Option A correctly states that the ranges of East Valley HS and Northview HS are the same.
What is distributions?A distribution refers to the pattern of the spread of values or observations of a variable in a dataset. It describes how frequently different values occur in the dataset and the relative frequency of each value.
According to question:To compare the spreads of the distributions, we need to look at the range of each distribution. In this case, the distributions are given in grouped frequency tables that show the frequencies of class sizes for two high schools, East Valley HS and Northview HS.
Looking at the two tables, we can see that the class sizes for both schools range from 14 to 32.
Therefore, the range of each distribution is the same (32 - 14 = 18). This means that the distributions have the same spread, and there is no difference between the ranges of the two distributions.
Option A correctly states that the ranges of East Valley HS and Northview HS are the same, which is the correct answer. Option B is incorrect because it suggests that the range of Northview HS is greater than the range of East Valley HS, which is not true. Option C is also incorrect because it suggests that the range of East Valley HS is greater than the range of Northview HS, which is also not true. Option D is irrelevant to the comparison of spreads, because it compares the modes of the two distributions rather than their ranges.To know more about distributions visit:
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Does anyone understand this?
Answer:
\( x = - 1\)
\(x + 1 = 0\)
\( {(x + 1)}^{2} = {x}^{2} + 2x + 1 = 0\)
So m = 2 and n = 1, meaning m + n = 3.
Enter the equation of a circle that is congruent to circle C and is centered at point P
The equation of a circle that is congruent to circle C and is centered at point P is (x - 5)² + (y - 1)² = 5².
What is the equation of a circle?In Geometry, the standard form of the equation of a circle is modeled by this mathematical equation;
(x - h)² + (y - k)² = r²
Where:
h and k represent the coordinates at the center of a circle.r represent the radius of a circle.Based on the information provided, we have the following parameters for the equation of this circle:
Center (h, k) of P = (1, 5)Radius (r) of P = 5 units.By substituting the given parameters, we have:
(x - h)² + (y - k)² = r²
(x - 5)² + (y - 1)² = 5²
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To compare freshmen’s knowledge of mathematics in two departments of a university, a certain professor in Mathematics got a sample of Education and Nursing students and gave a special examination. A sample of 25 Education students has a mean score of 88.50 with standard deviation of 7.5. A sample of 29 Nursing students have a mean score of 90.25 with a standard deviation of 8.2. Is there a significant difference between the two sample means? Use α = .01 level of significance.
There is no significant difference between the mean scores of Education and Nursing students in mathematics.
Is there a significant difference between the mean scores?Null hypothesis (H₀): There is no significant difference between the mean scores of Education and Nursing students in mathematics.
Alternative hypothesis (H₁): There is a significant difference between the mean scores of Education and Nursing students in mathematics.
We will use significance level (α) of 0.01.
Given:
Sample mean for Education students (x₁) = 88.50
Sample mean for Nursing students (x₂) = 90.25
Standard deviation for the Education student sample (s₁) = 7.5
Standard deviation for the Nursing student sample (s₂) = 8.2
Sample size for Education students (n₁) = 25
Sample size for Nursing students (n₂) = 29
The t-test statistic for two independent samples is:
t = (x1₁ - x2) / sqrt((s₁² / n₁) + (s₂² / n₂))
t = (88.50 - 90.25) / sqrt((7.5² / 25) + (8.2² / 29))
t ≈ -0.8187
In this case, df = 24.
The critical value for α = 0.01 and df = 24 is approximately ±2.797.
Since |-0.8187| < 2.797, the absolute value of the t-test statistic is smaller than the critical value.
Therefore, we fail to reject the null hypothesis.
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FREE BRAINLYIST VERY URGENT
Answer:
2
Step-by-step explanation:
4²=16
16 × 3 = 48
2²=4
4 × 6 = 24
48 ÷ 24=2
(4² * 3) / (2² * 6)
Answer:
the awnser is 2
Step-by-step explanation:
4 times 6= 24
16 times 3=48
48 divided by 24 =2
. Mr. X deposited Rs. 50000 in a bank at 4% per annum for 2 years compounded annually
i) What is the amount after 2 years?
ii) Calculate the interest
give steps also for more points
ANSWER ASAP
Answer:
i) To calculate the amount after 2 years compounded annually, we can use the formula:
A = P(1 + r/n)^(nt)
where A is the amount, P is the principal (initial deposit), r is the annual interest rate (as a decimal), n is the number of times the interest is compounded per year, and t is the number of years.
