By using the statements AE = EB, ∠CAB = ∠CBA, and mCB = mCAB, we can prove that triangle ABC is isosceles. The following statements can be used to prove that triangle ABC is isosceles:
AE = EB
∠CAB = ∠CBA
mCB = mCAB
To prove that AE = EB, we can use the fact that an altitude of a triangle bisects the base. This means that AD divides BC into two segments of equal length, BD and CD. Since AE and EB are the projections of AD onto AB and AC respectively, they must also be equal in length.
To prove that ∠CAB = ∠CBA, we can use the fact that the angles opposite equal sides of a triangle are equal. Since AE = EB, we know that ∆AED and ∆CEB are congruent by SSS. This means that ∠AED = ∠CEB, and since ∠AED + ∠CEB = ∠CAB + ∠CBA, we have ∠CAB = ∠CBA.
To prove that mCB = mCAB, we can use the fact that the base angles of an isosceles triangle are equal. Since ∠CAB = ∠CBA, we know that ∆ABC is isosceles, and therefore mCB = mCAB.
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Dorit wants to make farmer’s cheese. She knows that for 2 gallons of milk, she will need 14 teaspoon of rennet. She only has 12 gallon of milk. Which statement(s) describe the step(s) Dorit can take to determine how much rennet, in teaspoons, she will need to make cheese?
Answer:
to do this you need to Multiply 14 by 6 to satisfy the fact she has 6 times the amount of milk for 14 teaspoons of rennet
23. What is the measure of x in the figure below?
Answer:
a straight lines angle is 180 and 180-65=115
Step-by-step explanation:
115
Answer:
x+65=180
x=180-65
x=125
A line has a slope of 1 and passes through the point (13,1) What is its equation in slope intercept form?
Answer:
y = x - 12
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 1 , then
y = x + c ← is the partial equation
To find c substitute (13, 1) into the partial equation
1 = 13 + c ⇒ c = 1 - 13 = - 12
y = x - 12 ← equation of line
Please help!!! I will mark you as brainliest
1. The current total bid for Empire Design is $16.2 million.
2. The current total bid for Build-Em-Up Co. is $14.4 million.
How are the total bids (costs) determined?We can determine the total bids by using multiplication and addition mathematical operations.
For each vendor, the total bids comprise the total cost based on distance and the total cost based on the number of beams.
The products are added to get the total bids (costs for each bidder).
Distance = 30 km
Number of Beams = 120
Empire Design$300,000 x 30 = $9,000,000
$60,000 x 120 = $7,200,000
Total bid costs = $16,200,000
Build-Em-Up Co.$320,000 x 30 = $9,600,000
$40,000 x 120 = $4,800,000
Total bid costs = $14,400,000
Thus, if the two bidders share equal construction quality, the builder may decide to choose Build-Em-Up Co. whose total bid costs are less costly than Empires.
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Question Completion:A builder wants to build a bridge cross-section with the following particulars:
Distance = 30 km
Number of Beams = 120
Bid Proposals:Empire Design Build-Em-Up Co.
$300,000 x d $320,000 x d
$60,000 per beam $40,000 per beam
What is the current total bid from each bidder?
find the limit of the sequence using l'hôpital's rule. bn = 4 n ln 1 1 n
limₙ→∞bₙ= 4*e^(limₙ→∞ [ln(1+1/n)/n]/[1/n^2]) = 4*e^(limₙ→∞ (1/(n*(1+n))^2)) = 4*e^(0) = 4Therefore, the limit of the sequence using L'Hospital's rule is 4.
The given sequence is bₙ = 4n ln (1 + 1/n).
To determine the limit of the sequence bₙ using L'Hospital's rule, we follow the steps given below:
Step 1: We have to find the limit of the sequence bₙ in the given form.
That islimₙ→∞bₙ= limₙ→∞[4n ln(1 + 1/n)]
Step 2: We will simplify the above expression to get an indeterminate form 0/0 using the formula n ln (1 + 1/n) = ln [(1 + 1/n)^n].Therefore, limₙ→∞bₙ= limₙ→∞[4 ln(1 + 1/n)^n] / [1/(4n)]
We can rewrite the above expression as below using the exponential function. limₙ→∞bₙ= 4 limₙ→∞ [(1 + 1/n)^n]^(4/n)
Step 3: We evaluate the limit on the right-hand side of the above equation.
