4)
( X + 3) (X +4)
Solving steps:
\(\sf \rightarrow x^2\:+\:7x\:+\:12\)
breakdown the following
\(\sf \rightarrow x^2\:+\:3x + 4x\:+\:12\)
break the expressions into groups
\(\sf \rightarrow \left(x^2+3x\right)+\left(4x+12\right)\)
factor the following
\(\rightarrow \sf x\left(x+3\right)+4\left(x+3\right)\)
factor the common term: (x+3)
\(\rightarrow \sf \left(x+3\right)\left(x+4\right)\)
What is the mean of the data set rounded to the nearest tenth?
0.7 1.1 0.8 1.6 1.6 2.2 1.1
Answer:
1.3Step-by-step explanation:
Mean is the average of data set:
μ = (0.7 + 1.1 + 0.8 + 1.6 + 1.6 + 2.2 + 1.1)/7 = 1.3Mean
\(\\ \rm\leadsto \dfrac{\sum n}{n}\)
\(\\ \rm\leadsto \dfrac{0.7+1.1+0.8+1.6+1.6+2.2+1.1}{7}\)
\(\\ \rm\leadsto 1.3\)
A line passes through (2, - 1) and (4, 5). Which answer is the equation of
the line?
y=3/5x+13/5
y=3x + 17
y= 2 x -13/5
y= 3x – 7
Answer: 3x-7 is the correct answer
Rewrite using a rational exponent. Assume all variables are positive.3√a5x10
Note that a radical expression can be express in rational exponents :
\(\sqrt[n]{a}=a^{\frac{1}{n}}\)From the problem, we have :
\(\sqrt[3]{a^5x^{10}}=(a^5x^{10})^{\frac{\frac{1}{1}}{3}}\)When simplifying exponents with parenthesis, the exponents are multiplied with each other.
\((a^m)^n=a^{mn}^{}\)So we have :
\(\begin{gathered} (a^5x^{10})^{\frac{1}{3}}=a^{5\times\frac{1}{3}}x^{10\times\frac{1}{3}} \\ \Rightarrow a^{\frac{5}{3}}x^{\frac{10}{3}} \end{gathered}\)The answer is :
\(a^{\frac{5}{3}}x^{\frac{10}{3}}\)Factorise fully 6x^2 - 15x
Answer:
The answer is :
3x(2x-5)
WHAT IS THE CENTRAL ATOM OF NITRIC OXIDE (NO)
Answer:
The answer is Nitrogen
Hope this helps :)
Lucy has $7 less than Kristine and $5 more than Nina together,the three have $35 how much does Lucy have?
Lucy has $7 less than Kristine and $5 more than Nina together, the three have $35. Lucy has $11.
Let's denote the amount of money that Kristine has as K, the amount of money that Lucy has as L, and the amount of money that Nina has as N.
According to the given information, we can form two equations:
Lucy has $7 less than Kristine: L = K - 7
Lucy has $5 more than Nina: L = N + 5
We also know that the three of them have a total of $35: K + L + N = 35
We can solve this system of equations to find the values of K, L, and N.
Substituting equation 1 into equation 3, we get:
K + (K - 7) + N = 35
2K - 7 + N = 35
Substituting equation 2 into the above equation, we get:
2K - 7 + (L - 5) = 35
2K + L - 12 = 35
Since Lucy has $7 less than Kristine (equation 1), we can substitute K - 7 for L in the above equation:
2K + (K - 7) - 12 = 35
3K - 19 = 35
Adding 19 to both sides:
3K = 54
Dividing both sides by 3:
K = 18
Now we can substitute the value of K into equation 1 to find L:
L = K - 7
L = 18 - 7
L = 11
Finally, we can find the value of N by substituting the values of K and L into equation 3:
K + L + N = 35
18 + 11 + N = 35
N = 35 - 18 - 11
N = 6
Therefore, Lucy has $11.
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Simplify this expression
-4 - 10x