A Henry company makes iron balls with radius 6 make approximately 150 balls out of the given amount of iron.
The number of balls Henry can make, to determine the volume of each ball and then divide the total amount of iron by the volume of a single ball.
The volume of a sphere is given by the formula: V = (4/3) × π ×r²3, where V represents the volume and r is the radius.
Given that the radius is 6 inches and pi (π) is 3.14, substitute these values into the formula to calculate the volume of a single ball:
V = (4/3) × 3.14 × 6²3
= (4/3) ×3.14 × 216
= 904.32 cubic inches
Now, the number of balls by dividing the total amount of iron by the volume of a single ball:
Number of balls = Total iron / Volume of a single ball
= 135648 / 904.32
=150
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in a situation where the sample size was 28 while the population standard deviation was increased, what would be the impact on the confidence interval?
if the population standard deviation is increased while the sample size is 28, the confidence interval will become wider. This is because there is more variability in the sample mean, and therefore more uncertainty in the estimate of the population parameter.
If the sample size is 28 and the population standard deviation is increased, there will be a direct impact on the confidence interval. This is because the confidence interval is calculated based on the sample mean and the standard deviation. If the population standard deviation is increased, it means that there is more variability in the population. This increase in variability will lead to wider confidence intervals.
A confidence interval is a range of values that is likely to contain the true population parameter with a certain level of confidence. The width of the confidence interval is determined by the sample size, the standard deviation, and the level of confidence.
In this case, if the population standard deviation is increased, it means that the sample standard deviation will also increase. The sample mean will be relatively more variable than it would be if the population standard deviation was lower. This increase in variability will cause the confidence interval to become wider, as there is more uncertainty in the estimate of the population parameter.
In summary, if the population standard deviation is increased while the sample size is 28, the confidence interval will become wider. This is because there is more variability in the sample mean, and therefore more uncertainty in the estimate of the population parameter. It is important to note that increasing the sample size can help to reduce the impact of increased population standard deviation on the confidence interval, as a larger sample size provides more accurate estimates of the population parameter.
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Valley spa purchased $7,800 in plumbing components from tubman company. Valley spa signed a 60-day, 10% promissory note for $7,800. If the note is dishonored, what is the amount due on the note? (use 360 days a year. ).
The amount due on the note with the cost of $7800 , 10% promissory note for 60 days is equal to $7930.
As given in the question,
Cost of purchase a plumbing components = $7,800
Valley spa signed promissory note for 60 day
Percentage of promissory note = 10%
Condition: For the note is dishonored :
Amount due,
Due Interest on the note
= 7800 × (10 /100) × ( 60 /360)
= 78 × 10 × ( 1/6)
= 13 × 10
= $130
Total amount due
= original cost + interest
= $(7800 + 130)
= $7930
Therefore, for the dishonored note the amount due on the note is $7930.
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An enclosure at a zoo contains giraffes and ostriches. All together the zookeeper counts 70 heads and 200 legs. How many of each animal are there?
By solving equations we know that there are 30 giraffes and 40 ostriches in the zoo.
A mathematical statement known as an equation is made up of two expressions joined by the equal sign.
A formula would be 3x - 5 = 16, for instance.
When this equation is solved, we discover that the number of the variable x is 7.
So, calculate as follows:
Let g represent giraffes and o represent ostriches.
g + o = 70 ...(1)
4*g + 2*o = 200 ...(2)
g = 70 - o, according to equation 1, therefore we may enter that number in place of g in equation 2 to obtain:
4*g + 2*o = 200
4*(70-o) + 2*o = 200
280 - 4o + 2o = 200
-2o = 200 - 280
2o = 80
o = 80/2
o = 40
Ostriches are 40 then giraffes will be:
70 - 40 = 30
Therefore, by solving equations we know that there are 30 giraffes and 40 ostriches in the zoo.
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Answer the question.
Answer:
EBC
Step-by-step explanation:
Supplementary means add to 180
It would form a straight line
To make a straight line with ABC, we need the angle CBE
Another way to write angle CBE is EBC
Tim is making 30 sundaes with mint, chocolate, and vanilla ice cream.
1/5
of the sundaes are mint ice cream and
1/2
of the remaining sundaes are chocolate. The rest will be vanilla. How many sundaes will be vanilla?
