The simplest choice is a linear transformation, for example, the one given by the
matrix [tex]\left[\begin{array}{ccc}-1/2&1&0\\-1/2&0&1\end{array}\right][/tex]
What is spatial coordinates and plane coordinates?When compared to pixel coordinates, spatial coordinates provide for a finer level of image position specification. The pixel coordinate system, for example, treats a pixel as a discrete unit that is uniquely recognized by an integer row and column pair, such as (3,4). The pixel coordinates are the default way that spatial coordinates of a picture are related. In row 5, column 3, for instance, the center of the pixel has spatial coordinates of x = 3 and y = 5, for example. The coordinates are inverted, so keep that in mind.When you represent a three-dimensional object graphically in the plane con paper, the blackboard, or a computer screen), you have to transform spatial coordinates,
[tex]$\mathrm{x} 1$ & \\[/tex]
[tex]$\mathrm{x} 2$[/tex] & into plane coordinates
[tex]$\mathrm{x} 3$[/tex]& [tex]$\mathrm{y} 1$[/tex]& [tex]$\mid$ \\[/tex]
[tex]$\mathrm{x}$[/tex] &[tex]$\mathrm{y} 2$[/tex] &
The simplest choice is a linear transformation, for example, the one given by the
matrix [tex]\left[\begin{array}{ccc}-1/2&1&0\\-1/2&0&1\end{array}\right][/tex]
The complete question is,
When you represent a three-dimensional object graphically in the plane (on paper, the blackboard, or a computer screen), you have to transform spatial coordinates | x 1 | | x 2 | into plane coordinates | y 1 |. | x 3 | | y 2 | The simplest choice is a linear transformation, for example, the one given by the matrix | -1/2 1 0 0 | 1 |.
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Which triangles could not be similar to triangle ABC?
4cm, 3cm, 5cm
If the ratio of their corresponding sides are identical, then the triangles are similar to each other. Triangle ABC, GHI and JKL have similar ratio of their corresponding sides. Thus, Triangle ABC,JKL and GHI are similar to each other.
It is not necesary that sides are equal in similar triangles but it is mandatory to have all the angles are identical in similar triangles.
If the length of corresponding sides of the triangle are in the same proportion then the triangles are similar to each other.
Therefore,
Sides of the triangle ABC and triangle GHI are in proportion, hence both the triangles are similar to each other.
Sides of the triangle ABC and triangle JKL are in proportion, hence both are similar to each other.
Similarly, triangle JKL and GHI both are similar to each other.
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Part A
A rectangular prism measures 7 1/2cm by 12 cm by 15 1/2cm.
Calculate the number of cubes with edge length 1/2 cm that fit in this prism
cubes____
Answer:11160
i calculated
What are the solutions to 4lx+8l=4
The two solutions that satisfy the equation 4lx+8l=4 are -9 and -7.
What is the solution of an equation?A solution is the assignment of values to the unknown variables that results in the equation's equality being true. In other words, a solution is a value or a set of values (one for each unknown) that, when substituted for the unknowns, solves the equation.To solve an equation, use the properties of real numbers as those that apply to variables to manipulate the equation.Given the equation,
4lx+8l=4
|x+8| = 4/4
|x+8| = 1
x + 8 = ± 1
When x = + 1
Then,
x = 1 - 8
x = -7
When x = - 1
x = -1 - 8
x = -9
Therefore the two solution of equation is -9 and -7.
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Consider the problem: A shopper buys cat food in bags of 3 lbs. Her cat eats 3_4lb each week. How many weeks does one bag last?
Using division operation, the number of weeks a bag of cat food lasts is 4 weeks.
What is a division operation?Division operation is one of the four basic mathematical operations.
The division operation produces a result known as the quotient.
The quotient results when the dividend is divided by the divisor.
The quantity in a bag of cat food = 3lbs
The quantity that the cat eats per week = 3/4 = 0.75
The number of weeks that the bag of 3lbs will last = 4 (3/0.75)
Thus, we can conclude that the shopper's one bag of cat food will last her cat for 4 weeks.
