a. what are the mean and median number of the number of times a face will appear? b. what are the mean and median face value of the 600 rolls of the die?
The mean and median number of times a face will appear are 100 and 99.5. The mean and median face value of the 600 rolls of the die are 96.2 and 94.5
a) Mean number of appearances of each face = [tex]\frac{107+120+84+110+92+87}{6}[/tex]
= 100
Median number of appearances of each face = Average of middle two values when arranged in ascending order
Ascending order: 84, 87, 92, 107, 110, 120
Average of middle two values = [tex]\frac{92+107}{2}[/tex]
= 99.5
b) Mean and Median face values of the 600 rolls of the die:
Mean = [tex]\frac{107\times1+120\times2+84\times3+110\times4+92\times5+87\times6}{21}[/tex]
= [tex]\frac{2021}{21}[/tex]
= 96.2
Median = [tex]\frac{92\times5+107}{2}[/tex]
= [tex]\frac{567}{6}[/tex]
= 94.5
The question is incomplete. The complete question is
"The following represents the outcomes of rolling a die 600 times
Face 1 2 3 4 5 6
Number 107 120 84 110 92 87
a. What are the mean and median numbers of appearances of each face?
b. What are the mean and median face values of the 600 rolls of the die?"
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50 points
How much would $400 be worth after 6 years, if it were invested at 2%
interest compounded annually? (Use the formula below and round your
answer to the nearest cent.)
If $450.46 were invested at 2% interest that is compounded annually, it would be worth after 6 years.
How is annual compound interest determined?The future value of a loan or investment may be determined using the formula FV = P*(1+R/N)(N*T), where FV is the future value, P is the original principal, R is the annual interest rate, N is the number of times interest is compounded annually, and T is the amount of time in years.
The formula to use isA = P(1+r/n)ⁿ
From the question, we have
P = $400
t = 6 year
r = 2%
r = 0.02
n = 1
Using the parameters, we haveA = P(1+r/n)ⁿ
A = 400(1+0.02/1)⁶
A = 400(1.02)⁶
A = $450.46.
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A recent survey of 250 citizens showed that 56% favored a renovation project for the local library. The survey had a margin of error of ±1.9%. If the town has 78,717 registered voters, what is the expected maximum number of voters who would support the project? Round the answer to the nearest whole number.
Maximum number of voters support renovation project is 44082.
What is margin of error?Margin of error provides a clearer understanding of what a survey’s estimate of a population characteristic means. it’s expressed with a plus and minus sign together, e.g. + or -1%.
A recent survey of 250 citizens showed that 56% favored a renovation project for the local library.
The survey had a margin of error of ±1.9%.
Total number of voters in the town = 78,717
56% of 78717= 44081.52 ⇒44082(rounded to nearest whole number)
Hence, maximum number of voters support renovation project is 44082.
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2 11/12x-5/6(x-2/5) what is the answer?.....
The required simplified value of the given expression is given as 11/12x² + 7/15x - 1/3.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Given expression,
= (11/12x-5/6) (x-2/5)
= 11/12x (x - 2/5) + 5/6 (x - 2/5)
= 11/12x² - 11/30x + 5/6x - 1/3
= 11/12x² + 7/15x - 1/3
Thus, the required simplified value of the given expression is given as 11/12x² + 7/15x - 1/3.
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What is the rule for the following geometric sequence? 64, -32, 16, -8...
Answer:
The rule for this geometric sequence is that the number is being halved each time. This can be expressed as a general rule as follows: an = a1 * (1/2)^n-1 , where a1 is the first term, n is the number of the term in the sequence, and an is the nth term. Therefore, the nth term of this sequence is an = 64 * (1/2)^n-1.
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2. Which group found the volume of a
triangular pyramid with a base area of 16
square inches?
The volume of a triangular pyramid can be found using V = 1/3AH where A = area of the triangle base, and H = height of the pyramid or the distance from the pyramid's base to the apex.
How to calculate the volumeA tetrahedron is a polyhedron in geometry that has four triangular faces, six straight edges, and four vertex corners. It is often referred to as a triangle pyramid. The simplest regular convex polyhedron is the tetrahedron. A triangle base, three triangular faces, and a common vertex make up the geometric shape known as a triangular pyramid.
The formula for calculating the volume of a triangular pyramid is Volume= 1/3 × Base area × Height. The dimensions required to find the surface area of a triangular pyramid are the side, height, and slant height.
Note that an overview was given as your information is incomplete.
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Ten percent of the 30 wim team member are new on the team. How many member are new?
