In the given diagram, the arc length of the given arc is 10.46.
Calculating the length of an arcFrom the question, we are to determine the length of the arc.
From the formula for calculating the length of an arc, we have that
Length of an arc = θ/360° × 2πr
Where θ is the angle subtended by arc at the center of the circle
and r is the radius of the circle
In the given diagram,
Angle subtended = π/3 = 60°
Radius, r = 10
Thus,
The length of the arc = 60/360 × 2πr
Length of the arc = 1/6 × 2×3.14×10
Length of the arc = 10.46
Hence, the length is 10.46
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WR Answer: 10.46
Step-by-step explanation:
he length of the arc = 60/360 × 2πr
Length of the arc = 1/6 × 2×3.14×10
Length of the arc = 10.46
Hence, the length is 10.46
Solve for b.
6+b=a pls help
Answer:
b = a - 6
Step-by-step explanation:
Solve for b:
6 + b = a
6 + b - 6 = a - 6
b + 0 = a - 6
b = a - 6
John started his employment with a salary of Sh. 120,000 per annum which was increased
by Sh. 10,000 every year up to the top of the scale of Sh. 1,500,000 per annum.
REQUIRED
i. In how many years’ time does he reach to the top scale? (3 marks)
ii. What is the total amount he would earn during this period
In 138 years time, john will reach to the top scale and the total amount he would earn during this period will be $1380000.
What is a expression? What is a mathematical equation? What do you mean by domain and range of a function?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.For any function y = f(x), Domain is the set of all possible values of [y] that exists for different values of [x]. Range is the set of all values of [x] for which [y] exists.We have John who started his employment with a salary of $120,000 per annum which was increased by $10,000 every year up to the top of the scale of $1,500,000 per annum.
We can write the equation governing the increase as -
y = 120000 + 10000x
For -
y = 1500000, we can write -
1500000 = 120000 + 10000x
10000(12 + x) = 1500000
x + 12 = 150
x = 138 years
The total amount he would earn during this period will be -
A = 10000 x 138 = $1380000
Therefore, in 138 years time, john will reach to the top scale and the total amount he would earn during this period will be $1380000.
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If {v1, v2, v3} is an orthogonal basis for W, then multiplying v3 by a scalar c gives a new orthogonal basis {v1, v2, cv3}. True or False
If {v1, v2, v3} is an orthogonal basis for W, then multiplying v3 by a scalar c gives a new orthogonal basis {v1, v2, cv3 } is false statement.
Orthogonal basis:
Linear algebra, the orthogonal basis V of the inner product space is the basis of V whose vectors are mutually orthogonal.
When a vector of orthogonal basis is normalized, the resulting basis is an orthonormal basis.
let W be a vector space. The set S= {v₁,v₂,v₃} is an orthogonal basis for W.
The number of basis elements in W = 3 that is the dimensions of W is three.
If we multiply v₃ by c =0, then the set becomes
{v₁, v₂, cv₃} = {v₁, v₂,0}. The dimension of the set is 2, that is less than the dimension of W. If the scalar factor is 0, then it will not give a new orthogonal basis. Since in this case the number of basis elements will be reduced by 1 hence will change dimension of W.
Therefore, The statement is False.
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The display shows musicians' ages in a community orchestra.
1 7 9
2 0 4 4 6
3 2 3 5 5 7
4 2 4 8 9
5 1 2
6 5
Key 1 7 = 17
Which of the following describes this data set?
Answer:
I think Numerical and univariate
Step-by-step explanation:
Answer:
Step-by-step explanation:
This would be numerical and univariate because the information shown represents a stem and leaf plot.
Hope this helps! :)
Joe Jan wants to receive $22,000 each year for the next 22 years. Assume a 6% interest rate compounded annually. How much must Joe invest today? (Round your answer to the nearest cent.)
9482.7 must Joe invest today to receive $22,000 each year for the next 22 years.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
Joe Jan wants to receive $22,000 each year for the next 22 years.
6% interest rate compounded annually.
Convert 6% to decimal value
6/100=0.06
A=P(1+rt)
22000=P(1+0.06(22))
22000=P(1+1.32)
22000=P(2.32)
Divide both sides by 2.32
P=9482.7
Hence, 9482.7 must Joe invest today to receive $22,000 each year for the next 22 years.