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Completion Question:Consider the problem: A shopper buys cat food in bags of 3 lbs. Her cat eats 3/4lb each week. How many weeks does one bag last?
Dr. Leona Williams, a well-known plastic surgeon, has a reputation for being one of the best surgeons for reconstructive nose surgery. Dr. Williams enjoys a rather substantial degree of market power in this market. She has estimated demand for her work to be: Q = 480 – 0.2P where Q is the number of nose operations performed monthly and P is the price of a nose operation. What is the inverse demand function for Dr. Williams’ services? What is the marginal revenue function? The average variable cost function for reconstructive nose surgery is estimated to be: AVC = 2Q2 – 15Q + 400 where AVC is the average variable cost (measured in dollars), and Q is the number of operations per month. The doctor’s fixed cost per month is $8,000. If the doctor wishes to maximize her profit, how many nose operations should she perform each month? What price should Dr. Williams charge to perform a nose operation? How much profit does she earn each month?
The inverse demand function is P = 2400 + 5Q
The Marginal Revenue function is MR = 5QThe number of nose operations is 15The price per month is $2475Dr. Williams earns $19750 in profit each monthHow to determine the inverse demand functionGiven that
Q = 480 - 0.2P
We simply make P the subject of the formula
So, we have
0.2P = 480 - Q
Divide by 0.2
P = 2400 + 5Q
The marginal revenue functionTo find the marginal revenue function, we can use the inverse demand function P = 2400 + 5Q, and take the derivative of this function with respect to Q.
The derivative of P with respect to Q is dP/dQ = 5. This represents the change in price for a one unit change in the quantity of operations performed.
So the Marginal Revenue function is MR = dP/dQ * Q = 5Q
The number of nose operationsTo maximize profit, the doctor should equate marginal revenue to marginal cost, which is
MC = dAVC/dQ
So, we have
MC = d(2Q² - 15Q + 400)/dQ
Evaluate
MC = 4Q - 15.
So, we have
5Q = 4Q - 15
Q = -15
Take the absolute value
Q = 15
So, the number of operations is 15
The price for each operationWe have
P = 2400 + 5Q
This gives
P = 2400 + 5 * 15
Evaluate
P = 2475
The monthly profitTo find the profit, we need to subtract the total cost from the total revenue.
The total revenue is found by multiplying the price by the quantity of operations performed: TR = P * Q = 2475 * 15 = 37125
The total variable cost is found by multiplying the average variable cost by the quantity of operations performed: TVC = AVC * Q = (2Q^2 - 15Q + 400) * Q = 2Q^3 - 15Q^2 + 400Q
The total fixed cost is the fixed cost that doesn't change regardless of the level of output : TFC = $8000
The total cost is the sum of the total variable cost and total fixed cost: TC = TVC + TFC = 2Q^3 - 15Q^2 + 400Q + $8000
The profit is the difference between total revenue and total cost:
π = TR - TC = 37125 - (2Q^3 - 15Q^2 + 400Q + $8000)
When Q = 15,
profit is π = 37125 - (2(15)^3 - 15(15)^2 + 400(15) + $8000)
= 19750
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Compute the expression shown below.
(3.0 x 10²) ³
Submit your answer in scientific notation.
Answer: 2.7*10^7
Step-by-step explanation:
due to the rules of exponents you would multiply 10^2 times the 3 making it 10^6. 3^3 is 27 but scientific notation numbers cannot be more than ten. so you add a decimal in-between making 2.7 for and you would add the one 10 to the original exponents making it 10^7.
Two numbers have the sum of 19. If one of the numbers is c, express the other number in terms of c. The other number is
Two numbers have the sum of 19. If one of the numbers is c, express the other number in terms of c. The other number is 19 - c.