It is known as e^(limₙ→∞ (4/n)*ln(1+1/n)).Therefore, limₙ→∞bₙ= 4*e^(limₙ→∞ (4/n)*ln(1+1/n))The above limit is of the form 0 * ∞.
We can apply L'Hospital's rule for this case. We take the natural logarithm of the denominator and numerator and differentiate with respect to n.
We can write the new limit as below,limₙ→∞ (4/n)*ln(1+1/n)=limₙ→∞ (ln(1+1/n)/n)/(1/n^2)
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The original cost of a shirt is $40. A store manager marks up the cost by 20% to get
the selling price. During a sale, the store manager marks down the cost of the shirt
by 20%. What is the percent change from the original cost to the sale price? Is this
a percent increase or a percent decrease? Show your work.
Answer:
Step-by-step explanation:
Ans:percentage increased by 20
Gross profit/Cost of sales=20percent
Gross profit=20percent x cost of sales
Sales=120percent x cost of sales
Sales=120x40
=$48
48-40=$8
8/40x100percent=20percent
Answer: Decrease? not 100% sure
Step-by-step explanation:
a soft-drink machine is regulated so that the amount of drink dispensed is approximately normally distributed with standard deviation equal to 0.15 deciliter. find a 90 % confidence level for the mean of all drinks dispensed by this machine if a random sample of 36 drinks has an average content of 2.25 deciliters. what is different? how do you handle it? what difference does it make in the resulting interval?
Using a t-distribution with 35 degrees of freedom, a 90% confidence interval for the mean of all drinks dispensed by a machine is [2.208, 2.292]. It is different because of the unknown population standard deviation and it's resulting interval has wider confidence intervals.
To find the 90% confidence level for the mean of all drinks dispensed by the machine, we can use a t-distribution with 35 degrees of freedom (n-1) since the sample size is 36.
The standard error of the mean (SE) is equal to the standard deviation divided by the square root of the sample size:
SE = 0.15 / sqrt(36) = 0.025
Using a t-distribution table or calculator with 35 degrees of freedom and a 90% confidence level, we find the t-value to be approximately 1.692.
The margin of error (ME) is equal to the product of the t-value and the standard error:
ME = 1.692 * 0.025 = 0.042
The confidence interval for the true mean of all drinks dispensed by the machine is the sample mean plus or minus the margin of error:
CI = sample mean ± ME = 2.25 ± 0.042
Thus, the 90% confidence interval for the true mean of all drinks dispensed by the machine is [2.208, 2.292].
The different is that we used a t-distribution instead of a z-distribution because the population standard deviation is unknown and we had to estimate it from the sample. The t-distribution takes into account the added uncertainty introduced by using the sample standard deviation instead of the population standard deviation.
The difference is that the t-distribution has fatter tails than the normal (z-) distribution, which leads to wider confidence intervals. This means that we are less certain about the true population mean when using a t-distribution, but it is a more accurate estimate of the true population mean when the population standard deviation is unknown and has to be estimated from the sample.
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Which number is equivalent to 2-5?
-1/32
1/32
-10
-32
Answer:
The only answer option that is at least close enough to be the answer is option A.
Lily has $2. 75 in her pocket, consisting of dimes and quarters. If there are 17 coins in all, how many of each does she have?.
Answer:
Lily has 7 Quarters and 10 Dimes
Step-by-step explanation:
Let's use pennies instead of $.
Let D and Q stand for the numbers of Dimes and Quarters, respectively.
We are told that there are 17 coins total:
D + Q = 17
We also learn that they amount to 275 (pennies). We can write that as:
10D + 25Q = 275 [Each D is worth 10 pennies, etc.]
We have two equations and two unknowns. We can rearrange one equation to find the value of either of the unknowns, and then use that it the second equation.
I'll rearrange the first:
D + Q = 17
D = 17 - Q
Now use this value of D in the second equation:
10D + 25Q = 275
10(17-Q) + 25Q = 275
170 - 10Q + 25 Q = 275
15Q = 105
Q = 7 : 7 Quarters.
