The table is given as,
Z- Score -0.299
Q₁ 36.47
Q₂ 38.45
Q₃ 41.2
IQR 4.25
Lower fourth 30.375
Upper fourth 47.375
What is z- score?An illustration of a standardised score is the z-score. A z-score calculates how far a data point deviates from the distribution's mean by standard deviation.
Given:
Sample Data = 31.5, 36.0, 37.8, 38.5, 40.1, 42.2, 34.2, 36.2, 38.1, 38.7, 40.6, 42.5, 34.7, 37.3, 38.2, 39.5, 41.4, 43.4, 35.6, 37.6, 38.4, 39.6, 41.7, 49.3
(a) The value of z-score is calculated as follows,
μ =[tex]\sum_{i=1}^n X_i[/tex]/ n = 933.1 /24 = 38.88
σ = 3.61
z = X - μ / σ
= 37.8 - 38.88/3.61
= − 0.299
Therefore, the value of z-score is -0.299.
(b) Quartile:
Recalling the values: 31.5, 36, 37.8 ,38.5, 40.1 ,42.2, 34.2 ,36.2, 38.1, 38.7, 40.6 ,42.5, 34.7, 37.3 ,38.2, 39.5 ,41.4, 43.4, 35.6, 37.6 ,38.4 ,39.6 ,41.7, 49.3
Q₁ = ( n+1/4)th value
= (24+1/4)th value
= 6.25th value
= 36.2 + 0.25 x ( 37.3 − 36.2 )
= 36.47
and, M = ( n+1/2)th value
= (24+1/2)th value
= (24+1/4)th value
= 12.5 t h
= 38.4 + 38.5/2
= 38.45
Q₃ = 3( n+1/4)th value
= 3(24+1/4)th value
= 18.75 t h v a l u e
= 40.6 + 0.75 x ( 41.4 − 40.6 )
= 41.2
(c) Interquartile range = Q ₃ − Q ₁
= 41.2 − 36.47
= 4.25
Therefore, the IQR value is measure of spread of data, and here the value of IQR = 4.25.
(d) Lower fences = Q₁− 1.5 ( I Q R )
= 36.75 − 1.5 ( 4.25 )
= 30.375
Upper fences = Q ₃+1.5
= 41 + 1.5( 4.25 )
= 47.375
Hence, there is outliers since observations are not less than 30.375 and greater than 47.375.
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original pice $65.00 with a 10% discount
Answer: 58.5
Step-by-step explanation: 65.00 - 10% = 58.5
Answer: $58.50
Step-by-step explanation: Orignal Price: $65.00
10% discount = -$6.50
$65.00 - $6.50 = $58.50.
What is the value of x in the triangle?
Answer: D. [tex]5\sqrt{3}[/tex]
Step-by-step explanation:
[tex]\tan 30^{\circ}=\frac{x}{15}\\\\x=15 \tan 30^{\circ}\\\\x=5\sqrt{3}[/tex]
ria is buying plates and cubs for a party. she wants the same numbers of each.Plates are sold in packs of 8. cups are sold in packs of 12. what is the least number of plates and cups that ria can buy
The least number of plates and cups she can buy is 24. She will buy 3 packs of plates and 2 packs of cup
What is ratio?The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.
Given, ria is buying plates and cubs for a party. she wants the same numbers of each. Plates are sold in packs of 8. cups are sold in packs of 12.
Plates = 8 per pack
Cups = 12 per pack
the Lowest common multiple of 8 and 12
8 = 16, 24, 32, 40, 48, 56, 64, 72, 80
12 = 24, 36, 48, 60, 72
The Lowest common multiple of 8 and 12 is 24
The least number of plates and cups she can buy is 24
Packs of plates = 24 plates / 8 per pack
= 3 packs
She will buy 3 packs of plates
Packs of cups = 24 / 12 per pack
= 2 packs
She will buy 2 packs of cup
Therefore, The least number of plates and cups she can buy is 24. She will buy 3 packs of plates and 2 packs of cup
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evaluate without a calculator: sec 30°
Answer:
sec 30° = 1/cos 30° = 2.
