The required sample size of the given estimate is 3030.65.
Given that,
The population standard deviation is approximately σ = 50.2. You would like to be 90% confident that your estimate is within 1.5 of the true population mean.
Statistics is the study of mathematics that deals with relations between comprehensive data.
Here,
For the 90% confidence the value of the z = 1.645
Now the sample size is given as,
n = [z × σ/1.5]²
Substitute values in the above equation,
n = [1.645×50.2/1.5]²
n = 3030.65
Thus, the required sample size of the given estimate is 3030.65.
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A six -sided fair number cube is rolled once . What is the probability that the result is a 2 or a 5? Select one :1/61/32/55/6
total number of sides = 6
sides that are 2 or 5 = 2
Divide the sides thata re 2 or 5 (2) by the total sides:
2 /6 = 1/3
Find the value of X. If ur answer is not an integer
Answer: x = (5√2)/2
The last option
Explanation:
The given triangle is a right triangle. Taking angle 45 as the reference angle,
hypotenuse = 5
opposite side = x
We would find x by applying the sine trigonometric ratio which is expressed as
sin θ = opposite side/hypotenuse
By substituting the given values into the equation,
sin45 = x/5
Recall,
[tex]sin45\text{ = }\frac{\sqrt{2}}{2}[/tex]Thus,
[tex]\begin{gathered} \frac{\sqrt{2}}{2}\text{ = }\frac{x}{5} \\ By\text{ crossmultiplying,} \\ x\text{ = }\frac{5\sqrt{2}}{2} \end{gathered}[/tex]x = (5√2)/2
The last option
Please Answer Fast
Write down the next two terms in these quadratic sequences:
9, 13, 19, 27, ___, ___
-5, 0, 9, 22, ___, ___
The next two terms of the first quadratic sequences are 37 and 49.
The next two terms of the second quadratic sequences are 39 and 60.
What are the next two terms?A quadratic sequence is a sequence in mathematics where the second difference between consecutive terms in the sequence is the same
The first step is to determine the relationship between the terms in the quadratic sequence.
The difference between 9 and 13 = 13 - 9 = 4
The difference between 19 and 13 = 19 - 13 = 6
The difference between 27 and 19 : 27 - 19 = 8
It can be seen that the first difference between the terms in the sequence quadratic sequence increases by 2.
The difference between the fourth term and the fifth term would be 8 + 2 = 10
Fifth term = 27 + 10 = 37
The difference between fifth term and the sixth term would be 10 + 2 = 12
37 + 12 =49
The first step is to determine the relationship between the terms in the quadratic sequence.
The difference between 0 and -5 : 0 - -5 = 5
The difference between 0 and 9 = 9 - 0 = 9
The difference between 9 and 22 = 22 - 9 = 13
Based on the first difference between the consecutive terms in the digit, it can be seen that the first difference increase by a value of 4.
The difference between the fourth term and the fifth term would be : 13 + 4 = 17
Fifth term = 22 + 17 = 39
The difference between fifth term and the sixth term would be 21 ( 17 + 4)
39 + 21 = 60
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how would i rewrite the polynomial in the form ax^2+bx+c and then identify the values of a,b, and c1/3x^2+7-6x
Answer:
a=1/3, b=-6, c=7
Explanation:
Given the polynomial:
[tex]\frac{1}{3}x^2+7-6x[/tex]We reorder it to rewrite the polynomial in the form ax²+bx+c:
[tex]\frac{1}{3}x^2-6x+7[/tex]Next, by comparing:
• a is the coefficient of x²: a=1/3
,• b is the coefficient of x: b=-6
,• c is the constant: c=7
[tex]a=\frac{1}{3},b=-6,c=7[/tex]5
6
Z
1
23
4.
75°
7
y
13 16
14 15
9 12
11
10
x
w
What is mZ2?
What is m1?
Answer: [tex]m\angle 2=75^{\circ}, m\angle 1=105^{\circ}[/tex]
Step-by-step explanation:
By the alternate interior angles theorem, [tex]m\angle 2=75^{\circ}[/tex].