Since D + Q = 17:
D + 7 = 17
D = 10 Dimes
==========================================
Let's check these results:
Q = 7 Quarters
D = 10 Dimes
1. Is this 17 coins in total? (7+10 = 17) YES
2. Does this add to $2.75? (10*10) + (7*25) = 275 cents?
(100 + 176) = 275 (cents) YES
============================
Lily has 7 Quarters and 10 Dimes
Arrange the following decimals in ascending order.
4. 7569 ; 47. 569 ; 4.9675 ; 4.0007 ; 47. 965 ; 47.005 ; 4.5
Answer:
4.0007, 4.5, 4.7569, 4.9675, 47,005, 47.569, 47.965
Step-by-step explanation:
Identify the rule for each pattern.
Pattern A: 0,3,6,9, 12, 15, 18,...
Pattern B: 0, 12, 24, 36, 48, 60, 72,...
*
Your answer
This is a required question
After the zeros, how is each number in the Pattern B related to the
corresponding number in Pattern A?
Your answer
Answer:
ar some point pattern A will have the same numbers as pattern B as it moves along like if you add 3 for 2 more times in pattern A it will have 24 and so on..
Please help me ASAP!!!!!
Answer:
The surface area is 80.9.
Step-by-step explanation:
183 1/3% of 108 please help me
Answer:
Your answer would be 198.
Step-by-step explanation:
Brainliest please! I am so close to getting my next ranking! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
Si un cateto de un triángulo rectángulo y la hipotenusa miden 5 y 13cm, respectivamente, ¿cuánto mide el otro cateto?
The measure of the other side of the right triangle is given as follows:
12 cm.
What is the Pythagorean Theorem?The Pythagorean Theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.
The theorem is expressed as follows:
c² = a² + b².
In which:
c is the length of the hypotenuse.a and b are the lengths of the other two sides (the legs) of the right-angled triangle.The parameters for this problem are given as follows:
Sides of 5 and x.Hypotenuse of 13.Hence the other side has the length given as follows:
5² + x² = 13²
25 + x² = 169
x² = 144
x = 12.
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solve the given differential equation. 9xy'' 9y' = 0 y(x) = , x > 0
The given differential equation is \(9xy'' - 9y' = 0\).To solve this equation, we can use the method of separation of variables:
1. Rewrite the equation in a standard form: Divide both sides of the equation by 9 to obtain \(xy'' - y' = 0\).
2. Assume a solution of the form \(y = x^k\), where \(k\) is a constant.
3. Calculate the first and second derivatives of \(y\) with respect to \(x\):
\(y' = kx^{k-1}\)
\(y'' = k(k-1)x^{k-2}\)
4. Substitute these derivatives into the differential equation:
\(x(k(k-1)x^{k-2}) - kx^{k-1} = 0\)
5. Simplify the equation:
\(k(k-1)x^k - kx^k = 0\)
6. Factor out \(kx^k\):
\(kx^k(k-1 - 1) = 0\)
7. Simplify further:
\(kx^k(k-2) = 0\)
Now, we have two possibilities:
a) \(kx^k = 0\):
This gives us the solution \(y = 0\).
b) \(k-2 = 0\):
Solving for \(k\), we find \(k = 2\).
Substituting this value back into the assumed solution \(y = x^k\), we get \(y = x^2\) as another solution.
Therefore, the general solution to the differential equation is \(y(x) = c_1 \cdot x^2 + c_2 \cdot 0\), where \(c_1\) and \(c_2\) are arbitrary constants.
In other words, the solution is \(y(x) = c_1 \cdot x^2\), where \(c_1\) is any constant.
The given differential equation is a second-order linear homogeneous equation. By assuming a solution of the form \(y = x^k\), we can transform the equation into a polynomial equation in terms of \(k\) and \(x\). Solving this equation allows us to find the possible values of \(k\) and hence determine the corresponding solutions for \(y\).
In this case, we found two possible solutions: \(y = 0\) and \(y = x^2\). The solution \(y = 0\) corresponds to the trivial solution where the function \(y(x)\) is identically zero. The solution \(y = x^2\) represents a non-trivial solution, a quadratic function of \(x\).
The general solution includes both possibilities and is expressed as a linear combination of these solutions, where \(c_1\) and \(c_2\) are arbitrary constants. The constant \(c_2\) corresponds to the coefficient of the trivial solution \(y = 0\), which is zero in this case.
