Answer:
A. $6,100,000
B. $2,100,000
C. $943,000
Step-by-step explanation:
A. CD Sales:
CDs: 1.22 million × $5 = $6,100,000
B. downloads
Downloads: 2.1 million × $1 = $2,100,000
C.
11.5% of ($6,100,000 + $2,100,000) =
= 0.115 × $8,200,000
= $943,000
For a result to be considered _____, the chances of its occurring as a result of random error are often less than 5 percent.
For a result to be considered significant, the chances of its occurring as a result of random error are often less than 5 percent.
What is Random error?A coincidental discrepancy between the observed and true values of anything is known as a random error (e.g., a researcher misreading a weighing scale records an incorrect measurement).
It's not always a mistake when there is random error; rather, it happens when measurements are made. Even when you measure the same item repeatedly, there will always be some variation in your results because to changes in the environment, the instrument, or your own perceptions.
Your measurements are equally likely to be greater or lower than the genuine values due to random error, which has unexpected effects.
According to the given data,
For a result to be considered significant, the chances of its occurring as a result of random error are often less than 5 percent.
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Chase ordered a set of beads. He received 4,000 beads in all. 3,000 of the beads were green. What percentage of the beads were green?
75% of the beads are green in color.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given that Chase ordered a set of beads
He received 4,000 beads in all.
3,000 of the beads were green.
We need to find the percentage of the beads were green of 4000.
x/100×4000=3000
40x=3000
Divide both sides by 40
x=75%
Hence, 75% of the beads are green in color.
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a=h(b+c) solve for c
Answer:
\(c=\frac{a}{h}-b\)Explanation:
Given the equation:
\(a=h(b+c)\)we want to make c the subject of formula;
let us divide both sides by h;
\(\begin{gathered} \frac{a}{h}=\frac{h(b+c)}{h} \\ \frac{a}{h}=b+c \end{gathered}\)Then let us subtract b from both sides;
\(\begin{gathered} \frac{a}{h}-b=b-b+c \\ \frac{a}{h}-b=c \\ c=\frac{a}{h}-b \end{gathered}\)Therefore, making c the subject of formula we have;
\(c=\frac{a}{h}-b\)30 Points cuz I need help ASAP
Answer:
the answer is option 1
Step-by-step explanation:
the negative angle => a quarter round angle (clockwise) = ¼ x ( -360°) = -90°
and
the positive angle => a full round angle + 270° = (360°)+270°
= 630°
Answer:
correct answer is -90 and 630
Step-by-step explanation:
If 5 cards were picked at random from a deck of 52 cards, find P(Exactly 2 are hearts)? Hint: there are 13 hearts in a 52 card deck.
In a 52-card deck, there are 13 hearts. To calculate the probabilty of picking 2 hearts from a deck of 52 cards, the following steps must be taken:
Step 1: Find the number of possible combinations when two hearts are selected from a deck of 13 hearts. There are 13C2 or 78 combinations for selecting 2 hearts from a 13-card deck.
Step 2: Find the number of combinations when three non-hearts are selected from a deck of 39 non-hearts. There are 39C3 or 9139 combinations for selecting three non-hearts from a 39-card deck.
Step 3: Use the multiplication principle to calculate the total number of ways in which two hearts and three non-hearts can be picked from a 52-card deck: 78 * 9139 = 712,926.
Step 4: Find the total number of ways in which five cards can be picked from a 52-card deck. There are 52C5 or 2,598,960 ways to choose five cards from a deck of 52 cards.
Step 5: Calculate the answer using the formula: P(Exactly 2 hearts) = (78 * 9139) / 2,598,960
Step 6: Simplify: P(Exactly 2 hearts) = 2113 / 3718
Therefore, the answer is P(Exactly 2 hearts) = 2113 / 3718.
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Which term can be added to both sides of the equation
by completing the square?
+
a
a so that the equation can be solved
2
O
2a
O
ca.
Help please
Step-by-step explanation:
my instagram account bdq.frk follow please
a and b are positive integers and a-b=2 ... Evaluate the following:
a) 2^a/2^b
b) 5^a/5^b
c) 4^0.5a/2^b
Answer:
Step-by-step explanation:
a) 2^{a-b}
b) 5^{a-b}
c) \frac{0.5a}{2^b}
Find the slope and y-intercept of the line. Graph the line.
