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Related Questions
T/F two lines either intersect or are parallel.
Answers
The given statement is True.
What are parallel lines?
Parallel lines can be defined as two (2) lines that are always the same (equal) distance apart and never meet.
True. Two lines either intersect or are parallel.
This means that there are only two possibilities for the relationship between two lines: they either meet at a single point, in which case they are said to intersect, or they never meet, in which case they are said to be parallel.
If two lines are intersecting, then they are not parallel, and if two lines are parallel, then they do not intersect.
Hence, The given statement is True.
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A florist has 56 and 70 carnations to make a table centerpiece he wants to put an equal number of roses and carnations into each centerpiece
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The maximum number of Centerpieces that could be made by the florist with the given number of roses and carnations is 14.
To Determine the maximum number of centerpieces, we have to find the Least Common Multiple of the given number of Roses and Carnations.
The given values are:
Roses = 56
Carnations = 70
Taking all the factors of both numbers,
we can write them as,
Roses = 1 * 2 * 4 * 7
Carnations = 1 * 2 * 5 * 7
Then, the common factors would be,
= 1 * 2 * 7
= 14
From this we can conclude that the maximum number of centerpieces of roses and carnations that can be made by the florist is 14
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Rectangle jklm is congruent to a 4 inch by 7 inch rectangle. How many different values are possible for the length of segment j m?.
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A congruent rectangle is a rectangle that has the same size and shape as another rectangle. In other words, two rectangles are congruent if they have the same length and width.
Since the rectangle is 4 inches by 7 inches, one of the dimensions represents the length and the other represents the width. The length and the width can be interchanged to form a different rectangle with the same area.
Since the rectangle is congruent to the 4-inch by 7-inch rectangle, the length and width of the rectangle are either 4 inches or 7 inches. Therefore, the length of segment JM can be either 4 inches or 7 inches.
So, there are two possible values for the length of segment JM: 4 inches and 7 inches.
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which of the following are good principles for building an interface? select all that apply. a. giving the user control. b. using touchscreens. c. requiring multiple instances of identity verification. d. being consistent (in terminology, layout, and so on)
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The good principles for building an interface are:
(a) Giving the user control
(b) Being consistent (in terminology, layout, and so on).
The User Interface is the full form of the term UI.
It is based on the principle of the way that the user takes control of the devices or computer.
The users mark a website or app by the performance of it as a whole, which is not only the functions of that particular website or app but also the design.
There are many good principles for an interface to be great.
It is important for the interface to be in control for the user. Then, only the user will interact with it more.
Using touchscreens is not that important, since buttons can also be used.
If there came multiple instances to verify the identity, the users will be more prone to get fed up. So, it is not good.
Consistency is very important in interface design. This means that the users should feel easy to go through the interface.
Hence, the good principles are giving the user control and consistency.
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A runner is training for a half marathon. On Wednesday, she ran 6 miles in 50 minutes. On Thursday, she ran 4 miles in 32 minutes. Assume she ran at a constant rate each day. On which day did she run faster? By how much faster did she run?
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The day that she run faster is given as follows:
Thursday.
She ran 0.3 miles per hour faster on Thursday than on Wednesday.
What is the relation between velocity, distance and time?Velocity is distance divided by time, hence the following equation is built to model the relationship between these variables:
v = d/t.
Considering the time in hours, each hour = 60 minutes, the velocity on Wednesday is given as follows:
v = 6/(50/60)
v = 7.2 miles per hour.
The velocity on Thursday is given as follows:
v = 4/(32/60)
v = 7.5 miles per hour. -> faster, as 7.5 > 7.2.
The difference is of:
7.5 - 7.2 = 0.3 miles per hour.
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the proportion of eligible voters in the next election who will vote for the incumbent is assumed to be 53.3%. what is the probability that in a random sample of 400 voters, less than 48.9% say they will vote for the incumbent?
Answers
The probability is P(z < -1.76) = 0.0040
Voter turnout is a helpful statistic that indicates how engaged voters were in a particular election. Generally, this is understood as the percentage of voters who vote in a given election and is calculated by dividing the number of votes by the number of voters.