Using linear pairs, [tex]m\angle 1=105^{\circ}[/tex].
Factor the expression 54x2-6y^2?
Which equation shows the inverse property of multiplication?
Answer:
What are the outstanding traditional Chinese culture?
1. Drama is a general term for stage performing arts that achieve narrative purposes in the form of language, movement, dance, music and puppets.
2. Chinese painting, originated in the Han Dynasty, mainly refers to the scroll painting painted on silk, rice paper and silk and mounted.
3, Calligraphy, calligraphy is a unique form of artistic expression of the beauty of Chinese characters in China and the surrounding countries and regions that have been deeply influenced by Chinese culture.
4, Shadow Puppets, also known as "Shadow Puppets" or "lantern Puppets", is a kind of folk drama made of animal skins or cardboard silhouettes to perform stories.
5. Pingju, which is popular in northern China, is one of the traditional operas of the Han nationality and one of the most popular operas among the people. It ranks among the five kinds of operas in China.
d. Bottom: summary 5. Complete the Coached Example on page 285 - fill in the blanks Upload the Cornell Notetaking Guide and the Coached Example ACHED EXAMPLE number of text messages that Aimee sent on each of the past 7 days is shown 24, 19, 11, 15, 11, 28, 20 t are the first quartile, third quartile and interquartile range of this data set? the numbers from least to greatest. - IL 15 19. 20. 24.29 the median. The median is the 19 Median: _19 value of an ordered data set. 1 is the median of the half ofa data set
The first quartile (Q1) is defined as the middle number between the smallest number (minimum) and the median of the data set. The first quartile is the median of the first half of a data set.
First QuartileQ1 =11
The third quartile (Q3) is the middle value between the median and the highest value (maximum) of the data set. The third quartile is the median of the second half of a data set.
Third QuartileQ3 = 24
The interquartile range (IQR), is equal to the difference between 75th and 25th percentiles. IQR = Q3 − Q1
IQR = 13
Evaluate the expression a-5 -b, when a= 10 and b=4
Given the expression:
a - 5 - b
we want to evaluate it when a = 10 and b = 4. To do it, we have to replace these values into the equation as follows:
10 - 5 - 4 = 1
contains (1,1) and has a shape of f(x)=2x^2 vertex is on the y axis
ANSWER
| x=0
Step-by-step explanation:
f(x) = 2x²
Rewrite the function by completing the
square
f(x)
= 2x²
Find the symmetry
X = 0
anwser? please i need this to pass my test and i dont understand
Based on the conversion rate between kilometers and miles, the data to complete the table is:
8 miles : 12.88 kilometers 0.93 miles : 1.5 kilometers 5.58 miles : 9 kilometers 3.1 miles : 4.991 kilometersHow to convert miles to kilometers?For every given mile, there will be 1.61 kilometers. To convert miles to kilometers therefore, you have to multiply the number of miles by the number of kilometers in a mile.
If given 8 miles, the number of kilometers is:
= 8 x 1.61
= 12.88 kilometers
If given 3.1 miles, the number of kilometers is:
= 3.1 x 1.61
= 4.991 kilometers
If given 1.5 kilometers, then the number in miles is:
= 1.5 x 0.62
= 0.93 miles
If given 9 kilometers, then the number in miles is:
= 9 x 0.62
= 5.58 miles
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How is this shape not a parallelogram?
There one pair of congruent sides and a bisected diagonal, we can draw two tringles then by using CPCTC, we can conclude that we have 2 pairs of congruent sides, and thus a parallelogram.
Answer:
SSA is not a valid congruence theorem
Step-by-step explanation:
Given a figure with opposite sides the same length, and their ends joined by a line through the midpoint of the segment joining their other ends, you want to know why the shape is not a parallelogram.
SSA congruenceThe recognized congruence theorems are ...
AAS, ASA, SAS, SSS
The "would be" SSA theorem is not included, because the case where the angle is opposite the shortest of the two sides does not uniquely specify the triangle.