Step-by-step explanation:
The secant function (sec) is the reciprocal of the cosine function. So, sec(x) = 1/cos(x). The value of cosine at 30 degrees is sqrt(3)/2, and its reciprocal is 2/sqrt(3), which can be simplified to 2. Hence, sec(30°) = 2.
calculate the length of AC to 1 decvimL POINT
Answer:The length of AC to one decimal place in the trapezium is 18.1 cm
Step-by-step explanation: Using Pythagoras theorem, we can find the length AC
Pythagoras theorem
c² = a² + b²
Therefore, draw a line from the point B to the line AD and call it line BX.
BX ║ CD
Therefore,
16² - 7² = BX²
256 - 49 = BX²
BX² = 207
BX = √207
BX = 14.3874945699
BX = 14.4 cm
Therefore,
11² + 14.4² = AC²
121 + 207.36 = AC²
AC = √328.36
AC = 18.120706388
AC = 18.1 cm
Solve the inequality: −5x−4≤6
x > -2
Step-by-step explanation:Inequalities compare the values of 2 expressions.
Solving for x
To solve the inequality, we need to isolate x. First, add 4 to both sides.
-5x ≤ 10Then, divide by 5.
-x ≤ 2Finally, divide both sides by -1. When multiplying or dividing an inequality by a negative, switch the direction of the sign.
x > -2Interpreting the Answer
Verbally, the answer is that x is greater than or equal to -2. This means that any x-value greater than -2 (including -2 itself) will make the original inequality, −5x−4 ≤ 6, true. For example, let's plug in 0.
-5(0) - 4 ≤6-4 ≤ 6This statement is true, which proves our answer is correct.
Hey guys please help me with my quiz its about finding the values of letters in angles!!
The value of x is given as follows:
x = 24.
The measure of angle DFE is given as follows:
<DFE = 62º.
How to obtain the measures?To obtain the measures, we consider that the sum of the measures of the internal angles of a triangle is of 180º.
The internal angle measures for this problem are given as follows:
180 - (5x - 14) -> each angle is supplementary with it's external.44º.3x - 10.Hence the value of x is obtained as follows:
180 - 5x + 14 + 44 + 3x - 10 = 180
228 - 2x = 180
2x = 48
x = 24.
The measure of angle DFE is obtained as follows:
<DFE = 3(24) - 10
<DFE = 72 - 10
<DFE = 62º.
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13, 11, 9, 7 In the number pattern above, each term is 2 less than the previous term. Which of the following is also true about the pattern?
A. All the numbers are multiples of 3.
B. All the numbers are even.
C. All of the numbers are prime.
D. All the numbers are odd.
HURRY ITS DUE TODAY
The truth about the pattern that we have here is that all of the numbers are: odd.
What are odd numbers?In the number pattern given, each term is 2 less than the previous term. Starting from 13, we have 11 (13 - 2), 9 (11 - 2), and 7 (9 - 2). All of these numbers are odd, making answer D the correct choice.
A. All the numbers are multiples of 3: This is not true, as 9 is the only number that is a multiple of 3.
B. All the numbers are even: This is not true, as all of the numbers are odd.
C. All of the numbers are prime: This is not true, as 9 is not a prime number.
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I need this for math homework anyone on tonight to help? 5/8 = x/12 x=
x = 15/2
do u need an explanation?
A pyramid is composed of six isosceles triangles and a hexagonal base. Each isosceles triangle has a height of 6 in. and a base of 10 in. The area of the hexagonal base is 259.8 in².
What is the surface area of the pyramid?
Enter your answer in the box.
in²
The surface area of the pyramid, given the height and base of the triangles, and the area of the hexagonal base, is 439. 8 square inches
How to find the surface area ?Let's determine the area of the six isosceles triangles using the formula;
= 6 x 1 /2 x base x height
= 6 x 1 / 2 x 10 x 6
= 180 square inches
The surface area of the pyramid is therefore;
= Area of triangles + Area of hexagonal base
= 180square inches + 259.8 square inches.
Add the values, we get;
= 439. 8 square inches
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Answer: 439.8
Step-by-step explanation:
A cylinder has a volume of 243 pi
and a diameter of 18. What is its height?
Answer:
0.955
Step-by-step explanation:
Height= volume x pi x radius squared (h = V x pi x r^2)
Volume (V) = 243
Height (h) = ?
Pi = 3.14
Radius (r) = 9
Diameter to radius = 18/2 = 9
h = 243 x 3.14 x 9^2
=0.955
Please use the law of sines to show me how to solve the triangle please. Thank you .
