Answer:
x*$10 + y*$16 = $480
Step-by-step explanation:
The question seems incomplete, and after a search online I've found a lot of similar questions with similar numbers, so I really can not be sure of which one is the complete question.
I suppose that we want to get a linear equation that describes the given situation:
Let's define two variables:
x = number of hours that Maggie works in the office (for $10 each)
y = number of hours that Maggie works driving a tractor (for $16 each).
Then the total amount of money that Maggie gets is:
x*$10 + y*$16
Now we know that she earns $480 per week, then we know that:
x*$10 + y*$16 = $480
This is a linear equation we wanted to get, where (just to be complete) we need to add the restrictions:
x ≥ 0
y ≥ 0
(this means that she can not work a negative number of hours).
PLEASE HELP
I need this done in 15 minutes
Triangle ABC has vertices at A(-5,2), B(1,3), and C(-3,0). Determine the coordinates of the vertices for the image of the pre image is translated 4 units right.
A. A’(-9,2),B’(-3,3), C’(-7,0)
B. A’(-4,6),B’(0,7),C’(1,0)
C. A’(-1,2),B’(5,3),C’(1,0)
D. A’ (-5,-2), B’(-1,-1), C’(-3,-4)
The coordinates of the vertices for the image of the pre image is translated 4 units right are:
C. A' = (-1,2), B' = (5, 3), C' = (1,0)
How to determine the coordinates of the vertices for the image of the pre image is translated 4 units right?A geometric transformation involves taking a geometric object as input and producing a new geometric object as output. We have different types of geometric transformations such as translation, rotation, reflection etc.
A translation moves a geometric object a certain distance in a certain direction. Translation to the right means movement in the positive x-direction.
Thus, the coordinates of the vertices for the image of the pre image if it is translated 4 units right can be obtained by adding 4 to x-coordinate values while y-coordinate values remain the same. That is:
A(-5,2) becomes A'(-5+4, 2) = (-1,2)
B(1,3)becomes B'(1+4, 3) = (5, 3)
C(-3,0) becomes C'(-3+4, 0) = (1,0)
Therefore, the coordinates of the vertices of the image of triangle ABC after it is translated 4 units right are (-1, 2), (5, 3), and (1, 0).
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Given: Quadrilateral DEFG is inscribed in circle P.
Prove: m∠D+m∠F=180∘
The sum of angles ∠D and ∠F in quadrilateral DEFG, inscribed in circle P, is equal to 180∘.
To prove that m∠D + m∠F = 180∘, we can use the property of angles inscribed in a circle.
In a circle, an inscribed angle is equal to half the measure of its intercepted arc. Therefore, if we can show that arc DE + arc FG = 360∘, we can conclude that m∠D + m∠F = 180∘.
Let's start the proof:
1. Quadrilateral DEFG is inscribed in circle P. This means that all the vertices of the quadrilateral lie on the circumference of the circle.
2. Let's consider arc DE and arc FG. These arcs are intercepted by angles ∠D and ∠F, respectively.
3. By the property of angles inscribed in a circle, we know that the measure of an inscribed angle is equal to half the measure of its intercepted arc.
4. Therefore, m∠D = 1/2(arc DE) and m∠F = 1/2(arc FG).
5. We want to prove that m∠D + m∠F = 180∘. This is equivalent to showing that 1/2(arc DE) + 1/2(arc FG) = 180∘.
6. Combining the fractions, we have 1/2(arc DE + arc FG) = 180∘.
7. Now, we need to show that arc DE + arc FG = 360∘.
8. Since quadrilateral DEFG is inscribed in circle P, the sum of the measures of all the arcs intercepted by the sides of the quadrilateral is equal to 360∘.
9. This means that arc DE + arc EF + arc FG + arc GD = 360∘.
10. However, we can observe that arc EF and arc GD are opposite sides of the same chord, so they have equal measures. Therefore, arc EF = arc GD.
11. Substituting arc GD with arc EF in the equation from step 9, we have arc DE + arc EF + arc FG + arc EF = 360∘.
12. Simplifying the equation, we get 2(arc DE + arc EF + arc FG) = 360∘.
13. Dividing both sides by 2, we have arc DE + arc EF + arc FG = 180∘.
14. Comparing this result with step 7, we can conclude that arc DE + arc FG = 180∘.
15. Finally, going back to our initial goal, we can now substitute arc DE + arc FG with 180∘ in the equation from step 6: 1/2(180∘) = 180∘.