In this diagram, the sides marked with 2 and 1 hash marks are sequential with the vertical angle where the diagonals cross. Hence the only basis for claiming the triangles congruent is SSA.
The basis for claiming congruence is not a recognized congruence theorem, so we cannot conclude the triangles are congruent. (CPCTC does not apply.)
__
Additional comment
As we noted, the SSA criterion for congruence fails if the given angle cannot be demonstrated to be opposite the longest side. The attachment shows the case where the single-hash segment is longer than the double-hash segment, so there are two ways to draw the figure. One is a parallelogram, the other is not.
The HL congruence theorem is essentially SSA, where the A is the right angle. If the angle can be demonstrated to be the largest in the triangle, then the SSA theorem can be used (as for right- or obtuse triangles).
As the attachment shows, there is nothing in this geometry that requires the vertical angle(s) opposite the double hash be the largest.
<95141404393>
This is a Statistics question. Please Help
Considering the normally distributed variable, the proportion/percentage are given as follows:
a) Proportion of serves faster than 121 mph: 0.16.
b) Percentage of serves between 109 and 133 mph: 84%.
Normal DistributionThe z-score of a measure X of a variable that has mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by the following equation:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score measures how many standard deviations the measure represented by X is above or below the mean of the distribution, depending if the z-score is positive or negative.From the z-score table, the p-value associated with the z-score is found, and it represents the percentile of the measure X in the distribution.As stated in the problem, the mean and the standard deviation of the serve speeds are given as follows:
[tex]\mu = 115, \sigma = 6[/tex]
The proportion of serves faster than 121 mph is one subtracted by the p-value of Z when X = 121, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
Z = (121 - 115)/6
Z = 1
Z = 1 has a p-value of 0.8413.
1 - 0.8413 = 0.1587, which is the desired proportion.
The proportion of serve speeds between 109 and 133 mph is the p-value of Z when X = 133 subtracted by the p-value of Z when X = 109, hence:
X = 133:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
Z = (133 - 115)/6
Z = 3
Z = 3 has a p-value of 0.9987.
X = 109:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
Z = (109 - 115)/6
Z = -1
Z = -1 has a p-value of 0.1587.
0.9987 - 0.1587 = 0.84, hence the percentage is of 84%.
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112Calculate and simplify as much as possible theperimeter and area of the largest figure. All four-sided figures are rectangles.9Perimeter =рArea =
SOLUTION:
Step 1:
In this question, we are meant to solve the following:
Step 2:
The perimeter of the largest figure is:
[tex]\begin{gathered} Length\text{ + Width + Length + Width} \\ =\text{ ( 12 + p ) + q + ( 12 + p ) + q} \\ =\text{ 24 + 2p + 2q} \\ =\text{ 24 + 2 ( p + q)} \end{gathered}[/tex]On the other hand, the area of the largest figure is:
[tex]\begin{gathered} \text{Length x Width} \\ =\text{ ( 12 + p ) x q} \\ =\text{ ( 12 + p )q} \end{gathered}[/tex]The area of a large plantation is eleven and seven hundredths kilometers. The length of the plantation is one tenth kilometers. How many kilometers is the width of the plantations?
The width of the plantation is 110. 7 kilometers
How to determine the width of the plantationIt is important to note that the formula for calculating the area of a rectangle is expressed as;
Area, A = lw
Where;
A represents the area of the rectanglel is the length of the rectanglew is the width the rectangleGiven that;
The value of the area of the large plantation is eleven and seven hundredths kilometers.
This is expressed as;
Area = 11. 07 kilometers
The value of the length is one tenth kilometers.
This is expressed as;
Length = 1/10 kilometers = 0. 1 kilometers
Now, substitute the values into the formula to determine the width
11. 07 = 0. 1w
Divide both sides by the coefficient of w, w have;
11.07/0.1 = 0.1w/0.1
Find the quotient
w = 110. 7 kilometers
Hence, the value is 110. 7 kilometers
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help help help help help help help
The total capacity of her tank would be; 21 gallons.
What is the fundamental principle of multiplication?If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
Given that Leslie makes a stop at a gas station. she put 14 gallons into her tank. if the tank is now 2/3 full.
Let c be the total capacity of the tank.
Then, we can find the capacity of her tank;
c x 2/3 = 14
Cross multiplication;
c = 14 x 3/2
c = 7 x 3
c =21
Hence, the total capacity of her tank would be; 21 gallons.
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True or false?
A supply shock is a sudden shortage of a good.
The following statement "A supply shock is a sudden shortage of a good" is true.
A supply shock is an unexpected incident that abruptly affects the supply of a product or commodity, resulting in an unanticipated change in price. Supply shocks can be negative, resulting in a fall in supply, or positive, resulting in an increase in supply.
Assuming that aggregate demand remains constant, a negative (or unfavorable) supply shock causes a product's price to rise, whereas a positive supply shock causes the price to fall.
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Write the slope-intercept form equation for a line that contains point (0, 5) and has a slope of 5/4
The slope-intercept form equation for a line that contains point (0, 5) and has a slope of 5/4 is y = (5/4)x + 5
In this question, we have been given a point (0, 5) and a slope 5/4
We need to write the slope-intercept form equation for a line that contains point (0, 5) and has a slope of 5/4
Using the formula for the point-slope form equation of a line:
(y - y1) = m(x - x1)
y - 5 = (5/4)(x - 0)
y - 5 = (5/4)x
y = (5/4)x + 5
which is slope-intercept form of line.
here slope = 5/4 and y-intercept = 5
Therefore, the slope-intercept form equation for a line that contains point (0, 5) and has a slope of 5/4 is y = (5/4)x + 5
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please can you help me to solve an equation ?Determine whether the statement is true or false : The slope of the line y = 1 is zero
The given line equation is y=1.
The general form of the line equation is
[tex]y=mx+b[/tex]Comparing this equation with y=1, we get
[tex]mx+b=1[/tex][tex]mx+b=(0)x+1[/tex]Compare coefficient of x and constant term, we get
[tex]m=0\text{ and b=1}[/tex]Here m=0 is the slope of the line y=1.
Hence the slope of the line y = 1 is zero.
This statement is true.
The table shows the total distances of four trails. You want to complete a trail in $1\frac{1}{2}$ hours with an absolute deviation of at most 15 minutes. You hike at a rate of 3 miles per hour. Which trails can you hike? Select all that apply. Trail Miles $A$ $B$ $C$ $D$ $5\frac{1}{4}$ $4\frac{3}{4}$ $3\frac{1}{2}$ $4$ response - correct Responses A A B B C C D D Question 2 Use an absolute value inequality to justify your answer. Inequality : Question 3 Explain.
Using proportions, the trails that you can hike are given as follows:
Trail A.Trail B.What is a proportion?A proportion is a fraction of a total amount, and equations can be built to find the desired measures in the problem using operations such as multiplication or division.
Two examples of proportions are used in this problem:
Relations between hours and minutes -> one hour = 60 minutes.Conversion of mixed numbers to decimal: a and b/c = a + b/c.The time you want to complete a trail is:
1 and 1/2 hours with an absolute deviation of at most 15 minutes.
1 and 1/2 hours = 1.5 hours, as 1 + 1/2 = 1 + 0.5 = 1.5 hours.
1.5 hours = one hour and 30 minutes with a deviation of 15 minutes, the time lengths are:
Lower bound: one hour and 15 minutes = 1.25 hours.Upper bound: one hour and 45 minutes = 1.75 hours.Considering the rate of 3 miles, the distances are between:
1.25 x 3 = 3.75 miles.1.75 x 3 = 5.25 miles.The times for each trail, converting the mixed numbers to decimals, and the decimals to hours and minutes, are given as follows:
Trail A: 5 and 1/4 miles = 5.25 miles -> Yes.Trail B: 4 and 3/4 miles = 4.75 miles -> Yes.Trail C: 3 and 1/2 miles = 3.5 miles -> No, too short.More can be learned about proportions at https://brainly.com/question/24372153
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Complete the following truth table. Use T for true and F for false.You may add more columns, but those added columns will not be graded.
Given,
The equation of table is
[tex]\urcorner p\wedge\urcorner q^{}[/tex]Here,
[tex]\begin{gathered} p\text{ q }\urcorner p\text{ }\urcorner q\text{ }\urcorner p\wedge\urcorner q \\ T\text{ T F F F} \\ T\text{ F F T F} \\ F\text{ T T F F} \\ F\text{ F T T T} \end{gathered}[/tex]Hence, the output of the table is F, F, F, and T
If (fg)(x) = h(x) such that h of x is equal to the square root of the quantity 4 times x plus 8 end quantity which of the following could accurately represent f and g?
The representation of the composite functions f(x) and g(x) are f(x) =√x and g(x) = 4x + 8
How to determine the possible equations of the composite functions f(x) and g(x)From the question, we have the following parameters
(fg)(x) = h(x)
Such that
h(x) = √4x + 8
The given parameter implies that
(fg)(x) =√4x + 8
Let g(x) = 4x + 8
Substitute g(x) for 4x + 8 in the above equation (fg)(x) =√4x + 8
So, we have
(fg)(x) =√g(x)
Substitute g(x) for x in the above equation (fg)(x) =√g(x)
f(x) =√x
This means that
f(x) =√x and g(x) = 4x + 8
Hence, the possible equations are f(x) =√x and g(x) = 4x + 8
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in the conditional statement “If the temperature of water is between the temperatures of ice and steam, then ice is colder than water and steam is hotter than water.” write the given statement and the to prove statement.
Ice is colder than water due to its more heat absorbing capacity then water and steam is hotter than water due to high heat transfer rate then water.
What is specific heat capacity ?
In scientific terms, a specific heat capacity is the quantity of heat (J) absorbed by a material every time its temperature goes up 1 K (or 1 °C), given in J/(kg K) or J/(kg °C) per unit mass. formulae for specific heat capacity is given by :
Q = mCΔT
Here the given statement is :
If the temperature of water is between the temperatures of ice and steam, then ice is colder than water and steam is hotter than water.
The above statement is justified below :
The steam exhibit more energy than water at the same temperature that is 100° C. The steam uses the latent heat of vaporization so as to get vaporized and water do not exhibit energy and also, The arrangement of molecules in substances is widely influenced by the state of the matter of the substance. In this way, in solids the molecules have a fix organization and are closely packed due to this, solids have both a defined shape and volume; in liquids the molecules are still close to each other but there is no a defined structure and therefore liquids have a defined volume but not a defined shape; finally, in gases molecules do not follow an orderly arrangement and there is more space between them which makes them not have a define volume or shape.
According to this, we can say that Ice is colder than water due to its more heat absorbing capacity then water and steam is hotter than water due to high heat transfer rate then water.
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Which expressions can be used to find m∠ABC? Select two options.
cos−1(StartFraction 9.8 Over 6.3 EndFraction)
cos−1StartFraction 6.3 Over 9.8 EndFraction)
cos−1(StartFraction 7.5 Over 9.8 EndFraction)
sin−1(StartFraction 9.8 Over 7.5 EndFraction)
sin−1(StartFraction 7.5 Over 9.8 EndFraction)
]
The expressions which can be used to find m∠ABC and from the task content are;
cos−¹(StartFraction 6.3 Over 9.8 EndFraction).sin−¹(StartFraction 7.5 Over 9.8 EndFraction).Which expressions can be used to find m∠ABC among the answers choices?It follows from the task content that the expressions which can be used to find m∠ABC are to be identified among the answer choices.
Since, it follows from trigonometric ratios that;
Sin theta = opposite/hypothenuse
Cos theta = adjacent/hypothenuse
It therefore follows that;
Cos(m∠ABC) = 6.3/9.8Sin(m∠ABC) = 7.5/9.8Therefore, the measure of angle ABC can be determined using any of the formulas above;
m∠ABC = cos-¹(6.3/9.8)m∠ABC = sin-¹(7.5/9.8)Therefore the two expressions which can be used to find m∠ABC are;
cos−¹(StartFraction 6.3 Over 9.8 EndFraction).sin−¹(StartFraction 7.5 Over 9.8 EndFraction).Read more on trigonometric ratios;
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Answer: the answer is B [tex]cos^{-1}(\frac{6.3}{9.8}) sin^{-1}(\frac{7.5}{9.8})[/tex]
Step-by-step explanation: it will be show below.
How to calculate mode and media
Place the data points in descending order of size to find the center number. The median is as shown. The median is the average of the two numbers if there are two of them. The number that appears the most frequently in a piece of data is the mode.
The middle value in a list that is arranged from smallest to greatest is called the median. The value that appears the most frequently on the list is the mode. Organize the numbers in a set in whatever order—from lowest to highest or highest to lowest—and then tally the frequency with which each number appears in the group. The mode is the one that shows up most frequency
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If x=|9|what are the possible values of x?
Answer:
9
Step-by-step explanation:
the absolute value function always delivers only the positive value of anything inside the absolute function.
therefore, x is 9 and only 9.
you want to use a spoon section of your yard for a chicken pen. you have at most 50 feet of fencing to form the fun. Find the possible length of each side of the chicken pen
The sum of the length around a square is known as the perimeter thus the possible length of each side of the chicken pen assuming it to be square is 12.5 feet.
What is the perimeter?Perimeter is the addition of an external measure of sides it will always positive.
A perimeter is a length and has a degree of the unit as one.
Perimeter of square = side + side + side + side
Let's assume the chicken pen to the square in order to find the length of each side.
Now since fencing is fitted around the sides so it will be the same as the perimeter of the square.
Perimeter of square = 4 × side
4 × side = 50
Side = 50/4 = 12.5 feet.
Hence "The sum of the length around a square is known as the perimeter thus the possible length of each side of the chicken pen assuming it to be square is 12.5 feet".
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All of the triangles below have a base to height ratio of 5:2. Label the missing dimensions
ANSWER:
1. b = 5
2. h = 6
3. b = 30
STEP-BY-STEP EXPLANATION:
We know the ratio between height and base.
By means of the following proportions we can determine the missing dimensions in each case:
[tex]\begin{gathered} \frac{5}{2}=\frac{b}{h} \\ \\ \text{ 1st triangle} \\ \\ \frac{5}{2}=\frac{b}{2}\rightarrow b=5 \\ \\ \text{ 2nd triangle} \\ \\ \frac{5}{2}=\frac{15}{h}\rightarrow h=\frac{15}{5}\cdot2\rightarrow h=6 \\ \\ \text{ 3rd triangle} \\ \\ \frac{5}{2}=\frac{b}{12}\rightarrow b=12\cdot\frac{5}{2}\rightarrow b=30 \end{gathered}[/tex]Can someone please help me with this (there is a part two)
Part A)
Let x be a number of horses that Sunshine Acre Farm can support. Since each horse needs 1.75 acres of pasture, and the farm has at most 35 acres of pasture available, then we can set the following inequality:
[tex]1.75x\le35.[/tex]Answer Part A)
[tex]1.75x\le35.[/tex]How can you solve, write and graph inequalities on a number line?
Let's use the following inequation as an example:
[tex]2y>6[/tex]First let's simplify it dividing the inequation by 2:
[tex]y>3[/tex]Now, let's draw a number line, and include the point 3 in it:
We want the values of y that are greater than 3, that is, the numbers to the right of the number 3 in the number line. So we mark the area that corresponds to the values of y that satisfies the inequation:
The number 3 is not part of the answer, because 3 is not greater than 3, so we draw a small empty circle on the number 3. If the number 3 was part of the answer, the circle would be filled.