The new dimension of the matrix t. a is 5 columns and 3 rows.
i) To create a matrix whose entries are all prime numbers below 30 using the matrix() function with five rows, you can use the following code:a <- matrix(c(2, 3, 5, 7, 11, 13, 17, 19, 23, 29), nrow = 5)ii) To extract the second and third row out of a, you can use the following code:a_rows_2_3 <- a[2:3, ]iii) To extract the entry in the 3rd row and first column of a, you can use the following code:a_entry <- a[3, 1]iv)To generate the transpose of the matrix a and save it into t.a, you can use the following code:t.a <- t(a)The new dimension of the matrix t.a is 5 columns and 3 rows.
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What is the value of each function x = 1 can someone explain it
Answer: for x=1, it would be y=50
Step-by-step explanation:
Answer: Function 1 is 45 and Function 2 is 50 I think
Step-by-step explanation:
Write and exponential function in the form y=ab^x that goes through the points (0,11) and (2,396)
To write an exponential function in the form y = ab^x that goes through the points (0,11) and (2,396), we can use the fact that the exponential function is defined as y = ab^x, where a is the initial value and b is the growth factor.
First, we can find the growth factor by using the following equation: b = y2/y1.
In this case: b = 396/11 = 36
Next, we can use the point (0,11) and the growth factor to find the value of a.
Since we know that y = ab^x, we can substitute the point (0,11) and the growth factor into the equation:
11 = a(36)^0
a = 11
So, the exponential function that goes through the points (0,11) and (2,396) is: y = 11 * 36^x
It is important to note that the above function will pass through the points (0,11) and (2,396) but it may not pass through any other points. It is also a good practice to check the function by substituting the point (0,11) and (2,396) to confirm it gives the correct output.
In a cla there are
10 tudent who play football and cricket
7 tudent who don't play football or cricket
14 tudent who play football
21 tudent who play cricket
find the probability that a tudent choen at random play football and cricket
The probability that a student chosen at random plays both football and cricket is 7/20.
The probability that a student chosen at random plays both football and cricket can be found by using the formula for conditional probability:
P(football and cricket) = P(football | cricket) * P(cricket), where P(football | cricket) is the probability of playing football given that the student plays cricket, and P(cricket) is the probability of playing cricket.
Out of the 21 students who play cricket, 14 of them play football as well, so P(football | cricket) = 14/21.
The probability of playing cricket is P(cricket) = 21/40 since there are 40 students in total and 21 of them play cricket. So, the probability that a student chosen at random plays both football and cricket is P(football and cricket) = (14/21) * (21/40) = 14/40 = 7/20.
Therefore, the main answer is the probability that a student chosen at random plays both football and cricket is 7/20.
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Correct question:
In a class, there are 10 students who play football and cricket
7 who do not play football or cricket
14 students who play football
21 students who play cricket
find the probability that a student chosen at random plays football and cricket.
Annabeth is a salaried employee who earns additional compensation for all hours over
40 worked in one week. Her bi-weekly gross earnings are $913.45. If she is paid time-
and-a-half for her overtime hours, what are her bi-weekly gross earnings if she works
47 hours during a week of her pay period? (6 points)
Annabeth's bi-weekly gross earnings, including overtime compensation, would be $1,097.56.
What is amount?Amount is a term used to describe a quantity or size of something. It is used to refer to a number of objects, items, or people, as well as a measure of money, time, or distance. Amount is also used to describe the total sum of money that is owed, received, or spent.
This amount is calculated by multiplying her hourly rate of $21.84 (which is determined by dividing her bi-weekly gross earnings of $913.45 by 40 hours) by 47 hours, which is the total number of hours worked in the week. Then, her overtime compensation of 7 hours is multiplied by her hourly rate of $21.84 multiplied by 1.5, which is the rate for time-and-a-half. The sum of these two amounts is her bi-weekly gross earnings with overtime, which is $1,097.56.
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State the x- and y-intercepts for the given function. Then graph the function. 2x - 3y = 6
The x and y-intercept of the function 2x - 3y = 6 are (3,0) and (0,-2) respectively.
