In 6 years Juan will have the double of Carlos age.
When Juan will have double of Carlos's age?The ages of each one are:
Carlos = 18 years old.
Juan = 42 years old.
In x years, they will have:
C = 18 + x
J = 42 + x
Carlos will have the double of Juan's age when:
J = 2*C
Replacing the equations we will get the linear equation:
42 + x = 2*(18 + x)
Solving for x we will get:
42 +x = 36 + 2x
Solving for x:
42 - 36 = 2x - x
6 = x
So Juan will have the double of Carlos age in 6 years.
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Write equivalent fractions for 2 2/3 and 2 1/4 using a common denominator please hurry
The equivalent fractions for the mixed numbers, with the same denominator, are given as follows:
32/12 and 27/12.
How to obtain the equivalent fractions?The mixed numbers in the context of this problem are given as follows:
2 and 2/3.2 and 1/4.The fractions that represent each number are given as follows:
2 + 2/3 = 6/3 + 2/3 = 8/3.2 + 1/4 = 8/4 + 1/4 = 9/4.The least common factor of 3 and 4 is given as follows:
3 x 4 = 12.
Hence the equivalent fractions are given as follows:
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33 + 78 + 23 + 21 + 98 + 32 = ???
Answer:
The sum of 33, 78, 23, 21, 98, and 32 is 325.
subtract 8.263 from 13.48.
Answer:
13.48 - 8.263 = 5.217
Answer:5.217
Step-by-step explanation: caculate it
Given the geometric sequence where a1 = −9 and the common ratio is 5, what is the domain for n?
The domain for n in the given Geometric sequence is the set of positive integers: {1, 2, 3, 4, 5, ...}.
In a geometric sequence, each term is obtained by multiplying the previous term by a constant value called the common ratio (r).
In the given geometric sequence, the first term (a1) is -9 and the common ratio (r) is 5. Therefore, the sequence can be written as:
-9, -9 * 5, -9 * 5^2, -9 * 5^3, ...
To determine the domain for n, we need to determine the values of n for which the sequence is defined. In a geometric sequence, the term number n represents the position of a term in the sequence.
In this case, the first term corresponds to n = 1, the second term corresponds to n = 2, and so on. The domain for n consists of all the positive integers starting from 1, as the sequence extends indefinitely.
Therefore, the domain for n in the given geometric sequence is the set of positive integers: {1, 2, 3, 4, 5, ...}.
the domain does not include zero or negative values, as these positions in the sequence do not exist. The sequence only starts from the first term (n = 1) and continues indefinitely in the positive integer domain.
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"Determine the length of the line segment shown."
The length of the segment shown in the graph is 10 units
The endpoints on the line segment are : (2, - 1) and (-4,7)
Length of line segmentThe Length of a line segment can obtained using the relation :
Length = √(x2 - x1)² + (y2 - y1)²
Here,
x2 = - 4, x1 = 2, y2 = 7, y1 = - 1
Length of segment = √((-4) - 2)² + (7 - (-1))²
Length of segment = √(-6)² + (8)²
Length of segment = √36 + 64
Length of segment = √100 = 10 units
Therefore, the length of the segment on the graph shown is 10 units.
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k
9. The table shows the results from a study in which some patients were treated with a new
medical drug for sleeping disorders and others received a common sleeping pill. Use a 0.05
significance level to find the critical value needed to test for independence between the type of
sleeping pill and the presence of any adverse health condition.
Adverse health
condition reported
No adverse health
condition reported
00.004
03.841
00.751
0.100.
New Sleeping Pill Common Sleeping Pill
135
132
145
122
(1 point)
The critical value of the chi-squared statistic with a significance level of 0.05 is 3.84. Therefore, the correct answer is option B.
The null hypothesis in this case would be that there is independence between the type of sleeping pill and the presence of any adverse health condition.
The critical value needed to test for this is the chi-squared statistic with a significance level of 0.05.