By choosing specific values for \(c_1\), we can obtain different particular solutions that satisfy the differential equation. The constant \(c_1\) determines the shape and scaling of the quadratic function \(y(x) = c_1 \cdot x^2\).
It's worth noting that the condition \(x > 0\) specified in the problem does not affect the general solution, as the solution is valid for all values of \(x\) since the differential equation is homogeneous.
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To solve the given differential equation, we'll start by rearranging it to a more standard form y(x) = (3Cx) / x^3= 3C / x^2.
The equation is:
9xy'' - 9y' = 0
Let's divide the entire equation by 9x to simplify it:
y'' - y' / x = 0
Now, let's introduce a substitution by setting y' = v. Differentiating both sides with respect to x, we have:
y'' = dv/dx
Substituting these values back into the original differential equation, we get:
dv/dx - v / x = 0
Next, let's multiply the entire equation by x:
x * dv/dx - v = 0
This equation is now in the form of a linear first-order ordinary differential equation. We can solve it by using an integrating factor. The integrating factor for this equation is exp(ln(x)), which simplifies to x. Multiplying the equation by x, we have:
x^2 * dv/dx - xv = 0
Now, we can rewrite this equation as:
d/dx (x^2 * v) = 0
Integrating both sides with respect to x, we obtain:
∫ d/dx (x^2 * v) dx = ∫ 0 dx
This simplifies to:
x^2 * v = C
where C is the constant of integration. Substituting v = y' back into the equation, we have:
x^2 * y' = C
To find the expression for y(x), we can integrate the above equation with respect to x:
∫ x^2 * y' dx = ∫ C dx
Integrating both sides:
∫ x^2 * dy/dx dx = C * ∫ dx
This becomes:
∫ x^2 dy = C * ∫ dx
Integrating both sides further:
(x^3 / 3) * y = Cx + D
where D is another constant of integration. Solving for y, we get:
y = (3Cx + 3D) / x^3
Since we are given the condition y(x) when x > 0, we can ignore the constant D because it would introduce a singularity at x = 0. Thus, the final solution for the given differential equation is:
y(x) = (3Cx) / x^3
= 3C / x^2
where C is an arbitrary constant.
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hello, can anyone help
The solution of the numeric expression is -25
How to solve numeric expressions?
A numeric expression is a mathematical phrase that can be evaluated to a numerical value. It typically consists of numbers, mathematical operators such as addition, subtraction, division, multiplication, and possibly variables or other mathematical functions.
[-5² + 10²]/ [(2×(-5)×3) + 3³] = [-25 + 100]/ [(-30) + 27]
= [-25 + 100]/ [-30 + 27]
= 75/ (-3)
= -25
Thus, the solution of the expression is -25
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The length of the sides of a triangle are y, y + and 7 centimeters. If the triangles perimeter is 56 centimeters, what is the value of y?
A) 24
B) 25
C)31
D) 32
Can I get some more help
Answer:
\(c. \: \sqrt{9} . \sqrt{4} \)
\( \\ \)
Step-by-step explanation:
\( \sqrt{9.4} \\ = \sqrt{9} \times \sqrt{4} \)
What slope would make the lines perpendicular? y = 4x + 2 y = -x + 2 Enter the number that belongs in the green box.
Answer:
The missing number in the green box is 4
Step-by-step explanation:
The product of the slopes of the perpendicular lines is -1, which means
if the slope of one of them is m, then the slope of the perpendicular line to it is the negative reciprocal (\(\frac{-1}{m}\))The slope-intercept form of the linear equation is y = m x + b, where
m is the slope of the lineb is the y-interceptLet us solve the question
∵ The equation of the first line is y = 4x + 2
→ Compare it with the form of the linear equation above
∴ m = 4
∵ m is the slope
∴ The slope of the line is 4
∵ The slope of the perpendicular line should be the negative reciprocal of it
∵ The negative reciprocal of 4 is \(-\frac{1}{4}\)
∴ The slope of the perpendicular line is \(-\frac{1}{4}\)
→ Substitute it in the equation
∴ y = \(-\frac{1}{4}\) x + 2
∴ The missing number in the green box is 4
ind the radius of convergence, r, of the series. [infinity] n2xn 9 · 18 · 27 · · (9n) n = 1
For the series to converge, this limit must be less than 1: |x| < 1
This inequality represents the radius of convergence, r. So, the radius of convergence, r, of the series is 1.