Answer:
12
Step-by-step explanation:
1/5 mint = 6
30 - 6 = 24
Half of 24 is 12
12 is chocolate
so 12 must be vanilla
Integrate the ODE
dy/dx = x² √y, 0 < x < 2, y(0) = 1
using Euler's method (Δx = 0, 2) to compute y(2). Obtain analytical solution to the ODE and compare y(2) obtained using Euler's method with that obtained analytically.
we find that the numerical approximation using Euler's method gives y(2) ≈ 1.865, while the analytical solution gives y(2) = 2.5.
Using the formula y(n+1) = y(n) + Δx * f(x(n), y(n)), where f(x, y) = x² √y, we can calculate the values of y at each step. Here's the step-by-step calculation:
Step 1: For x = 0, y = 1 (initial condition).
Step 2: For x = 0.2, y = 1 + 0.2 * (0.2)² * √1 = 1.008.
Step 3: For x = 0.4, y = 1.008 + 0.2 * (0.4)² * √1.008 = 1.024.
Step 4: For x = 0.6, y = 1.024 + 0.2 * (0.6)² * √1.024 = 1.052.
Step 5: For x = 0.8, y = 1.052 + 0.2 * (0.8)² * √1.052 = 1.094.
Step 6: For x = 1.0, y = 1.094 + 0.2 * (1.0)² * √1.094 = 1.155.
Step 7: For x = 1.2, y = 1.155 + 0.2 * (1.2)² * √1.155 = 1.238.
Step 8: For x = 1.4, y = 1.238 + 0.2 * (1.4)² * √1.238 = 1.346.
Step 9: For x = 1.6, y = 1.346 + 0.2 * (1.6)² * √1.346 = 1.483.
Step 10: For x = 1.8, y = 1.483 + 0.2 * (1.8)² * √1.483 = 1.654.
Step 11: For x = 2.0, y = 1.654 + 0.2 * (2.0)² * √1.654 = 1.865.
Therefore, using Euler's method with a step size of Δx = 0.2, we approximate y(2) to be 1.865.
To obtain the analytical solution to the ODE, we can separate variables and integrate both sides:
∫(1/√y) dy = ∫x² dx
Integrating both sides gives:
2√y = (1/3)x³ + C
Solving for y:
y = (1/4)(x³ + C)²
Using the initial condition y(0) = 1, we can substitute x = 0 and y = 1 to find the value of C:
1 = (1/4)(0³ + C)²
1 = (1/4)C²
4 = C²
C = ±2
Since C can be either 2 or -2, the general solution to the ODE is:
y = (1/4)(x³ + 2)² or y = (1/4)(x³ - 2)²
Now, let's evaluate y(2) using the analytical solution:
y(2) = (1/4)(2³ + 2)² = (1/4)(8 + 2)² = (1/4)(10)² = 2.5
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Someone explain please
Answer:
SA = 94 ft²
Step-by-step explanation:
To find the surface area of a rectangular prism, you can use the equation:
SA = 2 ( wl + hl + hw )
SA = surface area of rectangular prism
l = length
w = width
h = height
In the image, we are given the following information:
l = 4
w = 5
h = 3
Now, let's plug in the information given to us to solve for surface area:
SA = 2 ( wl + hl + hw)
SA = 2 ( 5(4) + 3(4) + 3(5) )
SA = 2 ( 20 + 12 + 15 )
SA = 2 ( 47 )
SA = 94 ft²
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Given f(x)=x^{2}+3 x , find an expression that gives the slope of the line from (1, f(1)) to (1+h, f(1+h)) . Your answer will be an expression involving h . Question Help:
The expression for the slope of the line from (1, f(1)) to (1+h, f(1+h)) is:
m = (h² + 5h) / (h + 1).
To find the slope of the line passing through the points (1, f(1)) and (1+h, f(1+h)), we can use the formula for slope:
Slope (m) = (change in y) / (change in x)
The change in y is f(1+h) - f(1), and the change in x is (1+h) - 1.
Therefore, the slope can be expressed as:
m = (f(1+h) - f(1)) / ((1+h) - 1)
Now, let's calculate f(1) and f(1+h) using the given function f(x) = x² + 3x:
f(1) = (1)² + 3(1) = 1 + 3 = 4
f(1+h) = (1+h)² + 3(1+h) = 1 + 2h + h² + 3 + 3h = h² + 5h + 4
Substituting these values into the slope expression:
m = (h² + 5h + 4 - 4) / (h + 1)
Simplifying further:
m = (h² + 5h) / (h + 1)
Therefore, the expression for the slope of the line from (1, f(1)) to (1+h, f(1+h)) is:
m = (h² + 5h) / (h + 1)
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Which fraction and decimal forms match the long division problem?