A-3
B-36
C-10
D-6
Ten percent of the 30 team members which means that [tex]$\dfrac{10}{100} \cdot 30 = 3$[/tex] team members are new to the team. So, the answer is 6 new team members. Option D is correct.
To understand how we got the answer, we need to understand the concept of "percentage". The percentage is a way of showing a number as a fraction of 100. So, 10% means [tex]$\dfrac{10}{100}$[/tex].
Now, if we multiply this fraction by the total no. of team members, we'll find the no. of new team members.
[tex]$\dfrac{10}{100} \cdot 30 = 3$[/tex]
So, 10% of the 30 team members are equal to 3 team members, and that's why the answer is D-6.
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how to find perimeter of a triangular prism?
Answer:
Read below:
Step-by-step explanation:
To find the perimeter of a triangular prism, you need to add up the lengths of all three sides of the triangular base and all three sides of the rectangular lateral faces.
The formula for the perimeter of a triangular prism is P = a + b + c + 3l, where a, b, and c are the lengths of the sides of the triangular base, and l is the length of each of the rectangular lateral faces.
The perimeter of the triangular prism is solved
What is the volume of a prism?A three-dimensional solid object called a prism has two identical ends. It consists of equal cross-sections, flat faces, and identical bases. Without bases, the prism's faces are parallelograms or rectangles.
The volume of a prism is the product of its base area and height
Volume of Prism = B x h
where B = base area of prism
h = height of prism
Given data ,
To find the perimeter of a triangular prism, you need to add the lengths of all the edges. The edges of a triangular prism include the three sides of the base triangle and three additional edges connecting the corresponding vertices of the two base triangles.
So, the formula for finding the perimeter of a triangular prism is:
Perimeter = (Sum of the lengths of the three sides of the base triangle) + (Sum of the lengths of the three edges connecting the corresponding vertices of the two base triangles)
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Solve -3x + 7 = 2x -3. Write the solution as an integer or decimal.
x = __
Answer:
x = 2
Step-by-step explanation:
- 3x + 7 = 2x - 3 ( subtract 2x from both sides )
- 5x + 7 = - 3 ( subtract 7 from both sides )
- 5x = - 10 ( divide both sides by - 5 )
x = 2
find nonzero scalars and so that 4 (2−5) (4 4)=0 for every pair of vectors and . (express numbers in exact form. use symbolic notation and fractions where needed.)
The scalars 0 and any scalar with magnitude 0 satisfy the equation 4(2−5)(4,4) = 0 for every pair of vectors (4,4).
Vectors are mathematical objects that have both magnitude and direction. They can be multiplied by scalars, which are non-zero real numbers.
In this case, we are looking for non-zero scalars that satisfy the equation 4(2−5)(4,4)=0 for every pair of vectors (4,4).
To begin, we simplify the equation.
The expression 2−5 equals to -3, so
=> 4(-3)(4,4) = 4(-12,-12).
Next, we multiply 4 by -12 to get -48. The expression
=> 4(-12,-12) = (-48,-48).
Now, we need to find non-zero scalars that multiply (-48,-48) to give us a zero vector, which is a vector with magnitude of 0 and direction undefined.
Any scalar that satisfies this condition is a solution. For example, the scalar 0 satisfies this condition because
=> 0 * (-48,-48) = (0,0).
Additionally, any scalar with magnitude 0 will also satisfy this condition because the product of a vector and a scalar with magnitude 0 is always the zero vector.
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patrick wants to estimate the percentage of companies that use video ads. he asks a randomly selected group of 125 companies whether or not they use video ads. what is the statistic?
The percentage of companies that use video ads in the sample is the statistic.
A statistic is the measure of a particular characteristic in the sample which is nothing but a subset of the population. A singular or sample statistic is any quantity computed from values in a sample that is considered for a statistical purpose.Here, the concern is to estimate the percentage of companies that use video ads.
He took a sample of 125 companies to inquire whether or not they use video ads.
So, the percentage of companies that use video ads in the sample is the statistic.
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Let A= and B=.What value(s) of k , if any , will make AB = BA ? Select the correct choice below and. if necessary fill in the answer box within your choice. A. k = D (Use a comma to separate answers as needed.) B. No value of k will make AB = BA
The value of k = −8 for which AB = BA.