Answer:
Graphing the equation we have;
Explanation:
Given the equation;
\(x+5y=40\)the slope of the line can be derived by expressing the equation in slope-intercept form;
\(\begin{gathered} 5y=-x+40 \\ y=-\frac{1}{5}x+\frac{40}{5} \\ y=-\frac{1}{5}x+8 \end{gathered}\)So, the slope and y-intercept are;
\(\begin{gathered} \text{slope m = -}\frac{1}{5} \\ y-\text{intercept b = 8} \end{gathered}\)to graph the equation, let us find the x-intercept;
\(\begin{gathered} at\text{ y=0;} \\ x+5y=40 \\ x+0=40 \\ x=40 \\ (40,0) \\ at\text{ x=0;} \\ (0,8) \end{gathered}\)Graphing the equation we have;
Other points on the graph includes;
\(\begin{gathered} at\text{ x=10}; \\ y=-\frac{1}{5}(10)+8=-2+8=6 \\ (10,6) \\ at\text{ x=20;} \\ y=-\frac{1}{5}(20)+8=-4+8=4 \\ (20,4) \end{gathered}\)
At the end of 1st Quarter of 2009 the median price of a single-family home in Charleston/No. Charleston was $184,990. Single-family home prices in Charleston/No. Charleston decreased from the 1st Qtr of 2008 by 8.15%. NOTE: Depreciation means a negative value for r. (a). Estimate the median price of a single-family home in the 1st Qtr of 2008.
(b). If the median price of a single-family home falls at the same rate for the next 2 years, estimate the median price of a single-family home in the 1st Qtr of 2011.
The estimated median price of a single-family home in Charleston/No. Charleston in the 1st Quarter of 2008 is $201,048. If the median price continues to decrease at the same rate for the next two years, the estimated median price of a single-family home in the 1st Quarter of 2011 would be $144,458.
(a) To estimate the median price of a single-family home in the 1st Quarter of 2008, we need to calculate the original price before the 8.15% decrease. Let's assume the original price was P. The price after the decrease can be calculated as P - 8.15% of P, which translates to P - (0.0815 * P) = P(1 - 0.0815). Given that the end of 1st Quarter of 2009 median price was $184,990, we can set up the equation as $184,990 = P(1 - 0.0815) and solve for P. This gives us P ≈ $201,048 as the estimated median price of a single-family home in the 1st Quarter of 2008.
(b) If the median price of a single-family home falls at the same rate for the next two years, we can calculate the price for the 1st Quarter of 2011 using the estimated median price from the 1st Quarter of 2009. Starting with the median price of $184,990, we need to apply an 8.15% decrease for two consecutive years. After the first year, the price would be $184,990 - (0.0815 * $184,990) = $169,805.95. Applying the same percentage decrease for the second year, the price would be $169,805.95 - (0.0815 * $169,805.95) = $156,012.32. Therefore, the estimated median price of a single-family home in the 1st Quarter of 2011 would be approximately $144,458.
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unlike correlation, the only way to demonstrate causation is to conduct a(n):
The answer to your question is that the only way to demonstrate causation is to conduct a controlled experiment. This domain involves manipulating one variable and measuring the effect it has on another variable while holding all other variables constant.
correlation simply shows a relationship between two variables, but it doesn't prove that one variable causes the other. There could be other factors at play that are influencing both variables. For example, there may be a correlation between ice cream sales and crime rates, but this doesn't mean that ice cream causes crime or vice versa. It's possible that a third variable, such as temperature, is influencing both ice cream sales and crime rates.
further into the complexities of establishing causation, such as the need for random assignment in experimental studies, the importance of replicating findings, and the challenges of applying experimental findings to real-world situations. However, the key point is that a controlled experiment is the most reliable method for establishing a causal relationship between variables.
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suppose you paid $4 for a bet on a horse and, as a result, you will win $110 if your horse wins a given race. find the expected value of the bet (in $) if the odds that the horse will win are 3 to 12.
The expected value of the bet if the odds that the horse will win are 3 to 12 is $18.8
What is expected value?
Expected value is the predictive value of all the possibilities that occur by multiplying the value by the probability.
Winning probability = odds / total outcomes
= 3 / (3 + 12)
= 3 / 15
= 0.2
Now, we need to calculate expected value.
= winning probability x amount won - losing probability x amount lost
= 0.2 x 110 - (1 - 0.2) x 4
= 22 - 3.2
= 18.8
Thus, the expected value of the bet if the odds that the horse will win are 3 to 12 is $18.8
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What is the solution set of: - (9x – 4) + 12 + 18x > 79
Answer:
x>7
Step-by-step explanation:
-9x + 4 + 12 + 18x >79
9x+16>79
9x>79 - 16
9x > 63
x>7
When one increases the confidence level (1-α), say from 0.90 to 0.95, what happens to the width of the confidence interval? a. It stays the same b. It becomes wider c. It becomes narrower
Step-by-step explanation:
A higher confidence interval means less power which in turns means a smaller rejection religion.So our confidence interval would become wider.