To get the radius of convergence, r, of the given series. The series you've provided is: Σ(n² * x^n) / (9n), with n = 1 to ∞
To get the radius of convergence, we will use the Ratio Test. The Ratio Test states that if the limit as n approaches ∞ of the absolute value of the ratio of consecutive terms is less than 1, then the series converges.
Let's call the general term a_n = (n² * x^n) / (9n). Then, we need to find the limit of |a_(n+1) / a_n| as n approaches ∞:
|a_(n+1) / a_n| = |[((n+1)² * x^(n+1)) / (9(n+1))] / [(n² * x^n) / (9n)]|
Simplify the expression: |(n+1)² * x / n²|
Now, find the limit as n approaches ∞: lim (n→∞) |(n+1)² * x / n²| = |x|
For the series to converge, this limit must be less than 1: |x| < 1
This inequality represents the radius of convergence, r. So, the radius of convergence, r, of the series is 1.
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What is the circumference of the field? *
a circular field has a area of 14400 sq ft
Answer:
425.39
Step-by-step explanation:
suppose you sampled 14 working students and obtained the following data representing, number of hours worked per week {35, 20, 20, 60, 20, 13, 12, 35, 25, 15, 20, 35, 20, 15}. how many students would be in the 3rd class if the width is 15 and the first class ends at 15 hours per week? select one: 6 5 3 4
To determine the number of students in the third class, we need to first calculate the boundaries of each class interval based on the given width and starting point.
Given that the first class ends at 15 hours per week, we can construct the class intervals as follows:
Class 1: 0 - 15
Class 2: 16 - 30
Class 3: 31 - 45
Class 4: 46 - 60
Now we can examine the data and count how many values fall into each class interval:
Class 1: 13, 12, 15 --> 3 students
Class 2: 20, 20, 20, 25, 15, 20, 15 --> 7 students
Class 3: 35, 35, 35, 60, 35 --> 5 students
Class 4: 20 --> 1 student
Therefore, there are 5 students in the third class.
In summary, based on the given data and the class intervals with a width of 15 starting at 0-15, there are 5 students in the third class.
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Given the following unit circle, rotate green dot to the appropriate angle and then
find the exact value of the function.
cos 135°
Y
After rotating green dot to the appropriate angle, The exact value of cos 135° is -√2/2.
In this case, the angle is 135°, and the point on the unit circle corresponding to this angle is located in the second quadrant. The x-coordinate of this point is negative, so the cosine of 135° is negative. The exact value can be found using the Pythagorean theorem, which states that for a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
In this case, the hypotenuse is the radius of the unit circle (1), and the other two sides are the x-coordinate and y-coordinate of the point on the unit circle. Solving for the x-coordinate, we get the exact value of cos 135° as -√2/2.
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The average daily minimum temperature in International Falls, Minnesota, is 38°F warmer in March than in January. If the temperature in January is -10°F, what is the temperature in March?
Answer: 28°F
Step-by-step explanation:
Since in March the temperature is 38 °F warmer, we would simply do -10+38 which gives us 28. So the answer is 28°F
Find the ratio of the following
a) 24 to 40 b) 15 min to 1 hour c) 35cm to 85cm
2. Determine which of the following are in proportion
a) 24,96,25,100 b) 6,24,8,32 c) 40,30,60,45
3. The number of boys and girls in a school are 1168 and 1095 respectively. Express the ratio of
the number of boys to that of the girls in the simplest form. 4. Write the middle terms and extreme terms. Determine if the ratios form a proportion. A) 15cm: 45cm and Rs 40: Rs 160
b) 2 Kg :80 Kg and 25g : 625g
5. The cost of 12 m cloth is RS 360. Find the cost of 15m of cloth. PART B
6. Akash works as a teacher and earns ₹ 15000 per month. His wife who is a Doctor earns
Rs18000 per month. Find the following ratios
a) Akash’s income to the income of his wife
b) Akash’s income to their total income. 7. A tailor earns Rs 15000 in 15 months. How much does he earn in 7 months?