What are the x and y-intercept of the function?Given the function in the question.
2x - 3y = 6
To determine the x-intercept, replace y with 0 and solve for x.
2x - 3y = 6
2x - 3( 0 ) = 6
2x = 6
2x/2 = 6/2
x = 3
Therefore, the x-intercept is (3,0).
Replace x with 0 and solve for y to determine the y-intercept.
2x - 3y = 6
2(0) - 3y = 6
-3y = 6
-3y / -3 = 6 / -3
y = 6 / -3
y = -2
Therefore, the y-intercept is (0,-2).
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evaluate the double integral. d y x2 1 da, d = {(x, y) | 0 ≤ x ≤ 8, 0 ≤ y ≤ x }
This double integral evaluates to a value of 2/3 x
What is double integral?
Double integral is a type of integration which involves the integration of two variables. It is used to calculate the area or volume of a function of two variables. This type of integration is used to solve problems in areas such as physics, engineering, probability and statistics. Double integration can be used to calculate the center of mass of a two-dimensional object, or the moments of inertia of a two-dimensional object. In its most basic form, this type of integration involves the calculation of a limit where two variables are integrated with respect to each other.
To evaluate the double integral, one must use the formula for the area of a two-dimensional region: ∫∫f(x, y)dA = ∫∫f(x, y)dxdy. The limits of integration of the region D must also be taken into account. Thus, the double integral can be evaluated as follows:
∫∫(x^2-1)dA = ∫ 0 to 1
∫ 0 to x (x^2-1)dx dy = 2/3 x
This double integral evaluates to a value of 2/3 x
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if each quadrilateral below is a square, find the missing measures.
i need 33,34,36,37,38
The measure of the lengths is given below:-
ON = 32.52
MN = 32.52
PN = 23
OM = 46
What is geometry?Geometry is a discipline of mathematics that largely deals with the shapes and sizes of objects, their relative positions, and the qualities of space (from the Ancient Greek: geo- "earth," -metron "measuring").
The lengths will be calculated as:-
OM = LN = 46
Area = (1/2) x OM x LN
Area = (1/2) x 46 x 46
Area = 1058
MN² = 1058
MN = 32.52
Hence, the values are ON = 32.52, MN = 32.52, PN = 23, OM = 46.
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In a basement renovation, the contractor
measured the length of a wall in a square
room as 18 ft. 4 in. The width of the
doorway is 3 ft. The contractor plans to place
wood trim along the bottom of each wall.
The trim costs $1.69/ft. What is the cost of
the trim for the room, before taxes?
Simplify the following expression, combining terms as appropriate and combining and cancelling units:
(2.50 x m/s^2) (1000 km/1.00 x 10^3 m) (60.0 s/1.00 min)^2 = ?
The value of the given expression will be 9 x 10^7 m^2/s^2 min^2.
We can simplify the expression as follows:
First, simplify the units of the second term:
(2.50 x m/s^2) (1000 km/1.00 x 10^3 m) = (2.50 x m/s^2) (1000 x 10^3 m/km) = 2500 x m^2/s^2
Next, simplify the units of the third term:
(60.0 s/1.00 min)^2 = (60.0 s)^2/1.00 min^2 = 3600 s^2/min^2
Finally, multiply the two terms to obtain the final expression:
2500 x m^2/s^2 x 3600 s^2/min^2 = 9 x 10^7 m^2/s^2 min^2.
So, the expression evaluates to 9 x 10^7 m^2/s^2 min^2.
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Conider thi ytem of linear equation. 22X -1=-23
11x121-1
(equation 1)
(equation 2)
There are no values of x that would make both equation 1 and equation 2 true at the same time.
To solve for the variables x in this system of linear equations, we need to find the values of x that satisfy both equation 1 and equation 2 simultaneously.
One way to do this is to use the substitution method. We can isolate x in equation 1 and substitute it into equation 2.