Note that the Unicode for character A is 65. The expression "A" + 1 evaluates to ________.
A. 66
B. B
C. A1
D. Illegal expression
Unicode value of 66, which is the letter "B". Therefore, the correct answer to this question is option B: "B".
The terms you mentioned are related to the Unicode character encoding standard and the concept of evaluating expressions. When discussing the expression "A" + 1, it's essential to note that the Unicode value for the character "A" is 65.
The expression "A" + 1 is attempting to add a numerical value (1) to a character ("A"). In many programming languages, this operation is allowed, and the result would be based on the Unicode values of the characters involved. Since the Unicode value for "A" is 65, adding 1 to it would result in a new Unicode value of 66. Consequently, the evaluated expression would correspond to the character with the Unicode value of 66, which is the letter "B". Therefore, the correct answer to this question is option B: "B".
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3 divied \frac{3}{4}[/
Answer:
The answer is 4
Step-by-step explanation:
I did it and got it right
Please mark me as brainly
Please leave a 5 star review
Have a good day!
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Step 1: Exploring the Pythagorean Theorem
On the southeast corner of Millennium Park, there is a garden walk. It is marked off in red in the drawing below. Side C, the hypotenuse of the triangle, shows the row along which flowers will be planted.
If side a measures 90 feet and side b measures 120 feet, how many feet of flowers will be planted along side c, the hypotenuse of the triangle? Show your work and explain your reasoning. (2 points)
The length of the hypotenuse of the right triangle is 150 feet.
The Pythagorean theorem is a formula that relates the sides of a right triangle. It states that the square of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. Mathematically, it can be written as c² = a² + b².
Using the given values of a = 90 feet and b = 120 feet, we can plug them into the Pythagorean theorem to find c.
c² = a² + b² c² = (90)² + (120)² c² = 8100 + 14400 c² = 22500
To solve for c, we take the square root of both sides of the equation:
c = √(22500) c = 150
This means that along side c, which is the row along which flowers will be planted, there will be 150 feet of flowers planted.
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What is the first step in solving the following systrm of equations?
3x + y = 23 and 8x + 2y = 23
A. Substitute the value of y from one equation into the other equation
B. Solve the first equation for y
C. Subtract the second equation from the first equation
D. Substitute the value of x from one equation into the other equation
Hello!
{3x + y = 23 _ {y = 23 - 3x
{8x + 2y = 23 {8x + 2(23 - 3x)
The answer is A.
Good luck! :)
What is the area of ∆AOB?
The Area of Rhombus is 97.5 cm².
What is area of Rhombus?The area of a rhombus is equal to half the product of the lengths of the diagonals. The formula to calculate the area of a rhombus using diagonals is given as, Area = (a × b )/2 where, a and b are the diagonals of the rhombus.
Given:
As, diagonals of rhombus bisect perpendicularly.
so, In triangle OAD using Pythagoras theorem
AD² = OD² + OA²
10² = 7.8² + OD²
OD= 6.25 cm
So, length of BD = 2 x 6.25 = 12.5 cm
Now, area of Rhombus = 1/2 x a x b
= 1/2 x 15.6 x 12.5
= 97.5 cm².
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what is the solution set for the quadratic equation
\(x {}^{2} - 3x - 6\)
HHHHHHHHHHHHHHHHHHEEEEEEEEEEELLLLLLLLLLLLLLPPPPPPPPPPPPPP
Answer:
B.
Step-by-step explanation:
y = 3/4x + 2 slope: 3/4
perpendicular line slope: - 4/3
A teacher surveys all of the students in the school to find out each student's favorite class. The bar graph shows the results of his survey. How many more students prefer Math than prefer Science? Use the bar graph to answer the question.
Answer:
14
Step-by-step explanation:
16 students prefer maths and 2 students prefer science so
16-2=14
Suppose you play a game where you toss three fair coins. If you get three tails, you win $10. Otherwise, you lose $2. If you were to play this game 15 times, how much would you expect to gain or lose?
Do not round until the final answer.
Enter an expected loss as a negative number.
The expected gain or loss from playing the game 15 times is -$75.00, indicating an expected loss of $75.00.