8. The ratio of the length of a school ground to its width is 5:2. Find its length if the width is
40m. 9. Divide 40 pens between Sheela and Leela in the ratio 3:2. 10. Present age of father is 62 yrs and that of his son is 24 yrs. Find the ratio of
a) Present age of father to the present age of son. B) Age of father to the age of son, when son was 10 yrs old. C) Age of father after 10 yrs to the age of son after 6yrs. D) Age of father to the age of son when father was 30 yrs old. PART C
11. Rahul drives his car and travels 10 Km in 12mins. What is the distance covered by him in 1
hour?
12. Find the value of ‘x’ in the following :
a) 4: x : : 20: 35 b) x : 19 : : 142 : 71
13. The first ,second and fourth terms of a proportion are 6, 18 and 25 respectively. Find its
third term. 14. Ravi purchases 20 pens for Rs 300 and Manish buys 14 pens for Rs 168. Can you say who
got the pens cheaper?
15. The price of 3mts of cloth is Rs 79. 50. Find the price of 15mts of such cloth
1. The simplified ratio is 3:5, the simplified ratio is 1:4 , simplified 7 : 17
2. The proportion value: 0.25
3. The simplified ratio is 16:15
4. The extreme terms are 15cm and 160 .
5. The cost of 15m of cloth is Rs 450
6. The simplified ratio is 5:6
7. The tailor earns ₹7,000 in 7 months
8. The length of the school ground is 100m
9. Sheela receives 24 pens and Leela receives 16 pens.
10. 31:12
11. x = 7
12. x = 7
13. x ≈ 8.33
14. Manish got the pens cheaper
15. The price of 3mts of cloth is Rs 79. 50. The price of 15mts of cloth is Rs 397.50
1) a) Ratio of 24 to 40: 24:40 can be simplified by dividing both numbers by their greatest common divisor, which is 8. So the simplified ratio is 3:5.
b) Ratio of 15 minutes to 1 hour: Since there are 60 minutes in 1 hour, the ratio is 15:60, which can be simplified by dividing both numbers by their greatest common divisor, 15. So the simplified ratio is 1:4.
c) Ratio of 35cm to 85cm: simplified 7 : 17.
Proportions
a) 24, 96, 25, 100: These numbers are in proportion because if you divide 24 by 96 and 25 by 100, you get the same value: 0.25.
b) 6, 24, 8, 32: These numbers are in proportion because if you divide 6 by 24 and 8 by 32, you get the same value: 0.25.
c) 40, 30, 60, 45: These numbers are not in proportion because if you divide 40 by 30 and 60 by 45, you get different values: approximately 1.333 and 1.333 recurring.
Ratio of boys to girls
The ratio of boys to girls in the school is given as 1168:1095. To express it in its simplest form, divide both numbers by their greatest common divisor, which is 73. So the simplified ratio is 16:15.
Terms and Proportions
a) 15cm:45cm and Rs 40:Rs 160: The middle term is 45cm, the extreme terms are 15cm and 160.
b) 2 Kg:80 Kg and 25g:625g: The middle term is 80 Kg, the extreme terms are 2 Kg and 625g.
Both of these ratios are not in proportion because the ratios of the extreme terms do not match.
Cost of cloth
The cost of 12m of cloth is Rs 360. To find the cost of 15m of cloth, we can set up a proportion:
12m/360 = 15m/x
12m × x = 360 × 15m
x = (360 × 15m) / 12m
x = 450
Ratios of income
a) Akash's income to his wife's income: ₹15,000 : ₹18,000 can be simplified by dividing both numbers by their greatest common divisor, which is ₹3,000. So the simplified ratio is 5:6.
b) Akash's income to their total income: ₹15,000 : (₹15,000 + ₹18,000) = ₹15,000 : ₹33,000, which can be simplified to 5:11.