16. Simplifying, we have 90∘ = 180∘, which is a true statement.
17. Therefore, we have proven that m∠D + m∠F = 180∘.
Thus, we have successfully proved that the sum of angles ∠D and ∠F in quadrilateral DEFG, inscribed in circle P, is equal to 180∘.
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If h(x) = -2x + 6, find x if h(x) = 12.
[tex]-2x+6=12\\2x=-6\\x=-3[/tex]
you want to install molding around the circular room. How much it would cost you to install the molding that you picked if it cost $4.22 per foot?
The cost of the molding is given as follows:
$119.30.
What is the measure of the circumference of a circle?The circumference of a circle of radius r is given by the equation presented as follows:
C = 2πr.
The parameters for this problem are given as follows:
d = 9 -> r = 4.5.
(as the radius is half the diameter)
Hence the circumference is given as follows:
C = 2 x π x 4.5
C = 28.27 ft.
The cost is of $4.22 per ft, hence the total cost is given as follows:
4.22 x 28.27 = $119.30.
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Integral of 1/(x+cosx)
The integral is ln|x + cos(x)| + C, where C represents the constant of integration.
To find the integral of the function 1/(x + cos(x)), we can employ a combination of algebraic manipulation and the use of standard integration techniques. Here's the solution:
First, let's rewrite the integral in a slightly different form to simplify the process:
∫(1/(x + cos(x))) dx
We notice that the denominator, x + cos(x), is not amenable to direct integration. To overcome this, we employ a substitution. Let's set u = x + cos(x). Now, differentiate u with respect to x: du/dx = 1 - sin(x).
Rearranging this equation, we get dx = du/(1 - sin(x)).
Substituting these values, the integral becomes:
∫(1/(u(1 - sin(x)))) du
Next, we simplify further by factoring out 1/(1 - sin(x)) from the integral:
∫(1/(u(1 - sin(x)))) du = ∫(1/u) du = ln|u| + C
Replacing u with its original expression, we have:
ln|x + cos(x)| + C
Therefore, the answer to the integral is ln|x + cos(x)| + C, where C represents the constant of integration.
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How would you describe the difference between the graphs of f(x) = 2x² and
g(x) = -2x²?
A. g(x) is a reflection of f(x) over the y-axis.
B. g(x) is a reflection of f(x) over the line y = -1.
OC. g(x) is a reflection of f(x) over the line y = x.
D. g(x) is a reflection of f(x) over the x-axis.
SUBMIT
How would you describe the difference between the graphs of f(x) = 2x² and g(x) = -2x²: D. g(x) is a reflection of f(x) over the x-axis.
What is a reflection over the x-axis?In Mathematics and Geometry, a reflection over or across the x-axis is represented by this transformation rule (x, y) → (x, -y).
This ultimately implies that, a reflection over or across the x-axis would maintain the same x-coordinate while the sign of the y-coordinate changes from positive to negative or negative to positive.
In this context, we can reasonably infer and logically deduce that a graph of transformed function g(x) = -2x² would be created by applying a reflection over or across the x-axis to the graph of the parent function f(x) = 2x² as shown in the image attached below.
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The parent absolute value function is reflected across the x-axis and translated right 2 units. Which function is represented by the graph?
–|x – 2|
–|x + 2|
|–x| – 2
|–x| + 2
The function represented by the graph with the given transformations is |–x| + 2.
The function represented by the given transformations is |–x| + 2.
Let's analyze the transformations step by step:
Reflection across the x-axis:
Reflecting the parent absolute value function across the x-axis changes the sign of the function. The positive slopes become negative, and the negative slopes become positive. This transformation is denoted by a negative sign in front of the function.
Translation right 2 units:
Translating the function right 2 units shifts the entire graph horizontally to the right. This transformation is denoted by subtracting the value being translated from the input of the function.
Combining these transformations, the function |–x| + 2 results. The negative sign reflects the function across the x-axis, and the subtraction of 2 units translates it right. The absolute value is applied to the negated x, ensuring that the function always returns a positive value.
Thus, the function represented by the graph with the given transformations is |–x| + 2.
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Answer: -lx-2l
Step-by-step explanation:
The lateral area of a cone is 574 pie cm2. The radius is 19.6cm what is the slant height to the nearest tenth of a cenimeter
The slant height of the cone is approximately 29.29 cm to the nearest tenth of a centimeter.
To solve the problem, we must first understand what the lateral area of a cone is. The lateral area of a cone is the curved surface area of the cone, which does not include the area of the base. It can be calculated by multiplying the slant height of the cone by the circumference of the base.
Using the formula for the lateral area of a cone, we can write:
Lateral area = πrℓ
where r is the radius of the base, and ℓ is the slant height.
Substituting the given values of lateral area and radius, we get:
574π = π(19.6)ℓ
Simplifying the equation, we get:
574 = 19.6ℓ
ℓ = 574/19.6
ℓ ≈ 29.29 cm
In conclusion, we can find the slant height of a cone with a given lateral area and radius by using the formula for lateral area and solving for the slant height. In this case, the slant height was found to be approximately 29.29 cm.
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A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). There are two production methods it could use. With one method, the one-time fixed costs will total 44,907, and the variable costs will be per book. With the other method, the one-time fixed costs will total 22,907, and the variable costs will be 23.25 per book. For how many books produced will the costs from the two methods be the same?
Substituting the given variable cost per book for Method 1 (which is not specified), we can calculate the value of 'x' that makes the costs equal for the two methods.
Let's assume the number of books produced is denoted by 'x'. We need to find the value of 'x' for which the costs from the two methods are the same.
For the first method, the total cost is the sum of the one-time fixed cost and the variable cost per book:
Total cost for Method 1 = 44,907 + (variable cost per book) * x
For the second method, the total cost is the sum of the one-time fixed cost and the variable cost per book:
Total cost for Method 2 = 22,907 + (23.25 * x)
To find the number of books produced when the costs from the two methods are equal, we set the total costs equal to each other and solve for 'x':
44,907 + (variable cost per book) * x = 22,907 + (23.25 * x)
Subtracting (23.25 * x) from both sides and rearranging the equation:
21,000 = 23.25 * x - (variable cost per book) * x
21,000 = x * (23.25 - (variable cost per book))
Dividing both sides by (23.25 - (variable cost per book)):
x = 21,000 / (23.25 - (variable cost per book))
Substituting the given variable cost per book for Method 1 (which is not specified), we can calculate the value of 'x' that makes the costs equal for the two methods.
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In quadrilateral ABCD, angle A is 72, angle B is 94, and angle C is 113. What is angle D
Angle D measures 81 degrees in quadrilateral ABCD.
We have,
To find the measure of angle D in quadrilateral ABCD, we can use the fact that the sum of the angles in any quadrilateral is always 360 degrees.
Let's denote angle D as x. Given that angle A is 72 degrees, angle B is 94 degrees, and angle C is 113 degrees, we can set up the equation:
72 + 94 + 113 + x = 360
Combining the known angle measures:
279 + x = 360
To solve for x, we can subtract 279 from both sides of the equation:
x = 360 - 279
x = 81
Therefore,
Angle D measures 81 degrees in quadrilateral ABCD.
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HELP PLEASEEE I NEED IMMEDIATELY
There are like 4 people watching this question...
Answer:
1335.6
Step-by-step explanation:
volume = pir^2 h = (3.14)(6)^2(15) = (3.14)(36)(15) = (47.1)(36) = 1,335.6
The volume of the tank is 1695.60 ft³.
What is the volume of the tank?A cylinder is a three-dimensional object. It is a prism with a circular base. The volume is the amount of space in an object.
Volume of a cylinder = πr²h
Where:
π = 3.14 h = height = 15r = radius = 6= 3.14 x 6² x 15 = 1695.60 ft³
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Out of 28 students, 12 have at least one brother and 13 have at least one sister. 8 students have both brothers and sisters. How many students do not have either a brother or a sister?
Answer:
The answer is 11
Step-by-step explanation:
brother only=12-8=4
sister only=13-8=5
brother and sister =8
neither of them=x
28=4+8+5+x
28=17+x
x=28-17
x=11
Answer:
11
Step-by-step explanation:
You want to know the number of students with no brother or sister, given that 12 of 28 have at least one brother, 13 have at least one sister, and 8 have both.
Two-way tableThe attachment shows the two-way table that can be formed from the given information. The four given numbers are shown in green at lower right. The other numbers in the table are filled in to make the totals accurate.
The number of students not having either a brother or sister is 11.
__
Additional comment
In terms of probability, which is the fraction that each event is of the total, you have ...
P(B∪S) = P(B) +P(S) -P(B∩S) . . . . . . . useful relation to memorize
P(B'∩S') = 1 -P(B∪S) = 1 -(12/28 +13/28 -8/28) = 11/28
This tells you 11 of the 28 students do not have a brother or sister.
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Using the image below, find the missing part indicated by the question mark.
(3 separate questions)
The missing part indicated in the figures are ? = 12, TX = 9 and x = 20
How to find the missing part indicated in the figuresFigure a
The missing part can be calculated using the following equation
?/(11 - 5) = 22/11
Evaluate the difference
?/6 = 22/11
So, we have
? = 6 * 22/11
Evaluate the expression
? = 12
Figure b
The missing part can be calculated using the following equation
TX/3 = 6/2
So, we have
TX = 3 * 6/2
Evaluate
TX = 9
Figure c
The value of x can be calculated using the following equation
1/4x + 6 = 2x - 29
So, we have
x + 24 = 8x - 116
Evaluate
-7x = -140
Divide
x = 20
Hence, the value of x is 20
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PLS HELP!! I can't figure it out
The dependent and independent variables are distance from destination and time respectively.
The relationship is linear as the change is constantrate of change is -2.05 mi/min139 minutes .The rate of changeRate of change = change in y/Change in x
Rate of change= (244-285)/(20-0)
Rate = -2.05
Helicopter's DestinationWhen the helicopter reaches its destination , y = 0
We can write the traveling equation in the form y = mx + c
Where :
c= intercept ; m = slope
y = -2.05x + 285
At y = 0
0 = -2.05x + 285
-2.05x = - 285
x = 285/2.05
x = 139.02
Hence, the helicopter will reach its destination after 139 minutes .
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Determine whether 548 is greater than or less than 373. Then write the expression showing this using < or >.
Answer:
548 > 373
Step-by-step explanation:
548 is greater than 373 because when we compare the digits from left to right, we find that the first digit of 548 (5) is greater than the first digit of 373 (3). Therefore, we can conclude that 548 is greater than 373.
The ">" symbol is used to represent "greater than" in mathematical comparisons.
Hope this helps!
Please please help I need help and I’m lost thank you
The median of the data set are as follows;
Boys: 45. Girls: 110.
The range of the data set are as follows;
Boys: 45. Girls: 110.
The median and range of girls is greater than the median and range of boys.
What is a median?In Mathematics, a median refers to the middle number (center) of a sorted data set, which is when the data set has either been arranged in a descending order, from the greatest to least or in an ascending order, from the least to greatest.
Based on the information provided in the line plot above, we would determine the median for the data set as follows;
Median of boys = [5th + 6th]/2.
Median of boys = [90 + 90]/2.
Median of boys = 45.
Median of girls = [5th + 6th]/2.
Median of girls = [100 + 120]/2.
Median of girls = 110.
Next, we would determine the range of the data set as follows;
Range = Highest number - Lowest number
Range of boys = 120 - 60
Range of boys = 60.
Range of girls = 120 - 60
Range of girls = 150 - 70.
Range of girls = 80.
In conclusion, we can logically deduce that the median and range for the girls is greater than the median and range of boys.
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Write 3 1/2 cups as a multiplication expression using the unit, 1 cup, as a factor.
I ABSOLUTELY NEED HELP BY TOMORROW!!! I AM GIVING 100 POINTS
3 1/2 cups can be expressed as the multiplication expression: 3 + 1/2.
How to Write 3 1/2 cups as a multiplication expression using the unit, 1 cup, as a factor.To express 3 1/2 cups as a multiplication expression using the unit "1 cup" as a factor, you can write it as:
3 1/2 cups = (3 + 1/2) cups = 3 cups + 1/2 cup
Since there are 1 cup in each term, we can rewrite it as:
3 cups + (1/2) cup
Now, we can express each term as a multiplication expression:
3 cups = 3 * 1 cup = 3
(1/2) cup = (1/2) * 1 cup = 1/2
Putting it all together, the multiplication expression is:
3 * 1 cup + (1/2) * 1 cup = 3 + 1/2
Therefore, 3 1/2 cups can be expressed as the multiplication expression: 3 + 1/2.
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a candle starts at 9 inches long. after burning for 4 hours , it was 7 inches tall.
a. how would you categorize this situation as a function? circle one
Answer:
a. How would you categorize this situation as a function? Circle one:
Linear function
Quadratic function
Exponential function
None of the above
The given situation can be categorized as a linear function.
Step-by-step explanation:
ham
Write a quadratic equation with the given roots. Write the equation in the form a * x ^ 2 + bx + c = 0 where a, b, and c are
integers.
5/4 : and 9
The quadratic equation from the given root is 4x² - 41x + 45 = 0
Writing a quadratic equation from the given rootFrom the question, we have the following parameters that can be used in our computation:
Roots = 5/x and 4
The equation of the function can be calculated as
(x - root) * (x - root) = 0
using the above as a guide, we have the following:
(x - 5/4) * (x - 9) = 0
When expanded, we have
(4x - 5)(x - 9)/4 = 0
This gives
4x² - 5x - 36x + 45 = 4 * 0
So, we have
4x² - 41x + 45 = 0
Hence, the quadratic equation from the given root is 4x² - 41x + 45 = 0
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Find the value of each variable
The value of angle k is determined as 60⁰.
The value of angle m is determined as 120⁰.
What is the measure of angle m and angle k?The measure of angle m and k is calculated by applying the following theorem as follows;
The value of angle k is calculated as;
60 + 2k = 180 (opposite angles of a cyclic quadrilateral are supplementary)
60 + 2k = 180
2k = 180 - 60
2k = 120
k = 120/2
k = 60⁰
The value of angle m is calculated as;
m + 60 = 180 (opposite angles of a cyclic quadrilateral are supplementary)
m = 180 - 60
m = 120⁰
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the closure property applies to addition, subtraction, and multiplication. Why does the closure property not apply to the division of polynomials?
The closure property does not hold for division of polynomials because the result may not be a polynomial itself.
The closure property states that if you perform an operation on two elements within a certain set, the result of that operation will also be within the same set.
In the case of addition, subtraction, and multiplication, this property holds true, but it does not apply to the division of polynomials.
When dividing polynomials, the result may not always be a polynomial. Division involves dividing the coefficients of the terms and subtracting exponents, which can result in fractional or negative exponents.
These fractional or negative exponents indicate that the result is not a polynomial, but rather a rational function or a polynomial with non-integer exponents.
For example, consider dividing the polynomial x^2 by the polynomial x. The result is x, which is a polynomial. However, if you divide x^2 by x^2 + 1, the result is 1 / (1 + 1/x^2), which is a rational function, not a polynomial.
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Which number line shows the solution of - 5x + 20 < 35?
Answer:
15, 14, 13, 12, 11 and so on
Step-by-step explanation:
2x − y < 4
x + y > −1
In each graph, the area for f(x) is shaded and labeled A, the area for g(x) is shaded and labeled B, and the area where they have shading in common is labeled AB.
The graph should visually represent the shaded regions A and B, as well as their overlap in region AB. It's important to note that without a specific scale or values, the graph may not accurately depict the exact shape and position of the shaded regions.
To graph the system of inequalities 2x - y < 4 and x + y > -1, we can start by graphing each inequality separately and then determining the overlapping region.
For the inequality 2x - y < 4:
Start by graphing the line 2x - y = 4. Choose two points on the line, such as (0, -4) and (2, 0), and connect them to draw the line.
Since the inequality is "less than" (<), shade the region below the line. Label this shaded region as A.
For the inequality x + y > -1:
Graph the line x + y = -1 using points such as (-2, 1) and (0, -1). Connect the points to draw the line.
Since the inequality is "greater than" (>), shade the region above the line. Label this shaded region as B.
Finally, identify the overlapping region of the shaded regions A and B. This region represents the solution to the system of inequalities and is labeled as AB. This region indicates the values of x and y that satisfy both inequalities simultaneously.
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Answer:
Step-by-step explanation:
2x − y < 4
x + y > −1
In each graph, the area for f(x) is shaded and labeled A, the area for g(x) is shaded and labeled B, and the area where they have shading in common is labeled AB.
the age of some kids that partecipate to a race are
13 13 17 16 15 15 18 14 18 17 16 17 15 15 15 14 15 14 16 15
a) put from least to biggest, create a table and calcolate the absolute frequency, relative and percentual.
b) Reppresent graphically with a histogram the absolute frequency.
c) calcolate mode mean median
Calcolate the probability of having
d) 13 years old
e) 14 or 16 years old
f) doesn't have 15 years
I WILL GIVE BRAINLY IF YOU GIVE ME THE RIGHT ANSWERS
c) Mode: 15 (appears 6 times)
Mean: 15.25
Median: 15
d) Probability of being 13 years old: 2/20 = 0.1 or 10%
e) Probability of being 14 or 16 years old: 6/20 = 0.3 or 30%
f) Probability of not having 15 years old: 1 - (6/20) = 14/20 = 0.7 or 70%
a) To create a table and calculate the absolute frequency, relative frequency, and percentual frequency, we organize the given ages in ascending order:
13 13 14 14 15 15 15 15 15 16 16 17 17 17 18 18
Age Absolute Frequency Relative Frequency Percentual Frequency
13 2 2/16 12.5%
14 2 2/16 12.5%
15 5 5/16 31.25%
16 2 2/16 12.5%
17 3 3/16 18.75%
18 2 2/16 12.5%
b) To represent the data graphically with a histogram, we plot the ages on the x-axis and the absolute frequency on the y-axis:
c) To calculate the mode, mean, and median:
Mode: The mode is the most frequently occurring age in the dataset. In this case, the mode is 15, as it appears 5 times.
Mean: The mean is the average of all the ages. To calculate it, we sum up all the ages and divide by the total number of ages:
(13 + 13 + 14 + 14 + 15 + 15 + 15 + 15 + 15 + 16 + 16 + 17 + 17 + 17 + 18 + 18) / 20 = 306 / 20 = 15.3
Median: The median is the middle value in the dataset when arranged in ascending order. In this case, the median is 15 since it falls in the middle.
d) To calculate the probability of having 13 years old, we divide the absolute frequency of 13 (2) by the total number of ages (20):
Probability of 13 years old = 2/20 = 0.1 or 10%
e) To calculate the probability of having 14 or 16 years old, we add the absolute frequencies of 14 and 16 (2 + 2 = 4) and divide by the total number of ages (20):
Probability of 14 or 16 years old = 4/20 = 0.2 or 20%
f) To calculate the probability of not having 15 years old, we subtract the absolute frequency of 15 (5) from the total number of ages (20):
Probability of not having 15 years old = (20 - 5)/20 = 0.75 or 75%
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Find the measurement of RS
134 degrees is equivalent to the measure of arc RS
Circle GeometryIn order to determine the measure of the arc RS, we will use the theorem below:
The measure of the angle at the vertex is half that of its intercepted arc. Based on the theorem, we can set up the equation:
arcRS = 2m<Q
arcRS = 2(67)
arcRS = 134 degrees
Hence the measure of the arc RS from the given circle is equivalent to 134 degrees
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(q9) Find the volume of the solid obtained by rotating the region enclosed by the curves
and y = x2 about the y-axis.
The volume of the solid obtained by rotating the region enclosed by the curves [tex]y=\sqrt{x^3}[/tex] and [tex]y = x^2[/tex] about the y-axis is [tex]\pi/14[/tex] . option B
To determine the solid's volume after rotating the area bounded by curves
[tex]y = \sqrt{x^3}[/tex] and [tex]y = x^2[/tex]
We can apply the cylindrical shell approach to the y-axis.
First, let's locate the spots where the two curves intersect:
[tex]\sqrt{x^3} = x^2[/tex]
Squaring both sides:
[tex]x^3 = x^4[/tex]
Rearranging:
[tex]x^4 - x^3 = 0[/tex]
Factorizing [tex]x^3(x - 1) = 0[/tex]
Therefore, the locations of intersection are x = 0 and x = 1.
The integral for the solid's volume must then be set up using cylindrical shells. The following formula determines the volume of a cylindrical shell:
V is equal to 2[a, b] x * h(x). dx where a and b are the integration limits, x is the shell's radius, and h(x) is the height of the shell.
The radius of the shell in this instance is x, while the height of the shell is the ratio of the two curves: [tex]h(x) = \sqrt{x^3} - x^2.[/tex]
Since those are the locations of intersection, the range of integration's bounds is 0 to 1.
The integral then becomes:
∫[tex]V = 2\pi [0, 1] x * (\sqrt{x^3} - x^2) dx[/tex]
We can simplify the formula inside the integral in order to evaluate it:
V = 2π ∫[0, 1] (x^(5/2) - x^3) dx
We can integrate each word by applying the power rule for integration as follows:
[tex]V = 2\pi [(2/7)x^{(7/2)} - (1/4)x^{4}] |[0, 1][/tex]
Calculating the limits of the definite integral:
[tex]V = 2\pi [(2/7)(1^{(7/2))} - (1/4)(1^{4)}] - 2\pi [(2/7)(0^{(7/2})) - (1/4)(0^{4)}][/tex]
Simplifying further:
V = 2π [(2/7) - (1/4)]
V = 2π (8/28 - 7/28)
V = 2π/28
Simplifying the fraction:
V = π/14 ,Therefore, the correct answer is option B.
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A solid figure is composed of a cube and a right triangular
prism. The figure and some of its dimensions are shown in
this diagram.
- 8 cm
What is the volume of the figure?
A
6 cm
B
560 cubic centimeters
704 cubic centimeters
C 728 cubic centimeters
Answer:
Option B
Step-by-step explanation:
704 cubic centimeters
please help me this is kinda hard
Answer: 14.4 ft^2
Step-by-step explanation: The formula for the area of a triangle is A=1/2(b)(h). B is the base of the triangle and h is the height. First solve for the top part of the triangle. A=1/2(2)(3.2). A=3.2 ft^2. The 2 triangles on top are congruent, so you can multiply the area for the 1st triangle by 2 to get the combined area of the 2 top triangles. 3.2*2=6.4 ft^2.
Now we will solve for the 2 bottom triangles. A=1/2(2)(4). A=4 ft^2. The 2 triangles on the bottom are also congruent, so multiply the area that we got by 2 to get the combined area of both bottom triangles. 4*2=8 ft^2.
Finally, add both values to get the total area. 6.4+8=14.4 ft^2.
A manufacturer is designing a two-wheeled cart that can maneuver in tight spaces. On one test model, the wheel placement (center) and radius are modeled by the equation (x – 4)2 + (y + 1.5)2 = 4. Which graph shows the position and radius of the wheels?
SOMEONE HELP PLEASE!
The circle should be a circle centered at point (4,-1.5) and have a radius of 2.The equation (x - 4)^2 + (y + 1.5)^2 = 4 represents a circle with a center at (4, -1.5) and a radius of 2.
To identify the graph that shows the position and radius of the wheels, we look for a graph that depicts a circle with a center at (4, -1.5) and a radius of 2.
Among the options provided, the graph that corresponds to the given equation is likely the one that shows a circle with its center at (4, -1.5) and a radius of 2.
The equation provided is a standard form of a circle equation which states that the center of the circle is (4,-1.5) and the radius is 2 (square root of 4). Any graph with a circle centered at (4,-1.5) and a radius of 2 will represent the position and radius of the wheels of the test model.
Of the options given in the answer section, option (D) is the graph that shows the position and radius of the wheels since it represents a circle with center (4,-1.5) and a radius of 2.
It is also important to note that a circle equation in standard form is (x-h)^2+(y-k)^2=r^2, where (h,k) is the center of the circle and r is the radius.
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A. Saving money at the grocery store by using unit pricing.
a. Toilet paper A is 6 mega rolls for $4.59.
Toilet paper B is 12 mega rolls for $9.02
How to I find which one is the better deal?
Based on the calculations using unit pricing, Toilet paper B has a lower unit price and is the better deal between the two. Customers will save more money if they purchase toilet paper B rather than toilet paper A because the price per mega roll is lower. (option b)
Saving money while shopping is one of the best ways to reduce your expenses and have more disposable income for other things. Unit pricing is a pricing system that displays prices in standard units, allowing customers to compare prices across different brands and package sizes and save money. To determine which toilet paper deal is better, we can use the unit price method, which divides the price by the number of units in the package. The toilet paper with the lower unit price is the better deal.
The formula for unit pricing is as follows:
Unit price = total price ÷ number of units
Using the above formula, we can calculate the unit price of toilet paper A and toilet paper B as follows:
For Toilet paper A:
Unit price = $4.59 ÷ 6 mega rolls
Unit price = $0.765 per mega roll
For Toilet paper B:
Unit price = $9.02 ÷ 12 mega rolls
Unit price = $0.751 per mega roll
Therefore, based on the calculations, Toilet paper B has a lower unit price and is the better deal between the two. Customers will save more money if they purchase toilet paper B rather than toilet paper A because the price per mega roll is lower. (option b)
Unit pricing is a great way to compare prices, and consumers should always use it to determine the better deal between two products, as this will help them save money and stick to their budget.
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