People's participation in the election is measured by voter turnout figures. Turnout indicates the per cent of eligible voters who actually cast their vote. 1. In India, the poor, illiterate and underprivileged people vote in larger proportion as compared to the rich and privileged sections.
In statistics, a population proportion refers to the fraction of individuals in a population with a certain characteristic.
The sample proportion is a random variable: it varies from sample to sample in a way that cannot be predicted with certainty. Viewed as a random variable it will be written ˆP. It has a mean μˆP and a standard deviation σˆP. Here are formulas for their values.
z = (phat - p)/sqrt(p*(1-p)/n
where phat = sample proportion
p = population proportion
n = sample size
here phat = 0.489, p = 0.533 and n=400
z = (0.489 - 0.533)/sqrt(0.533*0.467/400)
z = -1.76
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The probability is P(z < -1.76) = 0.0040 in a random sample of 400 voters, less than 48.9% say they will vote for the incumbent.
A useful metric that reveals how involved people were in a specific election is voter turnout. Calculated by dividing the total number of votes by the total number of voters, this is typically viewed as the percentage of voters who participate in a particular election.
Voter turnout numbers are used to gauge voter involvement in elections. The turnout rate represents the proportion of eligible voters who actually cast a ballot. 1. Compared to the wealthy and privileged parts, more impoverished, ignorant, and underprivileged individuals vote in India.
The percentage of people who share a particular attribute within a population is referred to as a population proportion in statistics.
The formula is:
[tex]Z=\frac{(P_{hat}-P) }{\sqrt{\frac{P*(1-P)}{n} } }[/tex]
Where
[tex]P_{hat}[/tex] = sample proportion
P = population proportion
n = sample size
Here [tex]P_{hat}[/tex] = 0.489, p = 0.533 and n=400
[tex]Z=\frac{(0.489-0.533)}{\sqrt{\frac{(0.533*0.467)}{400} } }[/tex]
[tex]Z=-1.76[/tex]
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evaluate the integral. (remember to use absolute values where appropriate. use c for the constant of integration.) 41 x3 − 27 dx
Answers
The integral of 41x^3 - 27 dx is 41/4 x^4 - 27x + c.
Calculating an integral is called integration. To determine the functions that will characterize the area, displacement, and volume that result from a combination of small data that cannot be measured separately, integrals are calculated.
The concept of limit is employed broadly in calculus whenever algebra and geometry are applied. Limits assist us in analyzing how points on a graph behave, such as how they approach one another until their distance approaches zero.
The indefinite integral of 41x^3 - 27 dx is given by:
∫(41x^3 - 27)dx = 41/4 x^4 - 27x + c
where c is the constant of integration.
Correct Question :
evaluate the integral. (remember to use absolute values where appropriate. use c for the constant of integration.) 41x^3 - 27 dx
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Determine b so that f(x)is continuous if
f(x)= {4x+9 x≤2
4x2+bx+1 x≤2
b=
Answers
The value of b that makes the function f(x) continuous at x = 2 is b = 4. The complete function f(x) = {4x + 9, x ≤ 2; 4x^2 + 4x + 1, x > 2} is now continuous at x = 2.
How to get the b using continuous function?For a function to be continuous, its value must be the same at the point where two different pieces of the function meet, and the limit of the function must exist at that point.
In this case, we have two different pieces of the function: f(x) = 4x + 9 for x ≤ 2, and f(x) = 4x^2 + bx + 1 for x > 2. To make the function continuous at x = 2, the values of f(x) for x = 2 must be the same for both pieces.
According to question:Let's plug in x = 2 into both pieces:
f(2) = 4 * 2 + 9 = 17 for x ≤ 2
f(2) = 4 * 2^2 + b * 2 + 1 = 8 + 2b + 1 = 9 + 2b for x > 2
Equating these two values, we get:
17 = 9 + 2b
Solving for b:
b = (17 - 9) / 2 = 4
So, the value of b that makes the function f(x) continuous at x = 2 is b = 4. The complete function f(x) = {4x + 9, x ≤ 2; 4x^2 + 4x + 1, x > 2} is now continuous at x = 2.