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what 29 percent as a decimal
Answer: .29
Step-by-step explanation:
find the absolute maximum and absolute minimum of f (x, y) among points in the triangle with vertices (0, 0), (1, 0), and (1, 1).
The absolute maximum and absolute minimum of f(x,y) = 3 + xy -x - 2y is f(0,0) and f(1,1) respectively.
The absolute maximum point is a point where the function obtains its greatest possible value.
And Absolute minimum is a point where the function obtains its least possible value. This is the smallest value that a mathematical function can have over its entire curve.
Given equation is, f(x,y) = 3 + xy - x - 2y
we will check absolute maximum and absolute minimum of f(x,y) at the points (0,0), (1,0), (1,1).
f(0,0) = 3 + (0)(0) - 0 - 2(0) = 3
f(1,0) = 3 + (1)(0) - 1 - 2 (0) = 2
f(1,1) = 3 + (1)(1) - 1 - 2(1) = 1
Therefore we get absolute maximum at f(0,0) and absolute minimum at f(1,1).
An absolute minimum also called a global minimum, occurs when a point of the function is lower any other point on the function within the function's domain. A local minimum also called relative minimum occurs when a point is lower than the points surrounding it.
Given question is incomplete. Complete question is:
find the absolute maximum and absolute minimum of f (x, y) = 3 + xy - x -2y among points in the triangle with vertices (0, 0), (1, 0), and (1, 1).
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create the line chart using just the data from the order date and total sale columns. be sure to include the header row when selecting the data for the chart.
The line chart can be created using insert tab and then click line symbol in charts group.
How to make line chart in excel?Line chart is a type of chart with line visualization to show information of changing values over time.
Insert tab is tab in excel to insert object, symbol, chart, etc.
To create line chart,
Select the entire columns of order date and total sale (include the header row, ordinary in first row).Click insert tab, then see chart group, next click line symbol.Click one of type of line chart you want.Then, the line chart will appear on sheet with header row.I'm attaching a image for microsoft excel 365 version, your excel version may be different, but the line chart is still in the insert tab.
Thus, to create the line chart use insert tab and in chart group click line symbol.
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Writing equations of lines
Write the equation of each line with the given information
Answer:
y = [tex]\frac{-3}{2}[/tex] x + 2
Step-by-step explanation:
I can see the slight tracings of the slope triangle. I can see that you went down 3 and right 2. That would be a slope of [tex]\frac{-3}{2}[/tex] and the y intercept is 2. That is where the line is crossing the y axis.
How do you regroup 4 digit numbers?
We take carry 1 if there is more then 9 when we are adding or subtracting in the regrouping 4 digit number.
Given that,
We have to find how do we regroup 4 digit numbers.
We know that,
When performing operations like subtraction and addition, regrouping is accomplished by creating groups of tens. Regrouping refers to rearranging integers into place value-based groupings to facilitate operations. Because you must rearrange the numbers into place value to complete the procedure, it is known as regrouping.
Addition with regrouping or addition with carryover refers to additions where the addends' digit sums exceed 9 in any of the columns. Finding the digit sum of two integers requires regrouping. Only the units place digit of the total is then written in the appropriate column.
(1) (1)
3 1 9 5
+ 6 2 3 7
--------------------
9 4 3 2
Therefore, We take carry 1 if there is more then 9 when we are adding or subtracting in the regrouping 4 digit number.
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4 is multiplied by the difference of 5 and a number.
Answer:
The difference is multiplied by 4 can be represented as 4 (x - 1/2) According to the question, 4 (x - 1/2) = 5 x - 1/2 = 5/4 x = 5/4 + 1/2 x = (5 + 2)/4 x = 7/4 Therefore, the number is 7/4.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Im assuming the question is to write this into actual numbers,
answer: 4(5-x)
develop a least squares estimated regression line. (round your numerical values to five decimal places.)
The least squares estimated regression line is 0.5x+1.667
If your data shows a linear relationship between the X and Y variables, you will want to find the line that best fits that relationship. That line is called a Regression Line and has the equation ŷ= a + b x. The Least Squares Regression Line is the line that makes the vertical distance from the data points to the regression line as small as possible. It’s called a “least squares” because the best line of fit is one that minimizes the variance (the sum of squares of the errors).