Answer: C
Step-by-step explanation: C
2 divided into 9 parts is 2/9.
Let's' explain this visually
Take this pizza, (image below)
Let's say we have two pizzas for 8 friends (including ourselves), so naturally, we'll cut the pizza's each into 9 slices, 1 for each, now everyone gets 1/9 of a pizza, but there are two pizzas, so if we add 1/9+1/9, we'll get two ninths.
Now 2/9=0.2 repeating!
This is how I got my answer sorry for the vague explanation
Evaluate –3 2nd power + (2 – 6)(10).
Answer:
-49
Step-by-step explanation:
-3^2=-9
(2-6)*10=-40
(-9) + (-40) = -49
Multiply o binomial by a trinomial
(x-1) (x²+x+1)
Answer:
Is this helpful or wrong?
Answer:
hey there, the product is x³ - 1
pls the primitive of this function
Let F (n) denote the integral,
∫ x (1 - ln(x))ⁿ dx
We attempt to find a power-reduction formula for F (n) in terms of F (n - 1). Integrate by parts, with
u = (1 - ln(x))ⁿ → du = - n/x (1 - ln(x))ⁿ ⁻¹ dx
dv = x dx → v = 1/2 x ²
Then
F (n) = u v - ∫ v du
F (n) = 1/2 x ² (1 - ln(x))ⁿ + n/2 ∫ x (1 - ln(x))ⁿ ⁻¹ dx
F (n) = 1/2 x ² (1 - ln(x))ⁿ + n/2 F (n - 1)
From this relation, we get
F (n - 1) = 1/2 x ² (1 - ln(x))ⁿ ⁻¹ + (n - 1)/2 F (n - 2)
F (n - 2) = 1/2 x ² (1 - ln(x))ⁿ ⁻² + (n - 2)/2 F (n - 3)
F (n - 3) = 1/2 x ² (1 - ln(x))ⁿ ⁻³ + (n - 3)/2 F (n - 4)
and so on, down to
F (1) = 1/2 x ² (1 - ln(x)) + 1/2 F (0)
where
F (0) = ∫ x dx = 1/2 x ² + C
By recursively substituting, we find
→ F (n) = 1/2 x ² (1 - ln(x))ⁿ + n/2 [1/2 x ² (1 - ln(x))ⁿ ⁻¹ + (n - 1)/2 F (n - 2)]
… = 1/2 x ² (1 - ln(x))ⁿ + n/2² x ² (1 - ln(x))ⁿ ⁻¹ + (n (n - 1))/2² F (n - 2)
→ F (n) = 1/2 x ² (1 - ln(x))ⁿ + n/2² x ² (1 - ln(x))ⁿ ⁻¹ + (n (n - 1))/2² [1/2 x ² (1 - ln(x))ⁿ ⁻² + (n - 2)/2 F (n - 3)]
… = F (n) = 1/2 x ² (1 - ln(x))ⁿ + n/2² x ² (1 - ln(x))ⁿ ⁻¹ + (n (n - 1))/2³ x ² (1 - ln(x))ⁿ ⁻² + (n (n - 1) (n - 2))/2³ F (n - 3)
→ F (n) = 1/2 x ² (1 - ln(x))ⁿ + n/2² x ² (1 - ln(x))ⁿ ⁻¹ + (n (n - 1))/2³ x ² (1 - ln(x))ⁿ ⁻² + (n (n - 1) (n - 2))/2³ [1/2 x ² (1 - ln(x))ⁿ ⁻³ + (n - 3)/2 F (n - 4)]
… = 1/2 x ² (1 - ln(x))ⁿ + n/2² x ² (1 - ln(x))ⁿ ⁻¹ + (n (n - 1))/2³ x ² (1 - ln(x))ⁿ ⁻² + (n (n - 1) (n - 2))/2⁴ x ² (1 - ln(x))ⁿ ⁻³ + (n (n - 1) (n - 2) (n - 3))/2⁴ F (n - 4)
and so on, down to
F (n) = 1/2 x ² (1 - ln(x))ⁿ + n/2² x ² (1 - ln(x))ⁿ ⁻¹ + … + (n (n - 1) … 2 × 1)/2ⁿ F (0)
F (n) = 1/2 x ² (1 - ln(x))ⁿ + n/2² x ² (1 - ln(x))ⁿ ⁻¹ + … + (n (n - 1) … 2 × 1)/2ⁿ ⁺¹ x ² + C
We can write this more compactly as the sum,
\(F(n)=\displaystyle\int f_n(x)\,\mathrm dx=x^2\sum_{k=0}^n \frac{n!}{2^{k+1} (n-k)!} (1-\ln(x))^{n-k} + C\)
or
\(F(n)=\displaystyle\int f_n(x)\,\mathrm dx=x^2\sum_{k=0}^n \frac{k!}{2^{k+1}}\binom nk(1-\ln(x))^{n-k} + C\)
where \(\binom nk=\frac{n!}{k!(n-k)!}\) is the binomial coefficient.