To calculate the critical value, we first need to calculate the degrees of freedom, which is calculated by (rows-1) * (columns-1). In this case, the degrees of freedom is (2-1)*(2-1) = 1.
The critical value of the chi-squared statistic with a significance level of 0.05 is 3.84. This means that if the calculated chi-squared statistic is greater than 3.84, then we can reject the null hypothesis and claim that there is a significant relationship between the type of sleeping pill and the presence of any adverse health condition.
Therefore, the critical value of the chi-squared statistic with a significance level of 0.05 is 3.84. Therefore, the correct answer is option B.
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Question number 13 needs to answered
Final speed after slowing down by 15 miles per hour and reducing the speed by one third is 25 miles per hour.
Let's break down the steps to determine the final speed:
Step 1: Convert the speed from miles per minute to miles per hour.
Since you're driving one and a half miles per minute, we need to convert it to miles per hour. There are 60 minutes in an hour, so we multiply 1.5 by 60 to get 90 miles per hour.
Step 2: Slow down by 15 miles per hour.
Subtract 15 from the initial speed of 90 miles per hour, resulting in 75 miles per hour.
Step 3: Reduce the speed by one third.
To find one third of 75 miles per hour, we divide it by 3, which gives us 25 miles per hour.
Therefore, the final speed after slowing down by 15 miles per hour and reducing the speed by one third is 25 miles per hour.
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What is the value of x?
NO SPAM OR I WILL REPORT YOU AND BAN YOU IMMEDIATELY
Answer:
4.816
Step-by-step explanation:
5.66sin45 = 4.816
sin = opposite over hypotenuse
Need help solving this problem try to exclude steps if can
The transformed vertices are;
A'' => (-7, -1)
B'' => (-7, 4)
C''=> (-9,4)
D''=> (-9, -1)
Here, we have,
given that,
we have to translate by (x,y) => (x-5, y+4)
so, the rectangle will be transformed as;
the transformed vertices are;
A' => ( 4-5, 3+4) => (-1, 7)
B' => (9-5, 3+4) => (4,7)
C'=>(9 -5, 5 +4 ) => (4, 9)
D'=> (4 -5, 5+4 ) => (-1, 9)
now, For clockwise rotation of a triangle by 90 degree, then x coordinate is similar to the y coordinate of original point and y coordinate is negative times of x coordinate of original point.
So (x,y) changes to (-y,x).
the transformed vertices are;
A'' => ( 4-5, 3+4) => (-1, 7) => (-7, -1)
B'' => (9-5, 3+4) => (4,7) => (-7, 4)
C''=>(9 -5, 5 +4 ) => (4, 9) => (-9,4)
D''=> (4 -5, 5+4 ) => (-1, 9)=> (-9, -1)
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Which is the equation for the function shown? A parabola that opens upward graphed on a coordinate plane. The vertex is negative 1, negative 2, and the parabola passes through the points negative 3, 2, and 1, 2. A. f(x) = (x − 1)2 + 2 B. f(x) = (x + 1)2 − 2 C. f(x) = (x − 2)2 + 1 D. f(x) = (x + 2)2 − 1
The equation for the function shown is f(x) = (x + 1)² - 2. Option B
How to determine the equationFrom the information given, we have the deductions;
The vertex of the parabola is given as (-1, -2)
Using the form;
f(x) = a(x - h)^2 + k
Such that (h, k) represents the vertex coordinates.
Substitute the vertex coordinates into formula, we get;
f(x) = a(x - (-1))² + (-2)
= a(x + 1)² - 2
Now, substitute the value for a, we get;
2 = a(-3 + 1)² - 2
find the square and collect like terms
4 = a(4)
a = 1
Put value back into the equation
f(x) = 1(x + 1)² - 2
Multiply the value, we get;
f(x) = (x + 1)² - 2
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Please help. Any unnecessary answers will be reported. Show your work.