Given: two numbers have the sum of 19
Let: c be one of those numbers
We want to express the other number in terms of c
The other number = 19 - c
Given two numbers, we want to express one of them in terms of the other. We can let one of the numbers be represented by the variable c. Since the sum of the two numbers is 19, the other number can be expressed as 19 minus c. Therefore, the other number can be written as 19 - c.
We are given two numbers and we want to express one of them in terms of the other. We can represent one of the numbers with the variable c. Since the sum of the two numbers is 19, the other number can be expressed as 19 minus c. In other words, the other number can be written as 19 - c. This means that if the value of c is known, the value of the other number can be calculated by subtracting c from 19. For example, if c is 10, then the other number is 19 - 10 = 9. Similarly, if c is 5, then the other number is 19 - 5 = 14. Therefore, the other number can be expressed as 19 - c.
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t+7.87>9.87 solve for t
[tex]t+7.87 > 9.87[/tex]
Subtract 7.87 from both sides:
[tex]t+7.87-7.87 > 9.87-7.87[/tex]
Answer:
[tex]t > 2[/tex]
Answer:
[tex] \sf \: t > 2[/tex]
Step-by-step explanation:
Now we have to,
→ find the required value of t.
The inequation is,
→ t + 7.87 > 9.87
Then the value of t will be,
→ t + 7.87 > 9.87
→ t > 9.87 - 7.87
→ [ t > 2 ]
Hence, the value of t is 2.
Lisa accidentally spilled a quart of water into her swimming pool. The pool is rectangula: and measures 12 ft by 20 ft. By how much did the water level in the pool increase?
(nearest hundred thousandth)
Answer:
The answer is 0.165 inches.
Step-by-step explanation:
The volume of a rectangular pool can be calculated as the product of its length, width, and depth. To find out how much the water level increased, we'll calculate the volume of one quart of water and compare it to the volume of the pool.
One quart is equivalent to 0.946 liters, and 1 liter of water has a volume of 1000 cubic centimeters. Therefore, one quart of water has a volume of 0.946 liters x 1000 cubic centimeters/liter = 946 cubic centimeters.
Since 1 cubic foot is equivalent to approximately 28,317 cubic centimeters, the volume of one quart of water in cubic feet is:
946 cubic centimeters / 28,317 cubic centimeters/cubic foot = 0.033 cubic feet.
The volume of the pool can be calculated as:
12 ft x 20 ft x depth (in feet) = 240 cubic feet
So, if the pool is 12 ft x 20 ft, the water level increased by:
0.033 cubic feet / 240 cubic feet = 0.0001375 feet = 0.165 inches.
Therefore, the water level in the pool increased by approximately 0.165 inches.
I would greatly appreciate Brainliest.
Have a nice day.
prove that if p is a prime and g is a group of order p a for some a e z , then every subgroup of index p is normal in g. deduce that every group of order p 2 has a normal subgroup of order p.
A subgroup of index p must contain all elements of g, hence it is normal. Therefore, every group of order p2 has a normal subgroup of order p.
Let p be a prime and g be a group of order p a for some a ∈ Z.
First, we prove that every subgroup of index p is normal in g.
Since the order of g is p a , and the index of a subgroup of g is p, the subgroup must contain all elements of g. Thus, the subgroup is normal in g.
We can now deduce that every group of order p2 has a normal subgroup of order p.
Since the order of a group of order p2 is p2, we can divide it into two subgroups: one of order p, and one of order p. Since the subgroup of order p has an index of p, it must be normal in the group of order p2. Therefore, every group of order p2 has a normal subgroup of order p. Every group of order p2 has a normal subgroup of order p due to the fact that a subgroup of index p must contain all elements of g.
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Before leaving the grocery store, Kenny wrote the y-coordinate first and the x-coordinate second when telling his sister where to meet him. To his surprise, she was at the right location. If his sister did not make an error, where did the siblings meet ?- Explain how you know.