In this case, P = Rs. 50000, r = 0.04 (since the interest rate is given as 4%), n = 1 (since the interest is compounded annually), and t = 2. Plugging these values into the formula, we get:
A = 50000(1 + 0.04/1)^(1*2)
A = 50000(1.04)^2
A = Rs. 54,080
Therefore, the amount after 2 years is Rs. 54,080.
ii) To calculate the interest, we can subtract the principal from the amount:
Interest = Amount - Principal
Interest = Rs. 54,080 - Rs. 50000
Interest = Rs. 4,080
Therefore, the interest earned after 2 years is Rs. 4,080.
Step-by-step explanation:
HELP PLEASE <3
Find the missing sides
Answer:
\(b = 2\sqrt{2}\\\\a=4\)
Step-by-step explanation:
\(b = 2\sqrt{2}\\a = \sqrt{b^2+(2\sqrt{2})^2} = \sqrt{8+8}=\sqrt{16}=4\)
Someone please help me answer this!!
Answer:
\(b^{4}\)Step-by-step explanation:
b^10 / b^6 = b^10-6 = b^4
Hope that helps!
Find the equation of the line with the given properties. Express the equation in general form or slope-intercept form.
Perpendicular to the line 3x+y=7 contains points (3,-3)
keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above
\(3x+y=7\implies y=\stackrel{\stackrel{m}{\downarrow }}{-3} x+7\impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}\)
therefore
\(\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{-3\implies \cfrac{-3}{1}} ~\hfill \stackrel{reciprocal}{\cfrac{1}{-3}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{1}{-3}\implies \cfrac{1}{3}}}\)
so we're really looking for the equation of a line whose slope is 1/3 and passes through (3 , -3)
\((\stackrel{x_1}{3}~,~\stackrel{y_1}{-3})\qquad \qquad \stackrel{slope}{m}\implies \cfrac{1}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-3)}=\stackrel{m}{\cfrac{1}{3}}(x-\stackrel{x_1}{3}) \\\\\\ y+3=\cfrac{1}{3}x-1\implies y=\cfrac{1}{3}x-4\)
Can you help me with this equation?
The linear function that relates y to x is given as follows:
y = -0.5x + 57.
The slope indicates that the height decays 0.5 feet per minute. The y-intercept indicates that the descent starts at a cruising altitude of 57 feet.
How to define a linear function?
The slope-intercept equation for a linear function is presented as follows:
y = mx + b
The coefficients m and b represent the slope and the intercept, respectively, and are explained as follows:
m represents the slope of the function, which is by how much the dependent variable y increases or decreases when the independent variable x is added by one.b represents the y-intercept of the function, representing the numeric value of the function when the input variable x has a value of 0. On a graph, the intercept is given by the value of y at which the graph crosses or touches the y-axis.From the table, when x = 0, y = 57, hence the intercept b is given as follows:
b = 57.
When x increases by 10, y decays by 5, hence the slope m is given as follows:
m = -5/10
m = -0.5.
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There are two numbers that have a sum of 47. Three times the lesser
number is equal to 9 more than the greater number. What are the
numbers?
Answer:
The numbers are 14 and 33---------------
Let the numbers be s and l.
We are given that:
Sum of the two is 47 and 3 times the lesser number is equal to 9 more than the greater number.Set up equations:
s + l = 473s = l + 9Eliminate l:
l = 47 - s and l = 3s - 9Solve for s:
47 - s = 3s - 93s + s = 47 + 94s = 56s = 14Find l:
l = 47 - 14l = 33The graph below shows the line y=[x]. If the line y=|x|*2 were graphed on the same grid, hc would it compare to the line shown in the graph below.
The graph of the function y = 2|x| is a vertical stretch by a factor of 2 of the parent function y = |x|.
How to identify the transformation?The functions for this problem are defined as follows:
Parent function: y = |x|.Transformed function: y = 2|x|.When a function is multiplied by 2, we have that it is vertically stretched by a factor of 2.
Hence the graph of the function y = 2|x| is a vertical stretch by a factor of 2 of the parent function y = |x|.
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Mr Osei has a rectangular field measured 85m long and 25m wide. How long is the distance around the field?
