Answer:
She started 4 meters ahead and moves forward 1.5 meters every second.
The rate is 1 and 1/2 meters per second and she did get a head start of 4 meters
What the meaning of "f is order-preserving if x < y implies f(x) < f(y)"?
An order-preserving function is one where x < y implies f(x) < f(y). An isomorphism is a one-to-one order-preserving function between two partially ordered sets, while an automorphism is an isomorphism of a set to itself.
In the given excerpt, it explains the concepts of order-preserving functions, isomorphisms, and automorphisms in the context of partially ordered sets.
Order-Preserving Function:
A function f: P -> Q, where P and Q are partially ordered sets, is said to be order-preserving if for any elements x and y in P, if x < y, then f(x) < f(y). In other words, the function preserves the order relation between elements in P when mapped to elements in Q.
Increasing Function:
If P and Q are linearly ordered sets, then an order-preserving function is also referred to as an increasing function. It means that for any elements x and y in P, if x < y, then f(x) < f(y).
Isomorphism:
A one-to-one function f: P -> Q is called an isomorphism of P and Q if it satisfies two conditions:
a. f is order-preserving: For any elements x and y in P, if x < y, then f(x) < f(y).
b. f is onto (surjective): Every element in Q has a pre-image in P.
When an isomorphism exists between (P, <) and (Q, <), it means that the two partially ordered sets have a structure that is preserved under the isomorphism. In other words, they have the same ordering relationships.
Automorphism:
An automorphism of a partially ordered set (P, <) is an isomorphism from P to itself. It means that the function f: P -> P is both order-preserving and bijective (one-to-one and onto). Essentially, an automorphism preserves the structure and order relationships within the same partially ordered set.
These concepts are fundamental in understanding the relationships and mappings between partially ordered sets, particularly in terms of preserving order, finding correspondences, and exploring the symmetry within a set.
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9. The Super Vision cable TV/Internet/phone provider advertises a flat $100 monthly fee for all
three services for a new customer. The rate is guaranteed for 5 years. Cable Zone normally
charges $46 for monthly home phone service, $36 for monthly Internet service, and $56 for
monthly cable television.
a. How much could a customer save during the first year by switching from Cable Zone to
Super Vision?
b. Super Vision raises the rates 23% after a new customer's first year, how much will a customer
who switched from Super Vision save in the second year?
c. If Super Vision raises the rates 18% for the third year compared to the second year, which
company is cheaper for the third year?
a. $456 would be the amount a customer could save during the first year by switching from Cable Zone to Super Vision.
b. Super Vision raises the rates 23% after a new customer's first year, a customer who switched from Super Vision save $180 in the second year.
c. Super Vision raises the rates 18% for the third year compared to the second year, for the third year, Cable Zone would be cheaper.
a. To calculate how much a customer could save during the first year by switching from Cable Zone to Super Vision, we need to compare the costs of the two providers.
Cable Zone charges $46 for monthly home phone service, $36 for monthly Internet service, and $56 for monthly cable television. Therefore, the total cost per month with Cable Zone is:
$46 (home phone) + $36 (Internet) + $56 (cable television) = $138
Super Vision, on the other hand, offers all three services for a flat $100 monthly fee. So, the customer would save:
$138 (Cable Zone cost) - $100 (Super Vision cost) = $38 per month
Therefore, during the first year, the customer could save:
$38 (monthly savings) * 12 (number of months) = $456
b. After the first year, Super Vision raises the rates by 23%. The new monthly fee would be:
$100 (original fee) + 23% (rate increase) * $100 (original fee) = $123
To calculate the savings in the second year, we need to compare the new Super Vision fee to the cost with Cable Zone:
$138 (Cable Zone cost) - $123 (Super Vision cost) = $15 per month
Therefore, in the second year, the customer would save:
$15 (monthly savings) * 12 (number of months) = $180
c. If Super Vision raises the rates by 18% for the third year compared to the second year, we need to calculate the new monthly fee. The new Super Vision fee would be:
$123 (second-year fee) + 18% (rate increase) * $123 (second-year fee) = $145.14
To determine which company is cheaper for the third year, we compare the new Super Vision fee to the cost with Cable Zone:
$138 (Cable Zone cost) - $145.14 (Super Vision cost) = -$7.14
In this case, the Super Vision cost is higher than the Cable Zone cost by $7.14 per month. Therefore, for the third year, Cable Zone would be cheaper.