If the both coordinates are equal and has same sign then interchanging them will not have any effect and they will meet at the right location
How to find where they will meetInterchanging the x coordinate for the y coordinate when both are equal and have same sign will create no effect and hence this will not affect their meeting place
In a situation where the coordinates are different, interchanging the two coordinates will lead to meeting at a different point.
The point of meeting when the coordinates are different either in sign or in value is at reflection over the line y = x
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1)
Σ i² =
De i=1 a i=8
For n = 8, the sum of squares from 1 to 8 would be:
Σ i² = 8(8 + 1)(2(8) + 1) / 6 = 204.
What is the significance of summation?The act of adding anything up is called summarizing. To produce an action potential in the nervous system, numerous stimuli that are each individually subthreshold must be combined to reach a suprathreshold level (a response). Usually, a sum of numerous terms is indicated by the symbol "sigma." To include all terms that must be taken into account when computing the sum, this symbol is typically followed by an index that varies.
The summation notation "Σ" is used to represent the sum of a sequence of numbers. The expression "Σ i²" means the sum of the squares of the numbers from i=1 to i=8.
The formula to find the sum of the squares from 1 to n is given by:
Σ i² = n(n + 1)(2n + 1) / 6
So, for n = 8, the sum of squares from 1 to 8 would be:
Σ i² = 8(8 + 1)(2(8) + 1) / 6 = 204.
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Suppose f(x) is continuous and defined for all real numbers. You are given that f(x) has critical points at x = -1 and x = 0. If f'(x) is positive in the interval x < -1, negative in the interval -1 < x < 0, and positive in the interval x > 0, is the point where x = -1 the location of a relative maximum, minimum, or neither? Maximum Minimum Neither
The point where x = -1 is the location of a relative maximum.
What is the critical point?
The concept of "critical point" is used in a lot of different ways, particularly, the most common way in which it is used is to describe the points where the slope of the tangent line is zero in continuous functions.
A critical point is a point where the first derivative of a function is equal to zero or is undefined.
A relative maximum occurs when the first derivative is zero and the second derivative is negative, while a relative minimum occurs when the first derivative is zero and the second derivative is positive.
The given information tells us that f'(x) is positive in the interval x < -1, negative in the interval -1 < x < 0, and positive in the interval x > 0.
This means that f'(x) is increasing in the interval x < -1, decreasing in the interval -1 < x < 0, and increasing in the interval x > 0. Therefore, at the critical point x = -1, f'(x) is zero and f''(x) is negative.
This means that the function changes from an increasing function to a decreasing function, indicating that the point where x = -1 is the location of a relative maximum.
Hence, the point where x = -1 is the location of a relative maximum.
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An angle measures 69.2° less than the measure of its complementary angle. What is the measure of each angle?
Based on the definition of complementary angles, he measure of each of the angles are: 10.4 degrees and 79.6 degrees.
What are Complementary Angles?Complementary angles are defined as any two angles whose sum will be equal to 90 degrees when added together.
Therefore, let x be the measure of the angle.
According to the problem statement, the angle measures 69.2° less than the measure of its complementary angle.
So we have x + (x + 69.2) = 90
By simplifying the equation:
2x + 69.2 = 90
2x = 90 - 69.2
2x = 20.8
x = 20.8/2 = 10.4
So the angle measures 10.4 and the complement of angle is (10.4 + 69.2) = 79.6.
Thus, the measure of each of the angles are: 10.4 degrees and 79.6 degrees.
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FIND THE VALUES OF X AND Y
Answer:Taking into account that X + Y = X + X + B = A, one can obtain the following formulas for finding X and Y:
X = (A – B) / 2.
Y = X + B = (A + B) / 2.
Step-by-step explanation:
Automobiles arrive at a vehicle equipment inspection station according to a Poisson process with rate of alpha =10 hour. Suppose that with probability .5 an arriving vehicle will have no equipment violations. a., What is the probability that exactly ten arrive during the hour and all ten have no violations? b. What is the probability that ten "no-violation" cars arrive during the next hour?