Data rarely fit a straight line exactly. Usually, it is satisfactory with rough predictions. Typically, you have a set of data whose scatter plot appears to “fit” a straight line. This is called a Line of Best Fit or Least-Squares Line.
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Determine which letter best represents an equivalent fraction.
A.18/20
B.3/15
C.7/8
Answer: A
Step-by-step explanation: when 18/20 is turned into a decimal it comes out as even and is the best one you can choose from
Which of the following represents a one to one function?
A.Students to thier height
B.Students to their weight
C.Students to their LRN
D.Students to their age
Students to their LRN represent a one-to-one function.
If there is exactly one y in the range for every x in the domain of a function f, then that function is a one-to-one function. The range has no y equivalent to more than one x in the domain.
To put it another way, a function is referred to as a "one-to-one" function if various elements of A have different images in B. That is, there are various outputs for various inputs.
Here, each student has a different LRN or Learner Reference Number. No two students will have the same LRN. Therefore, this function is a one-to-one function. The correct option is C.
Two or more students can have the same height, weight, or age. Therefore, the incorrect options are options A, B, and D.
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quadratic function shifted 4 left units, stretched vertically by a factor of 2, reflected over the x-axis, and shifted down 3 units_ a. Write the equation for the transformed function: (3 points) b. Sketch the graph: (2 points)
a. The equation for the transformed function is y = -2(x + 4)^2 - 3.
b. The graph of the transformed function will be a parabola with a vertex located at (x,y)=(-4,-3). The parabola will open downwards, have a maximum at -3, and have a line of symmetry along the x-axis. The parabola will have an x-intercept at x=-4, and will stretch outwards to the right and left infinitely. The graph will look like a U-shaped curve that is shifted down 3 units and has a maximum at -3.
To begin, we can start with the equation of a standard parabola, y=x^2. To shift the parabola 4 units to the left, we can add a -4 to the x term in the equation, giving us y=x^2-4. To stretch the parabola vertically by a factor of 2, we can multiply the equation by -2, giving us y=-2(x^2-4). To reflect the parabola over the x-axis, we can multiply the equation by -1, giving us y=-2(x^2-4) -3. This gives us the equation y=-2(x+4)^2 - 3, which is the equation of the transformed function.
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The universities budget covers cost for nine months what is Amy’s monthly budget for textbooks in course supplies? What is her monthly budget for rent on utilities and food? What is your monthly budget for a personal and miscellaneous cost? what is her total monthly budget?
1. Using division operations, Amy's monthly budget for textbooks and course supplies is $100.
2. Amy's monthly budget for rent, utilities, and food is $1,422.
3. Amy's monthly budget for personal and miscellaneous costs is $251.
4. Amy's total monthly budget is $1,825
How is the monthly budget determined?The total monthly budget is the total budget divided by the period (nine months).
We can use division operations to determine the individual monthly budgets for each expense class.
Living On/Off-Campus:Textbooks and Course Supplies = $900 $100
Rent, Utilities, and Food = $12,798 $1,422
Personal & Miscellaneous Expense = $2,259 $251
Transportation = $468 $52
Total non-tuition expenses = $16,425 $1,825 ($16,425/9)
The number of months = 9 months
Monthly expenses = $1,825
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Please help witht this ones. I need help
28. The pair of angles is classified as: alternate exterior angles.
29. The pair of angles is classified as: alternate interior angles.
30. The measure of the larger angle is of: 160º.
How to classify the pair of angles?In both items 28 and 29, we have that two parallel lines are cut by a transversal, hence the angles are classified as follows:
3 and 6: alternate exterior angles, as they are on the opposite side of the transversal line, and both are outside the region between the two parallel lines.2 and 7: alternate interior angles, as they are between the two parallel lines, on the opposite side of the transversal.What are linear pairs?Two angles are called linear pairs if they are supplementary, that is, if the sum of their measures is of 180º.
In this problem, we have that two angles form a linear pair, hence:
x + y = 180º.
The measure of the greater angle is eight times the measure of the smaller angle, hence:
x = 8y.
Thus:
8y + y = 180
9y = 180
y = 20º.