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There were 24 students in all at the Arts and Academic Academy
program.
9 Students studied Art.
11 Students studied Music.
8 students studied Dance.
3 students studied Art and Music.
4 students studied Art and dance
5 students studied Music and Dance
2 students studied Art, Music and Dance.
Question: How many students did not study Art, Music, or Dance?
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Answer: 0 students did not study Art, Music, or Dance.
Step-by-step explanation:
What is a 5 number summary with an example?
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The five-number summary would therefore be 0, 0.5, 7.5, 44, and 63.
What is a 5 number summary with an example?The first group's median, which is equal to (0 + 1)/2 = 0.5, is in the first quartile's bottom half.The median of the second group is (27 + 61)/2 = 44, which corresponds to the upper or third quartile.The two observations that are the smallest and largest are 0 and 63.The five-number summary would therefore be 0, 0.5, 7.5, 44, and 63.Summary in Five Numbers: ProcedureStarting with the smallest number, arrange your numbers in ascending order.Locate your data set's minimum and maximum in step two.Discover the median in step three.The numbers above and below the median are enclosed in parentheses in step four.Identify Q1 and Q3 in step 5.To learn more about five-number summary refer
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La expresión algebraica de la relación sigue siendo y = 10x, donde x es la cantidad
de entregas a domicilio que realizan, mientras y es el ingreso en soles que
obtienen por ellas.
Representa, mediante un gráfico de valores, la relación entre la cantidad de
envíos a domicilio y el ingreso (S/).
¿Consideras que, para representar la función mediante un gráfico, primero e
fundamental dibujar el plano cartesiano? Justifica tu respuesta.
Algunos estudiantes dibujan la siguiente gráfica, asignan valores al eje de la
abscisas de uno en uno y al eje de las ordenadas de 10 en 10.
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Sí, considero que para representar la función mediante un gráfico, es necesario primero dibujar el plano cartesiano. Esto es porque el plano cartesiano permite representar gráficamente una relación entre dos variables.
Esto también le permite al usuario visualizar los valores que están relacionados y ver cómo se comportan las variables en relación con el otro. El plano cartesiano también le permite al usuario ver los valores que se encuentran fuera del rango de los datos y ayuda a entender mejor la relación entre los datos.
El hecho de asignar valores al eje de la abscisas de uno en uno y al eje de las ordenadas de 10 en 10 no es necesario para representar la función mediante un gráfico, ya que esto depende de las escalas que se elijan para los ejes. Por ejemplo, si la cantidad de envíos a domicilio es el eje x y el ingreso es el eje y, el usuario puede elegir diferentes escalas para los ejes para representar la relación. Por ejemplo, el usuario puede elegir una escala de 1 en 1 para el eje x y una escala de 10 en 10 para el eje y, o una escala de 2 en 2 para el eje x y una escala de 5 en 5 para el eje y.
English version:Yes, I believe that in order to represent the function using a graph, it is essential to first draw the Cartesian plane. This is because the Cartesian plane allows for graphically representing a relationship between two variables. This also allows the user to visualize the values that are related and see how the variables behave in relation to one another. The Cartesian plane also allows the user to see the values that are outside of the range of the data and helps to better understand the relationship between the data.
Assigning values to the x-axis one by one and to the y-axis 10 by 10 is not necessary to represent the function using a graph, as this depends on the scales chosen for the axes. For example, if the number of deliveries is the x-axis and the income is the y-axis, the user can choose different scales for the axes to represent the relationship. For example, the user can choose a scale of 1 to 1 for the x-axis and a scale of 10 to 10 for the y-axis, or a scale of 2 to 2 for the x-axis and a scale of 5 to 5 for the y-axis.
