Step-by-step explanation:
in a dilation all the angles stay the same. only the lengths of lines (like sides or heights) change - and all with the same scale factor (which makes the original and the dilated result similar objects).
angle EDC = 117°.
therefore angle E'D'C' = 117°.
AB = 1.8 in
A'B' = 4.5 in
the scale factor r is
r = 4.5 / 1.8 = 2.5
every segment of A'B'C'D'E'F' is parallel to its original counterpart in ABCDEF.
like
AB to A'B'
as well as
BC to B'C'
CD to C'D'
DE to D'E'
EF to E'F'
that is the reason why projections work (even at an inclined angle of the projection screen the picture might seem strangely stretched, but the angles are still all the same, parallel lines remain parallel, perpendicular lines remain perpendicular, ... - and the viewer still recognizes the pictures).
If the scale on a map is 1 inch to 20 miles; what is the actual distance between two towns that are 3 inches apart on the map?
The two towns are distance 60 miles apart in the real world if they are 3 inches apart on a map with a scale of 1 inch to 20 miles.
60 miles
1 inch = 20 miles
3 inches = 20 miles x 3 = 60 miles
The scale of a map is a way of expressing the relationship between the distances on the map and the actual distances in the world. If the scale on a map is 1 inch to 20 miles then it means that 1 inch on the map represents 20 miles in the real world. If two towns are 3 inches apart on the map, then this means that the actual distance between them is 3 times the scale, or 3 x 20 miles = 60 miles.
The two towns are 60 miles apart in the real world if they are 3 inches apart on a map with a scale of 1 inch to 20 miles.
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Can someone help me ASAP plzz
According to the ∠-table (Cumulative Probabilities under the Standard Normal Distribution) on the Exam 1 Study Guide: (a) P(z<−0.83)= (keep your response to four decimal places). (b) P(z>1.07)= (keep your response to four decimal places). (c) If P(z
(a) P(z < -0.83) = 0.7967
(b) P(z > 1.07) = 0.1423
(c) If P(z > a) = 0.2033, then a = 0.84
To find the probabilities using the ∠-table (cumulative probabilities under the standard normal distribution), follow these steps:
(a) P(z < -0.83):
Look up the value -0.8 in the leftmost column of the table and the value 0.03 in the top row. The corresponding value in the table is 0.2033. Since the table provides values for positive z-scores, we can use the symmetry property of the standard normal distribution to find the desired probability:
P(z < -0.83) = 1 - P(z < 0.83) = 1 - 0.2033 = 0.7967
(b) P(z > 1.07):
Look up the value 1.0 in the leftmost column of the table and the value 0.07 in the top row. The corresponding value in the table is 0.8577. Since the table provides values for positive z-scores, we need to find the complement of the desired probability:
P(z > 1.07) = 1 - P(z < 1.07) = 1 - 0.8577 = 0.1423
(c) If P(z > a) = 0.2033, find the value of a:
Using the table, we find that the closest value to 0.2033 in the table is 0.20, which corresponds to a z-score of -0.84. Since we are interested in the upper tail, the desired value of a is the negative of the z-score:
a = -(-0.84) = 0.84
Therefore, the answers are:
(a) P(z < -0.83) = 0.7967
(b) P(z > 1.07) = 0.1423
(c) If P(z > a) = 0.2033, then a = 0.84
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After drinking, the body eliminates 37% of the alcohol present in the body per hour.
a) The amount of alcohol in grams in the body on an hourly basis is described by a discrete time dynamical system (DTDS) of the form xn+1=f(xn), where xn is the number of grams of alcohol in the body after n hours. Give the updating function f (as a function of the variable x).
b) Peter had three alcoholic drinks that brought the alcohol content in his body to 41 grams, and then he stopped drinking. Give the initial condition (in grams) for the DTDS in (a).
c) Find the solution of the DTDS in (a) with the initial condition given in (b). (Your answer will be a function of the variable n, which represents time in hours.)
The solution of the DTDS is xn = (0.63)^n * 41 grams, where n represents time in hours.
a) The updating function f(x) for the discrete time dynamical system (DTDS) can be derived from the given information that the body eliminates 37% of the alcohol present in the body per hour.
Since 37% of the alcohol is eliminated, the amount remaining after one hour can be calculated by subtracting 37% of the current amount from the current amount. This can be expressed as:
f(x) = x - 0.37x
Simplifying the equation:
f(x) = 0.63x
b) The initial condition for the DTDS is given as Peter having 41 grams of alcohol in his body after consuming three alcoholic drinks. Therefore, the initial condition is:
x0 = 41 grams
c) To find the solution of the DTDS with the given initial condition, we can use the updating function f(x) and iterate it over time.