King Arthur's Sword has a blade that is made of a regular hexagon and a regular pentagon. What is the amplitude of the tip of King Arthur's Sword?
The total amplitude of the tip of King Arthur's sword is s + [tex]\sqrt{3}[/tex]t/2.
Given that the length of the line segment connecting the centre of the regular hexagon to one of its vertices as the length of the line segment connecting centre of the regular pentagon to one of its vertices.
To find the amplitude by adding these two lengths.
For the regular hexagon, the distance from the centre to a vertex is equal to the radius of the circumscribed circle. The radius of the circumscribed circle is equal to length of a side.
Therefore, the amplitude of the hexagon is s.
For a regular pentagon, divide it into three triangles. One of these triangles is an isosceles triangle where the base is the side of the pentagon and the other two sides are radii of the circumscribed circle.
The amplitude of pentagon is the height of the isosceles triangle.
In an isosceles triangle, the height(h) is calculated from formula
h = [tex]\sqrt{3}[/tex]t/2.
Therefore, the amplitude of the pentagon is [tex]\sqrt{3}[/tex]t/2.
Hence, the total amplitude of the tip of King Arthur's sword is s + [tex]\sqrt{3}[/tex]t/2.
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50 Points! Multiple choice algebra question. Photo attached. Thank you!
Answer:
B. 3188.5 cubic inches.
Step-by-step explanation:
The volume of a cone is calculated using the following formula:
Volume = (1/3) * π * r² * h
Where:
π is the mathematical constant pi, approximately equal to 3.14.r is the radius of the base of the cone.h is the height of the cone.In this problem, we are given that r = 17 inches and S.h = 20 inches.
First we need to find height h.
py using Pythagorous theorem,we get
c²=a²+b²
here c= slight height and a is radius
20²=17²+b²
20²-17²=b²
111=b²
b=√(111)
Plugging these values into the formula, we get:
Volume = ⅓*π* 17² *√(111) = 3188.5 cubic inches
Therefore, the volume of the cone is 3188.5 cubic inches.
Seven numbers out of a set of nine numbers are 16, 17, 19, 19, 21, 21, and 25. If the mode of the eight numbers is 19 and the mean is 20, what are the other two numbers?
Show your work
To find the other two numbers in the set, we need to determine the missing numbers that satisfy the given conditions.
The mode of a set of numbers is the value(s) that appear(s) most frequently. In this case, the mode is given as 19, which means that 19 appears more times than any other number in the set.
The mean of a set of numbers is calculated by summing all the numbers and dividing by the total count. In this case, the mean is given as 20.
Given that the seven numbers provided are 16, 17, 19, 19, 21, 21, and 25, we can calculate the sum of these numbers:
16 + 17 + 19 + 19 + 21 + 21 + 25 = 138
To find the sum of all nine numbers in the set, we can use the mean formula:
Mean = (Sum of all numbers) / (Total count)
20 = (138 + x + y) / 9
Simplifying the equation, we have:
180 = 138 + x + y
x + y = 42
Now, since the mode is 19, we know that either x or y (or both) must be 19. Since the mode appears twice, we can assign 19 to both x and y:
x = 19
y = 19
Therefore, the other two numbers in the set are both 19.
how much time will it take to get to New Orleans by boat from Houston, Texas
Tom's estimated travel time is approximately 13.6 hours.
Based on the given scenario, Tom is traveling a distance of approximately 340 nautical miles from Houston to New Orleans by boat. He will be using a medium-sized recreational boat with an average speed of 25 miles per hour.
To estimate the time it will take for his journey, we can use the formula:
Time = Distance / Speed
Substituting the values, we have:
Time = 340 miles / 25 miles per hour
Calculating the division, we find that Tom's estimated travel time is approximately 13.6 hours.
However, it is important to note that this estimate assumes a continuous journey without considering other factors that may affect the travel time. Various elements can impact the actual duration, such as weather conditions, water currents, navigational challenges, refueling stops, and any necessary rest breaks.