Overall, during the three-year period, the customer would save a total of $456 (first year) + $180 (second year) = $636 by switching to Super Vision.
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b. Express log2 24 in terms of prime factors and leave answer in the most simplified form using properties of logarithms. (2 Marks)
log₂ 24 can be expressed as 3 + log₂ 3 in terms of prime factors, using the properties of logarithms.
To express log₂ 24 in terms of prime factors, we can use the properties of logarithms and the fact that any positive integer can be expressed as a product of prime factors.
First, let's find the prime factorization of 24.
24 can be divided by 2, so we have 24 = 2 × 12.
12 can be divided by 2, so we have 12 = 2 × 6.
6 can be divided by 2, so we have 6 = 2 × 3.
Therefore, the prime factorization of 24 is 2 × 2 × 2 × 3, or 2³ × 3.
Now, using the properties of logarithms, we can express log₂ 24 as the sum of logarithms of its prime factors.
log₂ 24 = log₂ (2³ × 3)
According to the properties of logarithms, we can separate the factors inside the logarithm as individual terms:
log₂ (2³ × 3) = log₂ 2³ + log₂ 3
Since log₂ 2³ is equal to 3, we can simplify the expression further:
log₂ (2³ × 3) = 3 + log₂ 3
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PLEASE HELP ASAP!!! I WILL GIVE YOU BRAINLIST PLEASE Due in like 10 minutes
Which algebraic rule describes the translation of quadrilateral HIJK to quadrilateral H'I'J'K'?
The algebraic rule describes the translation of quadrilateral HIJK to quadrilateral H'I'J'K' is (x, y) => (x+1, y-8)
How to determine the algebraic rule that describes the translation of quadrilateral?Translation is defined as the movement on a straight line
Given: quadrilateral HIJK to that translated H'I'J'K'
To determine the algebraic rule, we need to get the coordinates of HIJK and H'I'J'K' and then subtract them to get the translation:
H => (x, y) = (4, 6) | H' => (x, y) = (5, -2)
I => (x, y) = (6, 4) | I' => (x, y) = (7, -4)
J => (x, y) = (4, 2) | J' => (x, y) = (5, -6)
K => (x, y) = (4, 2) | K' => (x, y) = (3, -6)
Using points H and H' (you can use any point):
The difference in x is 5-4 = +1 => x+1
The difference in y is -2-6 = -8 => y-8
Therefore, the algebraic rule describes the translation is (x, y) => (x+1, y-8). Option C is the answer
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Answer:
(x, y) => (x+1, y-8)
Step-by-step explanation:
the sum of five and five times a number is -50 what is the number?
Answer: -10
Step-by-step explanation:5x-10= -50
n = - 11
Step-by-step explanation:Hi there !
5 + 5n = - 50
5n = - 50 - 5
5n = - 55
n = - 55/5
n = - 11
Good luck !
Select the correct answer. Which chart best represents the following information about student results from a class assignment? Frequency 10 Score Frequency Chart 1 23 2 Frequency 10 24 8 25 4 Chart 2 26 3 27 5 28 4 29 5
The chart that best represents the student results from a class assignment is B. Histogram or bar graph.
What is a histogram or bar graph?Both histograms and bar charts are graphic vertical and horizontal bars that visually display frequencies with columns plotted on a graph.
The frequencies are depicted on the Y-axis (vertical axis).
The X-axis (horizontal axis) represents the measured variable.
Question Completion with Answer Options:A. Frequency table
B. Histogram or bar graph
C. Pareto chart
D. Pictogram
E. Pie chart
Thus, the best chart to represent the student results from a class assignment is B. Histogram or bar graph.
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How many two or three-digit numbers can you make using the digits 1, 7, 8, 5, and 2?
Answer:
the are so many numbers but here's one of them
Step-by-step explanation:
Since the number is less than 700, it cannot begin with a 7 or an 8.
So the hundreds digit can only be a 2 or a 5.
Now the tens digit can be any digit not occupying the hudreds digit. So there would be 3 possibilities, and there remain two possibilities for the units digit.
Hence, the number of such numbers is 2x3x2 which is 12.
The number of two-digit or three-digit numbers that can be made using the digits 1, 7, 8, 5, and 2 will be 150.