Starting with equation 1:
22x - 1 = -23
Adding 1 to both sides:
22x = -22
Dividing both sides by 22:
x = -1
Now, substitute x = -1 into equation 2:
11x + 121 = -1
Substituting x = 1:
11(-1) + 121 = -1
Expanding:
-11 + 121 = -1
Simplifying:
111 = -1
Since 111 is not equal to -1, we can conclude that there is no solution to the system of linear equations. In other words, there are no values of x that would make both equation 1 and equation 2 true at the same time.
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Find The Translation Rule. POINTS UP FOR GRABS! IMAGE BELOW WITH ANSWERS AND FULL QUESTION. GEOMETRY MATHEMATICS. NEEDING ANSWER ASAP
For the above coordinate sets, the translation rule is (x,y)⇒(x+11,y-10).
What is translation?A translation is a sort of transformation that involves sliding each point in a figure the same distance in the same direction. A translation is a transformation that moves every point in a figure in the same direction by the same amount. For example, this transformation shifts the parallelogram 5 units to the right and 3 units up. Translation in geometry refers to shifting a form into a different place without affecting it in any manner. Shape translation is presented to Year 5 students by providing them shapes on squared paper that must be moved a specified number of squares up, down, left, or right.
Here,
(x,y)⇒(x+11,y-10)
The translation rule for the given sets of coordinates is (x,y)⇒(x+11,y-10).
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in calorimetry problems where the temperature of a system increases group of answer choices ∆t > 0 and q = 0. ∆t > 0 and q < 0. ∆t > 0 and q > 0. ∆t < 0 and q < 0.
In calorimetry problems where the temperature of a system increases is ∆[tex]t_{0}[/tex]> , Q>0
What is Temperature?
The physical concept of temperature indicates in numerical form how hot or cold something is. A thermometer is used to determine temperature. Thermometers are calibrated using a variety of temperature scales that traditionally drew their definition from different reference points and thermometric materials.
Reason
The phase change that takes place when a solid melts into a liquid or a gas condenses into a liquid keeps the temperature constant while the thermal energy changes. the second choice is the right one.
When a system's temperature rises in a calorimetry problem, T > 0 and Q > 0. the third choice is the best one.
For every operation in an ideal gas, the change in thermal energy when the temperature changes by T varies.
In calorimetry issues, where a system's temperature rises is ∆t > 0 and q < 0
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A Store-It-All torage facility require uer to enter a four digit code, uing number 0-9, to get through the gate. You need to get a box of winter clothe from your torage container, but you forgot the code. How many poible code are there if the digit cannot be repeated?
There are Anwer
poible code. What i the probability that you will gue the correct code on your firt try?
P(correct code) = Anwer
If the digit can be repeated, how many poible code are there?
There are Anwer
different code
If the numbers cannot be repeated, there can be 5040 possible codes. The probability to select the correct code in first try will be 1/5040. If the digits can be repeated then there can be 10000 possible combinations.
The code can be of digits between 0 to 9. Hence we have a choice of 10 digits
If the number cannot be repeated then the first digit of the code can be selected in
10 ways.
Similarly the second, third and fourth can be selected in 9, 8, and 7 ways.
Hence the code can be formed in
10 X 9 X 8 X 7 ways
= 5040ways
Now out of these 5040 codes, there can be only one code.
The probability to select it in first try i
1/5040
If the digits can be repeated, then we can use 10 digits for every specific number. Hence there can be
10 X 10 X 10 X 10 ways
= 10000 codes.
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help with a measurement question for math
Answer:
127 ft
Step-by-step explanation:
A line from first base to third base , divides the square into 2 right triangles.
using Pythagoras' identity on the top right triangle.
the square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
here the hypotenuse (h) is the line connecting first base to third base and both legs of the triangle are 90 ft , then
h² = 90² + 90² = 8100 + 8100 = 16200 ( take square root of both sides )
h = [tex]\sqrt{16200}[/tex] ≈ 127 ft ( to the nearest foot )
Haltom Middle School provides canvases for students and teachers participating in an art show. The school orders 465 canvases. They plan to give 24 canvases to teachers. They ordered at least 4 canvases for each student. How many students could be participating in the art show?