Additionally, it is essential for Tom to adhere to all boating regulations and safety guidelines to ensure a smooth and secure voyage.
To obtain a more accurate estimate, Tom should consult local boating authorities, marinas, or experienced sailors familiar with the route.
They can provide valuable insights into the specific conditions and offer guidance on potential challenges that may affect the travel time. Planning for additional buffer time is also recommended to account for unforeseen circumstances and to prioritize safety during the journey.
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The complete question may be like:
Tom plans to travel by boat from Houston, Texas, to New Orleans, Louisiana. He wants to estimate the time it will take for his journey. The distance between the two cities by water is approximately 340 nautical miles. Tom will be traveling on a medium-sized recreational boat that has an average speed of 25 miles per hour. Considering normal weather conditions and assuming a continuous journey, how long will it take Tom to reach New Orleans?
Please provide an answer based on this scenario, taking into account the distance, average speed, and any other relevant factors.
In the figure below, S is the center of the circle. Suppose that JK = 16, MP= 8, LP = 2x + 4, and PS= 3.5. Find the
following.
The measure for NS is 3.5 cm and the value of x is 2.
We have,
JK = 16, MP= 8, LP = 2x + 4, and PS= 3.5.
Since PS is perpendicular to ML then
MP = LP
So, 8 = 2x+ 4
2x = 8-4
2x= 4
x= 4/2
x= 2
Now, ML = MP + PL = 16
and, JK = ML= 16
Then, NS = PS
NS = PS = 3.5 cm
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Find the area of each shape
The area of a triangle is 24 square feet and the area of a trapezium is 50 square feet.
From the given figure, the dimensions of trapezium are parallel sides a=7 ft, b= 13 ft and height = 5 ft.
Here, area of trapezium = 1/2 (Sum of parallel sides)×Height
= 1/2 ×(7+13)×5
= 1/2 ×20×5
= 50 square feet
Dimensions of triangle are base = 8 ft and height = 6 ft
Area of a triangle = 1/2 ×8×6
= 24 square feet
Therefore, the area of a triangle is 24 square feet and the area of a trapezium is 50 square feet.
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50 Points! Multiple choice geometry question. Photo attached. Thank you!
The equation of the parabola with the given focus (2, 7) and directrix y = -1 is [tex](x - 2)^2 = 12(y - 3)^2[/tex].Option C.
To find the equation of the parabola with a focus and directrix, we can use the standard form of the equation of a parabola:
For a vertical parabola:
[tex](x - h)^2 = 4p(y - k),[/tex]
where (h, k) is the vertex, and p is the distance from the vertex to the focus and directrix.
In this case, the focus is given as (2, 7), which means the vertex is also (2, 7) since the focus and vertex lie on the axis of symmetry. Additionally, the directrix is given as y = -1, which means the directrix is a horizontal line.
First, let's determine the distance from the vertex to the focus and directrix, which is the value of p. The distance is the absolute difference between the y-coordinate of the focus (7) and the y-coordinate of the directrix (-1):
p = |7 - (-1)| = 8.
Now we can substitute the values of the vertex (h, k) = (2, 7) and p = 8 into the standard form equation:
[tex](x - 2)^2 = 4(8)(y - 7).[/tex]
Simplifying further:
[tex](x - 2)^2 = 32(y - 7).[/tex]
Expanding the equation:
[tex]x^2 - 4x + 4 = 32y - 224.[/tex]
Rearranging the terms:
[tex]x^2 - 4x - 32y + 228 = 0.[/tex]
Therefore, the equation of the parabola with the given focus (2, 7) and directrix y = -1 is [tex](x - 2)^2 = 12(y - 3)^2.[/tex] SO Option C is correct.
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May I please get a little help with this question? Thank you so much.
The y-intercept of the function is (0, c)
The coefficients b determine the horizontal shift of the parabola compared to the parent function
If a is negative, the parabola opens downward
The y-intercept of the function is (0, c).