What is a sample?A sample is a group of clearly specified components. The number of items in a finite set is denoted by a curly bracket.
The number of two-digit numbers that can be made using the digits 1, 7, 8, 5, and 2 is calculated as,
⇒ 5 x 5
⇒ 25
The number of three-digit numbers that can be made using the digits 1, 7, 8, 5, and 2 is calculated as,
⇒ 5 x 5 x 3
⇒ 125
The number of two-digit or three-digit numbers that can be made using the digits 1, 7, 8, 5, and 2 is calculated as,
⇒ 125 + 25
⇒ 150
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Which data set could be represented by the box plot shown below? A horizontal boxplot is plotted along a horizontal axis marked from 10 to 26, in increments of 1. A left whisker extends from 12 to 15. The box extends from 15 to 21 and is divided into 2 parts by a vertical line segment at 19. The right whisker extends from 21 to 24. All values estimated. Choose 1 answer: Choose 1 answer: (Choice A) 13 1313, 15 1515, 15 1515, 17 1717, 19 1919, 19 1919, 20 2020, 22 2222, 24 2424 A 13 1313, 15 1515, 15 1515, 17 1717, 19 1919, 19 1919, 20 2020, 22 2222, 24 2424 (Choice B) 12 1212, 15 1515, 15 1515, 17 1717, 19 1919, 19 1919, 20 2020, 22 2222, 24 2424 B 12 1212, 15 1515, 15 1515, 17 1717, 19 1919, 19 1919, 20 2020, 22 2222, 24 2424 (Choice C) 12 1212, 15 1515, 15 1515, 17 1717, 20 2020, 20 2020, 20 2020, 22 2222, 24 2424 C 12 1212, 15 1515, 15 1515, 17 1717, 20 2020, 20 2020, 20 2020, 22 2222, 24 2424 (Choice D) 12 1212, 15 1515, 17 1717, 17 1717, 19 1919, 19 1919, 22 2222, 22 2222, 24 2424 D 12 1212, 15 1515, 17 1717, 17 1717, 19 1919, 19 1919, 22 2222, 22 2222, 24 2424
The dataset represented by the given box plot is 12, 15, 15, 17, 19, 19, 20, 22, 24 option B.
What is box plot?A box plot, sometimes called a box whisker plot, shows the distribution of a dataset graphically. The minimum value, the first quartile (25th percentile), the median (50th percentile), the third quartile (75th percentile), and the maximum value are the five main values used to standardise this method of displaying the distribution of data.
Two whiskers that extend from a rectangular box make up a box plot. The range of values between the first and third quartiles is represented by the box, which is known as the interquartile range (IQR).
From the given box plot we observe that the minimum value is 12 and the maximum value is 24.
Here, the median is 19.
From the information the two data set that have the corresponding values are:
12, 15, 15, 17, 19, 19, 20, 22, 24
12, 15, 17, 17, 19, 19, 22, 22, 24
The lower quartile is 15.
The upper quartile is 21.
Calculating the lower quartile for the data sets:
12, 15, 15, 17, 19, 19, 20, 22, 24
Lower quartile = 15
Hence, the dataset represented by the given box plot is 12, 15, 15, 17, 19, 19, 20, 22, 24 option B.
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2/5 divided by 3 in its simplest form in a fraction is?
Answer:
2/15
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
The equivalent value of the fraction is A = 2/15
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the first fraction be p
Let the second fraction be q
Now , A = p/q
when the value of p = 2/5
And , when the value of q = 3
On simplifying the equation , we get
A = ( 2/5 ) / 3
So , the left hand side of the equation is equated to the right hand side by the value of ( 2/5 ) / 3
A = ( 2/5 ) / 3
A = ( 2/5 ) ( 1/3 )
On simplifying , we get
A = 2/15
A = 0.133333
Therefore , the value of A = 2/15 = 0.133333
Hence , the fraction is A = 2/15
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1, 8, 5, 4, 1, 8, 5, 4 mean media mode
Answer:
see below
Step-by-step explanation:
mean: 4.5
median: 1,1,4,4,5,5,8,8
mode: 4.5
Devi invested a principal of $2750 in her bank account with an interest rate of 1.5%. How much simple interest did she earn in 3 years?