For n hours, the solution is given by:
xn = f^n(x0)
Applying the updating function f(x) repeatedly for n times:
xn = f(f(f(...f(x0))))
In this case, since the function f(x) is f(x) = 0.63x, the solution can be written as:
xn = (0.63)^n * x0
Substituting the initial condition x0 = 41 grams, the solution becomes:
xn = (0.63)^n * 41 grams
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Jack is conducting a survey of students in the school. Of the students, 549 prefer vanilla ice cream and 671 prefer chocolate ice cream. What percentage of the total students prefer vanilla ice cream?
Answer:
45% of students prefer vanilla ice cream.
Step-by-step explanation:
549 + 671 = 1220 total students
549 / 1220 = 0.45 or 45%
Answer:
81.82 or 122.22 one of them sorry I'm not very specific :0
Step-by-step explanation:
Which expression shows 7+21 written as a product of two factors?
(A)3(1+7)
(B)3(3+7)
(C)7(3+3)
(D)7(1+3)
Expressing or writing 7+21 as a product of two factors requires the application of Distributive Property
The expression that shows 7+21 written as a product of two factors is
7(1 + 3).
To solve the above question, we apply the Distributive property.This is expressed as:a (b + c) = ab + ac
Where
a is the common factor
We are given the expression:
7 + 21
Splitting this into two factors using the distributive property
7 + 21
The common factor for 7 and 21 is 7
Hence, by factorising we have:
7 + 21 = 7(1 + 3)
Therefore, the expression that shows 7+21 written as a product of two factors is :
7(1 + 3)
The correct option is D
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(x, 7) and (-7, 4); slope: 1
Answer: x= -4
Step-by-step explanation: slope = (y2-y1)/(x2-x1).
(4-7)/(-7-x)
-3/-7-x=1
Multiply both sides by -7-x
-3=-7-x
Add 7 to both sides
4=-x so x = -4
Show all work to identify the asymptotes and state the end behavior of the function f of x is equal to 4x divided by the quantity of x minus 16 end quantity.
The function f(x) = 4x/(x-16) has vertical asymptotes at x = 16.
To see this, we can factor the denominator:
f(x) = 4x/(x-16) = 4x/x - 16
As x approaches 16 from the left or right, the denominator x-16 approaches 0, but the numerator 4x does not. This means that the function approaches infinity or negative infinity as x approaches 16, indicating a vertical asymptote at x = 16.
To find the end behavior of the function, we can look at the behavior of the function as x approaches positive or negative infinity. We can see that f(x) = 4x/(x-16)
As x increases without bound, x-16 increases without bound. This means that the denominator becomes larger and larger, making the function approach 0 as x approaches positive infinity.
As x decreases without bound, x-16 decreases without bound as well, this means that the denominator becomes smaller and smaller, making the function approach 0 as x approaches negative infinity.
Therefore, the function has a vertical asymptote at x = 16 and approaches 0 as x approaches positive and negative infinity.
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Answer:
f(x) =. 4x/(x-16)
4x= 0 =>x=
x-16= 0
=>x=16
Asymptotes(x) =16
Step-by-step explanation:
How do you compare fractions with like numerators?
To compare fractions with like numerators always compare denominators.
We can calculate the LCM of the numerators and then multiply the numerators by the corresponding values to make the numerators of two or more fractions the same or similar. If the numerators are similar or the same, comparisons become simple. Verify the denominators of fractions with comparable or identical numerators. The fraction decreases as the denominator increases. They are referred to as having like or the same numerators when two or more fractions have the same numerators but distinct denominators. While they are referred to as having like or the same denominators when the denominators of two or more fractions are the same.
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a rancher has 800 feet of fencing with which to enclose two adjacent rectangular corrals (see figure). what dimensions should be used so that the enclosed area will be a maximum?
To maximize the enclosed area of two adjacent rectangular corrals with 800 feet of fencing, the dimensions should be 400 feet parallel to the shared side and 133.33 feet perpendicular to the shared side.
I'm glad you reached out for help with this question. To find the dimensions that will result in the maximum enclosed area for two adjacent rectangular corrals using 800 feet of fencing, we can follow these steps:
Let x be the length of the fence parallel to the shared side of the rectangles, and y be the length of the fence perpendicular to the shared side.
The total fencing used will be x + 3y = 800, since there are three y-lengths and one shared x-length.
We can rearrange the equation to solve for x: x = 800 - 3y.
The area of both rectangles combined is A = xy.
We want to maximize this area.
Substitute the equation for x into the area equation: A = (800 - 3y)y = 800y - 3y^2.