In both cases, the probability would be 0.0045%.
What is Poisson's distribution?
The Poisson distribution is used to model the number of times an event occurs within a given time interval with a known average rate of occurrence. The probability of exactly k occurrences in a Poisson process is given by the equation:
P(k; λ) = (λ^k * e^-λ) / k!
Where λ is the average rate of occurrences and k is the number of occurrences.
a. In this case, the average rate of arrivals is alpha = 10 per hour, and the probability of no equipment violations is 0.5. The probability that exactly ten vehicles arrive during the hour and all ten have no violations is:
P(10; 10) * (0.5)^10 = 0.000045 or 0.0045%
b. The probability that ten "no-violation" cars arrive during the next hour is:
(10 * 0.5)^10 * e^(-10*0.5) / 10! = 0.000045 or 0.0045%
This probability is the same as in a. because it's the probability of exactly ten "no-violation" cars arriving during the next hour given that the number of cars arriving follows a Poisson distribution with an average rate of arrival of 10 per hour.
Hence, in both cases, the probability would be 0.0045%.
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Find the quotient
Thank u!
The result of the quotient expression as required to be determined in the task content is; 2^(8x + 3).
What is the result of the quotient expression?It follows from the laws of indices that 8 = 2³.
On this note, the given expression; 8^(3x + 1) ÷ 2^x can be solved as follows;
2^( 3 (3x + 1) ) ÷ 2^x
= 2^( 9x + 3 ) ÷ 2^x
= 2^(9x + 3 - x)
= 2^(8x + 3)
Ultimately, the result of the quotient is; 2^(8x + 3).
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Joey makes $9 an hour at Burger Palace. He worked 5 hours on Friday
and 8 hours on Saturday. Write an expression and use the distributive
property to find how much Joey made.
Answer:
9(5 + 8)
Step-by-step explanation:
A clothing manufacturer has some pure silk thread and some thread that is 85% silk. How many kilograms of each must be woven together to make 75 kg of cloth that is 94% silk?
The number of kilograms of each must be woven together to make 75 kg of cloth which is 94% silk is:
30 kg of pure silk thread and 45 kg of some thread.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 3 = 9 is an equation.
We have,
The amount of pure silk thread= x
The amount of some thread = y
The amount of silk pure silk thread= 100%
The amount of silk in some thread = 85%
Now,
Two equations are:
x + y = 75 _____(1)
x = 75 - y _____(2)
x + 0.85y = 0.94 x 75 _____(3)
Substituing (2) in (3)
75 - y + 0.85y = 70.5
75 - 70.5 = y - 0.85y
4.5 = 0.15y
y = 30
Now,
x = 75 - 30
x = 45
Thus,
30 kg of pure silk thread and 45 kg of some thread.
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Triangular base with base edge 12 inches and base height 9 inches, and volume 108 cubic inches.
This matches the given volume of 108 cubic inches.
What is volume?Volume is a measure of the amount of space an object or substance occupies. It is measured in units such as liters, gallons, cubic meters, and milliliters. It is often used to measure the size of a container, the amount of a material, or the size of a space. Volume is an important property for understanding physical objects, as it helps to determine mass and density.
The volume of a triangular prism can be calculated by taking the area of the base, which is the area of an equilateral triangle (all sides equal) multiplied by the height of the prism. In this case, the area of the triangle is ((√3/4)*(12^2)) = 108 square inches and the height is 9 inches, so the volume is 108*9 = 108 cubic inches. This matches the given volume of 108 cubic inches.
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Ellie purchased a laptop for $1,400, but she still owes $600 which she borrowed to purchase the laptop. What is her equity in the case of the laptop?
Which of the four do I pick?
If Ellie purchased a laptop for $1,400, but she still owes $600 which she borrowed to purchase the laptop. Her equity in the case of the laptop is; A. $1400+ $600 = $2000.