Answer:
[tex]\angle A= 27.2 \textdegree\\\angle B=37.3 \textdegree\\\angle C=115.5 \textdegree\\[/tex]
[tex]a=38.5[/tex] ft
[tex]b=51[/tex] ft
[tex]c=76[/tex] ft
Step-by-step explanation:
Here is the formula for the Law of Sines.
[tex]\frac{a}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}[/tex]`
In this example we are given
[tex]\angle A =27.2 \textdegree\\\angle C=115.5 \textdegree\\c=76.0[/tex]
Angle B
The sum of the interior angles in a triangle add up to 180º. Given 2 angles, we can evaluate the 3rd.
[tex]180\textdegree-115.5\textdegree-27.2\textdegree=37.3 \textdegree[/tex]
[tex]\angle B=37.3 \textdegree[/tex]
Side a
We can use the Law of Sines formula [tex]\frac{a}{\sin A}=\frac{c}{\sin C}[/tex] to evaluate side a.
Inserting our values into the equation gives us
[tex]\frac{a}{\sin 27.2}=\frac{76}{\sin 115.5}[/tex]
Cross multiply to evaluate side a.
[tex]76*\sin 27.2=a*\sin 115.5[/tex]
Divide both sides by [tex]\sin 115.5[/tex].
[tex]\frac{76*\sin 27.2}{\sin 115.5} =a[/tex]
[tex]38.49=a[/tex]
Side b
We can use the Law of Sines formula [tex]\frac{b}{\sin B}=\frac{c}{\sin C}[/tex] to evaluate side b.
Inserting our values into the equation gives us
[tex]\frac{b}{\sin 37.3}=\frac{76}{\sin 115.5}[/tex]
Cross multiply to evaluate side b.
[tex]76*\sin 37.3=b*\sin 115.5[/tex]
Divide both sides by [tex]\sin 115.5[/tex].
[tex]\frac{76*\sin 37.3}{\sin 115.5} =b[/tex]
[tex]51.03=b[/tex]
[tex]\angle A= 27.2 \textdegree\\\angle B=37.3 \textdegree\\\angle C=115.5 \textdegree\\a=38.5\\b=51\\c=76[/tex]
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sin(A) / a = sin(B) / b = sin(C) / c
where A, B, and C are the angles of the triangle, and a, b, and c are the lengths of the sides opposite those angles.
HELP
_______________
The correct statements regarding the translation from function f(x) to function g(x) are given as follows:
Function f is translated down 2 units.Function f is translated to left 3 units.What is a translation?A translation happens when either a figure or a function are moved horizontally or vertically.
The four translation rules for functions are given as follows:
Left a units: f(x + a).Right a units: f(x - a).Up a units: f(x) + a.Down a units: f(x) - a.The translations for this problem are defined as follows:
x - 2 to x + 1 -> x = x + 3 -> translated left 3 units.y -> y - 2 -> translation down 2 units.More can be learned about translations at brainly.com/question/28174785
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True or False
In a regular convex polygon all sides and angles are congruent and you can only draw diagonals inside the polygon.
Describe the error in finding the perimeter of the figure. And find the perimeter
Answer:
The length of 5 inches should be counted 1 time.
Step-by-step explanation:
The 5 inches between the triangle and rectangle is inside the shape. So, it doesn't count as perimeter.
What is the sum of 3 of the interior angles of a regular pentagon?
5 stars and like
Answer: 540°.
Step-by-step explanation:
by
i need help with this question
The exponential function from the table is f(x) = 2 [tex](0.5)^x[/tex].
The graph is given below.
Option D is the correct answer.
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
The exponential function is given as,
f(x) = m[tex]a^x[/tex]
Now,
From the table,
2 = m[tex]a^0[/tex]
m = 2
1 = m[tex]a^1[/tex]
m = 1/a ____(1)
0.5 = m[tex]a^2[/tex]
m = 0.5/[tex]a^2[/tex] _____(2)
Now,
From (1) and (2).
1/a = 0.5/[tex]a^2[/tex]
a = 0.5
Now,
f(x) = 2 [tex](0.5)^x[/tex]
Thus,
The exponential function is f(x) = 2 [tex](0.5)^x[/tex].
The graph is given below.
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What are the intercept(s) of f(x) = x2?
Answer:
x intercept: (0,0)
Step-by-step explanation:
y intercept: (0,0)
Explain what AB means and what AB/ means. How are these two meanings related?''