To find the maximum area, take the derivative of A with respect to y: dA/dy = 800 - 6y.
Set dA/dy to zero and solve for y: 0 = 800 - 6y => y = 800/6 = 133.33.
Find the value of x using the equation x = 800 - 3y: x = 800 - 3(133.33) = 400.
The dimensions of the corrals should be x = 400 feet and y = 133.33 feet for the maximum enclosed area.
In summary, to maximize the enclosed area of two adjacent rectangular corrals with 800 feet of fencing, the dimensions should be 400 feet parallel to the shared side and 133.33 feet perpendicular to the shared side.
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-(x-7)-x=-8(6+x)+6x Solve for x :)
Answer:
No Solution.
Step-by-step explanation:
-(x-7)-x=-8(6+x)+6x
-x+7-x=-48-8x+6x
-x-x+7=-48-2x
-2x+7=-48-2x
-2x-(-2x)+7=-48
-2x+2x+7=-48
7=-48
no solution
answer these question, please
Morgan read 1 book in 2 months. If she reads at a constant rate, how many books did she read in one month? Give your answer as a whole number or a FRACTION in simplest form
If Morgan read 1 book in 2 months. then Morgan can read 1/2 book in one month.
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
Given that,
Morgan read 1 book in 2 months.
We need to find how many books can morgan read with a constant rate in one month.
To find this let us formulate an equation.
Let us consider x as books read by morgan in one month.
1/2=x/1
Apply Cross multiplication
1=2x
Divide both sides by 2.
1/2=x
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shares of a technology stock and shares of a mutual fund for . Her sister, Erin, bought shares of the technology stock and shares of the same mutual fund for . Find the cost per share of the technology stock, and the cost per share of the mutual fund.
Answer:
qyerloyelopiye te eeffggHELP ME YALL THIS FOR A QUIZ:(1) y-6=15 (2) g-4.8=19 write and solve the equation
For a scavenger hunt, Jim's mom distributed a bag of 440 jelly beans evenly into 20 plastic containers and hid them around the yard. If, after the hunt, Jim has a total of 242 jelly beans, then how many of the plastic containers did he find?
Answer: 11
Step-by-step explanation:
Given
Jim's mom distributed a bag of 440 Jelly beans evenly in to 20 Plastic bags
i.e.each bag has \(\frac{440}{20}=22\) Jelly.
After the hunt, Jim has 242 Jelly. This much Jelly constitutes
\(\Rightarrow \dfrac{242}{22}=11\ \text{bags}\)
Therefore, Jim has 11 bags of Jellys
9.2 Find the
Medn
of the following discrete
a x 20
90
SO
20
6
2
3
Answer:
Poorly formated. Please fix the question so it is more understandable!
Consider the following figure.
(Note that the figure is not drawn to scale.)
I
11°
K
H
50°
84°
J
Answer:
Step-by-step explanation:
What is the measure of angle IJK?
To find the measure of angle IJK, we need to use the fact that the sum of the angles in a triangle is 180 degrees. We can start by finding the measure of angle KJH, which is 180 - 84 - 50 = 46 degrees.
Next, we can use the fact that angles IJH and IJK are vertical angles (opposite angles formed by the intersection of two lines), so they have the same measure. We know that angle IJH has a measure of 84 degrees, so angle IJK also has a measure of 84 degrees.
Therefore, the measure of angle IJK is 84 degrees.
there are 25 people competing in a rubber duck regatta. each person is allowed only one entry. if there are no ties, how many ways are there to have the first, second, and third place winners?
There are 13,800 different ways to have the first, second, and third place winners without any ties.
In a rubber duck regatta with 25 people competing and each person having only one entry, we can determine the number of ways to have the first, second, and third place winners by using permutations.
Step 1: Calculate the number of options for the first place winner.
There are 25 contestants, so there are 25 options for the first place.
Step 2: Calculate the number of options for the second place winner.
Since the first place winner has been determined, there are 24 remaining contestants to choose from for the second place.
Step 3: Calculate the number of options for the third place winner.
After determining the first and second place winners, there are 23 remaining contestants to choose from for the third place.
Step 4: Multiply the number of options for each place to get the total number of possible outcomes.
25 options (first place) × 24 options (second place) × 23 options (third place) = 13,800 possible outcomes.