Earnings of a tailor
If the tailor earns ₹15,000 in 15 months, we can calculate the earnings in 7 months using proportion:
15 months / ₹15,000 = 7 months / x
15 months × x = 7 months × ₹15,000
x = (7 months × ₹15,000) / 15 months
x = ₹7,000
Length of a school ground
If the ratio of the length to width is 5:2 and the width is 40m, we can find the length using proportion:
2 / 40 = 5 / x
2 × x = 40 × 5
x = (40 × 5) / 2
x = 100
Division of pens
If there are 40 pens to be divided between Sheela and Leela in the ratio 3:2, we can calculate the number of pens each receives:
Total pens = 40
Total ratio parts = 3 + 2 = 5
Sheela's share = (3/5) × 40 = 24 pens
Leela's share = (2/5) × 40 = 16 pens
Age ratios
a) Present age of father to present age of son: 62 years : 24 years can be simplified by dividing both numbers by their greatest common divisor, which is 2. So the simplified ratio is 31:12.
b) Age of father to age of son when the son was 10 years old: Since the son's age is 10 years, we need to find the age of the father at that time. The age difference between the father and son remains the same, so the ratio is still 31:12.
c) Age of father after 10 years to age of son after 6 years: The father's age after 10 years will be 62 + 10 = 72 years, and the son's age after 6 years will be 24 + 6 = 30 years. The ratio is 72:30, which can be simplified to 12:5.
d) Age of father to age of son when the father was 30 years old: Since the father's age is given at that time, the ratio is 30:24, which can be simplified to 5:4.
Distance covered in 1 hour
If Rahul covers 10 km in 12 minutes, we can calculate the distance covered in 1 hour (60 minutes) using proportion:
12 minutes / 10 km = 60 minutes / x km
12 minutes × x = 60 minutes × 10 km
x = (60 minutes × 10 km) / 12 minutes
x = 50 km
Therefore, Rahul covers a distance of 50 km in 1 hour.
a) 4: x = 20: 35
4 × 35 = 20 × x.
140 = 20x.
x = 7.
b) x: 19 = 142: 71 x × 19 = 142 × 71.
19x = 10082.
x ≈ 530.63.
Given that the first, second, and fourth terms of a proportion are 6, 18, and 25 respectively,
6 × 25 = 18 × x.
150 = 18x.
x ≈ 8.33.
Ravi purchases 20 pens for Rs 300, so the price per pen is Rs 300 / 20 = Rs 15 per pen.
Manish buys 14 pens for Rs 168, so the price per pen is Rs 168 / 14 = Rs 12 per pen.
Since Rs 12 < Rs 15, Manish got the pens cheaper.
Price of cloth
3 meters / Rs 79.50 = 15 meters / x
3 meters × x = 15 meters × Rs 79.50
x = (15 meters × Rs 79.50) / 3 meters
x = Rs 397.50
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form a seven-letter word by mixing up the letters in the word capture. (a) how many ways can you do this? 5040 correct: your answer is correct. (b) how many ways can you do this if all the vowels have to be at the beginning? incorrect: your answer is incorrect. (c) how many ways can you do this if no vowel is isolated between two consonants?
(a) There are 7 letters in the word "capture", so we can arrange them in 7! = 5040 ways.
(b) If all the vowels have to be at the beginning, we have to consider the arrangement of the 4 consonants (C, P, T, R) and the arrangement of the 3 vowels (A, U, E) separately. The 3 vowels can be arranged in 3! = 6 ways, and the 4 consonants can be arranged in 4! = 24 ways. So the total number of arrangements where all the vowels are at the beginning is 6 x 24 = 144.
(c) If no vowel is isolated between two consonants, we have to consider the arrangement of the consonants and the arrangement of the vowels separately again. There are 5 places where we can put the vowels: at the beginning, after the first consonant, after the second consonant, after the third consonant, and at the end. Once we choose the positions for the vowels, we can arrange them in 3! = 6 ways. The consonants can be arranged in 4! = 24 ways. So the total number of arrangements where no vowel is isolated between two consonants is 5 x 6 x 24 = 720.
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I need to find X in this
Answer:
x is on the right side of the triangle
Step-by-step explanation:
Answer:
x = 28.8
Step-by-step explanation:
\(\frac{12}{25}\) = \(\frac{x}{60}\)
then cross multiply
25x = 720
then divide 25 from both sides of the equation
x = 28.8
suppose the real risk-free rate is 2.50% and the future rate of inflation is expected to be constant at 2.80%. what rate of return would you expect on a 5-year treasury security, assuming the pure expectations theory is valid? disregard cross-product terms, i.e., if averaging is required, use the arithmetic average.
