Step-by-step explanation:
Circumference of a circle = pi * diameter = 2 pi r
then
450 cm = 2 pi r
225 = pi r
225/pi = r =71.6 cm
A poll taken by GSS asked whether people are satisfied with their financial situation. A total of 478 out of 2038 people said they were. The same question was asked two years later, and 537 out of 1967 people said they were. Get a 90% confidence interval for the increase in the proportion of people who were satisfied with their financial condition. The CI is
We can say with 90% confidence that the increase in proportion of people satisfied with their financial situation is between 1.05% and 6.71%.
To calculate the confidence interval for the increase in proportion of people satisfied with their financial situation, we need to first calculate the proportions for both years:
Proportion in year 1 = 478/2038 = 0.2342
Proportion in year 2 = 537/1967 = 0.2730
The increase in proportion is:
0.2730 - 0.2342 = 0.0388
To calculate the confidence interval, we can use the formula:
CI = (point estimate ± (critical value x standard error))
The point estimate is the increase in proportion we just calculated: 0.0388
The critical value can be found using a z-table for a 90% confidence level. The z-value for a 90% confidence level is 1.645.
The standard error can be calculated using the formula:
sqrt[(p1(1-p1)/n1) + (p2(1-p2)/n2)]
where p1 and n1 are the proportion and sample size for year 1, and p2 and n2 are the proportion and sample size for year 2.
Plugging in the values, we get:
SE = sqrt[(0.2342(1-0.2342)/2038) + (0.2730(1-0.2730)/1967)] = 0.0174
Now we can plug in all the values to get the confidence interval:
CI = (0.0388 ± (1.645 x 0.0174)) = (0.0105, 0.0671)
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There are 120 pieces of candy in a bag. Fill in the table below to determine the number of pieces of each color
Answer:
Blue = 30
Green = 24
Red = 54
Orange = 12
Step-by-step explanation:
hahahshahhahahahahahauehfudbrog f ghg
FIND MEASUREMENT OF ANGLE P
m=n-x/5
m +x/5=n
x/5=n-m
x=5(n-m)
is this right?
Answer:
yeshhh doggo is bac from da weekend
Step-by-step explanation:
Answer:
1. B
2. A
3. 3
4. 2
5. 1
Step-by-step explanation:
Hope this helps!!
Love you all!!
the telephone lines serving an airline reservation office are all busy about 60% of the time. a if you are calling this office, what is the probability that you will complete your call on the first try? the second try? the third try? b if you and a friend must both complete calls to this office, what is the probability that a total of four tries will be necessary for both of you to get through?
The probability that a total of four tries will be necessary for both of you to get through is 0.1728.
What is probability?The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes certainty. A probability is a numerical representation of the possibility or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.
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The equation below has infinitely many solutions
12 + 4n = 4(n + 3)
Is that true?
Answer:
yes
Step-by-step explanation:
an infinite solution is when each side of the equation is equal. And when you distribute 4 to n and 3, it becomes 4n+12, and that is the same as the other side of the equation
At which root does the graph of f x x 5 3 * x 2 2 touch the X axis?
The root of the graph of f(x) =(x - 5)3(x + 2)2 touches the x-axis at -2,5
(x - 5)^3 has a power of 3 which is an ODD number. An ODD power means that the graph will cross through the x-axis.
(x + 2)^2 has a power of 2 which is an EVEN number. An EVEN power means that the graph will touch the x-axis.
Given: Function f(x) is (x - 5)3(x + 2)2
If a curve touches the x-axis then f(x) = 0
⇒ (x - 5)3(x + 2)2 = 0.
But if ab = 0 ⇒ either a = 0 or b = 0 or both zero.
⇒ (x - 5)3 = 0 and (x + 2)2 = 0
⇒ (x - 5) = 0 and x + 2 = 0
⇒ x = 5 and x = - 2.
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question 4)
Use the Ratio Test to determine whether the series is convergent
or divergent.
[infinity]
n
6n
n = 1
Identify
an.
Evaluate the following limit.
lim n → [infinity]
an +
VÀ HAMARINE MIN RA NHƯ T ■ grond. ■| MÕH 196 ■ CHRUDI O divergent Need Help? Read It 4. [-/4 Points] Use th
The series given in the question is
\($∑_{n=1}^{\infty}\frac{6^n}{n}$\)
and we have to determine whether it is convergent or divergent. This can be done with the help of the ratio test which is given as follows:
Ratio Test:
If \($\lim_{n\to\infty} \frac{a_{n+1}}{a_n}<1$\), then the series \($\sum_{n=1}^{\infty} a_n$\)is absolutely convergent.