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show that cos(56) * cos(56*2) * cos(56*2^2) ... cos(56*2^23) = 1/2^24
cos(56) * cos(562) * cos(562^2) ... cos(56*2^23) = 1/2^24
To prove the given equation, we can use the identity of cosine function known as the product-to-sum formula:
cos(A) * cos(B) = (1/2) * [cos(A + B) + cos(A - B)]
Let's rewrite the given expression using the product-to-sum formula:
cos(56) * cos(562) * cos(562^2) ... cos(562^23)
= (1/2) * [cos(56 + 562) + cos(56 - 562)] * [cos(562^2 + 562^3) + cos(562^2 - 562^3)] * ... * [cos(562^23 + 562^24) + cos(562^23 - 56*2^24)]
We can observe that in each pair of terms, one term has a positive angle and the other has a negative angle. When we multiply these pairs together, the cosine of the negative angle will cancel out with the cosine of the positive angle.
Using this property, we can simplify the expression further:
= (1/2) * [cos(56 + 562^1) + cos(56 - 562^1)] * [cos(562^2 + 562^3) + cos(562^2 - 562^3)] * ... * [cos(562^23 + 562^24) + cos(562^23 - 562^24)]
= (1/2) * [cos(562^1) + cos(562^1)] * [cos(562^3) + cos(562^3)] * ... * [cos(562^23) + cos(562^23)]
= (1/2) * [2cos(562^1)] * [2cos(562^3)] * ... * [2cos(562^23)]
= (1/2) * 2^23 * cos(562^23)
= (1/2^24) * cos(56*2^23)
Finally, since cos(56*2^23) is a constant value, we can say:
cos(56) * cos(562) * cos(562^2) ... cos(56*2^23) = 1/2^24
By applying the product-to-sum formula and simplifying the expression, we have shown that the product of the cosine values of the given sequence equals 1/2^24.
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Consider a population with a population standard deviation of 26.8. In order to compute an interval estimate for the population meant, a sample of 64 observations is drawn. (You may find it useful to reference the table.)
a. is the condition that is normally distributed satisfied?
Yes
O NO
b. Compute the margin of error at the 95% confidence level. (Round final answer to 2 decimal places)
Margin of error
c. Compute the margin of error at the 95% confidence level based on a larger sample of 225 observations (Round final answer to 2 decimal places.)
The answer is briefly discussed
a. The condition that is normally distributed satisfied when a population standard deviation is known is YES.
b. The margin of error at the 95% confidence level can be computed using the formula:
Margin of Error (E) = Z * (σ/√n)
where Z is the z-score of the level of confidence, σ is the population standard deviation, and n is the sample size.
The z-score for a 95% confidence level can be found using the z-table or calculator and is approximately 1.96. Hence, Margin of Error (E) = 1.96 * (26.8/√64) = 9.94 ≈ 9.95.
The margin of error at the 95% confidence level is approximately 9.95 when the sample size is 64 observations.
c. The margin of error at the 95% confidence level based on a larger sample of 225 observations can be computed using the same formula:
Margin of Error (E) = Z * (σ/√n)The z-score for a 95% confidence level remains the same at approximately 1.96. Hence, Margin of Error (E) = 1.96 * (26.8/√225) = 3.16 ≈ 3.17.
The margin of error at the 95% confidence level is approximately 3.17 when the sample size is 225 observations.
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Monty has a total of $290 in ten dollar and five dollar bills. This can be represented by the function 10x + 5y = 290. Interpret the x- and y-intercepts.
Answer:
The x-intercept indicates that he has 29 ten dollar bills
and no five dollar bills. The y-intercept indicates that he has 58 five
dollar bills and no ten dollar bills.
Step-by-step explanation:
which symbol represents a test statistic used to test a hypothesis about a population mean
The test statistic symbol for testing a hypothesis about a population mean is "t."
The symbol that represents a test statistic used to test a hypothesis about a population mean is typically denoted as "t" or "t-score."
In more detail, when conducting hypothesis tests for a population mean, the standard procedure involves calculating the test statistic, which measures the difference between the sample mean and the hypothesized population mean in terms of standard error.
The test statistic follows a t-distribution when certain assumptions are met, such as the sample being drawn from a normally distributed population or having a sufficiently large sample size. The t-test allows us to compare the observed sample mean to the hypothesized population mean and determine if there is sufficient evidence to support or reject the null hypothesis.
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What is the domain and range of graph!!! 10 points!!!
Answer:
THIRD OPTION - Domain: (0, infinity)
Range: (-infinity, + infinity)
Step-by-step explanation:
The graph is an asymptote, therefore the domain must start at 0 and end at infinity. The range is all real numbers because eventually it will reach all y values.
What is a prime factor of 9?
3 x 3 is the prime factorization of 9.
What is a Prime factor?
A natural number other than 1 in which the only factors are 1 and on its own is referred to as having a prime factor.
In fact, the first five prime numbers are 2, 3, 5, 7, 11, and so forth.