Plz plz plz, HELP!!!! I will give u brainlylist
If f(x) = 5x, what is ƒ˜¹ (x)?
\(y = 5x \\ switch \: y \: and \: x \\ x = 5y \\ solve \: for \:y \\ y = \frac{x}{5} \)
In the expression 1 + 3 – 6 x (45 ÷ 9), which should be done first?
help plz will give brainlyest
Answer:
A. Cendric is correct because he used the inverse of subtraction and added 4.5
Step-by-step explanation:
To solve for x, all we needed to do was to make x stand alone. To do this, we have to apply addition property of equality. This means we would add 4.5 to both sides for the equation to balance. Thus, we would have z standing alone which equals 3.
Therefore, Cendric was correct because he used the inverse of subtraction of -4.5, which is 4.5 that was later added to both sides of the equation.
A trapezoid has been rotated 180°. Is it true
that the new trapezoid is the same size as the
original trapezoid?
Answer:
True.
Step-by-step explanation:
Rotations do not change the size of a shape. Dilations cause changes in the size of a shape.
The hypotenuse of a right triangle is three times the length of one of its legs. The length of the other leg is four feet. Find the lengths of the three sides of the triangle. For non-integer answer(s), round your answer(s) to the nearest tenth.
___feet, ___feet, ___feet
then then then
okokokokokokok
What is the value of the variable z and the measure of Angle B?
f(x) = 6^2+12x -7
please answer and explainnnn!
Answer:
A) \(x=-1\pm\sqrt{\frac{13}{6}}\)
Step-by-step explanation:
\(\displaystyle x=\frac{-12\pm\sqrt{12^2-4(6)(-7)}}{2(6)}\\\\x=\frac{-12\pm\sqrt{144+168}}{12}\\\\x=\frac{-12\pm\sqrt{312}}{12}\\\\x=\frac{-12\pm2\sqrt{78}}{12}\\\\x=-1\pm\frac{\sqrt{78}}{6}\\\\x=-1\pm\sqrt{\frac{78}{36}}\\\\x=-1\pm\sqrt{\frac{13}{6}}\)
What is the measure of n?
m
n
8
4
ከ =
4V[?]
Give your answer in simplest form.
Enter
The value of n is 32 if the total; base length is 12(8+4) and n is the length of the perpendicular.
What is a right-angle triangle?It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.
We can use the altitude rule:
8/n = n/4
n² = 32
n = √32
Thus, the value of n is 32 if the total; base length is 12(8+4) and n is the length of the perpendicular.
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GEOMETRY TWO SIDES GIVEN WHAT IS POSSIBLE FOR THIRD 20 AND 15 ARE GIVEN PLEASE HELP
Using the triangle inequality theorem, the possible values for the third side of the triangle are: 5 < x < 35.
How to Apply the Triangle Inequality Theorem?The Triangle Inequality Theorem asserts that for any triangle, the sum of the lengths of any two sides must be greater than the length of the third side.
Stated differently, the difference between the lengths of any two sides must be less than the length of the third side.
Thus, if you have the lengths of two sides of a triangle, as 20 and 15, we have:
20 - 15 < x < 20 + 15
5 < x < 35
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The dot plot shows the number of televisions owned by the families in a neighborhood
The most appropriate measure of center for the given dot plot is the median, which is 3. The interquartile range is 3, indicating 50% of the data lies between 1 and 4.
The given dot plot shows the number of televisions owned by the families in a neighborhood. There are different measures of central tendency and variation that can be used to describe the data set. The most appropriate measure of center for this data set is the median, which is the middle value when the data is arranged in ascending or descending order.
This is because the data is not normally distributed and there are outliers in the data set.
The median value is 3, which is the middle value when the data is arranged in ascending order. The median is a better measure of center for this data set because it is not affected by outliers, unlike the mean, which can be skewed by extreme values.
The appropriate measure of variation for this data set is the interquartile range (IQR). This is because the data set is not normally distributed and there are outliers present. The IQR is the range between the 25th and 75th percentile of the data set. The IQR is 3, which indicates that 50% of the data lies between 1 and 4.
In summary, the median value of televisions owned by families in the neighborhood is 3, which is a better measure of center because it is not affected by outliers. The interquartile range is 3, which indicates that 50% of the data lies between 1 and 4.
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Subtract.
Your answer should be a polynomial in standard form.