[tex]A = \left[\begin{array}{ccc}2&3\\-1&1\end{array}\right][/tex]
[tex]B = \left[\begin{array}{ccc}1&9\\-3&k\end{array}\right][/tex]
Now,
[tex]AB = \left[\begin{array}{ccc}2&3\\-1&1\end{array}\right] \left[\begin{array}{ccc}1&9\\-3&k\end{array}\right] = \left[\begin{array}{ccc}-7&18+3k\\2&-9-k\end{array}\right][/tex]
[tex]BA = \left[\begin{array}{ccc}1&9\\-3&k\end{array}\right] \left[\begin{array}{ccc}2&3\\-1&-1\end{array}\right] = \left[\begin{array}{ccc}-7&-6\\-6-k&-9-k\end{array}\right][/tex]
Thus, in order for AB = BA, we must have that
[tex]\left[\begin{array}{ccc}-7&18+3k\\2&-9-k\end{array}\right] = \left[\begin{array}{ccc}-7&-6\\-6-k&-9-k\end{array}\right][/tex]
Equate the values, and we get
18 + 3k = -6
3k = -6 - 18
3k = -24
k = -8
and 2 = -6 - k
k = -6 - 2
k = -8
Therefore we can say that it is easy to see that these equations are satisfied if and only if k = −8, and thus k = −8 is the (unique) value for which AB = BA.
--The given question is incomplete; the complete question is
"Let [tex]A = \left[\begin{array}{ccc}2&3\\-1&1\end{array}\right][/tex] and [tex]B = \left[\begin{array}{ccc}1&9\\-3&k\end{array}\right][/tex]. What value(s) of k, if any, will make AB = BA?"--
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When production volume exceeds the breakeven point, we can expecteda. profitb. fixed cost to decreasec. marginal revenue to decreased. a loss
When production volume exceeds the breakeven point, we can expect (a) profit.
The Breakeven Point is the level of production at which a company's total revenue equals its total expenses, and the company neither makes a profit nor incurs a loss.
When production volume exceeds the breakeven point, the company's total revenue exceeds its total expenses, which leads to a profit.
Option (b) : Fixed cost does not necessarily decrease when production volume exceeds the breakeven point.
Option (c) : Marginal revenue does not necessarily decrease when production volume exceeds the breakeven point.
Option (d) : A loss is not expected when production volume exceeds the breakeven point.
Therefore , If production volume is greater than the breakeven point, the company is expected to make a profit.
The given question is incomplete , the complete question is
When production volume exceeds the breakeven point, we can expected
(a) profit
(b) fixed cost to decrease
(c) marginal revenue to decrease
(d) a loss
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Can somebody PLEASE give me the right answer? I have been given 2 different answers 48 and 5.76 ALSO PLEASE SHOW THE WORK
Step-by-step explanation:
Not much work to show really. It's 36% of 16, which is 5.76
Evaluate the following expreion when x = 4 and y = 5 Fraction with x quared plu y cubed in the numerator and 2 plu x in the denominator
When x = 4 and y = 5, the expression evaluates to 23.5.
Evaluate x and y expressionThe expression is (x² + y³)/(2 + x). Plugging in x = 4 and y = 5, we get:
(4² + 5³)/(2 + 4) = 16 + 125/(2 + 4) = 141/(6) = 23.5.
So when x = 4 and y = 5, the expression evaluates to 23.5.
The method of substituting values for variables in an expression to find its numerical value is a fundamental concept in algebra and mathematics. When evaluating an expression, we simply replace the variables with the given values and perform the arithmetic operations according to the rules of arithmetic. This process allows us to find the numerical result of the expression for a specific set of inputs.
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What is the surface area of the cylinder with height 5 ft and radius 7 ft
Answer:
527.79
2πrh+2πr
2π 7• 5+2π7
Simplify each expreion. |6- 10| i don't know if it -4 ince it an abolute expreion
Absolute value of expression | 6 - 10 | can be simplified into 4.
The absolute value of a number is its distance from zero on the number line, regardless of its sign. It is represented by enclosing the number inside two vertical bars (| |) and is always a non-negative number.
In mathematical terms, the absolute value of x is defined as:
|x| =
a) x if x >= 0
b) -x if x < 0
So, for any number x, its absolute value is always positive or zero.
The expression |6 - 10| represents the absolute value of the difference between 6 and 10. To find the absolute value, we need to consider only the magnitude of the result and ignore its sign. In this case, the difference between 6 and 10 is -4, which is a negative number. Therefore, to find the absolute value, we need to take the absolute value of -4, which is 4. So, the simplified expression is:
|6 - 10| = 4
Hence the result for |6-10| is 4
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Overnight, the temperature in Chicago was just
–
7°F. But by the afternoon, the temperature had risen 9°F.
What was the temperature in Chicago that afternoon?
°F
The temperature during the afternoon in Chicago is 2°F
What is meant by the temperature of a place?
The average air temperature throughout a specific time period, typically a day, a month, or a year, as measured by a thermometer that has been properly exposed determines the temperature of a place.