Answer:
220m
Step-by-step explanation:
l=85m
b=25m
perimeter=2(l+b)
2(85+25)
2(110)
=220m
perimeter is 220m
Answer:
Distance around the field is 220mStep-by-step explanation:
The distance around the field means the perimeter of the field
Since the field is rectangular
Perimeter of a rectangle = 2l + 2w
where l is the length
w is the width
From the question
l = 85m
w = 25m
Perimeter = 2(85) + 2(25)
Perimeter = 170 + 50
The final answer is
Perimeter = 220m
Hope this helps you
1. In a concert hall, the number of seats in each row increases as you move farther from the stage. There are
the first row, 38 seats in the second row, and 45 seats in the third row.
a) If this pattern continues, determine what type of sequence this represents. Then write a function rule in simplified
form that can be used to find the number of seats in the nth row. Be sure to use the correct notation you have
learned this unit. Show ALL work.
b) Use the rule to determine which row has 290 seats. Show ALL work.
According to the situation described, we have that:
a) The arithmetic sequence that gives the number of seats in the nth row is given by:
\(a_n = 24 + 7n\)
b) The 38th row has 290 seats.
What is an arithmetic sequence?In an arithmetic sequence, the difference between consecutive terms is always the same, called common difference d.
The nth term of an arithmetic sequence is given by:
\(a_n = a_1 + (n - 1)d\)
Item a:
The first row has 31 seats, the second has 38, the third has 45 and so on, hence:
It is an arithmetic sequence.The common difference is d = 7.The first term is \(a_1 = 31\).Then, the rule is:
\(a_n = a_1 + (n - 1)d\)
\(a_n = 31 + 7(n - 1)\)
\(a_n = 24 + 7n\)
Item b:
This is the nth row, for which \(a_n = 290\), hence:
\(a_n = 24 + 7n\)
\(290 = 24 + 7n\)
\(7n = 266\)
\(n = \frac{266}{7}\)
\(n = 38\)
The 38th row has 290 seats.
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Gina has 32 items to ship and 11 shipping boxes. The large shipping boxes can hold 4 items each. The small shipping boxes can hold 2 items each. Gina has exactly enough boxes for her items. How many of each type of box does she have?
Answer:
Gina has 5 large shipping boxes and 6 small shipping boxes.
Step-by-step explanation:
32 items to ship and 11 shipping boxes.
Large=4 items
4 X 5 = 20
Small=2 items
2 X 6 = 12
20 + 12 = 32
The height of a pyramid is doubled, but its length and width are cut in half. What is true about the volume of the new pyramid?
The new pyramid has a volume that is One-fourth the volume of the original pyramid.
The new pyramid has a volume that is One-half the volume of the original pyramid.
The new pyramid has the same volume as the volume of the original pyramid.
The new pyramid has a volume that is 2 times the volume of the original pyramid.
Answer:
B.)The new pyramid has a volume that is One-half the volume of the original pyramid.
Step-by-step explanation:
got it right on test.
Answer:
B
Step-by-step explanation:
I got it correct
the current in the electronic circuit in the mobile phone was 0.12a the potential difference across the battery was 3.9V. calculate the resistance of the electronic circuit in the mobile phone
Answer:
Step-by-step explanation:
V = 3.9V
I = 0.12A
Ohm's Law, V = IR
Rearranging Ohm's Law, R = V/I
R = 3.9/0.12 = 32.5Ω
One cubic foot of a crushed mineral weighs 150 pounds. How many pounds of the crushed mineral can a container with the dimensions shown hold?
Therefore , the solution of the given problem of volume comes out to be 4500 pounds of the crushed mineral can fit inside the container.
What exactly does volume mean?The volume of a three-dimensional item, which is measured in cubic units, describes how much room it occupies. Litre and in3 are the symbols for cubic measurements. However, in order to determine an object's dimensions, you must be aware of its volume. It's common practise to translate an object's weight onto metric units like kilogrammes.
Here,
We must first determine the container's volume, then multiply it by the crushed mineral's weight per cubic foot.
The container's measurements in the image are as follows:
=> 5 feet in length
=> Size: 3 feet wide
=> Height is two feet.
The following formula determines the container's volume:
=> Volume = length* width*height
Inserting the values:
=> 5 feet * 3 feet * 2 feet = volume.
=> 30 cubic feet is the volume.
=> Volume of container x Weight per cubic foot = Weight of crushed mineral
=> Weight of crushed mineral = 30 cubic feet x 150 pounds/cubic foot
=> The crushed mineral weighs 4500 pounds.
Therefore, 4500 pounds of the crushed mineral can fit inside the container.
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Please help me!! I will try to give brainliest!!!