This means that when x = 0, the y-value is equal to c.
The constant term c represents the y-coordinate of the point where the parabola intersects the y-axis.
The coefficient b determines the horizontal shift of the parabola compared to the parent function.
The value of b affects the position of the vertex and determines if the parabola is shifted to the left or right.
A positive value of b shifts the parabola to the left, while a negative value of b shifts it to the right.
If a is negative, the parabola opens downward.
The coefficient a determines the shape of the parabola.
If a is positive, the parabola opens upward, and if a is negative, the parabola opens downward. The sign of a determines the direction in which the parabola faces.
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I need help solving these problems please.
Answer: i dont know what this is but i do believe its the second one
Step-by-step explanation:
100 Points! Geometry question. Photo attached. Find the area of the figure. Round to the nearest tenth if necessary. Please show as much work as possible. Thank you!
Answer:
150 m²
Step-by-step explanation:
You want the total area of a figure consisting of a 12 m wide rectangle 5 m high with a triangle above that bringing the total height to 20 m.
Rectangle areaThe area of the rectangle is the product of its length and width:
A = LW
A = (12 m)(5 m) = 60 m²
Triangle areaThe area of the triangle is half the product of its base and height.
A = 1/2bh
A = 12/(12 m)(20 -5 m) = 90 m²
Total areaThe area of the whole figure is the sum of the areas of its parts:
total area = rectangle area + triangle area
total area = 60 m² +90 m² = 150 m²
The area of the figure is 150 m².
__
Additional comment
Since you know a triangle's area is equivalent to the area of a rectangle that has half the height, the 15 m high triangle can be considered as a rectangle 7.5 m high. Adding that to the 5 m area of the rectangle already there gives the equivalent area as that of a rectangle 12 m wide and 5+7.5 = 12.5 m high: (12 m)(12.5 m) = 150 m².
<95141404393>
50 Points! Multiple choice geometry question. Photo attached. Thank you!
The total area of the quadrilateral DEFG is determined as 154 cm² .
option A.
What is the total area of the quadrilateral?The total area of the quadrilateral DEFG is calculated by applying the following method.
Consider triangle GDE in the quadrilateral;
base of the triangle = 16 cm
height of the triangle = 8 cm
Area of the triangle GDE = ¹/₂ x base x height
Area of the triangle GDE = ¹/₂ x 16 cm x 8 cm
Area of the triangle GDE = 64 cm²
Consider triangle GEF in the quadrilateral;
base of the triangle = 18 cm
height of the triangle = 10 cm
Area of the triangle GEF = ¹/₂ x base x height
Area of the triangle GEF = ¹/₂ x 18 cm x 10 cm
Area of the triangle GEF = 90 cm²
The total area of the quadrilateral DEFG is calculated as;
Area = 64 cm² + 90 cm²
Area = 154 cm²
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NEED HELP ASAP WILL GIVE BRAINLIEST HELP!
Answer:
The correct answer is 2.
Triglycerides are a type of fat in the bloodstream. The mean triglyceride level in the United States is 134 milligrams per deciliter. Assume the triglyceride levels of the population of the United States are normally distributed, with a standard deviation of 35 milligrams per deciliter. You randomly select a person from the United States. What is the probability that the person's triglyceride level is less than 80?
The probability that a aimlessly named person's triglyceride position is lower than 80 milligrams per deciliter is roughly0.0618 or6.18.
To calculate the probability that a aimlessly named person's triglyceride position is lower than 80 milligrams per deciliter, we can use the conception of standard normal distribution.
First, we need to regularize the value of 80 using the z- score formula z = ( x- μ)/ σ Where x = 80( the value we want to calculate the probability for) μ = 134( mean triglyceride position) σ = 35( standard divagation) Plugging in the values, we get z = ( 80- 134)/ 35 z = -54/ 35 z ≈-1.543
Next, we need to find the corresponding area under the standard normal distribution wind for a z- score of-1.543. We can use a standard normal distribution table or a calculator to find this area.