To determine the expected gain or loss from playing the game 15 times, we need to calculate the expected value.
The probability of getting three tails (winning) in a single coin toss is (1/2) * (1/2) * (1/2) = 1/8, since each coin toss is independent and has a 1/2 probability of landing tails.
The probability of losing in a single coin toss is 1 - 1/8 = 7/8.
If we play the game 15 times, the expected number of wins is (1/8) * 15 = 15/8, and the expected number of losses is (7/8) * 15 = 105/8.
The amount gained from winning is $10, and the amount lost from losing is $2.
Therefore, the expected gain or loss can be calculated as follows:
Expected gain or loss = (Expected number of wins * Amount gained) - (Expected number of losses * Amount lost)
= (15/8 * $10) - (105/8 * $2)
Simplifying this expression, we find:
Expected gain or loss = $187.50 - $262.50
= -$75.00
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A computer chip company finds the experimental probability of manufacturing a defective computer chip is 1/3 how many defective computer chips are likely to be in a batch of 735 computer chips
Answer:
There are 245 expected defective chips in the batch
Step-by-step explanation:
From the question, we have that in a batch of computer chips, it is expected that a third is defective
Now, in this present batch, there are 735 chips
The number of defective chips is a third of this
Thus, we have the number of defective chips as;
1/3 * 735 = 245 chips
if you borrow $500 for 4 years at an annual interest rate of 6 years how much will you pay altogether
The amount will be after 4 years at interest rate of 6%, $624.76
To calculate the total amount you will pay after borrowing $500 for 4 years at an annual interest rate of 6%, you can use the formula for compound interest:
A = P x (1 + r/n)^(nt)
where:
A is the total amount,
P is the principal amount (the initial amount borrowed),
r is the annual interest rate as a decimal,
n is the number of times interest is compounded per year,
t is the number of years the money is borrowed for.
In this case, P = $500, r = 6%, n = 1 and t = 4.
So, the formula becomes:
A = $500 x (1 + 0.06/1)^(1 x 4)
A = $500 x (1.06)⁴
A = $500 x 1.249536
A = $624.76
Therefore, you will pay a total of $624.76 after borrowing $500 for 4 years at an annual interest rate of 6%.
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helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answer:
its A.)
Step-by-step explanation:
becuase it is
The Number of Hispanics (Latinos) in the United States
Consider the population of Hispanic (Latino) people in the United States, according to the 2010 US Census. Look at the data in this spreadsheet. Examine the data for the 2010 US Census.
In addition look at these resources before you move on to the task:
US Census data
US Census regions
Part A
How do the columns titled Number and % of Total Population relate to the column titled Total?
Space used (includes formatting): 0 / 15000
Part B
Go to your Math Tools and open the Data Plot. Create a histogram of the state data in the column titled % of Total Population for 2010. (Note that you can copy a column of data from the spreadsheet and paste it into the histogram data set.) Set useful limits and intervals and label the histogram appropriately. Export an image of the histogram, and insert it below.
Space used (includes formatting): 0 / 15000
Part C
Go to your Math Tools and open the Data Plot. Create a box plot of the state data in the column titled % of Total Population. (You can copy a column of data from the spreadsheet and paste it into the box plot data set.) Be sure to add appropriate labels to your box plot. Export an image of your box plot, and insert it below.
Space used (includes formatting): 0 / 15000
Part D
Describe the spread, shape, and skewness, if any, of the graph.
Space used (includes formatting): 0 / 15000
Part E
What information about central tendencies can you determine from the histogram and the box plot?
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Part F
Outliers are generally considered to be points that are more than 1.5 × (interquartile range) below Q1 or above Q3. What are the minimum and maximum values for the box plot once you exclude outliers? Based on your box plot, how many outliers do you have?
Space used (includes formatting): 0 / 15000
Part G
Which states are represented by the outlier data? What do these states have in common that might contribute to making them outliers?
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Part H
According to the US Census data, the Hispanic (Latino) population of the United States as a whole is 16.3% of the total 2010 US population (as shown in cell G5). Where would this percentage fit into the list of the distribution of the individual states on your latest box plot? Does it seem surprising that it would fit there? How might you explain this situation?
Space used (includes formatting): 0 / 15000
Answer:
Hispanics Account for More than Half of Nation's Growth in ...
The 2010 Census counted 50.5 million Hispanics in the United States, making up 16.3% of the total population. The nation's Latino population, which was 35.3 million in 2000, grew 43% over the decade.