Then the measure of the larger angle is of:
x = 8y = 8 x 20 = 160º.
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what is the value of x in the equation 2/3(1/2x+12)=1/2(1/3x+14)-3; k 0.03 1.01 k 2.45 1.81 k; which table represents a direct variation function 3 1 2 5 10; what is the solution (a, c) to this system of linear equations?; which is the graph of linear inequality 6x + 2y > โ10?; which input value produces the same output value for the two functions x=-12; which is the graph of y-3=-2/3(x+6); which graph shows the solution to the system of linear inequalities? 2x โ 3y <12 y < โ3
The value for x in the given equation is -24.
Combine. 1/2 and x.
2x/6 + 24/3 = (x/6 + 14/2) -3
2x/6 + 48/6 = (x+42)/6 - 18/6
2x = 42 - 18 - 48
2x = -48
x = -24
A direct variation is a proportionality relationship in which two quantities follow a direct relationship.
An INEQUALITY is a statement which shows that two quantities are not equal or may not be equal. If two quantities are not equal, then one is greater than the other.
≥ (greater than or equal to) means at least that amount or more.
≤ (less than or equal to) means at most that amount or less.
To graph an inequality, treat the <, ≤, >, or ≥ sign as an = sign, and graph the equation. If the inequality is < or >, graph the equation as a dotted line. If the inequality is ≤ or ≥, graph the equation as a solid line.
Please click the image to view the graph
6x + 2y > 10
Replace the input variable in the formula with the value provided.
Calculate the result.
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a hungry statistician analyzed nutritional information from 77 food items available for purchase at a popular coffee shop (seattle's worst). the statistician produces a multiple regression model with response variable calories, and three predictors.
For given regression model, the number 59.89 in the table tells us that for every food item which is sandwich there is a corresponding 59.89-unit increase in Calories.
In this question we have been given a summary of regression model.
We need to explain the meaning of the number 59.89 in the table.
For given regression model, to view the results of the model, we can use the summary() function in R programming.
In given summary consider the 'Coefficients' table.
The first row gives the estimates of the y-intercept, and the second row gives the regression coefficient of the model.
The 'Estimate' column is the estimated effect, also called the regression coefficient or r² value.
The number 59.89 in the table is coefficient for IsSandwich.
This number tells us that for every food item which is sandwich there is a corresponding 59.89-unit increase in Calories.
Therefore, the meaning of the number 59.89 in the table: for every food item which is sandwich there is a corresponding 59.89-unit increase in Calories.
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The complete question is as shown in the following image
A drawer contains 24 spoons and forks. There are three times as many spoons and than forks.
A. Write a system of linear equations that represent the situation.
B. How many spoons are in the drawer?
C. How many forks are in the drawer?
s+f=24 and s=3f are system of equations to represent the situation and there are 18 spoons and 6 folks in the drawer.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Let s=number of spoon
Let f=number of forks
Since there are 3 times as many spoons as forks, s=3f
s+f=24
3f+f=24
4f=24
Divide both sides by 4
f=6
Now put f value in s=3f
s=3(6)
s=18
Hence, s+f=24 and s=3f are system of equations to represent the situation and there are 18 spoons and 6 folks in the drawer.
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The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 36 minutes of calls is
$24.24, and the remaining credit after 55 minutes of calls is $21.20. What is the remaining credit after 63 minutes of calls?
The remaining credit after 63 minutes of calls is $19.92.
What is the remaining credit after 63 minutes of calls?From the information illustrated, the remaining credit after 36 minutes of calls is $24.24, and the remaining credit after 55 minutes of calls is $21.20.
The rate will be:
= (24.24 - 21.20) / (55 - 36)
= 3.04 / 19
= 0.16
The remaining credit after 63 minutes of calls will be:
= $21.20 - ((63 - 55) × $0.16)
= $21.20 - $1.28
= $19.92
The credit is $19.92.
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which of the following numbers does not have 8 as a factor? A. 25424, B. 15000, C. 36502, D. 10008
By dividing, we find The number that does not have 8 as a factor is C. 36502.
what is factor?A factor of a number is a positive integer that divides evenly into the number. For example, the factors of 6 are 1, 2, 3, and 6.
what is division?Division is a mathematical operation that involves dividing one number (the dividend) by another number (the divisor) to determine the quotient, which is the result of the division.
to check whether 8 is a factor of 25424, you can divide 25424 by 8:
25424 / 8 = 3178
Since the result is an integer, 8 is a factor of 25424.