The required number of students could be participating in the art show are 110.
What is canvases?Canvas is a very sturdy plain-woven fabric that is used to make sails, tents, marquees, backpacks, shelters, supports for oil paintings and other goods that require toughness, as well as in shoes, handbags, and other items of fashion.
According to question:The college purchases 465 canvases. They want to provide teachers 24 canvases. For every student, they ordered at least 4 canvases.
Then, it can be expressed as
Let the number of students = x
4x + 24 = 465
4x = 441
x = 110.25
Thus, there are 110 students in the school.
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Can you find the number bigger than 600 but smaller than 700
translate into a variable expression. Then simplify. a number n decreased by the difference between five and the number.
Translating the given sentence into a variable expression, we have:
2n - 5.
How can we explain it ?we have: n - (5 - n)
Simplifying the expression, we can use the distributive property and combine like terms:
n - 5 + n = 2n - 5
So the simplified expression is 2n - 5.
What is a variable ?A variable is a symbol or letter used to represent a value or set of values in a mathematical expression or equation. The value of a variable can change and can be determined by the problem or context. For example, in the equation y = 2x + 3, x is a variable that represents an unknown value, while y represents a related value that depends on the value of x. Variables are used to represent unknown or changing quantities and can be used to model real-world situations in mathematics.
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what does the e value of 6e 12 mean
The 'e' value of 6e12 means 6 x 10^12, which is equal to 6000000000000. It is a scientific notation used to represent a very large number.
The 'e' value of 6e12 is a scientific notation used to represent a very large number. 6e12 is shorthand for 6 x 10^12, which means 6 multiplied by 10 to the power of 12. To calculate the value of 6e12, first note that 10 to the power of 12 is equal to 1000000000000. Then, multiply 6 by 1000000000000 to get 6000000000000. Therefore, 6e12 is equal to 6000000000000. This notation is commonly used to represent very large numbers without having to write out all of the zeros. It is also useful when dealing with large numbers in scientific calculations.
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complete the orthogonal matrix for an unknown scalar α so its determinant is 1.
the orthogonal matrix for an unknown scalar α so its determinant is 1. then the value of unknown α=-1
We are aware that the number of rows and columns in a square matrix is equal. If the transpose of a square matrix with real numbers or elements equals the inverse matrix, the matrix is said to be orthogonal. Or, we may argue that a square matrix is an orthogonal matrix if the product of the square matrix and its transpose results in an identity matrix.
We know that AA'=I
[tex]\left[\begin{array}{ccc}7&0&a\\0&b&0\\-12&0&c\end{array}\right] \left[\begin{array}{ccc}7&0&a\\0&b&0\\-12&0&c\end{array}\right] =\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right][/tex]
so, after computing a= 4 , b=1 and c =-7
and the value of unknown α=-1
The complete question is :-
Complete the orthogonal matrix for unknown a so its determinate is 1.
O = a[[7,0,?][0,?,0][-12,0,?]]
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912 is the same as:
A. 9102
B. 0.00912
C. 910002
D. 9100002
E. 912
Answer:
The answer is 912
Step-by-step explanation:
The heights of players on two girls basketball teams is measured.
The mean height of the players on Team A is 5 feet 8 inches.
The mean height of the players on Team B is 5 feet 10 inches.
The height of the shortest player on each of the teams is 5 feet 5 inches.
Two new players, Tara and Laney, sign up to join the teams. Tara is 5 feet 9 inches tall and Laney is shorter than Tara. The coach decides to put them on the same team. The heights of the new players are measured and the mean team heights are recalculated.
Select the statement that will ALWAYS be correct.
1. If coach puts Tara and Laney on Team A, the mean height of the players on Team A will be taller than 5 feet 8 inches.
2. If coach puts Tara and Laney on Team A, the mean height of the players on Team A will be shorter than 5 feet 8 inches.