Step-by-step explanation:
This answer provides step by step guidance to understanding a data set comprising of the Hispanic population in the US. It guides through the interpretation of the provided spreadsheet, the creation and interpretation of histograms and box plots, and the identification and analysis of outliers.
Explanation:Since I'm not able to interact directly with your provided spreadsheet and tools, I'll guide you along the process. On Brainly, tutors can't provide images or interactive tools.
Part A
The 'Number' column represents the actual count of Hispanic/Latino population in a given location. The '% of Total Population' column represents the proportion of the Hispanic/Latino population against the total population in the same location. The 'Total' column, in this context, likely represents the total population of a given location.
Part B & C
For histogram and box plot creations, first copy the column of data you need, then paste it into the respective tool. Make sure to set meaningful limits and label your graphics appropriately. These visuals will help in understanding the distribution of the data.
Part D
Analyze your plots. Look for whether the data is symmetric (normal), skewed left (negative) or skewed right (positive). 'Spread' refers to the variability in your data, a key indicator might be the difference between maximum and minimum values discussed in Part B.
Part E
Central tendencies can be understood as the 'middle' or 'average' of the data. In a histogram, look for peaks, which represent the mode of the distribution. For a box plot, calculate the median (Q2), essentially the mid-point of the plotted data.
Part F & G
To find min/max values excluding outliers, look for the smallest/largest value that falls within the range defined by Q1 - 1.5*(IQR) and Q3 + 1.5*(IQR). Outliers are the data points outside this range. Check back to see which states these outliers correspond to.
Part H
Compare the given 16.3% to your box plot. Depending on where it fits within the plot's quartiles, it may or may not be surprising due to differing state-level proportions vs the overall distribution. Explanation might involve immigration, cultural hubs, or state-specific policies among others.
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calculate the equivalent resistance in ohms of the following circuit : 18100 11470 18.1 11.5
The equivalent resistance of the circuit is d)11.5 ohms. So, correct option is d.
We know very well that net resistance when resistors are connected in parallel and net resistance when resistors are connected in series is different.
So, we can see that three 4.7kΩ are connected in parallel.
So, using formula of net resistance in parallel
=>1/Rₙ=(1/R₁)+(1/R₂)+(1/R₃)
Therefore,1/Rₙ=1/4.7+(1/4.7)+(1/4.7)
=>1/Rₙ=3/4.7kΩ
=>Rₙ=4.7/3kΩ
=>Rₙ=1.5kΩ
Now, we have net resistance of three resistors.
Now, remaining three resistors are now connected in series
So, using formula of net resistance when resistors are connected in series=Rₙ=R₁+R₂+R₃
So, three resistors have resistance 4.7kΩ,1.5kΩ,5.2kΩ respectively
Therefore, Rₙ=4.7+1.5+5.2=11.5kΩ.
Hence, equivalent resistance is d)11.5kΩ.
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(Complete question) is:
Calculate the equivalent resistance in ohms of the following circuit : a)18100kΩ
b)11470kΩ
c)18.1kΩ
d)11.5kΩ
Goode Manufacturing pays Betty Robert's a $1770 monthly salary plus a 14% commission on merchandise she sells each month. assume Betty's sales were $99,200 for last month. calculate the following amounts: 1.amount of commission? gross pay?
Given:
Betty's monthly salary = $1770
Commision on sales = 14%
Betty sales for last month = $99,200
1. The amount of commission is 14% of $99,200.
Therefore, we have:
\(\frac{14}{100}\times99200=0.14\times99200=\text{ \$13888}\)The amount of commission is $13,888
2. The gross pay.
Gross pay is the amount Betty receives before taxes and deductions.
Gross pay = Salary + Commission
Thus, the gross pay is:
$13888 + $1770 = $15,658
ANSWER:
1. Commission = $13,888
2. Gross pay = $15,658
Determine whether or not the function is one-to-one, and if it is, determine its inverse function
Determine the conditions for when a function has an inverse. Use the horizontal line test to recognize when a function is one-to-one. Find the inverse of a given function.
What is a horizontal line test?It is simple to establish whether the inverse of a function is also a function using the horizontal line test.
Because it fails the vertical line test, a function's inverse might not actually be a function.
Graph of the line
f\left( x \right) = - x + 2
f(x)=−x+2.
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In need of help.. ... . . .
Answer: Circle 3
Step-by-step explanation:
There are p plates, and 4 are unable to be used, so the expression is p - 4 = Circle 3
Answer:
c
Step-by-step explanation:
Because the number of plates on the table minus 4 saved for dessert mean p-4