AB vector is a vector whereas AB bar is a line segment.
What is a vector ?
The vectors are described as an object containing both significance and course. Vector describes the motion of an item from one point to any other. Vector math may be geometrically picturised via the directed line segment.
The duration of the phase of the directed line is known as the value of a vector and the angle at which the vector is inclined shows the path of the vector. The start line of a vector is referred to as “Tail” and the finishing factor (having an arrow) is referred to as “Head.”
The difference is in their names itself.
AB vector is a vector whereas AB bar is a line segment.
A vector has a direction and a magnitude while a line segment ( scalar ) has only magnitude.
Therefore, AB vector is a vector whereas AB bar is a line segment.
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A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts
down the slope, its speed is 4 m/s. 3 seconds later, at the bottom of the slope,
its speed is 22 m/s. What is the cars acceleration?
Find the surface area of the sphere. Use 3.14 for pi.
A. 1519.8 yd2
B. 276.3 yd2
C. 6079.0 yd2
D. 552.6 yd2
Answer:
A
Step-by-step explanation:
please memorize this formula for area of sphere
A=4π r²
so d = 22, which means r=11
so A = 4* π*11² = 4*121*π =484π = 1519.76
PLEASE HURRY This figure consists of a rectangle and semicircle.
What is the area of this figure?
Use 3.14 for π.
Enter your answer as a decimal in the box.
(Image: A shape made up of a rectangle and a semicircle, with the semicircle on top of the rectangle. The rectangle has a width of 6 centimeters and a height of 4 centimeters.)
cm²
A shape made up of a rectangle and a semicircle, with the semicircle on top of the rectangle. The rectangle has a width of 6 centimeters and a height of 4 centimeters.
The area for this figure is given as follows:
38.13 cm².
How to obtain the area of the figure?The composite area of the figure is obtained by the sum of the areas of each component of the figure.
The figure is composed as follows:
Rectangle of width 6 centimeters and height of 4 centimeters.Semi-circle of diameter = 6 centimeters = radius of 3 centimers.The area of the rectangle is given by the multiplication of the dimensions, hence:
Ar = 6 x 4 = 24 cm².
The area of the semicircle is given by half the multiplication of π = 3.14 by the radius square, hence:
As = 0.5 x 3.14 x 3² = 14.13 cm².
Hence the total area is given as follows:
A = Ar + As
A = 24 + 14.13
A = 38.13 cm².
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Assume the following
actual machine hours during the period of 54000 hours
estimates machine hours to be worked during the coming period of 55000 hours manufacturing overhead applied to production during the period of 432000 estimated variable manufacturing overhead per machine hour of 2.7
which is the fixed MOH cost
Based on the manufacturing overhead applied to production during the period of $432,000, the fixed manufacturing overhead cost is $286,200.
What is the manufacturing overhead applied?The manufacturing overhead applied is determined as the product of the predetermined overhead rate and the actual machine hours consumed during the period.
Estimated machine hours to be worked = 55,000 hours
Actual machine hours during the period = 54,000 hours
Total manufacturing overhead applied to production = $432,000
Estimated variable manufacturing overhead per machine hour = $2.70
Total variable manufacturing overhead = $145,800 ($2.70 x 54,000)
Fixed manufacturing overhead (MOH) cost = $286,200 ($432,000 - $145,800)
Thus, the fixed manufacturing overhead cost is the difference ($286,200) between the total overhead cost applied and the variable manufacturing overhead cost.
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I need help ASAP!!!!!
Answer:
Nope
Step-by-step explanation:
No, because if you add the angles of B and C (since they're asking for line BC), they must equal the angles of A and D (Since the other line was AD)
The sum of B and C is 90+45 which = 135
The sum of A and D is 90+135 which = 225
135 =/= 225
How much is invested at 5% and 7%, with annual interest is $490, with a total of $8000
The amount invensted at 5% and 7% are 3500 and 4500 respectively.
What is a system of equations?A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.
Given that, an amount $8000, is invested at 5% and 7%, with annual interest is $490,
For this we will establish the a system of equations,
x + y = 8000......(i)
0.05x + 0.07y = 490
Multiplying by 100,
5x + 7y = 49000.....(ii)
Multiplying eq(i) by 5,
5x + 5y = 40000
Subtract eq(i) from eq(ii)
2y = 9000
y = 4500
Put y = 4500 in eq(i)
x = 8000 - 4500
x = 3500
Hence, the amount invensted at 5% and 7% are 3500 and 4500 respectively.