Answer:
If you round it the 30. If not round 29.7
Step-by-step explanation:
Branliest plz :)
Given that the expression "p dollars for every q items" describes a unit price, which statement must be true? p=1 p=9 q=1 pg= 1
Answer:
p = q
Step-by-step explanation:
Answer:
the answer is q=1
Step-by-step explanation:
I did the quiz
H(p)=p/5 + 15
What is the independent variable in this function
In the given function H(p) = p/5 + 15, the independent variable is "p" ,
The independent variable in this function is denoted by "p." The independent variable can also be referred to as the input variable, which means that it is the value that is inputted into the function to produce an output. In this specific function, "p" represents the price of a good or service.
It is important to distinguish between the independent and dependent variables in a function. The dependent variable is denoted by "H(p)" in this case, and it is the output of the function. The value of the dependent variable is determined by the independent variable. In this function, "H(p)" represents the total cost of the good or service, which is dependent on the price "p." p is the input variable representing the price of the good or service.
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Michael had $8 and wants to buy a combination of cupcakes and fudge to feed at least four siblings. Each cupcake cost $2 and each piece of fudge costs $1.
The system of inequalities that models this situation is given as follows:
x ≥ 0.y ≥ 0.x + y ≥ 4.2x + y ≤ 8.How to model the system of equations?The variables that are used to model the system of inequalities are given as follows:
Variable x: number of cupcakes.Variable y: number of fudges.Both amounts are countable amounts, meaning that they cannot assume negative values, hence:
x ≥ 0.y ≥ 0.He wants to buy a combination to feed at least four siblings, hence:
x + y ≥ 4.
He had $8, hence, considering the price of each product, we have that:
2x + y ≤ 8.
Missing iNformationThe problem asks for the system of inequalities which models the situation.
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7/15% of a quantity is a equal to what fraction of the quantity?
Answer:
\( \frac{7}{15\%} = \frac{7}{ \frac{15}{100} } \\ = \frac{7 \times 100}{15} \\ = 46 \frac{2}{3} \)
Step-by-step explanation:
\(\bold{\dfrac{7}{15\%} }\)
\(\bold{\dfrac{7}{\dfrac{15}{100}} }\)
\(\bold{\dfrac{7×100}{15} }\)
\(\bold{\dfrac{7×\cancel{100}}{\cancel{15}} }\)
\(\bold{\dfrac{7×20}{3} }\)
\(\bold{\dfrac{140}{3} }\)
\(\bold{46\dfrac{2}{3} }\)
Solve the equation 2/3x - 1/5x = x - 1
Answer:
To solve the equation:
2/3x - 1/5x = x - 1
First, we need to find a common denominator for 2/3 and 1/5, which is 15. So we can rewrite the equation as:
(10/15)x - (3/15)x = 15/15 x - 1
Simplifying the left side:
(7/15)x = 15/15 x - 1
Multiplying both sides by 15:
7x = 15x - 15
Subtracting 7x from both sides:
-8x = -15
Dividing both sides by -8:
x = 15/8 or 1.875
Therefore, the solution to the equation is x = 1.875.
Susan is running a 5k race. The graph of distance vs. time is shown.
What interval is she running the fastest?
The interval of the graph at which Susan is running fastest is from point A ( 0 , 0 ) to B ( 10 , 3 )
Given data ,
Susan is running a 5k race. The graph of distance vs. time is shown
So , the slope of the first line is m₁
And , the slope of the second line is m₂
where the points are A ( 0 , 0 ) , B ( 10 , 3 ) , C ( 20 , 4 )
Now , slope of AB is
m₁ = ( 3/10 ) = 0.3
And , m₁ = 0.3 kilometers per minute
And , slope of BC is
m₂ = ( 4 - 3 ) / ( 20 - 10 )
m₂ = 1/10
m₂ = 0.1 kilometers per minute
Therefore , the interval is fastest at second line from B ( 10 , 3 ) , C ( 20 , 4 )
Hence , Susan is running fastest is from point A ( 0 , 0 ) to B ( 10 , 3 )
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True or false please help me
Answer:
no
Step-by-step explanation:
18 is repeted in the y-axis
Answer:
false
Step-by-step explanation:
Complete this sequence of numbers such that the difference between any two adjacent numbers is the same : 3/k, _, _, 9/2k.
The completed sequence is: 3/k, 3/k, 3/k, 9/2k.To complete the sequence of numbers with a constant difference between adjacent numbers, we can calculate the common difference by subtracting the first term from the second term.