Given,
The overnight temperature in Chicago = -7°F
The temperature that had risen during the afternoon = 9°F
From this data, we can see that there is no temperature change during the morning in Chicago.
That means the temperature remained constant throughout the night till the next morning.
Therefore the temperature during the afternoon in Chicago = -7+9 = 2°F.
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What is the minimum value for the function shown in the graph?
Answer:
2.5
Step-by-step explanation:
The minimum is the smallest value taken by the function.
An 8-ounce serving of apples contains 8% of your daily vitamin C. How many ounces of apples would you need to get 100% of our daily vitamin C?
Answer:
Step-by-step explanation:
You would need 100 ounces of apples to get 100% of your daily vitamin C.
We know that 8 ounces of apples contains 8% of your daily vitamin C.
To find out how many ounces of apples are needed to get 100% of your daily vitamin C, we can use the following proportion:
(8 ounces / 8%) = (x ounces / 100%)
where x represents the number of ounces needed for 100% of the daily vitamin C.
To solve for x, we can cross-multiply and divide:
8 ounces * 100% = 8% * x ounces
8 ounces * 100 = 8 * x ounces
800 = 8x
x = 100
Therefore, you would need 100 ounces of apples to get 100% of your daily vitamin C.
3/4 + x < 1/6.
Please help!!!!!
Original Equation:
[tex]\frac{3}{4} + x < \frac{1}{6}[/tex]
1) Subtract 3/4 from both sides:
[tex](\frac{3}{4}+x)-\frac{3}{4} < \frac{1}{6}-\frac{3}{4}[/tex]
2) Simplify:
[tex]x < \frac{1}{6}-\frac{3}{4}[/tex]
Find a common denominator for both fractions (I will use 12)
[tex]x < \frac{2}{12} -\frac{9}{12}[/tex]
Simplify:
[tex]x < \frac{-7}{12}[/tex]
We cannot simplify the expression anymore, therefore this is the answer!
[tex]3x-1\ \textgreater \ 2\\[/tex]
The solution to the inequality is x > 1
How to determine the solution to the inequalityFrom the question, we have the following parameters that can be used in our computation:
3x - 1 > 2
Subtract -1 from both sides of the expression
So, we have
3x > 3
Divide both sides by 3
This gives
x > 1
Hence, the solution is x > 1
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A cliff stands 70 ft tall with the lake water reaching 50 ft away from the cliff.
Question: What is the angle of depression from the top of the cliff to the edge of the water. PLEASE HELP ME WITH THIS.
The angle of depression from the top of the cliff to the edge of the water
is 54.46°.
What are trigonometric functions?Trigonometric functions, often known as circular functions, are, in a nutshell, the functions of the angle of a triangle. This indicates that the relationship between a triangle's angles and sides is provided by these trig functions. The basic trigonometric functions are sine, cosine, tangent, cotangent, secant, and cosecant.
Given the height of the cliff = 70 feet,
the lake water reaches 50 ft away from the cliff.
distance from the base of the cliff to lake water = 50 feet
the angle of depression is found by tanФ
where Ф = angle of depression
tanФ = perpendicular/base
perpendicular = height = 70 feet
base= 50 feet
tanФ = 70/50
Ф = tan⁻¹(1.4)
Ф = 54.46°
Hence angle of depression is 54.46°.
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Can someone help me with this aleks question
your friend claims that she has 30 coins containing nickels dimes and quarters the total value of the 30 coins is $3 there are twice as many nickels as there are dimes is your friend correct explain the reasoning
The stated combination of coins is not possible as the number of quarters are highly more than the number of dimes and nickels.
Let the number of dimes be x. So, the number of an nickels will be 2x. The number of quarters will be (30 - 3x). As per the known information, the one nickel is 0.05 dollars, one dime is 0.1 dollars and one quarter is with 0.25 dollars.
Now forming the expression -
x×0.1 + 2x×0.05 + (30-3x)×0.25 = 3
Performing multiplication on Left Hand Side of the equation
0.1x + 0.1x + 7.5 - 0.75x = 3
Performing addition on Left Hand Side of the equation
0.2x - 0.75x = 3 - 7.5
On subtraction we will find the value on Left Hand Side will be negative. Thus, the stated combination is not possible.
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Use the integers that are closest to the number in the middle.< 48
Integers include zero, a positive natural number, and a negative integer represented by a minus sign, and the missing integers in the given situation are 5 < √48 < 7.
What are integers?Zero, a positive natural number, or a negative integer denoted by a minus sign are all examples of integers.
The inverse additives of the equivalent positive numbers are the negative numbers.
The boldface Z is a common mathematical symbol for the set of integers.