Looking up the z- score in the table or using a calculator, we find that the area to the left wing of z = -1.543 is roughly0.0618.
thus, the probability that a aimlessly named person's triglyceride position is lower than 80 milligrams per deciliter is roughly0.0618 or6.18.
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the function g(x) is a transformation of the cube root parent function, f(x) = exponent 3 square root x, what function is g(x)?
The function g(x) in the context of this problem is given as follows:
A. [tex]g(x) = \sqrt[3]{x + 4} + 3[/tex]
What is a translation?A translation happens when either a figure or a function is moved horizontally or vertically on the coordinate plane.
The four translation rules for functions are defined as follows:
Translation left a units: f(x + a).Translation right a units: f(x - a).Translation up a units: f(x) + a.Translation down a units: f(x) - a.The parent function in this problem is given as follows:
[tex]f(x) = \sqrt[3]{x}[/tex]
The translated function was moved 4 units left and 3 units up, hence the function is defined as follows:
[tex]g(x) = \sqrt[3]{x + 4} + 3[/tex]
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What is the quotient of 5x³+2x2-6x-5 divided by x+2?
O 5x²-8x+10+ 25/(x+2)
O 5x²-8x+10-25/(x+2)
O 5x2+12x+18+ 31/(x+2)
O 5x²+12x+18 - 31/(x+2)
PLS HELP I BEG
The correct option is: 5x² - 8x + 10 - 25/(x + 2)
Given that we need to determine, what is the quotient of 5x³+2x2-6x-5 divided by x+2,
Long division can be used to determine the polynomial 5x³+2x2-6x-5 divided by x + 2.
Here is how to accomplish it:
5x² - 8x + 10
____________________
x + 2 | 5x³ + 2x² - 6x - 5
- (5x³ + 10x²)
_________________
-8x² - 6x
- (-8x² - 16x)
_______________
10x - 5
- (10x + 20)
___________
-25
The quotient is 5x² - 8x + 10, and the remainder is -25/(x + 2).
Therefore, the correct option is: 5x² - 8x + 10 - 25/(x + 2)
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pls answer this question, I don't understand it.
The two numbers could be 0.43× 10⁻⁵ and, 0.06× 10⁻³.
Here, we have,
given that,
the product of two number in scientific notation is: 0.0258 × 10⁻⁸
now, let the two numbers be:
0.43× 10⁻⁵ and, 0.06× 10⁻³
we get,
0.43× 10⁻⁵ × 0.06× 10⁻³
= 0.43 × 0.06× 10⁻⁵ × 10⁻³
= 0.43 × 0.06 × 10⁻⁵⁻³
=0.43 × 0.06× 10⁻⁸
=0.0258 × 10⁻⁸
Hence, The two numbers could be 0.43× 10⁻⁵ and, 0.06× 10⁻³.
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12. Jaylee tiled his bathroom with 1.5 ft. by 1.5 ft. square tiles. Figure ABCD shows the 24 tiles he used.
A
B
1.5 ft
D15ft
What is the area of figure ABCD?
C
The area of the whole figure which is made up of 24 tiles would be = 54ft²
How to determine the total area of the tile used by Jaylee?To determine the total area of tiles used by Jaylee, the area for a single tile with a square shape should first be calculated with the formula given below as follows;
Area of a square = a²
a= side length = 1.5ft
area = 1.5×1.5
= 2.25ft²
The total number of tiles he used = 24 tiles.
Therefore, the total area of the rules he used = 2.25×24 = 54ft²
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helpppppppppppppppppoooo
The probability that a given student said math was their favorite subject was 3.44
The mathematical notion of probability measures the possibility of an event happening. A number between 0 and 1 is used to indicate it, with 0 denoting impossibility (the event won't happen) and 1 denoting certainty (the event will unquestionably happen). In probability theory, the probability of an event is determined based on a set of assumptions or information available. It is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
Here, the total outcome is 299 and favorable outcome is 87.