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problem 5. signal transformations given the signal x[n] shown below, sketch and carefully label each of the following signals: a) x[2(n 1)] b) x[n-1]u[-1-n]
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a) x[2(n-1)] is a signal that has been shifted to the right by 1 sample and then scaled by a factor of 2. , b) x[n-1]u[-1-n] is a signal that has been shifted to the left by 1 sample and then multiplied by a unit step function.
a) x[2(n-1)] is a signal that has been shifted to the right by 1 sample and then scaled by a factor of 2. This can be shown graphically by shifting the signal to the right by 1 sample and then halving the width of each sample.
b) x[n-1]u[-1-n] is a signal that has been shifted to the left by 1 sample and then multiplied by a unit step function which is used to clip off all values of the signal before -1. This can be shown graphically by shifting the signal to the left by 1 sample and then removing all values before the -1 sample.
a) x[2(n-1)] is a signal that has been shifted to the right by 1 sample and then scaled by a factor of 2.
b) x[n-1]u[-1-n] is a signal that has been shifted to the left by 1 sample and then multiplied by a unit step function.
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In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Harold has scored 83, 84, and 77 on the first three. What range of scores on the fourth test will give Harold a B for the semester (an average between 80 and 89, inclusive)? Assume that all test scores have a non-negative value. Express your answer in interval notation.
Answers
76≤x≤100 is the range of scores on the fourth test will give Harold a B for the semester.
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
Given that In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests
Harold has scored 83, 84, and 77 on the first three
We have to find the range of scores on the fourth test will give Harold a B for the semester
The sum of the first three is 244
For 4 the sum must be between 320 and 356, for 320/4 is 80 and 356/4 is 89
Therefore 320-244≤ average ≤ 356-244
76≤x≤112
If the score can't be >100, then 100 is the upper limit. From the wording of the question, I would say 76≤x≤100
Hence, 76≤x≤100 is the range of scores on the fourth test will give Harold a B for the semester.
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If the highest exponent of a polynomial function is ___, then the range of the function is always all real numbers.
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The highest exponent of a polynomial function is 0 or positive, then the range of the function is always all real numbers.
When only addition, subtraction, multiplication, and non-negative integer exponentiation of variables are used in an expression, it is referred to as a polynomial. It is made up of variables and coefficients.In an equation such as the quadratic equation, cubic equation, etc., a polynomial function is a function that only uses non-negative integer powers or only positive integer exponents of a variable. For instance, the polynomial 2x+5 has an exponent of 1.
The degree of a polynomial is the highest power of x in its expression. Constant (non-zero) polynomials, linear polynomials, quadratics, cubics, and quartics, respectively, are polynomials of degree 0, 1, 2, 3, and 4.The highest exponent of a polynomial's variable is known as the polynomial's degree.Hence, the highest exponent of a polynomial function is 0 or positive, then the range of the function is always all real numbers.
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Yen Luong owns a used pickup truck that she wants to sell. A used-vehicle guide shows that its average retail value is $17,600. She adds $1,700 for 4-wheel drive, $475 for an entertainment system, $800 for a special trim package, and $225 for power locks. She aiso adds $125 for a sliding rear window, $325 for a towing package, ers0 for power windows, and $3,125 for a diesel engine. She deducts 3615 for having a manual transmission. She adds $450 for having less Tham the expected mileage. What is the average retail price of Yen's
vehicle?
Answers
The answer we have states that the typical retail cost of Yen's car is $21,210.
Is the retail cost the actual cost?The price that the automaker, or manufacturer, advises that the seller ask for the vehicle is known as the Mfg Suggested Retail Price (MSRP). It is not necessary for it to be the price you really pay. Many buyers haggle to get the automobile for less than the MSRP.
We must add the numbers she added and minus the sums she reduced to obtain the vehicle's average retail price.
$17,600 + $1,700 + $475 + $800 + $225 + $125 + $325 + $3,125 + $450 = $24,825
And let's subtract $3,615 as from manual transmission's cost, and brings us back amount approximately $21,210.
Hence, Yen's car has an average retail price of $21,210.
Therefore, the average retail price of Yen's vehicle is $21,210 .
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from the top of a 250-ft lighthouse, the angle of depression to a ship in the ocean is 21°. how far is the ship from the base of the lighthouse? (round your answer to the nearest foot.)