Please help me with this question!!!!!
h = 11.9 cm
cos = adjacent/ hypotenuse
therefore:
cos(24) = h/ 13
rearrange:
h = 13cos(24)
put into calculator:
h = 11.8760...
rounded to one decimal point:
h = 11.9cm
Daniel can run 1 2/3 mile in 12 1/2 minute. How many mile did he run in 1 minute?
Daniel ran an average of 0.14 miles per minute, which means he ran 1 2/3 miles in 12 1/2 minutes.
Daniel completed 1 2/3 miles in 12 1/2 minutes, which means that he ran an average of 0.14 miles per minute. This rate of speed can be quickly calculated by taking the total distance he ran divided by the amount of time it took him to run it. In this case, 1 2/3 miles divided by 12 1/2 minutes equals 0.14 miles per minute. This means that in one minute, Daniel ran approximately 0.14 miles. This rate of speed is an average rate and may vary depending on the terrain, how much rest he took in between running, and how hard he pushed himself.
1 2/3 miles / 12 1/2 minutes = 0.14 miles per minute
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What single transformation was applied to triangle AAA to get triangle BBB?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Translation
(Choice B)
B
Rotation
(Choice C)
C
Reflection
(Choice D)
D
Dilation
Answer:
the answer is D
Step-by-step explanation:
Answer:
answer
Step-by-step explanation:
answer is step 5 choice a
What is the sign of -5.
(-1 -2)
Choose 1 answer:
Positive
B
Negative
Zero
Answer:
Negative! -5/2
Step-by-step explanation:
.......
solve pls brainliest
I'm just doing this for achievement sorry bro
Step-by-step explanation:
dud
A stream of crude oil has a molecular weight of 4.5x10² kg/mol and a mean average boiling point of 370 °C. Estimate the followings: 1. The crude specific gravity at 60 °F? 2. The crude gravity (API°) at 60 °F? 3. Watson characterization factor? 4. Refractive index? 5. Surface tension? 6. Is this crude oil paraffinic, naphthenic or aromatic? Explain, briefly and qualitatively.
The crude oil is likely to be paraffinic. Paraffinic crude oils are characterized by having a high API°, low Watson characterization factor, and low refractive index. They also tend to have a high surface tension.
Specific gravity at 60 °F: 0.88
API° at 60 °F: 28
Watson characterization factor: 1.014
Refractive index: 1.44
Surface tension: 20 dyne/cm
Paraffinic, naphthenic, or aromatic: Paraffinic
Specific gravity at 60 °F the specific gravity of a liquid is its density relative to the density of water. The specific gravity of crude oil is typically between 0.8 and 1.0. A specific gravity of 0.88 means that the crude oil is 88% as dense as water.
API° at 60 °F: The API°, or American Petroleum Institute gravity, is a measure of the lightness or darkness of crude oil. A higher API° indicates a lighter crude oil. A crude oil with an API° of 28 is considered to be a medium-heavy crude oil.
Watson characterization factor the Watson characterization factor is a measure of the aromaticity of crude oil. A higher Watson characterization factor indicates a more aromatic crude oil. A crude oil with a Watson characterization factor of 1.014 is considered to be a paraffinic crude oil.
Refractive index the refractive index of a liquid is a measure of how much light is bent when it passes through the liquid. The refractive index of crude oil is typically between 1.4 and 1.5. A refractive index of 1.44 indicates that the crude oil is slightly more refractive than water.
Surface tension the surface tension of a liquid is a measure of the force that acts at the surface of the liquid, tending to minimize the surface area. The surface tension of crude oil is typically between 20 and 30 dyne/cm. A surface tension of 20 dyne/cm indicates that the crude oil has a relatively high surface tension.
Based on the estimated values, the crude oil is likely to be paraffinic. Paraffinic crude oils are characterized by having a high API°, low Watson characterization factor, and low refractive index. They also tend to have a high surface tension.
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The value of -9 is than the value of -12 because -9 is to the of -12 on the number line.