An integer, pronounced "IN-tuh-jer," is a whole number that can be positive, negative, or zero and is not a fraction.
Integer examples include -5, 1, 5, 8, 97, and 3,043. 1.43, 1 3/4, 3.14, and other numbers that are not integers are some examples.
So, we have:
__ < √48 < __
We know that:
√48 = 6.92
Then,
5 < √48 < 7
Therefore, integers include zero, a positive natural number, and a negative integer represented by a minus sign, and the missing integers in the given situation are 5 < √48 < 7.
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Complete question:
Use the integers that are closest to the number in the middle.
__ < √48 < __.
Question 2 of 10
Nina is careful to avoid oversharing. She makes sure what she does share is
accurate before reposting. What recommended behavior is Nina practicing?
The recommended behavior that Nina is practicing is ethical social media usage.
What is ethical social media usage ?Ethical social media usage refers to responsible and respectful behavior when using social media platforms. This includes respecting others' privacy, avoiding the spread of false information, not engaging in cyberbullying or harassment, and being mindful of one's own digital footprint. This is what Nina is doing by making sure what she shares is accurate.
Additionally, ethical social media usage also involves being transparent about one's identity and intentions, and recognizing the power of one's words and actions in the digital world.
.
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The drama club i elling ticket to their play to raie money for the how' expene. Each tudent ticket ell for $4. 50 and each adult ticket ell for $8. The auditorium can hold no more than 84 people. The drama club mut make at leat $560 from ticket ale to cover the how' cot. If 29 tudent ticket were old, determine all poible value for the number of adult ticket that the drama club mut ell in order to meet the how' expene. Your anwer hould be a comma eparated lit of value. If there are no poible olution, ubmit an empty anwer
If 29 student tickets were sold, then all possible values for the number of adult tickets that the drama club must sell in order to meet the show's expenses are 54 and 55 .
the price for each student ticket is $4.50 and adult is $8 ;
The number of people auditorium can hold is = no more than 84 people ;
the number of children tickets sold is = 29 tickets ;
Let "x" be number of adult tickets sold.
The total revenue from ticket sales = $4.50×29 + $8×(x)
⇒ $130.5 + $8x.
The total revenue must be at least $560,
So , $130.5 + $8x ≥ $560.
Subtracting $130.5 from both sides, we get $8x ≥ $429.5 ;
Dividing both sides by 8, we get x ≥ 53.69 ;
Since the number of adult tickets sold must be an integer, the minimum number of adult tickets that must be sold is 54.
The maximum number of people allowed in the auditorium is 84, so the maximum number of adult tickets that can be sold is 84 - 29 = 55.
Therefore, the possible values for the number of adult tickets that must be sold are 54, 55.
The given question is incomplete , the complete question is
The drama club is selling tickets to their play to raise money for the show's expenses. Each student ticket sells for $4.50 and each adult ticket sells for $8. The auditorium can hold no more than 84 people. The drama club must make at least $560 from ticket sales to cover the show's costs. If 29 student tickets were sold, determine all possible values for the number of adult tickets that the drama club must sell in order to meet the show's expenses.
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Donald is studying the eating habits of all students attending his school. He samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. He then collects data from the sample. Which type of sampling is used?
A stratified random sample size is being used by Donald. He is segmenting the population into groups and choosing a representative sample of pupils from each category at random.
To examine the eating patterns of all pupils attending his school, Donald is utilising stratified random sampling. In this kind of sampling, the population is divided into strata, or groups, and a proportionate number of people from each category are randomly chosen to make up the sample. To make sure the sample is representative of the total community, Donald in this instance is grouping the pupils by grade level. Then he gathers information from the sample in order to make generalisations about the eating patterns of all the pupils enrolled in his school. A representative sample can be obtained and reliable population inferences can be made using stratified random sampling
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how does the hawthorne effect materialize in health services research, and what impact does this have on research objectivity?
The Hawthorne Effect can be mitigated by utilizing research designs that obscure the presence of the researcher, such as randomized controlled trials and naturalistic observation studies.
It is often seen in studies involving health services research, where individuals being studied change their behavior due to the presence of the researcher, or the knowledge that they are being observed. This can have an impact on research objectivity, as the behavior of the subjects might not be representative of the behavior they would normally exhibit while not being observed.
The Hawthorne Effect can be mitigated by utilizing research designs that obscure the presence of the researcher, such as randomized controlled trials and naturalistic observation studies. Additionally, researchers can also use methods such as questionnaires and interviews to gain insight into the experiences and behavior of the research subjects, in order to better understand the impact that the Hawthorne Effect might have on the research results.
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