To check whether 8 is a factor of 15000, you can divide 15000 by 8:
15000 / 8 = 1875
Since the result is an integer, 8 is a factor of 15000.
To check whether 8 is a factor of 36502, you can divide 36502 by 8:
36502 / 8 = 4562.75
Since the result is not an integer, 8 is not a factor of 36502.
To check whether 8 is a factor of 10008, you can divide 10008 by 8:
10008 / 8 = 1251
Since the result is an integer, 8 is a factor of 10008.
Therefore, the number that does not have 8 as a factor is C. 36502.
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Determines if a number is prime or composite
12. Choose the words that make the sentence true.
17
prime
The number 7 is plies with
two factors.
composite
because it has
exactly
more than
to 10lbsts els alto alghia
iqhiur
Step-by-step explanation:
the 1 is 2 is 3 so what is 4?
Answer:
Step-by-step explanation:
17 is prime and the number 7 is also prime. Composite numbers are numbers have more than two factors other than 1 and itself. Like 12, 14, and 16.
Jarad Rodriguez deposited $10,000 at 10% compounded semiannually. At the start of year 6, Jarad deposited an additional $5,000 that is compounded at the same rate. At the end of 10 years, what is the balance in Jarad's account? (Do not round intermediate calculations. Round your answer to the nearest cent.)
The balance will be $34,677.45 in Jarad's account, at the end of 10 years.
The balance in the account is computed as illustrated follow as:
Future value = Present value (1 + r)n
Because the amount is compounded semi-annually, the interest rate is split by two and the number of time periods is multiplied by two.
So, the balance in the account is computed as follows:
= $10,000 x (1 + 0.10 / 2)10 x 2 + $5,000 x (1 + 0.10 / 2)5 x 2
= $26,532.97705 + $8,144.473134
= $34,677.45 Approximately
Thus, the balance will be $34,677.45 in Jarad's account, at the end of 10 years.
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a rectangle's length is 3 inches greater than its width. if the perimeter of the rectangle is 30 inches, find the length. (all answers are given in inches.)
The length of the rectangle is calculated to be 9 inches if the length of the rectangle is 3 inches greater than its width
The formula for the perimeter of a rectangle can be given as follows;
perimeter = 2 ( x + y )
Here x represents length and y represents width;
Since the length of a rectangle is 3 Inches more than its width, therefore;
x = y + 3
Since the perimeter of the rectangle is 30 inches, therefore;
2 ( x + y ) = 30
Simplifying by dividing both sides by 2 as follows;
2 ( x + y ) / 2 = 30 / 2
x + y = 15
As x = y + 3; substituting this value in x + y = 15 as follows;
y + 3 + y = 15
Rearranging;
y + y + 3 = 15
2y + 3 = 15
2y = 15 - 3
2y = 12
y = 12 / 2
y = 6
As x = y + 3
x = 6 + 3
x = 9 inches
Hence the width of this rectangle is 6 inches and the length is 9 inches.
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(a) Find inequalities that describe a hollow ball with diameter 80 cm and thickness 0.4 cm. (Assume the ball is centered at the origin of the coordinate system.) O 79.6 sps 80, A S Os 21,0 SQ SA/2 O 39.6 sps 40, A S Os 20, OS Q S 0/2 O 39.6 < p < 40,0 5 Os 21,0 OSN 0.4 sps 40,0 SOSA, OS Q S N/2 79.6 < p < 80,0 Os 21, 0 SQ SA
The integers in the set S:{-79, 80, 39, 40) that will make the inequality 1/0.4(m - 0.4) ≤ 1/21(m - 39) false are: S:{39, 40}.
Determine the integers
In order to determine which integers are true and false with respect to a solution of the given inequality, we would have to test the given integers by substituting their values into the inequality as follows;
For integers (-80, 79), we have:
1/0.4(m - 0.4) ≤ 1/21(m - 39)
1/0.4(-80 - 39) ≤ 1/21(-40 - 39)
1/3(-39) ≤ 1/6(-40)
-39.6 ≤p< -40 (True).