Answer: greaterright
Step-by-step explanation:
The graph of f(x) = (0.5)x is replaced by the graph of g(x) = (0.5)x − k. If g(x) is obtained by shifting f(x) down by 2 units, then what is the value of k?
k = 2
k equals one half
k = −2
k equals negative one half
Reason:
To shift down 2 units, we go from f(x) = (0.5)x to g(x) = (0.5)x - 2.
The -2 at the end means we subtract 2 from each y coordinate.
Compare this to g(x) = (0.5)x - k to find that k = 2.
Which of the following commands will return one result of where the grep binary executable is located? (Choose two.)
a. which grep
b. locate grep
c. find grep
d. type grep
The two commands that will return the location of the grep binary executable are:
a. which grep
d. type grep
Which grep searches for the location of the executable file in the directories listed in the PATH environment variable, and returns the first occurrence it finds.
Type grep displays information about the type of command, including its location if it is an executable file.
Locate grep and find grep are not guaranteed to return only one result, as there may be multiple instances of the grep executable on the system. Additionally, locate relies on an indexed database and may not return the most up-to-date information, while find searches the entire directory tree and can be slow for large systems.
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8,637
Number
Nearest ten
Answer:
8, 640
Step-by-step explanation:
It just is :) hope it helps
Jimmy,Andrew, and Richard collect comic books. Jimmy has five more comic books than Andrew, and Richard has four times as many comic books as jimmy. Together they have 145 comic books. Fine the number of comic books each person has
Answer:
Jimmy = 25
Andrew = 20
Richard = 100
Step-by-step explanation:
J = Jimmys # of comics
J - 5 = Andrews # of comics
4J = Richards # of comics
6J - 5 = 145
+5 +5
6J = 150
divide by 6
J = 25
plug 25 into the if statements above for J
5+2\(\sqrt{3\)/7+4\(\sqrt{3}\\\)= a-6\(\sqrt{3}\)
find value of a
Hello!
5 + 2√(3/7) + 4√3 = a - 6√3
5 + 2√(3/7) = a - 6√3 - 4√3
5 + 2√(3/7) = a - 10√3
a = 10√3 + 5 + 2√(3/7)
a = 10√3 + 5 + (2√21)/7
The base of the triangular flag was 4ft and the height was 3 feet. What is the area of Karmas flag
Answer:
6 \(ft.^{2}\)
Step-by-step explanation:
Use the triangle area equation
\(A=\frac{b*h}{2}\)
plug in the base (4ft) times the height (3ft) then divide by two
Multiply. Write your answer as a fraction or as a whole or mixed number.5710×416=
Answer:
2,375,360
Step-by-step explanation:
Please do this question in your copy, make a table like we made in class, scan it, and upload it BB. You have total 1 hour for it.
Alfalah Islamic Bank needed PKR 1500,000 for starting one of its new branch in Gulshan. They have PKR 500,000 as an investment in this branch. For other PKR 1000,000 they plan to attract their customers insted of taking a loan from anywhere.
Alfalah Islamic Issued Musharka Certificates in the market, each certificate cost PKR 5,000 having a maturity of 5 years. They planned to purchased 100 shares themselves while remaining shares to float in the market. Following was the response from customers.
Name Shares
Fahad 30
Yashara 50
Saud 20
Fariha 40
Younus 25
Asif 35
Alfalah Islamic planned that 60% of the profit will be distributed amoung investors "As per the ratio of investment" While the remaining profit belongs to Bank. Annual report shows the following information for 1st five years.
Years Profit/(Loss)
1 (78,000)
2 (23,000)
3 29,000
4 63,000
5 103,500
Calculate and Identify what amount every investor Investor will recieve in each year.
I apologize, I am unable to create tables or upload scanned documents. However, I can assist you in calculating the amount each investor will receive in each year based on the given information.
To calculate the amount received by each investor in each year, we need to follow these steps:
Calculate the total profit earned by the bank in each year by subtracting the loss values from zero.
Year 1: 0 - (-78,000) = 78,000
Year 2: 0 - (-23,000) = 23,000
Year 3: 29,000
Year 4: 63,000
Year 5: 103,500
Calculate the total profit to be distributed among the investors in each year, which is 60% of the total profit earned by the bank.
Year 1: 0.6 * 78,000 = 46,800
Year 2: 0.6 * 23,000 = 13,800
Year 3: 0.6 * 29,000 = 17,400
Year 4: 0.6 * 63,000 = 37,800
Year 5: 0.6 * 103,500 = 62,100
Calculate the profit share for each investor based on their respective share of the investment.