How is the prime factor determined?
To use the division method to determine a number's prime factors, follow the following steps:
Step 1 : Divide the specified integer by the smallest prime number as the
Step 2 : Divide the quotient yet again by the smallest prime number in
Step 3: Keep on in the same fashion until the quotient reaches 1.
Step 4: Multiply all the prime factors at the conclusion.
The average of the nine elements is what?
Average is the result of dividing the total by a certain number.
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Point M is located at ( 5 , − 1 ) (5,−1) on the coordinate plane. Point M is reflected over the y-axis to create point ′ M ′ . What ordered pair describes the location of ? M ′ ?
The ordered Pair that describes the location of M' is (-5,-1).
Given that a point M is located at (5,-1) on the coordinate plane and it is reflected over the y-axis to create point M'.
We know that when a point is reflected over the y-axis, the x-coordinate changes its sign. Hence the x-coordinate of M will become negative.
The formula for reflecting a point over y-axis is (x,y) → (-x,y)
Therefore, the coordinates of the new point M' would be (-5,-1).
Hence, the ordered pair that describes the location of M' is (-5,-1).
So, the correct option is D) (-5, -1).
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Question 1 (Essay Worth 30 points) 2. (10.07 HC) Consider the Maclaurin series g(x)=sin x = x - 3! + x х" х9 7! 9! + x2n+1 ... + Σ (-1). 2n+1 5! n=0 Part A: Find the coefficient of the 4th degree term in the Taylor polynomial for f(x) = sin(4x) centered at x = (10 points) Part B: Use a 4th degree Taylor polynomial for sin(x) centered at x = to estimate g(0.8) out to five decimal places. Explain why your answer is so close to 1. (10 points) x2n+1 263 Part C: The series { (-1)" has a partial sum S. when x = 1. What is an interval, |S - S5l = R5| for which the actual sum exists? 2n +1 315 Provide an exact answer and justify your conclusion. (10 points) n=0
Part A: The coefficient of the 4th degree term in the Taylor polynomial for f(x) = sin(4x) centered at x = 0 is -1/3! = -1/6.
Part B: Using a 4th degree Taylor polynomial for sin(x) centered at x = 0, we can write g(x) = sin(0.8) ≈ P4(0.8), where P4(0.8) is the 4th degree Taylor polynomial for sin(x) evaluated at x = 0.8.
Evaluating P4(0.8) using the formula for the Taylor series coefficients of sin(x), we get P4(0.8) = 0.8 - 0.008 + 0.00004 - 0.0000014 ≈ 0.78333. This estimate is very close to 1 because sin(0.8) is close to 1, and the Taylor series for sin(x) converges very rapidly for values of x close to 0.
Part C: The series { (-1)n / (2n + 1) } has a partial sum S when x = 1. To find an interval |S - S5| = R5| for which the actual sum exists, we can use the alternating series test. The alternating series test states that if the terms of a series alternate in sign, decrease in absolute value, and approach zero, then the series converges.
Since the terms of the series { (-1)n / (2n + 1) } alternate in sign and decrease in absolute value, we know that the series converges. To find an interval |S - S5| = R5|, we can use the remainder formula for alternating series, which states that |Rn| ≤ a_n+1, where a_n+1 is the first neglected term in the series.
Since the terms of the series decrease in absolute value, we know that a_n+1 ≤ |a_n|. Therefore, we have |R5| ≤ |a6| = 1/7!, which means that the actual sum of the series exists in the interval S - 1/7! ≤ S5 ≤ S + 1/7!. Therefore, an interval for which the actual sum exists is [S - 1/7!, S + 1/7!].
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A restaurant sells burritos for $8.00 each. The cost of the meat is $1.50 and the cost of the other ingredients is $1.00 for each burrito.
Money made from selling burritos is positive. The cost of making burritos is negative. Profit is the money left after paying the costs.
How much profit would the restaurant make by selling 100 burritos? Answer these questions to find out.
1. How much money would the restaurant take in by selling 100 burritos?
2. What is the cost of making one burrito? (Remember that costs are negative.) Explain how you found your answer
3. What is the cost of making 100 burritos?
4. What is the profit the restaurant makes from selling 100 burritos? Does the restaurant make money or lose money? Explain.
Jan and jamie are starting a nonprofit store. they plan to sell handmade scarves and jewelry. which basic economic question do they still need to answer?\
Answer:
How much will the handmade scarves and jewellery cost?
How much are they planning to spend on operating costs for their business every year?
Step-by-step explanation:
987654321.123456-78906543.21+23456.88+376483.7332=
Answer:
909147718.527
Step-by-step explanation:
It's called a calculator