If \($\lim_{n\to\infty} \frac{a_{n+1}}{a_n}>1$\), then the series \($\sum_{n=1}^{\infty} a_n$ is divergent.If $\lim_{n\to\infty} \frac{a_{n+1}}{a_n}=1$\), then the test fails and we cannot conclude anything.
So, here \($a_n=\frac{6^n}{n}$Hence, $$\lim_{n\to\infty} \frac{a_{n+1}}{a_n}=\lim_{n\to\infty} \frac{6^{n+1}}{n+1}.\frac{n}{6^n}$$$$=\lim_{n\to\infty}\frac{6}{\left(1+\frac{1}{n}\right)}$$$$=6$$\) As the value of the limit is greater than\($1$\), we can say that the series \($\sum_{n=1}^{\infty}\frac{6^n}{n}$\) is divergent. Now, we need to evaluate\($\lim_{n\to\infty} a_n$.\)
So, we have \($a_n=\frac{6^n}{n}$ Hence, $$\lim_{n\to\infty} a_n= \lim_{n\to\infty} \frac{6^n}{n}= \infty$$\)
Thus, \($\sum_{n=1}^{\infty}\frac{6^n}{n}$\) is divergent.
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in a sale nromal prices are reduced by 20%. a washing machine has a sale price of 464 by how much money is the normal price of a washing machine reduced
Answer:
$116
Step-by-step explanation:
please refer to the above
PLEASE HELP I BEG ASAP UWILL GET MARKED BRANLIEST
Answer:
3 C
4 B
5 B
6C
Step-by-step explanation:
3. the negative of the functiin reflects the original function on the x axis
4. multiplying by a number greater than 1 increases the slop of the original function
5. subtracting from x translates the function to the right
6. subtracting from f(x) translates the function down
James buys a shirt and a pair of socks on sale for 25% off. If the price of the shirt before the sale was $24 and he spent a total of $24, what was the original price of the socks? Enter your answer in the box.
Answer:
The price of the socks is dollar 8
Pls mark nrainliest
Answer:
$8
Step-by-step explanation:
Using the information we already know, we can form an equation:
Let x be the socks' original price.
\((24+x)\) × \(0.75=24\)
Divide both sides by 0.75
\(24+x=32\)
Subtract 24 from both sides
\(x=8\)
The socks' original price was $8.
I need help with these
The 15 and 9 units side lengths of the parallelogram ABCD, and the 36° measure of the acute interior angle, A indicates the values of the ratios are;
1. AB:BC = 5:3
2. AB:CD = 1:1
3. m∠A : m∠C= 1 : 4
4. m∠B:m∠C = 4:1
5. AD: Perimeter ABCD = 3:16
What is a ratio?A ratio is a representation of the number of times one quantity is contained in another quantity.
The shape of the quadrilateral ABCD in the question = A parallelogram
Length of AB = 15
Length of BC = 9
Measure of angle m∠A = 36°
Therefore;
1. AB:BC = 15:9 = 5:3
2. AB ≅ CD (Opposite sides of a parallelogram are congruent)
AB = CD (Definition of congruency)
AB = 15, therefore, CD = 15 transitive property
AB:CD = 15:15 = 1:1
3. ∠A ≅ ∠C (Opposite interior angles of a parallelogram are congruent)
Therefore; m∠A = m∠C = 36°
∠A and ∠D are supplementary angles (Same side interior angles formed between parallel lines)
Therefore; ∠A + ∠D = 180°
36° + ∠D = 180°
∠D = 180° - 36° = 144°
∠D = 144°
m∠A : m∠C = 36°:144° =1:4
m∠A : m∠C = 1:4
4. ∠B = ∠D = 144° (properties of a parallelogram)
m∠B : m∠C = 144° : 36° = 4:1
5. AD ≅ BC (opposite sides of a parallelogram)
AD = BC = 9 (definition of congruency)
The perimeter of the parallelogram ABCD = AB + BC + CD + DA
Therefore;
Perimeter of parallelogram ABCD = 15 + 9 + 15 + 9 = 48
AD:Perimeter of the ABCD = 9 : 48 = 3 : 16
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question 7(multiple choice worth 2 points) (adding and subtracting rational numbers mc) aaron filled the bird bath with 72 ounces of water. a group of blue jays came by and drank 6.19 ounces. then a vulture swooped in and drank ounces of the water. how much water is left in the bird bath? 53.21 ounces 63.70 ounces 78.41 ounces 90.79 ounces
After the blue jays drank 6.19 ounces and the vulture drank an unknown amount of water from the bird bath, there would be 53.21 ounces of water left.