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A museum charges $7 per person for a guided tour with a group of 1 to 14 people or a fixed $105 fee for a group of 15 or more people. Write a function relating the number of people, n, to the cost, C.
The value of function relating the number of people, n, to the cost, C is,
⇒ C (n) = 7n ; if 0 < n < 15
= 105n ; if n ≥ 15
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
A museum charges $7 per person for a guided tour with a group of 1 to 14 people or a fixed $105 fee for a group of 15 or more people.
Hence, he value of function relating the number of people, n, to the cost, C is,
⇒ C (n) = 7n ; if 0 < n < 15
= 105n ; if n ≥ 15
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2. What is the difference in rainfall from the wettest and driest months?
The difference in rainfall between the wettest and driest months is 3.97 inches.
What is a bar graph?A bar graph is a graphical depiction of information, amounts, or numbers using bars or strips. They are utilized to contrast and compare various data types, frequencies, or other measurements of several categories of data.
On the graph, there are two axes. The numerical data is displayed against the category data on one axis, which is used to depict the numerical values.
Given the graph which shows the rainfall of the wettest and driest months,
here red blocks are for the driest months and blue blocks show the wettest months,
From the graph, we can see that the wettest month has a rainfall height of 2.3 inches
The driest month has a rainfall of -1.67 inches
So the difference between the two will be;
2.3 - (-1.67)
= 2.3 + 1.67 = 3.97 inches
Hence the difference is 3.97 inches.
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The complete question is,
The bar graph shows the differences in a city’s rainfall from the historical average. What is the difference in rainfall between the wettest and the driest months? Write your answer as a decimal.
The difference in rainfall between the wettest and the driest months is inches.
Find the area of the rectangle
The area of the given rectangle will be A = 9x² - 64 yards².
What is a rectangle?
Rectangles are quadrilaterals having four right angles in the Euclidean plane of geometry. Various definitions include an equiangular quadrilateral, A closed, four-sided rectangle is a two-dimensional shape. A rectangle's opposite sides are equal and parallel to one another, and all of its angles are exactly 90 degrees.
The area of the rectangle is A = a*b
Given is l =(3x+8) yards
b = (3x-8)yards
So the area of the rectangle is A = l*b
A = (3x+8)(3x-8)
A = 3x² - 8²
A = 9x² - 64
hence the area of the given rectangle will be A = 9x² - 64 yards².
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What is the difference in rainfall from the wettest and driest months ?
The difference in rainfall between the wettest and driest months is the amount of precipitation.
What do you mean by precipitation?Precipitation refers to any form of moisture that falls from the atmosphere to the ground, including rain, snow, sleet, hail, and other forms of precipitation. Precipitation is an important aspect of the Earth's water cycle, as it provides the water that replenishes rivers, lakes, and aquifers, and sustains the growth of plants and animals.
The amount of precipitation that falls in a given area can vary widely, depending on many factors such as geography, temperature, and prevailing weather patterns. For example, areas near the equator tend to receive more rainfall than areas located closer to the poles, and areas with high elevations tend to receive more snow than areas that are closer to sea level.
The distribution of rainfall and other forms of precipitation across a region can also be affected by the prevailing winds, air masses, and topographical features. For example, mountainous areas may receive more rainfall due to the prevailing winds and the way that air masses interact with the terrain.
The difference in rainfall between the wettest and driest months is the amount of precipitation that occurs in the wettest month minus the amount of precipitation that occurs in the driest month. This difference can vary greatly depending on the location and climate of a region.
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Describe how the graph of the function is a transformation of the original function f.
y=f(x+16)
The graph of the function y = f(x + 16) is a transformation of the original function f. This transformation has shifted the graph of f to the right by 16 units on the x-axis. This means that the value of x in the original function has been increased by 16, which has an effect on the corresponding value of y in the transformed function.
For example, if the point (a, b) is on the graph of f, then the point (a + 16, b) will be on the graph of y = f(x + 16). The x-coordinate of the point has been increased by 16, and since the transformation is a horizontal shift, the y-coordinate remains unchanged.
In summary, the graph of y = f(x + 16) is a reflection of the graph of f about the vertical axis. The transformation has the effect of shifting the graph to the right, but preserving the shape and overall form of the original function.