3. If coach puts Tara and Laney on Team B, the mean height of the players on Team B will be taller than 5 feet 10 inches.
4. If coach puts Tara and Laney on Team B, the mean height of the players on Team B will be shorter than 5 feet 10 inches.
4. If coach puts Tara and Laney on Team B, the mean height of the players on Team B will be shorter than 5 feet 10 inches.
Statistical comparisonThis type of problem is known as a statistical comparison problem.In this type of problem, two or more sets of data are compared and analyzed in order to determine the differences or similarities between them.In this particular problem, we are comparing the mean heights of two girls basketball teams and analyzing the effect that adding two new players has on the mean heights.We are then asked to select the statement that will always be correct.This type of problem is a common assessment tool used in statistics to evaluate an individual's understanding of the principles of descriptive statistics.To learn more about statistical comparison refer to:
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what was the mean absolute deviation for 14 14 6 6 10 10 2 18
The mean absolute deviation is 4.06.
What is the mean?The average of a group of variables is referred to as the mean in mathematics and statistics. There are several methods for calculating the mean, including simple arithmetic means (adding the numbers together and dividing the result by the number of observations), geometric means, and harmonic means.
We have data set,
S = {14, 14, 6, 6, 10, 10, 2, 18}
The mean = 78/8
= 9.75
The mean absolute deviation,
= The absolute sum {(14 -9.75) + (14 -9.75) + (6 -9.75) + (6 -9.75) + (10 -9.75) + (10 -9.75) + (2 - 9.75) + (18 - 9.75)} / 8
= 32.5 / 8
= 4.06
Therefore, the value is 4.06.
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Someone help me out please?.
Y intercept is the Y value when x is equal to 0. In the point (0,1) x is 0 and y is 1, so the y-intercept is 1.Slope is-1/4.
What are the y-intercept and slope?When a line crosses the y-axis on a graph, that location is known as the y-intercept.It is always 0 for the associated x-coordinate.
By calculating rise over run, the slope can be determined.This is accomplished by splitting the discrepancies between the y- and x-coordinates. The values of the y-intercept and slope reveal details on the nature of the relationship between the two variables, x and y.
The slope is the change in Y over the change in x:
Slope = (0-1) / 4-0) = -1/4
Slope = -1/4
Y intercept is the Y value when x is equal to 0. In the point (0,1) x is 0 and y is 1, so the y-intercept is 1.
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The equation of the line with points (2,1) and (4,3) in slope intercept form is y = x -1
The slope intercept form with point(1,-1) and slope -3/5 is y = -3x/5 - 2/5
What is a slope intercept form ?When you know the slope of the line to be investigated and the provided point is also the y intercept, you may utilize the slope intercept formula, y = mx + b. (0, b). The y value of the y intercept point is denoted by the symbol b in the formula.
To get the intercepts, we may locate the vertex and either factor it or use the quadratic formula. A quadratic equation's intercept form is written as y = a (x p) (x q), where and are the intercepts, and and are the same value as in standard form.
Ax+By=C is the usual form for two-variable linear equations. A typical form linear equation is, for instance, 2x+3y=5. When an equation is provided in this format, finding both intercepts is rather simple (x and y). When attempting to solve systems involving two linear equations, this form is also quite helpful.
In slope intercept form
y = mx + c
m is the slope and c is the y intercept
for (1,-1) and slope =-3/5
y = mx + c is -1 = -3/5 * 1 + c ⇒ c = -2/5
The slope intercept form is y = -3x/5 - 2/5
Similary we can find the value of others.
Now when we are having 2 points
for (2,1 ) and (4,3)
The slope is (y₂ - y₁)/(x₂-x₁) = (3-1)/(4-2) = 1
The equation will be
y = mx + c
1 = 1*2 + c
⇒ c = -1
The equation of the line in slope intercept form is y = x -1
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A skateboarding ramp is 13 in. high and rises at an angle of 16°. How long is the base of the ramp?
The base of the ramp is 45.34 inches long.
What are trigonometric functions?In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.