To find the amount of water left in the bird bath, we need to subtract the total amount of water consumed from the initial amount of water.
Given that Aaron filled the bird bath with 72 ounces of water and the blue jays drank 6.19 ounces, we subtract 6.19 from 72 to get the remaining amount of water before the vulture drank.
72 - 6.19 = 65.81 ounces
Now, we need to subtract the amount of water the vulture drank from the remaining amount. The problem statement does not provide the specific amount consumed by the vulture, so we subtract an unknown value from 65.81 ounces.
If we denote the unknown amount as x, the equation would be:
65.81 - x
Since the answer choices do not provide the specific value for the vulture's consumption, we cannot determine the exact amount left in the bird bath. However, based on the given answer choices, 53.21 ounces is the closest option to the remaining amount of water.
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Give an example of a function that is a dilation and a reflection of the parent function.
Answer: f(x) = -1/2(x+3)
Example: g(x) = -1/2(-x-3)
This function is a dilation and a reflection of the parent function f(x) because when graphed, the two functions have the same shape but are reflected over the y-axis and are half the size of the original.
henry, a construction worker, specializes in the restoration of old buildings. over time, he has developed a chronic cough and chest pain. this is most likely due to exposure to henry, a construction worker, specializes in the restoration of old buildings. over time, he has developed a chronic cough and chest pain. this is most likely due to exposure to volatile organic compounds asbestos ammonia lead
A chronic cough and chest pain that Henry has developed as he worked for the restoration of old buildings due to exposure to volatile organic compounds asbestos ammonia are symptoms of an illness called Silicosis.
What is Silicosis?Silicosis is a long-term lung disease generated by inhaling large amounts of crystalline silica dust, generally over many years. Silica is a substance naturally formed in certain types of stone, rock, sand and clay. Working with these materials may develop a very fine dust which can be easily inhaled.
This illness generates when a construction worker breathes in silica particles, that can penetrate into the lungs and cause inflammation and scarring. In most cases, treatment for silicosis is focused at alleviating the symptoms, such as a chronic cough, shortness of breath, and chest pain.
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An airplane takes off 12.5 miles south of a city and flies due north at a constant speed of 170 miles per hour. What is the planes position relative to the city after 45 minutes
Please help. Susie ran a race. She ran 5 miles an hour and the race took her T hours to complete how long was the race and write your answer as an expression.
Answer:
The expression you use to find the amount of miles would be 5xT=X miles.
or 5t
The school band is collecting
coupons that will save money on
new uniforms. They have collected
8,952 coupons and need a total of
15,000. How many are yet to be
collected?
Answer: 6,048
Step-by-step explanation:
15,000-8,952=6,048
Answer:
4/£
6048
Step-by-step explanation:
just subtract 8952 from 15,000
I need this answered
if the scale upon which points a, b, c, and d are shown is an ordinal scale, we can meaningfully say
If the scale upon which points a, b, c, and d are shown is an ordinal scale, we can meaningfully say that the order of the points represents the order of the underlying variable being measured.
When using an ordinal scale, the order of the points (a, b, c, and d) represents the relative ranking or ordering of the underlying variable being measured. This means we can determine which point is higher or lower in the ranking. For example, if the variable being measured is satisfaction level, we can say that point "c" represents higher satisfaction than point "a" or "b." However, with an ordinal scale, we cannot make precise quantitative comparisons between the points or determine the exact magnitude of the differences between them. The scale only allows us to establish the relative order or ranking of the points.
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The sum of two numbers is
– 19. One number is 17
more than the other one. Find the numbers.
Answer:
-36=x
Step-by-step explanation:
-19=x+17
-17 -17
-36=x
Answer:
-36
Step-by-step explanation:
-19+-36+17
-19=17- -36
-19=-19
Ans=-36
if u play ro-b-lox blox-burg, answer!! dont answer if u dont.. but is it fair if i say abc tk help me make snowmans and each snowman is 280 and that person only did like 3 so i gived them 200.. because it was nun.. then they called me a scammer so is it fair?