Answers
The ship is at a distance of 651 feet away from the lighthouse.
Therefore the answer is 651.
Let's call the distance from the base of the lighthouse to the ship "d". Then, using basic trigonometry:
tan∅ = opposite side/ adjacent side
So here opposite side is the height of the lighthouse and adjacent side is the distance from the base of the lighthouse.
tan(21°) = height of lighthouse/ d
d = height of lighthouse/ tan(21°)
d = 250 / tan(21°)
d = 250 / 0.384 = 651.3 ft
Rounding to the nearest foot, the ship is 651 ft away from the base of the lighthouse.
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A pole 75 meters tall is stabilized using 3 guy wires spaced 120 degrees apart
around the tower. The guy wires are to be attached to the tower 40 meters up the
tower and anchored 30 meters from the base of the tower. During a wind storm
the tower is bent over between two of the guy wires such that the 2 guy wires are
slack but the third is still tight. The angle that the tight wire makes with the
ground is 34 degrees. How far off vertical is the tower?
Answers
The amount the tower is off vertical by a height of h=74.13 m
Let's call the distance from the base of the tower to the point where the guy wire is attached "h".
This distance is 40 meters.
The length of the tight guy wire is:
L = h + 30
Using the Pythagorean theorem,
We can find the length of the guy wire as:
L^2 = h^2 + 30^2
Substituting the value of h = 40, we get:
L^2 = 40^2 + 30^2
L^2 = 1600 + 900
L^2 = 2500
L = 50
Next, we use the tangent function to find the angle between the vertical and the tight guy wire:
tan(34) = L/h
50/40 = tan(34)
Solving for h, we find:
h = L/tan(34)
h = 50/tan(34)
Finally, subtracting h from the height of the tower, we find the amount the tower is off vertical:
75 - h = 75 - 50/tan(34)
75-h = 75-(50/ 0.6745)
75-h = 75-74.12
75-h =0.87
h=75-0.87
h=74.13 m
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. Generally, which one of the following is the least appropriate measure of central tendency for a data set that contains outliers? a.mean b.median c.2ndquartile d.50thpercentile
Answers
The following is the least appropriate measure of central tendency for a data set that contains outliers is 2ndquartile.
A single number that seeks to characterise a set of data by pinpointing the centre position within that set of data is referred to as a measure of central tendency. As a result, measures of central location are occasionally used to refer to measures of central tendency. They also fit within the category of summary statistics. You are probably most familiar with the mean (sometimes known as the average), but there are additional central tendency measures, including the median and the mode.
The mean, median, and mode are all reliable indicators of central tendency, however depending on the situation, some indicators are more useful than others.
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For the above distribution, find the mean.
Answers
Answer:
3.5
Step-by-step explanation:
1 x 2 = 2
2 x 6 = 12
3 x 4 = 12
4 x 1 = 4
5 x 2 = 10
6 x 5 = 30
1+1+2+2+2+2+2+2+3+3+3+3+4+5+5+6+6+6+6+6 = 70
70 / 20 = 3.5
Find the range for the measure of the third side of a triangle when the measures of the other two sides are 22 in. and 17 in.
Answers
Answer:
The range for the third side is 11 in. to 40 in.
Step-by-step explanation:
The third side of a triangle must satisfy the triangle inequality theorem, which states that the sum of the lengths of any two sides must be greater than the length of the third side. In this case, the two sides have lengths of 22 in. and 17 in., so the third side must have a length between 11 in. (the smaller of the two given lengths) and 40 in. (the sum of the two given lengths).
The sum of the first 6 terms of a geometric sequence is 7812. The common ratio is 5. What is the second term of the sequence?.
Answers
The second term of the geometric sequence is 1260
The sum of the first 6 terms of a geometric sequence is 7812. This means that the formula for the sum of the first n terms of a geometric sequence, Sn = a(1-r^n)/(1-r), can be used to solve for the first term, a. 7812 = a(1-5^6)/(1-5). Solving for a, the first term is equal to 252.