For integers (-80, 79), we have:
1/0.4(m - 80) ≤ 1/21(m - 39)
1/3(24 - 3) ≤ 1/21(24 - 12)
1/3(27) ≤ 1/6(36)
79.6 ≤ p < 80 (False).
For integers (-40, -39), we have:
1/3(27) ≤ 1/6(36)
1/3(24 - 3) ≤ 1/21(24 - 12)
1/0.4(-80 - 39) ≤ 1/21(-40 - 39)
-39.6 ≤ -40 (True).
For integers (-80, 79), we have:
1/3(m - 3) ≤ 1/6(m - 12)
1/3(12 - 3) ≤ 1/6(12 - 12)
1/3(9) ≤ 1/6(0)
3 ≤ 0 (False).
For integers (12, 24), we have:
1/3(m - 3) ≤ 1/6(m - 12)
1/3(12 - 3) ≤ 1/6(12 - 12)
1/3(9) ≤ 1/6(0)
3 ≤ 0 (False).
1/3(m - 3) ≤ 1/6(m - 12)
1/3(24 - 3) ≤ 1/6(24 - 12)
1/0.4(-80 - 39) ≤ 1/21(-40 - 39))
79.6 ≤ p < 80 (False)
1/0.4(m - 0.4) ≤ 1/21(m - 39) false are: S:{39, 40}.
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My age this year is multiple of 8. My age next year is a multiple of 7. How old am I?
8x + 1 = 7
y - x = 1
y = 1 + x
sub 1 + x in eqtn i
8x + 1 = 7 { 1 + x }
8x + 1 = 7 + 7x
8x - 7 = 7 - 1
x = 6
y - 6 = 1
y = 1 + 6
y = 7
So,
8x = 8 x 6 = 48
7y = 7 x 7 = 49
My present years is 48
Next year i will be 49
What is multiple?Multiple can be defined as a number that is the product of a given number and some other natural number. For example when we multiply 7 × 3=21 or 8×3 =24
Therefore my present age is 48 and next year will be 49
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Suppose a math class contains 40 students, 23 females (five of whom speak French) and 17 males (six of whom speak French). Compute the probability that a randomly selected student speaks French, given that the student is male.
6/11 is the probability that a randomly selected student speaks French, given that the student is male
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
There are 11 members who speak french and 5 are females in 11 members
5/11
p(a given b) = p(a and b) / p(b).
6 of the people in the group are men that speak french, then the probability of (a and b) becomes 6/40
probability that a person speaks french is 11/40
p(a given b)=6/40/11/40
=6/40×40/11=6/11
Hence, 6/11 is the probability that a randomly selected student speaks French, given that the student is male.
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In addition to putting books on the shelves, Mandy wants to put CD's on the shelves as well. If each shelf is 28 inches long and each CD is 1 3/ inch thick, how many CD's can she place on a shelf?
There are 9 CD's can she place on a shelf.
What is Division method?
Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Given that;
Each shelf is 28 inches long and each CD is 1 3/ inch thick.
Now,
Since, Each shelf is 28 inches long and each CD is 1 3/ inch thick.
Hence, The number of CD's = 28 x 1/3
= 9.33
= 9
Thus, There are 9 CD's can she place on a shelf.
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estimate the area under the curve given the following fuction, interval, and number of subintervals using the right endpoint method.
The area under the given curve is 77/60. SO the option B is correct.
In the given question we have to estimate the area under the curve given the following fuction, interval, and number of subintervals using the right endpoint method.
The given function is
F(x) = 1/x; [1,5]; n=4
The given options are:
A≈77/240
A≈77/60
A≈77/15
A≈25/3
A≈25/12
Since, f(x) =1/x
∆x = (b-a)/n
∆x = (5-1)/4
∆x =4/4
∆x = 1
Now the table is
x 1 2 3 4 5
f(x) 1 1/2 1/3 1/4 1/5
R(4) = [f(2)+f(3)+f(4)+f(5)]∆x
R(4) = [1/2+1/3+1/4+1/5]1
R(4) = (30+20+15+12)/60
R(4) = 77/60
Hence, the area under the given curve is 77/60. SO the option B is correct.
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The right question is given below: