The shape that is generated when a two-dimensional object is rotated about an axis is a cylinder.
What is a cylinder?A cylinder is a three-dimensional geometric shape that consists of two parallel circular bases connected by a curved surface. The bases are congruent and lie in parallel planes, and the curved surface is formed by connecting corresponding points on the two bases with straight lines.
The axis of a cylinder is a line passing through the center of both bases. The volume of a cylinder can be calculated by multiplying the area of the base by the height, and the surface area can be calculated by summing the areas of the two bases and the curved surface.
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Find the sum of the first 33 terms of the following series, to the nearest integer.
2,11, 20, ...
The sum of the first 33 terms of the following series, to the nearest integer is 4818.
What is the sum of the first 33 terms?The sum of the first 33 terms of the following series, to the nearest integer is calculated as follows;
n = (n/2)(2a + (n-1)d)
where;
n is the number of terms in the seriesa is the first term of the seriesd is the common difference of the seriesFrom the given parameters, we have;
n = 33
a = 2
d = 9
The sum of the first 33 terms is calculated as;
S(33) = (33/2)(2x2 + (33-1)(9))
S(33) = (33/2)(4 + 32(9))
= (33/2)( 4 + 288)
= (33/2)(292)
= 33(146)
= 4818
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How many different passwords can come from the word Alabama
There are 5040 different passwords that can be created from the word "Alabama" when using all the letters.
To calculate the number of different passwords that can be created from the word "Alabama," we need to consider the total number of permutations.
The word "Alabama" contains 7 letters. To find the number of different passwords, we need to calculate the number of permutations of these 7 letters.
The formula to calculate permutations is given by:
nPr = n! / (n - r)!
Where n is the total number of items (letters in this case), and r is the number of items selected (length of the password).
For the word "Alabama," let's assume we want to create passwords of length 7, using all the letters.
n = 7 (number of letters in "Alabama")
r = 7 (length of the password)
Using the formula, we can calculate the number of permutations:
7P7 = 7! / (7 - 7)!
= 7! / 0!
= 7! / 1
= 7 × 6 × 5 × 4× 3 × 2 × 1
= 5040
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Using quadratic formula
As per the given equation, when a = 3 and b = -2, the value of the expression [tex]b^2[/tex] - 4ab is 28.
When a = 3 and b = -2, we replace the given values into the formula and make the necessary calculations to evaluate the expression b² - 4ab.
Now,
[tex](-2)^2 - 4 * 3 * (-2)[/tex]
4 - 4 * 3 * (-2)
Multiplying -4 and 3 gives us -12, so the expression becomes:
4 - (-12) * (-2)
Multiplying -12 and -2 gives us 24, so the expression further simplifies to:
4 + 24
Adding 4 and 24 together yields:
28
Therefore, when a = 3 and b = -2, the value of the expression b² - 4ab is 28
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Your question seems incomplete, the probable complete question is:
Using quadratic formula, Evaluate b²-4ab when a= 3, b = -2
writing a function model for the graph, step by step please !!
The function which is modeled by the graph is y=2x+4.
We have to find the function in the given graph.
The line is passing through the points (-1, 2) and (0, 4).
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
Slope = 4-2/0+1
=2
Now let us find the y intercept.
4=2(0)+b
b=4
So the function is y=2x+4.
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Determine whether each pair of polygons are similar if so right a similarity statement
The polygons are not similar because they do not have a constant similarity ratio
Determining whether the polygons are similar.From the question, we have the following parameters that can be used in our computation:
The polygons
To check if the polygons are similar, we divide corresponding sides and check if the ratios are equal
So, we have
Scale factor = 150/100 = 151/100
Scale factor = 1.5 = 1.51 --- false
Hence, the polygons are not similar
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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Multiply and simplify if possible. SHOW YOUR WORK.
[tex](2\sqrt{3x}-2)(3\sqrt{3x}+5 )[/tex]
To multiply the given binomials, we use the distributive property. So, the multiplication of the given binomials (2√3x - 2) and (3√3x + 5) is 18x + 4√3x - 10.
Using the distributive property which is given as: (a+b) (c+d) = a*c + a*d + b*c + b*d.
To multiply the binomials (2√3x - 2) and (3√3x + 5), we need to apply the distributive property which will result in four different terms.
Using the distributive property: (2√3x - 2) (3√3x + 5)= (2√3x * 3√3x) + (2√3x * 5) - (2 * 3√3x) - (2 * 5)= 6√(3x*3x) + 10√3x - 6√3x - 10= 6√9x² + (10-6)√3x - 10= 6 * 3x + 4√3x - 10= 18x + 4√3x - 10.
Therefore, the multiplication of the given binomials (2√3x - 2) and (3√3x + 5) is 18x + 4√3x - 10.
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Alvin’s average paddling rate was ____
The required answer is: it is not possible to determine Alvin's average paddling rate based on the given information.
Given that table of terms Distance, Rate and Time
Against the current d r - 2 km/hr 8 hours
With the current d r + 2 km/hr 3 hours
To set up an equation to solve for Alvin's average paddling rate, we can use the formula: rate = distance/time.
For the first row : (r - 2 km/hr) = d/8.
For the second row: (r + 2 km/hr) = d/3.
To solve for r, we can equate the rates against the current and solve for r.
(r - 2 km/hr) = (r + 2 km/hr)
Simplifying the equation, we get: r - 2 = r + 2.
By solving this equation, we find that the "r" terms cancel out, resulting in -2 = 2, which is not a true statement. This indicates that there is no solution for Alvin's average paddling rate in this scenario.
Therefore, it is not possible to determine Alvin's average paddling rate based on the given information.
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If the family plans to move to their retirement home in 10 years which pool would be more cost effective to install how do you know
The Watkins family should install a chlorine pool to be more cost-efficient.
How to compare to graphs?In order to compare the two graphs we take a value on the x-axis and then measure the output of the two graphs. This can be done with the help of the graph or by substituting the value of x in the function to measure the output y.
As in the given graph, the x-axis denotes the year while the y-axis denotes the cost of maintaining the pool in that year.
If we compare the two of the given graph we will find the cost of maintaining a chlorine pool is less as compared to a salt water pool at x=10, therefore, after 10 years.
Hence, the Watkins family should install a chlorine pool to be more cost-efficient.
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50 Points! Multiple choice geometry question. Photo attached. Thank you!
The probability that a randomly selected permutation of the letters A, A, B, C, S, U would spell "abacus" is:
(A) 1/720
How to find the probability that a randomly selected permutation of the letters A, A, B, C, S, U would spell "abacus"?Probability is the likelihood of a desired event happening. Mathematically:
Probability = Number of occurrence / Number of possible outcomes
The number of permutations of 6 letters is:
6! =720
Out of these 720 permutations, only one spells "abacus" (based on the arrangement of letters).
Thus, the probability that a randomly selected permutation of the letters A, A, B, C, S, U would spell "abacus" is:
1/720
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Rotate the given triangle 90°
counter-clockwise
about the
origin.
The matrix corresponding to the vertices of the triangle after the rotation is given as follows:
[0 -1 -2]
[0 -3 1]
What are the rotation rules?The five more known rotation rules are given as follows:
90° clockwise rotation: (x,y) -> (y,-x).90° counterclockwise rotation: (x,y) -> (-y,x).180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y).270° clockwise rotation: (x,y) -> (-y,x).270° counterclockwise rotation: (x,y) -> (y,-x).The vertices of the original triangle are given as follows:
(0,0), (-3,1) and (1,2).
The rotation rule is given as follows:
(x,y) -> (-y, x).
Hence the vertices of the rotated figure are given as follows:
(0,0), (-1, -3) and (-2, 1).
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Determine the perimeter of a square with a diagonal length of 8 feet.
a. 4√2
b. 16√2
c. 8√2
d.16√4
The perimeter (P) by multiplying the side length by 4:
P = 4 * (4√2) = 16√2
The answer: b. 16√2
To find the perimeter of a square with a diagonal length of 8 feet, first, you need to determine the side length. In a square, the diagonal length (d) is related to the side length (s) through the Pythagorean theorem as follows:
d = s√2
Now, plug in the given diagonal length (8 feet) and solve for s:
8 = s√2
s = 8/√2
s = 4√2 (simplified by multiplying both numerator and denominator by √2)
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In each diagram, line f is parallel to line g, and line t intersects lines f and g
In each diagram, line f is parallel to line g, and line t intersects both lines f and g. The given information suggests the application of certain geometric properties and relationships.
Firstly, when a transversal line (line t) intersects two parallel lines (lines f and g), it creates several pairs of corresponding angles.
Corresponding angles are congruent, meaning they have equal measures. This property can be used to determine the measures of specific angles in the diagram.
Secondly, when a transversal intersects parallel lines, it also creates alternate interior angles and alternate exterior angles.
Alternate interior angles are congruent, as well as alternate exterior angles.
By utilizing these properties and relationships, one can analyze the diagram and determine the measures of various angles.
It is important to measure angles systematically and compare them to find congruent or equal measures.
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The graph shows the hourly wage requirement m (in dollars) *
for employees in a state. Which inequality represents
the state's hourly wage requirement. (section 2.2)
7.5
8
m≥ $9.5 per hour
m> $9.5 per hour
m≥ $9.25 per hour
m> $9.25 per hour
8.5
9
9.5 10
1 point
An inequality that represents the state's hourly wage requirement include the following: C. m ≥ $9.25 per hour.
What is an inequality?In Mathematics and Geometry, an inequality simply refers to a mathematical relation that is typically used for comparing two (2) or more numerical data and variables in an algebraic equation based on any of the inequality symbols;
Greater than (>).Less than (<).Greater than or equal to (≥).Less than or equal to (≤).Assuming the variable m represent the state's hourly wage requirement. Additionally, each interval on the number line represent 0.25 per hour.
Since the shaded circle (dot) is located at point 9.25 and the arrows points or increases to the right, an inequality that represents the state's hourly wage requirement is m ≥ $9.25 per hour.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
The figure below depicts a company's customer analysis based on gender and age group.
What percentage of age-groups has more male customers than female customers?
- 37.5%
- 40%
- 50%
- 62.5%
The percentage of age-groups has more male customers than female customers is approximately 50%.
The given graph depicts a company's customer analysis based on gender and age group.
Male percentage is more between the age 30-34, 45-49, 50-54 and 55-59.
Here, percentage = 20/41 ×100
= 0.487×100
= 48.7%
≈ 50%
Therefore, option B is the correct answer.
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a plant has an initial height of 7 inches and grows at a constant rate of 3 inches each year. a second plant also grows at a constant rate has an initial height of 2 inches and is 14 inches tall after 3 years. after how many years are the plants the same height.
Let "x" be the number of years it takes for the two plants to be the same height.The first plant has an initial height of 7 inches and grows at a constant rate of 3 inches each year. So, the two plants will be the same height after 5 years.
Therefore, after "x" years, its height will be:7 + 3xThe second plant also grows at a constant rate and has an initial height of 2 inches. After 3 years, its height is 14 inches.
Therefore, its rate is: Rate = (Final height - Initial height) / TimeRate = (14 - 2) / 3Rate = 12 / 3Rate = 4So, after "x" years, the second plant's height will be:2 + 4x.
To find when the plants are the same height, we can set the expressions for their heights equal to each other:7 + 3x = 2 + 4xSolving for "x":3x - 4x = 2 - 73x = -5x = -5/(-1). Therefore, x = 5, the two plants will be the same height after 5 years.
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Solve for the rate (as a %). Round to the nearest tenth of a percent when necessary. What is the rate if the base is 366 and the portion is 50?
Answer:
[tex]\Huge \boxed{\text{13.66$\%$}}[/tex]
Step-by-step explanation:
To find the rate, we need to use the following formula:
[tex]\LARGE \boxed{ \boxed{\text{Rate = $\frac{\text{Portion}}{\text{Base}}$$\times$100}}}[/tex]
Where "Portion" is the part of the whole and "Base" is the whole.
Now, let's plug in the given values:
[tex]\large \text{Rate = $\frac{\text{50}}{\text{366}}$$\times$100 = 13.66 (Rounded to the nearest tenth of a percent)}[/tex]
Therefore, the rate is 13.66% (rounded to the nearest tenth of a percent).
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What is the equation of function in slope-intercept form?
3x+y=1
y-1=-3x
y-4=-3(x+2)
y= -3/2x+1
Answer:
y= -3/2x+1
Step-by-step explanation:
slope intercept is y = mx + b form
so the answer is y= -3/2x+1
dean bought 1.75 pounds of swiss cheese from the deli, Then he bought a 24 ounce package of cheddar cheese in the dairy section. Which type of cheese did he have more of
Answer:
the dean bought more of swiss than cheddar because hee only bought 1.5 pounds of cheddar and 1.7 of swiss
Step-by-step explanation:
What is the midline of the function graphed below?
1
2
3
4
5
The midline of the graphed function is y = 3.
What is the midline of the function graphed?For a sinusoidal function, we define the midline as the value that the function takes when the sinusoidal term is equal to zero.
So, for example in:
f(x) = k*sin(x) +M
The midline is the line y = M
so this is a line that goes through the middle of the graph.
On the given graph, we can see that the maximum value is at:
y = 5
The minimum is at:
y = 1
The midline is right between these two, at:
M = (5 + 1)/2 = 3
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HELP!! ILL MARK BRRAINLIST
Answer:
I think answer is D but it could be wrong not sure
Which statement best describes the effect on the graph of y=(x-9)2 if the equation is changed to y = (x + 9)²?
O The graph moves up 18 units.
The graph moves down 18 units.
O The graph moves left 18 units.
O The graph moves right 18 units.
Mark this and return
Save and Exit
Next
Submit
The statement that best describes the effect on the graph of y=(x-9)² if the equation is changed to y = (x + 9)² is:O C. The graph moves left 18 units.
The effect on the graph of y?The graph shifts horizontally when the equation is modified from y = (x - 9)2 to y = (x + 9)2. The graph's points' x-coordinates are impacted by the inclusion of 9 inside the brackets.
The graph is moved 9 units to the left by adding 9 to the x-coordinate. As a result, the phrase "The graph moves left 18 units" is the most correct way to describe the effect on the graph.
Therefore the correct option is C.
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give an example of a real world word problem for a two step inequality
This example demonstrates a two-step inequality where we first express the savings equation and then solve for the variable 'w' to determine the number of weeks needed to reach the savings goal.
Understanding InequalityLiam is saving money to buy a new video game console. He has already saved $50 and is saving $10 per week from his allowance. He wants to determine how many weeks it will take for his savings to reach at least $150.
Let:
number of weeks Liam saves = w
total amount of money he saves = S
Step 1: Express the first step of the problem as an inequality.
Liam saves $10 per week, so the amount of money he saves after w-weeks is 10w. We can write the first step of the inequality as:
10w + 50 ≥ 150
Step 2: Solve the inequality.
To isolate 'w', we can subtract 50 from both sides of the inequality:
10w ≥ 150 - 50
10w ≥ 100
Finally, divide both sides of the inequality by 10 to solve for 'w':
w ≥ 10
Therefore, it will take Liam at least 10 weeks to save enough money to reach $150 for the video game console.
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Determine the area of the shades region
The area of the shaded region is 61.76 square feet.
The given figure has a rectangle and circle.
Let us find the area of both rectangle and circles.
The length of rectangle is 14 ft and width is 8 ft.
Area = length × width
=14×8
=112 square feet.
The diameter of the circle is 8 feet because diameter is equal to width of rectangle.
Radius =diameter/2
= 4 ft.
Area of circle =πr²
=3.14×4²
=3.14×16
=50.24
To find the area of shaded region subtract area of circle from area of rectangle.
Shaded area = 112-50.24
=61.76 square feet.
Hence, the area of the shaded region is 61.76 square feet.
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Can someone please help me answer this question?
The value of p is -3.
To rewrite the equation 2x² + 12x = -13 in the form 2(x - p)^2 + q = 0, we need to complete the square. Let's go through the steps:
2x² + 12x = -13
First, let's move the constant term to the right side:
2x² + 12x + 13 = 0
Next, divide the equation by the leading coefficient (2) to simplify:
x² + 6x + 6.5 = 0
To complete the square, we take half of the coefficient of x (6) and square it to get 9.
Then, we add and subtract 9 to the equation:
x² + 6x + 9 - 9 + 6.5 = 0
(x + 3)² - 3² + 6.5 = 0
(x + 3)² - 9 + 6.5 = 0
(x + 3)² - 2.5 = 0
Comparing this equation with 2(x - p)² + q = 0, we can see that p = -3 and q = -2.5.
Therefore, the value of p is -3.
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Rotate triangle PqR with P(-1,-3), Q(-5,-7) and R(-7,-3)270 counterclockwise about the origin. what are the coordinates of P'
The coordinates of P' after rotating triangle PQR counterclockwise by 270 degrees about the origin are P'(-3, 1).
To rotate a point counterclockwise about the origin, you can use the following rotation formula:
x' = x * cos(theta) - y * sin(theta)
y' = x * sin(theta) + y * cos(theta)
In this case, we want to rotate the triangle PQR 270 degrees counterclockwise. We can calculate the coordinates of each point after the rotation.
For point P(-1, -3):
x' = (-1) * cos(270°) - (-3) * sin(270°)
y' = (-1) * sin(270°) + (-3) * cos(270°)
We can simplify these equations using the values of cosine and sine for 270 degrees:
x' = (-1) * 0 - (-3) * (-1)
y' = (-1) * (-1) + (-3) * 0
Simplifying further:
x' = 0 - 3
y' = 1 + 0
x' = -3
y' = 1
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What is the measure of MN?
The measure of arc MN include the following: B. 45°.
What is the theorem of intersecting secants?In Mathematics and Geometry, the theorem of intersecting secants states that when two (2) lines intersect outside a circle, the measure of the angle formed by these lines is equal to one-half (½) of the difference of the two (2) arcs it intercepts.
By applying the theorem of intersecting secants, the value of arc MN can be calculated as follows:
37= 1/2(arc MN + 29)
37(2) = arc MN + 29
74 = arc MN + 29
arc MN = 74 - 29
arc MN = 45 degrees.
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Use four unit multipliers to convert 630 square yards to square inches.
We transformed 630 square yards to square inches, resulting in a value of 816,480 square inches.
To convert 630 square yards to square inches, we can utilize the following unit multipliers:
1 yard = 3 feet (since there are 3 feet in a yard)
1 foot = 12 inches (since there are 12 inches in a foot)
1 square yard = 1 yard × 1 yard = 3 feet × 3 feet = 9 square feet
1 square foot = 12 inches × 12 inches = 144 square inches
Now, we can set up the conversion using the unit multipliers:
630 square yards × (9 square feet / 1 square yard) × (144 square inches / 1 square foot) = 630 × 9 × 144 square inches
Simplifying the calculation:
630 × 9 × 144 square inches = 816,480 square inches
Therefore, 630 square yards is equal to 816,480 square inches.
By using the four unit multipliers and converting yards to feet and then to inches, we successfully transformed 630 square yards to square inches, resulting in a final value of 816,480 square inches.
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URGENT!! ILL GIVE BRAINLIEST! AND 100 POINTS
The total number of cars sold by two dealerships is 294.
Let x be the number of cars and y be the number of trucks.
As, there are total 164 cars then
x+ y= 164 ........(1)
The second dealership sells twice as many cars and half as many trucks as the first dealership and sold a total of 229 cars and trucks.
so, 2x+ y/2 = 229.....(2)
Solving the equation as
y= 164- x
and, 2x + (164-x)/2 = 229
4x + 164 -x = 458
3x= 458 - 164
3x = 294
x= 294/3
x = 98
Thus, the total number of cars sold by two dealerships is 294.
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After conducting a survey of all his classmates, Ryan discovers that
the amount of money everyone spends buying clothes each month
has a mean of $46. What does the mean say about the amount his
classmates spend on clothes? (5 points)
If the amount spent on clothes per month by all his classmates is leveled, that
amount would be $46.
The majority of his classmates spend $46 per month buying clothes.
Half of his classmates spend more than $46 per month buying clothes.
Half of his classmates spend exactly $46 per month buying clothes.
The meaning of the amount his classmates spend on clothes is,
If the amount spent on clothes per month by all his classmates is leveled, that amount would be $46.
We have to given that,
The amount of money everyone spends buying snacks each month has a mean of $46.
Mean = Sum of observations / Total number of observation
Hence, It means that average amount of money spend by everyone is $46.
And, If the amount spent on snacks per month by all his classmates is leveled, that amount would be $46.
So, if some one paid more amount than $38, whereas some one paid less amount than $38.
It will be nullify by leveling the amount by all his classmate while calculating the mean.
So, Option 'D' is correct.
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A carnival game is designed so that approximately 10% of players will win a large prize. If there is evidence that the percentage differs significantly from this target, then adjustments will be made to the game. To investigate, a random sample of 100 players is selected from the large population of all players. Of these players, 19 win a large prize. The question of interest is whether the data provide convincing evidence that the true proportion of players who win this game differs from 0.10. The computer output gives the results of a z-test for one proportion.
Test and CI for One Proportion
Test of p = 0.1 vs p ≠ 0.1
Sample
1 X
19 N
100 Sample p
0.19 95% CI
(0.113, 0.267) Z-Value
3.00 P-value
0.0027
What decision should be made at the α = 0.05 level?
Because the P-value < α = 0.05, the correct decision is to reject H0.
Because the P-value < α = 0.05, the correct decision is to reject Ha.
Because the P-value < α = 0.05, the correct decision is to fail to reject H0.
Because the P-value < α = 0.05, the correct decision is to fail to reject Ha.
Answer:
Because the P-value < α = 0.05, the correct decision is to reject H0.
Step-by-step explanation:
When the p-value is less than our given significance level, it's outside the rejection region, so there is strong evidence that suggest the null hypothesis is not true and that the alternate hypothesis is favored instead.