Answer:
You probably should have gave them 2/3 of what they did. I wouldn't call you a scammer, but it was not fair.
Mehmer has a stillity function (x,y) = 2x² + y Answer the following questions. Consider that the price of x is 100 TL, the price of y is 25 TL and monthly income is "M" TL Mehmet uses all of his income each month to purchase x and y. Solve the constraint optimization problem and find the expressions for x'.y' and 2". Confirm the second order condition for part (a) using bordered Hessian Matrix. Deive the value function. Suppose his income increased by one unit. How does the optimal value of u(x, y) i Answer by using the value function. Answer by using Envelope Theorem. (e) Suppose the price of y increased by one unit. How does the optimal value of u(x, y) change? Answer by using Envelope Theorem. (Hint: replace 25 with p, and proceed)
The constraint optimization problem can be solved by determining the expressions for x' and y' and confirming the second-order condition using the bordered Hessian Matrix. The value function and the Envelope Theorem can be used to analyze the effects of changes in income and prices on the optimal value of u(x, y).
To find the expressions for x' and y', we set up the Lagrangian function:
\(L(x, y, \lambda) = 2x^2 + y - \lambda (p_x * x + p_y * y - M)\)
Taking partial derivatives with respect to x, y, and λ, we get:
\(\partial L/\partial x = 4x - \lambda p_x = 0\\\partial L/\partial y = 1 - \lambda p_y = 0\\p_x * x + p_y * y = M\)
Solving these equations simultaneously, we find the optimal values of x and y. Differentiating the first-order conditions, we obtain the second derivative expressions, denoted as 2". The bordered Hessian matrix can be used to confirm the second-order condition for part (a).
To derive the value function, we substitute the optimal values of x and y into the utility function: u(x, y) = 2(x')² + y'.
Suppose the income increases by one unit. We can determine the effect on the optimal value of u(x, y) by using the value function and considering the change in the optimal values of x and y.
Applying the Envelope Theorem, we can evaluate the change in the optimal value of u(x, y) by taking the derivative of the value function with respect to income, while keeping the prices constant.
Similarly, if the price of y increases by one unit, we can analyze the impact on the optimal value of u(x, y) using the Envelope Theorem and considering the change in the optimal values of x and y, with the price of y denoted as p.
These steps will help us understand the changes in the optimal values of u(x, y) under different scenarios based on the given utility function, prices, and income.
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Lines p and q are parallel.
Parallel lines p and q are cut by transversals r and s. At the intersection of lines p, r, and s, clockwise from top left, the angles are blank, 93 degrees, blank, blank, 1, 60 degrees. At the intersection of lines q and s, the angles are blank, 2, blank, blank. At the intersection of r and q, the angles are 3, blank, blank, blank.
What is the measure of angle 2 in degrees?
27°
33°
60°
93°
Answer:
It's 60 degrees. if you look carefully at the image, there is 2 angles. it can't be 93 since it is way too narrow.
Step-by-step explanation:
I'm on the question on edge, ill keep you updated if it's wrong.
update: it was correct. hope this helped!
Based on the alternate interior angle theorem, the measure of angle 2 in the diagram given is: C. 60°
What is the Alternate Interior Angles Theorem?The alternate interior angle theorem states that the measure of two alternate interior angles are congruent.
Angle 2 and 60° are alternate interior angles, therefore:
Angle 2 = 60° [alternate interior angle theorem].
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Find the total surface area of this triangular prism.
Answer:
look at the photo.....................The surface area of the given triangular prism = 920 square cm.
In the given triangular prism
S1 = 25 cm
S2 = 25 cm
S3 = 14 cm = base
Height = 24 cm
length = 10 cm
Perimeter = S1 + S2+ S3
= 25+25+14
= 64 cm
Area of base = length x base
= 10x14
= 140 square cm
Since we know that,
Surface area of triangular prism = (Perimeter × Length) + (2 × Base Area)
= (64x10) + 2x140
= 640 + 280
= 920 square cm
Hence,
The required surface area = 920 square cm.
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what is a polygon with all sides and angles congruent
A regular polygon is a polygon with all sides and angles congruent. It exhibits symmetry and uniformity in its sides and angles, creating a visually appealing shape.