The common ratio is 5, meaning that each term of the sequence is 5 times the previous term. Therefore, the second term is equal to 252 * 5, or 1260. This can also be seen by looking at the sequence, 252, 1260, 6300, 31500, 157500, 787500.
To conclude, the second term of the geometric sequence is 1260. This was calculated by taking the first term and multiplying it by the common ratio, 5.
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how many vertices does a full 5-ary tree with 100 internal vertices have?
Answers
The total number of vertices a full 5-ary tree with 100 internal vertices have is 501.
What is a M-ary Tree ?A tree with m or less offspring at each node is known as an m-ary tree. When m = 2, a binary tree is the particular case, and a ternary tree, which has m = 3 and a maximum of three offspring, is another special case.
A m-ary tree with just a root node has a height of 0, as the height h of an m-ary tree does not include the root node. The maximum depth D of any tree node determines the height of the tree.
In computer science, a collection of nodes often represented hierarchically in the following way is referred to as a "m-ary tree." At the root node, the tree is initiated. A list of pointers to each node's child nodes is kept by each node in the tree. There are less than or as many child nodes as m.
It is given the m-ary tree as 5-ary tree (m)
And the number of Intervals = 100(i)
We can calculate the number of vertices by using
n = m*i + 1 = 100*5 + 1 = 501
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y = 6 cos(x), y = 12x2 − 3
Answers
The equation is y = 12x2 - 3, and it represents a parabola with its vertex at the origin. Its graph is a parabola that slopes downward, and when x = 0, its highest value is 6.
The parabola formed by the equation y = 6cos(x) has its vertex at the origin and faces downward. This equation is expressed as a quadratic function, specifically as y = ax2 + bx + c. Here, an equals 12, b equals 0, and c equals -3. When x = 0, the equation's highest value is 6, indicating that the vertex of the parabola is (0, 6). The value of y drops as x rises, resulting in a parabola that faces downward. Because the graph of this equation is symmetrical around the y-axis, any value of x will have the same y value as any value of -x. The values of this equation recur after a certain amount of time, making it a prime example of a periodic function.
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Conider the equation a(3-x)=2xb
What value of a and b make the olution of the equation x=-2
Answers
Value of a and b make the solution of the equation x=-2 is a=1, b=1.
Given the equation: a(3-x)=-2x+b
If the solution of the equation = -2
Then to find the values of a and b, we substitute = -2 into the equation.
a(3-x) = -2x+b
a(3-(-2)) = -2(-2)+b
5a=4+b
= 5a-b=4
If we make the substitution a=1, b=1 into the abov 5(1)-1= 4 is true.
Therefore: a=1, b=1
The elements in the system of linear equations 2 variables. Variables, namely modifiers or substitutes for a number whose value is not clearly known. Variables are usually symbolized by letters, such as a, b, c, … x, y, z. For example, if there is a number multiplied by 2 then subtracted by 9 and the result is 3, then the form of the equation is 2x – 9 = 3. So x is a variable in the equation. Coefficient, which is a number that describes the number of similar variables.The coefficients are located in front of the variables. For example, there are 2 pencils and 4 markers, if written in the equation is:
Pencil = x , marker = y
So the equation is 2x + 5y. So, because x and y are variables, the numbers 2 and 5 are coefficients.
Constants, namely the value of a number that is constant because it is not followed by a variable behind it. For example the equation 2x + 5y + 7. The constant for this equation is 7, because there is no variable that follows 7. Term, namely the parts of an equation consisting of coefficients, variables, and constants. For example, there is the equation 7x -y + 4, then the terms of the equation are 6x, -y, and 4.Your question is incomplete but most probably your full question was:
Consider the equation a(3-x)=-2x+b
What value of a and b make the solution of the equation x=-2?
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The first, second and fourth terms of a proportion are 16, 24 and 54 respectively. Find the third
term.