Year 1:
Fahad: (30/100) * 46,800
Yashara: (50/100) * 46,800
Saud: (20/100) * 46,800
Fariha: (40/100) * 46,800
Younus: (25/100) * 46,800
Asif: (35/100) * 46,800
Similarly, calculate the profit share for each investor in the remaining years using the same formula.
By following the calculations above, you can determine the amount each investor will receive in each year based on their share of the investment.
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Solve 2x+4 so that it has one solution
Answer:
-2
Step-by-step explanation:
We can set it equal to zero
2x+4 = 0
2x =-4
x = -2
Answer:
x = -2
Step-by-step explanation:
To solve for variables, we need the equation to be set equal to something. If no other number is given, assume zero.
2x + 4 = 0
Move 4 to the right by subtracting it from the left and right (since it is being added).
2x = -4
Next, isolate x by dividing both sides by 2 (since x is being multiplied by 2)
x = -2
We can check that this is correct by plugging in -2 for x and seeing if we get zero.
2(-2) + 4 = 0
-4 + 4 = 0
0 = 0
Solve dy/dx=1/3(sin x − xy^2), y(0)=5
The general solution to the differential equation dy/dx = 1/3(sin x − xy^2), y(0)=5 is: y = ±√[(sin x - e^(x/2)/25)/x], if sin x - xy^2 > 0 and y(0) = 5
To solve this differential equation, we can use separation of variables.
First, we can rearrange the equation to get dy/dx on one side and the rest on the other side:
dy/dx = 1/3(sin x − xy^2)
dy/(sin x - xy^2) = dx/3
Now we can integrate both sides:
∫dy/(sin x - xy^2) = ∫dx/3
To integrate the left side, we can use substitution. Let u = xy^2, then du/dx = y^2 + 2xy(dy/dx). Substituting these expressions into the left side gives:
∫dy/(sin x - xy^2) = ∫du/(sin x - u)
= -1/2∫d(cos x - u/sin x)
= -1/2 ln|sin x - xy^2| + C1
For the right side, we simply integrate with respect to x:
∫dx/3 = x/3 + C2
Putting these together, we get:
-1/2 ln|sin x - xy^2| = x/3 + C
To solve for y, we can exponentiate both sides:
|sin x - xy^2|^-1/2 = e^(2C/3 - x/3)
|sin x - xy^2| = 1/e^(2C/3 - x/3)
Since the absolute value of sin x - xy^2 can be either positive or negative, we need to consider both cases.
Case 1: sin x - xy^2 > 0
In this case, we have:
sin x - xy^2 = 1/e^(2C/3 - x/3)
Solving for y, we get:
y = ±√[(sin x - 1/e^(2C/3 - x/3))/x]
Note that the initial condition y(0) = 5 only applies to the positive square root. We can use this condition to solve for C:
y(0) = √(sin 0 - 1/e^(2C/3)) = √(0 - 1/e^(2C/3)) = 5
Squaring both sides and solving for C, we get:
C = 3/2 ln(1/25)
Putting this value of C back into the expression for y, we get:
y = √[(sin x - e^(x/2)/25)/x]
Case 2: sin x - xy^2 < 0
In this case, we have:
- sin x + xy^2 = 1/e^(2C/3 - x/3)
Solving for y, we get:
y = ±√[(e^(2C/3 - x/3) - sin x)/x]
Again, using the initial condition y(0) = 5 and solving for C, we get:
C = 3/2 ln(1/25) + 2/3 ln(5)
Putting this value of C back into the expression for y, we get:
y = -√[(e^(2/3 ln 5 - x/3) - sin x)/x]
So the general solution to the differential equation dy/dx = 1/3(sin x − xy^2), y(0)=5 is:
y = ±√[(sin x - e^(x/2)/25)/x], if sin x - xy^2 > 0 and y(0) = 5
y = -√[(e^(2/3 ln 5 - x/3) - sin x)/x], if sin x - xy^2 < 0 and y(0) = 5
Note that there is no solution for y when sin x - xy^2 = 0.
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I have worked the answer to a which is 301.6 but I’m not too sure how you work out b any help would be much appreciated!
Answer:
188.5 cm^2
Step-by-step explanation:
a) Your volume is correct.
b) The curved surface area of the cone is called the lateral area.
Its formula is:
LA = (pi)rs,
where pi is 3.14159...
r = radius of the base
s = slant height of the cone
Here, r = 6 cm, and s = 10 cm
LA = (3.14159)(6 cm)(10 cm)
LA = 188.5 cm^2