Expected rate of return = 94.3%
What is inflation rate and risk free rate?Inflation rate is the rate of increase of prices of goods with the time being. It is also called devaluation of money. Risk free rate of return is an investment where possibility of risk is zero.
What rate of return would you expect?
given, real risk-free rate = 2.5% = 0.025
the future rate of inflation = 2.8% = 0.028
nominal risk-free rate = (1 + real risk-free rate) / (1 + inflation rate)
nominal risk-free rate = (1+ 0.025) / (1 + 0.028) = 0.9971
now, rate of return = [(1 + nominal risk-free rate) / (1 + inflation rate)] - 1
rate of return expected = [(1 + 0.9971) / (1 + 0.028)] - 1
= 0.943
expected rate of return = 94.3 %
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She will be running while her other team members swim and bike.Hannah will see a direction marker every five hundred meters during the race. There will be drinks stations set up every seven hundred meters. What is the shortest distance Hannah will have to run to see both a drink station and direction marker at the same location?
The shortest distance Hannah will have to run to see both a drink station and direction marker at the same location is 3500 meters.
What is the LCM?The least Common Multiple is the meaning of the acronym LCM. The lowest number that may be divided by both numbers is known as the least common multiple (LCM) of two numbers. It may also be computed using two or more real numbers.
Given:
She will be running while her other team members swim and bike.
Hannah will see a direction marker every five hundred meters during the race.
There will be drinks stations set up every seven hundred meters.
The shortest distance Hannah will have to run to see both a drink station and direction marker at the same location is,
= LCM of 500 and 700
= 3500 meters.
Therefore, the distance is 3500 meters.
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14.74x Land Unit Homework Assignment
Sharecropping (Banerjee, Gertler, Ghatak)
This problem will walk you through a principal agent contracting problem similar to that in the Banerjee, Gertler and Ghatak paper, Empowerment and Efficiency: Tenancy Reform in West Bengal (2002). You will not need the paper to do this problem, but you may find
it useful. Download the paper on the course website. Consider the following setting:
Tenant farms the land and applies effort, e
⚫ Tenant's outside option is 0, and tenant has wealth w
The landlord cannot observe e
⚫ Both the tenant and the landlord are risk-neutral
⚫ Effort is costly. The cost of effort is ce²
Two things can happen:
With probability e: Output is H
With probability 1-e: Output is 0 (zero)
The tenant and the landlord write a contract which specifies a payment from the
landlord to the tenant
Payment of h if output is H
- Payment of / if output is 0
⚫ Tenant and landlord maximize their expected utility, which is equal to expected income for the landlord, and expected income minus cost of effort for the tenant.
Part A: Basic and First Best
1. What are the possible differences between a sharecropping and a fixed rent contract?
(a) Landlord gets a fixed share of the output in sharecropping contract, but a fixed amount in fixed rent contract.
(b) Landlord gets a fixed amount in the sharecropping contract, but a fixed share in a fixed rent contract.
(c) Tenant gets a fixed share of the output in sharecropping contract, but a fixed amount in fixed rent contract.
1
In sharecropping contracts, the landlord receives a fixed share of the output, while in fixed rent contracts, the landlord receives a fixed amount. On the other hand, in sharecropping contracts, the tenant receives a fixed share of the output, whereas in fixed rent contracts, the tenant receives a fixed amount.
Sharecropping and fixed rent contracts are two different arrangements between landlords and tenants in agricultural settings. In a sharecropping contract, the landlord's compensation depends on the output of the land. Specifically, the landlord receives a fixed share or proportion of the output produced by the tenant. This means that if the tenant's effort leads to a high output, the landlord's share will be larger, and if the output is low or zero, the landlord's share will be correspondingly smaller. The tenant, in turn, receives a fixed share of the output as their compensation.
On the other hand, in a fixed rent contract, the landlord's compensation is predetermined and does not depend on the output. The landlord receives a fixed amount of rent regardless of the output produced by the tenant. This fixed amount ensures that the landlord's income remains stable and is not influenced by the variability of agricultural output. In this case, the tenant also receives a fixed amount as their compensation, which is unaffected by the output.
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