How to find her equity?Using this formula to determine her equity
Equity = Cost of laptop + Amount owes
Where:
Cost of laptop = $1,400
Amount owes = $600
Let plug in the formula
Equity = $1,400 + $600
Equity = $2,000
Therefore we can conclude that the correct option is A.
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Suppose 3 < a < 7 and 5 < b < 9 Find all possible values of each expression
1.a+b
2.a-b
3.ab
4.a/b
The possible values for each expression are given as follows:
1. 8 ≤ a+b ≤ 16
2. -6 ≤ a - b ≤ 2
3. 15 ≤ ab ≤ 63
4. 1/3 ≤ a/b ≤ 7/5.
How to obtain the possible values of each expression?For the sum we have that:
The smallest value is assumed when a and b have the smallest values, hence a + b = 8.The largest value is assumed when a and b have the largest values, hence a + b = 16.For the subtraction, we have that:
The smallest value is assumed with highest b and lower a, hence: 3 - 9 = -6.The highest value is obtained with highest a and lowest b, hence: 7 - 5 = 2.For the multiplication we have that:
The smallest value is assumed when a and b have the smallest values, hence 3 x 5 = 15The largest value is assumed when a and b have the largest values, hence 7 x 9 = 63.For the division, we have that:
Lowest: a/b = 3/9 = 1/3.Higher: a/b = 7/5.More can be learned about expressions at https://brainly.com/question/723406
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Find the volume of the solid whose base is bounded by the circle
x2 + y2 = 4
the cross sections perpendicular to the x-axis are squares.
The volume of the solid is 32/3.
The volume of the solid whose base is bounded by the circle x2 + y2 = 4 and the cross sections perpendicular to the x-axis are squares can be calculated using the formula for the volume of a solid of revolution. This formula states that the volume is equal to the integral of the area of the cross sections from the lower limit to the upper limit.
Since the cross sections are squares, the area of each cross section is given by the equation A = x2. The lower limit is given by the equation x2 + y2 = 4, which is x=-2, and the upper limit is x=2. Thus, the volume is given by the integral ∫(-2)2x2dx = 8∫x2dx = 8(x3/3)|(-2)2 = 8(2^3/3 - (-2)^3/3) = 8(8/3 - -8/3) = 32/3. Therefore, the volume of the solid is 32/3.
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the display shows musicians' ages in a community orchestra. which of the following describes this data set?
Since the data has only numerical values and deals with only one attribute, that is age, we can say that the given data is numerical as well as univariate.
In statistics, univariate data is the kind of data which consists of observation which only deals with one kind of trait or characteristic. In the given data, age is the only characteristic which the observations represent and hence we can say that the given set of data is univariate.
Numerical data in statistics is the data in which the observations are just in number forms and are not in a descriptive form or in a language. The set of data given to us has only numerical values so we can say that the data is numerical.
--The given question is incomplete, the complete question is
The display shows musicians' ages in a community orchestra.
1 79
2 0446
3 23557
4 2489
5 12
6 5
Key 17 = 17
Which of the following describes this data set?"--
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Work out 5 × 1 7 Give your answer as a fraction.
Answer:
The answer is 85/1. To calculate 5 × 17, first multiply 5 × 10 = 50, then add 5 to the result to get 50 + 5 = 55. Finally, divide the result by 1 to get 55/1 = 85/1.
give me brainiest
Answer:
The fraction is 5/7
Step-by-step explanation:
5 * 1/7
Multiplying a whole number times a fraction
Multiply the whole number times the numerator.
5 * 1 = 5
Divide by the denominator
5/7
The fraction is 5/7
Toastmasters International cites a report by Gallop Poll that 40% of Americans fear public speaking. A student believes that less than 40% of students at her school fear public speaking. She randomly surveys 361 schoolmates and finds that 135 report they fear public speaking. Conduct a hypothesis test to determine if the percent at her school is less than 40%.
Confidence Interval: (0.3241, 0.4240)
There is not enough evidence to conclude that the percent at her school is less than 40%.