Let's denote the missing terms as A and B.
The given sequence is: 3/k, A, B, 9/2k.
The common difference can be found by subtracting 3/k from A or B. Therefore:
A - 3/k = B - A = 9/2k - B.
To simplify, we can equate the two expressions for the common difference:
A - 3/k = 9/2k - B.
Next, we can solve for A and B using this equation.
Adding 3/k to both sides gives:
A = 3/k + 9/2k - B.
Now, we can substitute the value of A into the equation:
3/k + 9/2k - B - 3/k = 9/2k - B.
Simplifying further, we have:
9/2k - 3/k = 9/2k - B.
Cancelling out the common terms, we find:
-3/k = -B.
Multiplying both sides by -1, we get:
3/k = B.
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How many solutions does this equation have? 4x+(-3x+2)=2x+5-2
Answer:
One Solution
Step-by-step explanation:
So we have the equation:
\(4x+(-3x+2)=2x+5-2\)
On both sides, combine like terms:
\((4x-3x)+2=2x+(5-2)\)
Simplify:
\(x+2=2x+3\)
Subtract x from both sides. The left cancels:
\((x+2)-x=(2x+3)-x\\2=x+3\)
Subtract 3 from both sides. The right cancels:
\((2)-3=(x+3)-3\\-1=x\)
Flip:
\(x=-1\)
So, our equation only has one solution.
And the answer is -1 :)
What is the solution to the equation 5(x-6)= 2(x+3)?
X =
Previous Activity
Answer:
x = 12
Step-by-step explanation:
5(x - 6) = 2(x + 3)5x - 30 = 2x + 65x - 2x = 30 + 63x = 36x = 36/3x = 12NO LINKS!! URGENT HELP!!
Calculate the perimeter of the following figures.
Answer:
Quadrilateral: 20.5 units
Triangle: 8.6 units
Step-by-step explanation:
Quadrilateral:
We can use the following formula to find the perimeter of a quadrilateral.
Perimeter = AB + BC + CD + DA
where AB, BC, CD, and DA are the lengths of the four sides of the quadrilateral.
In your case, the coordinates of the vertices of the quadrilateral are A(-3,-1), B(-3,3), C(2,3), and D(4,-1).
Using the distance formula, we can find the lengths of the four sides of the quadrilateral as follows:
\(AB = \sqrt{(-3 - (-3))^2 + ((-1) - 3)^2} = \sqrt{16} = 4\)
\(BC = \sqrt{(-3 - 2)^2 + ((3) - 3)^2} = \sqrt{25}= 5\)
\(CD = \sqrt{(2 - 4)^2 + ((3) - (-1))^2} = \sqrt{4+16} = 2\sqrt{5}\)
\(DA = \sqrt{(4 - (-3))^2 + ((-1) - 1)^2} = \sqrt{49} =7\)
Therefore, the perimeter of the quadrilateral is:
Perimeter = AB + BC + CD + DA
= \(4+5+2\sqrt5+7=20.5\) units
Triangle
The perimeter of a triangle is the total length of all three sides of the triangle. To find the perimeter of a triangle, we can use the following formula:
Perimeter = AB + BC + CA
where AB, BC, and CA are the lengths of the three sides of the triangle.
In your case, the coordinates of the vertices of the triangle are
E(-4,1), F(-2,3), and G(-2,4). Using the distance formula, we can find the lengths of the three sides of the triangle as follows:
\(EF = \sqrt{(-4 - (-2))^2 + ((1) - (3))^2} = 2\sqrt{2}\)
\(FG = \sqrt{(-2 - (-2))^2 + ((3) - (4))^2} = 1\)
\(EG = \sqrt{(-4 - (-2))^2 + ((1) - (4))^2} = \sqrt{4 + 9} = \sqrt{13}\)
Therefore, the perimeter of the triangle is:
Perimeter = EF + FG + EG
= 4 + 1 + \(\sqrt{13}\)
=8.6 units
Therefore, the perimeter of the quadrilateral is 20.5 units and the perimeter of the triangle is 8.6 units
Create a list of steps, in order, that will solve the following equation.
(a + 5)2 -
:-1=3
Solution steps:
FIN
As
Add 1 to both sides
Multiply both sides by 4
MY
Multiply both sides by
1
4
Col
Subtract 1 from both sides
MY
Subtract 5 from both sides
Pro
Square both sides
Pro
Take the square root of both sides
Tea
Report a problem