Hence, the probability is 299/87 = 3.44
Therefore, probability that a given student said math was their favorite subject was 3.44.
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Find probability between 240 and 300 apples.
Answer:
47.5% (rounds to 48%)
Step-by-step explanation:
You want the probability that a tree has between 240 and 300 apples, given the distribution of numbers of apples is normal with mean 300 and standard deviation 30.
CenterThe given diagram shows the center 95% of numbers of apples lies between 240 and 360. The number between 240 and 300 is half that symmetical distribution, so is ...
95%/2 = 47.5%
The probability a tree will have between 240 and 300 apples is about 47.5%.
__
Additional comment
The figure "95%" is an approximation. A closer value is 95.45%. Hence, a closer value to the probability is 47.7%.
No rounding requirement is shown. To the nearest whole percentage point, the probability would be 48%.
<95141404393>
A set of data is represented in the stem plot below.
Stem plot with stems of 3, 4, 5, 6, 7, 8, 9. Leaf for stem of 3 is 5. Leaves for stem of 4 are 4, 5. Leaves for stem of 5 are 3, 6. Leaves for stem of 6 are 2, 5. Leaves for stem of 7 are 5, 5, 6. Leaves for stem of 8 are 2, 5. Leaf for stem of 9 is 2.
Key: 3 | 5 = 35
Part A: Find the mean of the data. Show each step of work. (2 points)
Part B: Find the median of the data. Explain how you determined the median. (2 points)
Part C: Find the mode of the data. Explain how you determined the mode. (2 points)
Part D: Compare your values for mean, median, and mode from parts A, B, and C. Which value would best represent the data, and why? Explain using complete sentences. (4 points)
In this dataset, the mean is approximately 65.77, the median is 65, and the mode is 5 and 75.
Part A: Finding the mean of the data:
To find the mean, we need to calculate the average of all the data points.
Step 1: Identify the stems and their corresponding leaves:
3 | 5
4 | 4, 5
5 | 3, 6
6 | 2, 5
7 | 5, 5, 6
8 | 2, 5
9 | 2
Step 2: Assign numerical values to each stem-leaf combination:
3 | 5 = 35
4 | 4 = 44, 5 = 45
5 | 3 = 53, 6 = 56
6 | 2 = 62, 5 = 65
7 | 5 = 75, 5 = 75, 6 = 76
8 | 2 = 82, 5 = 85
9 | 2 = 92
Step 3: Calculate the sum of all the numerical values:
35 + 44 + 45 + 53 + 56 + 62 + 65 + 75 + 75 + 76 + 82 + 85 + 92 = 855
Step 4: Determine the count of all the data points:
The count is the total number of data points, which can be determined by adding up the frequencies of each stem-leaf combination:
1 (stem 3) + 2 (stem 4) + 2 (stem 5) + 2 (stem 6) + 3 (stem 7) + 2 (stem 8) + 1 (stem 9) = 13
Step 5: Calculate the mean by dividing the sum of all values by the count:
Mean = Sum of all values / Count = 855 / 13 = 65.77 (rounded to two decimal places)
The mean of the data is approximately 65.77.
Part B: Finding the median of the data:
To determine the median, we need to arrange the data in ascending order and find the middle value.
Arranging the data in ascending order: 35, 44, 45, 53, 56, 62, 65, 75, 75, 76, 82, 85, 92
There are 13 data points, the median will be the value in the middle. In this case, the middle value is the 7th value, which is 65.
The median of the data is 65.
Part C: Finding the mode of the data:
The mode represents the value(s) that occur with the highest frequency.
From the stem-leaf plot, we can see that the leaves with the highest frequency are 5 and 75. Both of these frequencies occur twice.
The mode of the data is 5 and 75.
Part D: Comparing the mean, median, and mode:
In this dataset, the mean is approximately 65.77, the median is 65, and the mode is 5 and 75.
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