How to reach the conclusion of the hypothesis tested?The conclusion of the hypothesis test is reached depending on the confidence interval as follows:
Upper bound below 40%: enough evidence to conclude that the percent at her school is less than 40%.Upper bound above 40%: not enough evidence to conclude that the percent at her school is less than 40%.The upper bound of the interval is given as follows:
0.4240 = 42.40%.
Hence not enough evidence to conclude that the percent at her school is less than 40%.
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problems 13-16, write < or > to complete each statement
Therefore , the solution of the given problem of expression comes out to be √15 -4 < √15 -7 and so on.
Expression : what is it?Multiplying, dividing, adding, and subtracting are necessary math operations. When combined, the following expression would appear: A mathematical operator, some data, and an equation Values, variables, and functions make up a statement of fact's constituent parts, such as additions, deductions, multiplications, divisions, etc. It is possible to contrast and compare words and phrases.
Here,
Given :
to find which is greatest expression among them
=> √15 -4 < √15 -7
=> 2√18 < 2√21
=>-³√30 > -3
=>√8 + 1 < √17 -2
Therefore , the solution of the given problem of expression comes out to be √15 -4 < √15 -7 and so on.
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James has $2000 in one savings account. Let m represent the amount he has in another savings account. Write an expression for the total amount of money in
both accounts.
An algebraic expression for the total amount of money in both accounts is (blank)
Answer:
An algebraic expression for the total amount of money in both accounts is m+2000
Step-by-step explanation:
If there are 2000 dollars in one account and m dollars in the other, the sum of both accounts can be expressed as 2000+m (or m+2000).
drag each label to the correct location on the chart. given: prove: a coordinate system labeled 2, 1, 4, and 3, anticlockwise. complete the flow chart to prove .
1) The Roman military was directed by consuls
2) Senate, a body where plebians chose the leaders.
3) a patrician-only ruling body known as the Assemblies.
What is Roman Republic?The highest ranked magistrate in the Roman Republic was known as a consul (consul in Latin). Two consuls, who were responsible for overseeing the state and, in particular, the army in the field, were chosen annually from among citizens over the age of forty-two for the office, which was annual and collegiate. The consuls, however, held relatively little power and influence during the foundation of the Empire because the emperor assumed the role of supreme leader, serving solely as a symbol of Republican Rome's past.
The Senate, also known as Senatus, de senex, elder, was one of the components of Ancient Rome's government. It was made up of 300 members drawn from the ancient magistrates during the most of the Republic, yet following Sila's dictatorship and during the imperial era, that number rose to 900. It was responsible for approving the laws chosen by the electorate, giving magistrates advice, and managing foreign policy, finances, and religion.
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PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inherited. About 75% of Italians can taste PTC, for example. You want to estimate the proportion of Americans with at least one Italian grandparent who can taste PTC. (a) Starting with the 75% estimate for Italians, how large a sample must you collect in order to estimate the proportion of PTC tasters within ????0.04 with 90% confidence? (b) Estimate the sample size required if you made no assumptions about the value of the proportion who could taste PTC. How much has the required sample size changed?
The sample size for part(A)=318 and part(B) is 423 and the difference of samples is 105.
PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inherited. About 75% of Italians can taste PTC, for example. You want to estimate the proportion of Americans with at least one Italian grandparent who can taste PTC.
Part(A)
it is given in the question that.
margin of error E=0.04
guessed value p=75%=0.75
confidence interval =90%=0.90
now to find the sample size,
[tex]n=\frac{{[z_{a/2}}]^2p(1-p) }{E^{2}}[/tex]
[tex]n=\frac{1.645^2(0.75)(.25)}{0.04^2} \\\\n=318[/tex]
therefore, the sample size is 318.
Part(B)
find the new sample size by the above formula.
p=0.5
so, n'=423.
thus, the new sample size is 423.
for the difference between the two sample sizes.
N=105.
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