Given here: Height of the tramp= 13 in. and angle of elevation at the base =16°
Now we know that Tan 16= 13/base ( tan ∅ = perpendicular/base)
∴ Base= 13/tan 16
=45.34 inches
Hence, The base of the ramp is 45.34 inches long.
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(slope mc) superior segway tours gives sightseeing tours around chicago, illinois. it charges a one-time fee of $55, plus $15 per hour. what is the slope of this situation? 10 15 55 70
Superior segway tours provide sightseeing tours around chicago, illinois. it charges a one-time fee of $55 with $15 per hour. The slope of the situation is 15.
The slope of a situation represents the rate of change of one quantity with respect to another. In this case, the quantity being considered is the cost of the sightseeing tour, and the independent variable is the number of hours the tour lasts. The cost of the tour can be expressed as a linear equation: C = 55 + 15h, where C is the cost and h is the number of hours. The slope of this equation is 15, meaning that for every hour the tour lasts, the cost increases by $15.
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A family buys 6 airline tickets online. The family buys travel insurance that costs $16 per ticket. The total cost is $1,014. Let x represent the price of one ticket. Write an equation for the total cost.
Answer:
6x + 96
Step-by-step explanation:
X represents 1 ticket, and since there are 6 tickets you multiply them, which equals to 6x.
Next, they bout travel insurance that cost $16 for one ticket, and since there are 6 tickets, multiply 16 x 6.
The total cost is the ticket price and the travel insurance so it would be:
6x + 96
integral of the vector field , where is the line from point to point
The integral of a vector field along a curve can be calculated using the concept of line integrals.
The line integral of a vector field F along a curve C is defined as the sum of the dot product of the vector field and the infinitesimal change in position along the curve.
In the case of the vector field F(x,y) = i + xj, the line integral from point A to point B can be calculated as follows:
∫_C F(x,y) • dr = ∫_A^B (i + xj) • dr = ∫_A^B i dx + xj dx
Here, dr represents the infinitesimal change in position along the curve C, and the integrand represents the dot product of the vector field and the change in position.
The line integral can be evaluated using numerical methods or using Green's theorem, which relates the line integral of a vector field along a closed curve to the double integral of the curl of the field over the region enclosed by the curve.
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Write the equation for the linear function shown in the table
y=4x+3 is the equation for the linear function shown in the table
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
The two points from the table are (2, 11) and (3, 15)
m=15-11/3-2
m=4/1
Slope is 4
Now let us find the y intercept
11=4(2)+b
11=8+b
3=b
Hence, y=4x+3 is the the equation for the linear function shown in the table
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walking a steady pace ella walked 11 miles in 3 hours which mixed number shows how many mile he walked in hours
The required number of miles he walked in one hours is 3(2/3) miles.
What is Speed?Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.
According to question:We have,
ella walked 11 miles in 3 hours
We need to find how many miles he walked in 1 hour, Which is called as Speed.
= 11/3 = Speed
= 3(2/3) miles
Thus, required Miles are 3(2/3).
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Dean describes the data in the histogram as having a cluster from 30 to 60 and a peak at 40–49. He says the intervals 0–9 and 80–89 show a 0 frequency. Lastly, he says that the graph is not symmetrical. Why is Dean incorrect?
A. The graph does not show a peak.
B. There is no cluster in this data set.
C. The graph does not show intervals with 0 frequency.
D. The graph is symmetrical.
The correct answer is option D. Dean is incorrect because the graph is symmetrical.
What is a symmetrical graph?A symmetrical graph is one that looks the same on both sides of a centre line. This indicates that the y-values of the points on the graph that are the same distance from the centre line are the same. This results in a symmetrical graph that is aesthetically consistent and easy to understand.
In the given question, Dean is mistaken since the graph is symmetrical. The graph depicts a bell-shaped distribution, with the highest frequency of values grouped around the centre and decreasing frequencies at both ends. Also, the intervals 0-9 and 80-89 have a 0 frequency. The graph, however, does not show a peak; instead, it displays a cluster of numbers ranging from 30 to 60.
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