(a) 8
(b) 36
(c) 24
(d) 7.1
Answers
Answer:
Third term is 36
Step-by-step explanation:
According to the definition of proportion, if two sets of given numbers are in the same ratio, then the ratios are said to be directly proportional to each other
We use the symbol :: to denote proportion
So if
a:b :: c:d
Then a/b = c/d
We are given that first number = 16, second is 24 and the last is 54
Let the third number be x
We have that
16:24 :: x : 54
In other words
16/24 = x/ 54
Simplifying left side
2/3 = x/54
x = 2/3 x 54 = 36
The upcoming championship high school football game is a big deal in your little town. The problem is, it is being played in the next biggest town, which is two hours away! To get as many people as you can to attend the game, you decide to come up with a ride-sharing app, but you want to be sure it will be used before you put all the time in to creating it. You determine that if more than three students share a ride, on average, you will create the app. You conduct simple random sampling of 20 students in a school with a population of 300 students to determine how many students are in each ride-share (carpool) on the way to school every day to get a good idea of who would use the app. The following data are collected:
6 5 5 5 3 2 3 6 2 2
5 4 3 3 4 2 5 3 4 5
Answers
The parameter used in the probability is the average number of students represented by u.
How to calculate the probability?The confidence interval based on the information will be:
= 3.85 - 2.09(1.348 / ✓20)
= 3.22
Also, 3.85 + 2.09(1.348 / ✓20) = 4.48
The confidence interval simply means that one is 95% confident that the true mean is between 3.22 and 4.48.
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Someone please help me on thisss
Answers
FB^2 = x^2 + x^2 = 2x^2
Now considers triangle FBA
20^2 = 2x^2 + x^2
3x^2 = 400
X^2 = 400/3 = 133.33
X = sqrt 133.333
=
=
What is the slope - intercept form (y=mx+b) of the equation of each line?
Answers
Answer:
7. y = -8/3x+4
8. y = -2/1 + 1
Step-by-step explanation:
Here we can use either rise over run or the slope formula(y2-y1/x2-x1) in order to find the slope. Then looking at the y-axis we can find the y intercept. In the image follow the steps using rise over run.
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a. Find the ratio of the number of nonfiction book to the number of fiction books give your answer in fraction form. Give your answer in fraction form
b. How many times the number of nonfiction books is the number of fiction books? Give your answer in fraction form.
c. Suppose the number fiction books is 2/7 times the number of nonfiction books what would be the ratio of the number of nonfiction books to the number of TOTAL number of books give your answer in fraction form.
Answers
The ratio of nonfiction to fiction books is 49 : 2.
What are ratio and proportion?In its most basic form, a ratio is a comparison between two comparable quantities.
There are two types of proportions One is the direct proportion, whereby increasing one number by a constant k also increases the other quantity by the same constant k, and vice versa.
If one quantity is increased by a constant k, the other will decrease by the same constant k in the case of inverse proportion, and vice versa.
Given, The number of fiction books is 2/7 times the number of nonfiction books.
So, If we have 7 nonfiction books then we have 2/7 fiction books.
Therefore, The ratio Nonfiction : Fiction = 7 : 2/7.
Nonfiction : Fiction = 49 : 2.
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FILL THE BLANK. the term statistics refers to a set of mathematical procedures for ______, _______, and ________ information
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Statistics is a set of mathematical procedures used to collect, analyze, and interpret data.
Generally, it involves collecting data from a sample population, organizing the data into a meaningful manner, and then applying statistical methods to draw conclusions from the data. Statistical methods include descriptive statistics, which summarize the data, and inferential statistics, which use the data to make predictions about a larger population.
Descriptive statistics uses various measures to summarize a population, such as the mean, median, and mode. The mean is the average of all the values in a population and is calculated by adding up all the values and dividing by the number of values. The median is the middle value when all the values in a population are arranged from smallest to largest. The mode is the most frequently occurring value in a population.
Inferential statistics uses the data from a sample population to make predictions about a larger population. For example, a researcher might use a statistical test to determine if a certain treatment is effective. The researcher would collect data from a sample of the population, then use a statistical test to determine if the treatment had an effect on the sample population. If the test is statistically significant, then the researcher can conclude that the treatment is likely to have an effect on the larger population.
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