(6a³ + 7a²) - (5a³ + 9a² + a) =
Step-by-step explanation:
=6a^3+7a^2-5a^3-9a^2-a
=a^3-2a^2-a this is the final answer.
If a truck weighs 1200 kg and is traveling at 30 m/s, how much kinetic energy does it have?
Need help will give brainliest and a good rating!
Answer:
1) x = -6, 8
2) x = -1 + i√2
Step-by-step explanation:
1)
\( {x}^{2} - 2x - 48 = 0\)
\((x - 8)(x + 6) = 0\)
x = -6, 8
2)
\(3 {x}^{2} + 2x + 1 = 0\)
x = (-2 + √(2^2 - 4(3)(1))) / (2 × 1)
x = (-2 + √(4-12)) / 2
x = (-2 + √-8) / 2
x = (-2 + 2i√2) / 2
x = -1 + i√2
The rule for a pattern is subtract 4. The first number of the pattern is 41. Which choice is true about this pattern?
A.The numbers in the pattern are even.
B.The numbers in the pattern are odd.
C. The numbers alternate between even and odd.
Answer:A
Step-by-step explanation:
the correct choice is: B. The numbers in the pattern are odd.
To determine if the numbers in the pattern are even, odd, or alternate between even and odd, let's examine the first few numbers in the pattern:
First number: 41
Second number: 41 - 4 = 37
Third number: 37 - 4 = 33
Fourth number: 33 - 4 = 29
As we can see, the numbers in the pattern are decreasing by 4 in each step. The first number (41) is odd, and subsequently, each number is decreasing by an even value (4). Therefore, all the numbers in the pattern will be odd.
So, the correct choice is:
B. The numbers in the pattern are odd.
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A scientist has two solutions, which she has labeled solution a and solution
b. each contains salt. she knows that solution a is 65% salt and solution b is 80% salt. she wants to obtain 150 ounces of a mixture that is 70% salt. how many ounces of each solution should she use?
How do you know a fraction will have a terminating decimal?
Select all that apply.
Group of answer choices
When the denominator is a factor of 10, 100, 1,000, etc.
If the fraction can be simplified or rewritten with a denominator of 10, 100, or 1,000
If the fraction is greater than 1.
If the fraction is less than 1.
Answer:
A fraction will have a terminating decimal " When the denominator is a factor of 10, 100, 1,000, etc." ⇒ A
A fraction will have a terminating decimal "If the fraction can be simplified or rewritten with a denominator of 10, 100, or 1,000" ⇒ B
Step-by-step explanation:
Let us explain the meaning of terminating decimal
A terminating decimal is defined as a decimal number that contains a finite number of digits after the decimal point.
All terminating decimals are rational numbers that can be written as fractions with denominators containing no prime number factors other than two or five, so we can change the denominators to 10, 100, 1000, 10000, ...........Examples
3/5 ⇒ multiply up and down by 2, 3/5 = 6/10 (5 is a factor of 10)39/25 ⇒ Multiply up and down by 25, 39/25 = 156/100 (25 is a factor of 100) 7/8 ⇒ Multiply up and down by 125, 7/8 = 875/1000 (8 is a factor of 1000) 13/400 ⇒ Multiply up and down by 25, 13/400 = 325/10000 (400 is a factor of 10000)All these numbers are terminating decimals
That means the fraction is a terminating decimal if its denominator is a factor of 10, 100, 1000, ..........
A fraction will have a terminating decimal " When the denominator is a factor of 10, 100, 1,000, etc." ⇒ A
A fraction will have a terminating decimal "If the fraction can be simplified or rewritten with a denominator of 10, 100, or 1,000" ⇒ B
A package of 8-count AA batteries costs $6.16. A package of 20-count AA batteries costs $15.60. Which statement about the unit prices
is true?
The 8-count pack of AA batteries has a lower unit price of $0.77 per battery.
The 20-count pack of AA batteries has a lower unit price of $0.77 per battery.
The 20-count pack of AA batteries has a lower unit price of $0.78 per battery.
Answer:
it would be within the range of $0.77 <x< $0.78
What is 100 times 10
Answer:
Your answer will be 1,000
Step-by-step explanation:
One thousand
Hope this helps : )
Answer:
1000
Step-by-step explanation:
Add 100 10 times and you will get 1000