A polygon with all sides and angles congruent is called a regular polygon. In a regular polygon, all sides have the same length, and all angles have the same measure. This uniformity in the lengths and angles of the polygon's sides and angles gives it a symmetrical and balanced appearance.
Regular polygons are named based on the number of sides they have. Some common examples include the equilateral triangle (3 sides), square (4 sides), pentagon (5 sides), hexagon (6 sides), and so on. The names of regular polygons are derived from Greek or Latin numerical prefixes.
In a regular polygon, each interior angle has the same measure, which can be calculated using the formula:
Interior angle measure = (n-2) * 180 / n
Where n represents the number of sides of the polygon.
The sum of the interior angles of any polygon is given by the formula:
Sum of interior angles = (n-2) * 180 degrees
Regular polygons have several interesting properties. For instance, the
exterior angles of a regular polygon sum up to 360 degrees, and the measure of each exterior angle can be calculated by dividing 360 degrees by the number of sides.
Regular polygons often possess symmetrical properties and are aesthetically pleasing. They are commonly used in design, architecture, and various mathematical applications.
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Question 4 of 10
If two triangles are congruent, which of the following statements must be
true? Check all that apply.
O A. The triangles have the same shape, but not the same size.
B. The corresponding sides of the triangles are congruent.
C. The corresponding angles of the triangles are congruent.
D. The triangles have the same shape and size.
Solve: 2.3 = v + 0.47 v = _____
Answer:
2.3=v+0.47v=
We move all terms to the left:
2.3-(v+0.47v)=0
We add all the numbers together, and all the variables
-(+1.47v)+2.3=0
We get rid of parentheses
-1.47v+2.3=0
We move all terms containing v to the left, all other terms to the right
-1.47v=-2.3
v=-2.3/-1.47
v=1+0.83/1.47
Answer:
\(v = 1.564\)
Step-by-step explanation:
\(1v + 0.47v = 2.3\)
\( = > 1.47v = 2.3\)
\( = > v = \frac{2.3}{1.47} = 1.564\)
Can someone help with please and thank you
1) Translation
2) Rotation
3) Translation
4) None of these
Using the 100/50/20 Rule for daily fluid requirements (DFR). Calculate the following questions, do not round the patient's weight but round all final answers to a whole number. 1-10 kg = 100ml/kg/day 11-20 kg = 50ml/kg/day (+ 1000 mL/day for 1* 10kg) Over 20kg = 20mL/kg/day (1500 mL/day for 1s 20kg) 18. An infant weighs 11 pounds. What is the required amount of fluid per day in ml? I 19. A child weighs 31 lbs and 8 ozs. What is the required amount of fluid per day in ml? If no oral fluids are consumed, what is the hourly IV flow rate to maintain proper hydration?
18. An infant weighs 11 pounds which is equivalent to 4.98 kg. Using the 100/50/20 Rule, the required amount of fluid per day for an infant between 11-20 kg is 50 ml/kg/day. So, the required amount of fluid per day in ml is 4.98 kg x 50 ml/kg/day = 249 ml/day.
19. A child weighs 31lbs and 8 ozs which is equivalent to 14.21 kg. Using the 100/50/24 Rule, the required amount of fluid per day for a child over 20 kg is 20 ml/kg/day. So, the required amount of fluid per day in ml is 14.21 kg x 20 ml/kg/day = 284.2 ml/day.
If no oral fluids are consumed, the hourly IV flow rate to maintain proper hydration would be: 284.2 ml/day / 24 hours/day = 11.8 ml/hour.
Daily Fluid Requirements (DFR)The question is about fluid requirements for infants and children, and it is using the 100/50/20 Rule for Daily Fluid Requirements (DFR) to calculate the required amount of fluid per day for different weight ranges. The 100/50/20 Rule is a guideline used to determine the appropriate amount of fluid that infants and children should receive on a daily basis based on their weight. The rule states that for infants and children up to 10 kg, the recommended fluid intake is 100 ml/kg/day, for those between 11-20 kg it is 50 ml/kg/day, and for those over 20 kg it is 20 ml/kg/day.
The question also asking about the hourly IV flow rate to maintain proper hydration if no oral fluids are consumed.
This subject is part of pediatrics, more specifically in the field of fluid and electrolyte balance and management.
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