Answers
Answer:
B
Step-by-step explanation:
Since the function calls for you subtracting 1 from the input to the output, B makes sense.
Answer:
B is the correct answer bc
4-1=3
3-1=2
9-1=8
Related Questions
Using the assumptions provided and the formula below, what would be the recommended sample size (n) for your study? • Assume that the probability of the desired response (p) is equal to the probability of the undesired response (g). • Assume that the client would like to have 95% confidence that the study will provide the true (population) value of the variable of interest. • Assume that the client would like the outcome to include a range with a sample error of +/-10%. Formula: n=z2(pq)/e(you may also find this formula on slide 10 in the deck for this module)
Answers
To calculate the recommended sample size (n) for your study, you can use the formula n = z²(pq)/e², where z represents the z-score for the desired confidence level, p represents the probability of the desired response, q represents the probability of the undesired response, and e represents the acceptable sample error.
Given the assumptions that p = q and the client wants a 95% confidence level with a sample error of +/-10%, we can plug in the values as follows:
1. For a 95% confidence level, the z-score (z) is 1.96.
2. Since p = q, we can assume p = 0.5 and q = 0.5 (because p + q = 1).
3. The acceptable sample error (e) is 10%, or 0.1 in decimal form.
Now, plug these values into the formula: n = (1.96²)(0.5)(0.5)/(0.1²).
Step-by-step calculation:
n = (3.8416)(0.25)/0.01
n = 0.9604/0.01
n ≈ 96.04
The recommended sample size (n) for your study, based on the provided assumptions and formula, is approximately 96 participants.
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I NEED HELP WITH 2 QUESTIONSS
1.What is the mean change in the forecasted low temperatures over the next 7 days? Remember, this can be found by averaging the values in the Difference column for the low temperatures. If your answer is not an integer, explain what two integers your answer is between.
LOW TEMPTURES:
WEDNESDAY-79
THURSDAY- 79
FRIDAY- 73
SATURDAY- 73
SUNDAY - 73
MONDAY- 73
TUESDAY- 75
2. What is the mean change in the forecasted high temperatures over the next 7 days? Remember, this can be found by averaging the values in the Difference column for the high temperatures. Show your work and steps. If your answer is not an integer, explain what two integers your answer is between.
WEDNESDAY- 88
THURSDAY- 87
FRIDAY- 90
SATURDAY- 90
SUNDAY- 86
MONDAY- 88
TUESDAY-86
PLEASE ANSWER FAST!!!
Answers
2. Between 87 and 88
Phil is riding his bike. He rides 25 miles in 2 hours, 37.5 miles in 3 hours, and 50
miles in 4 hours. Find the constant of proportipnality and write an equation to
describe the situation. Let x represent the number of hours.
The equation that describes the relationship is y =
Answers
The constant of proportionality (known as "speed" in this case) is 12.5 miles per hour.
The equation is
d
=
12.5
×
t
Explanation:
To find the constant of proportionality, divide one value in each pair by the other. If this relationship is a true direct proportionality , when you repeat these for every pair, your will come up with the same value:
For example
25
miles
÷
2
hours
=
12.5
miles
hour
A direct proportionality will always result in an equation that resembles this:
y
=
k
x
where
y
and
x
are the related quantities and
k
is the constant of proportionality. If you draw a graph using the values you have, the graph will show a straight line the passes through the origin. The slope of this line will be the constant of proportionality. (And if the values given are real physical quantities, this constant will contain important information about the situation you are studying!)
In 1899, the first Green Jacket Golf Championship was held. The winner's prize money was $23 In 2020 , the winner's check was $2,670,000. a. What was the annual percentage increase in the winner's check over this period? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. b. If the winner's prize increases at the same rate, what will it be in 2055 ? Note: Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 1,234,567.89.
Answers
A) annual percentage increase in the winner's check over this period is approximately 11595652.17%.
B) if the winner's prize increases at the same rate, it will be approximately $3,651,682,684.48 in 2055.
a. To find the annual percentage increase in the winner's check over this period, we can use the formula:
Annual Percentage Increase = ((Final Value - Initial Value) / Initial Value) * 100
First, let's calculate the annual percentage increase in the winner's check from 1899 to 2020:
Initial Value = $23
Final Value = $2,670,000
Annual Percentage Increase = (($2,670,000 - $23) / $23) * 100
Now, we can calculate this value using the given formula:
Annual Percentage Increase = ((2670000 - 23) / 23) * 100 = 11595652.17%
Therefore, the annual percentage increase in the winner's check over this period is approximately 11595652.17%.
b. If the winner's prize increases at the same rate, we can use the annual percentage increase to calculate the prize money in 2055. Since we know the prize money in 2020 ($2,670,000), we can use the formula:
Future Value = Initial Value * (1 + (Annual Percentage Increase / 100))^n
Where:
Initial Value = $2,670,000
Annual Percentage Increase = 11595652.17%
n = number of years between 2020 and 2055 (2055 - 2020 = 35)
Now, let's calculate the prize money in 2055 using the given formula:
Future Value = $2,670,000 * (1 + (11595652.17 / 100))^35
Calculating this value, we find:
Future Value = $2,670,000 * (1 + 11595652.17 / 100)^35 ≈ $3,651,682,684.48
Therefore, if the winner's prize increases at the same rate, it will be approximately $3,651,682,684.48 in 2055.
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help me with is please the question is in the picture
Answers
$1.60 x .10 = .16
1.60 - .16 = $1.44
so
1.44 x 4 = $5.76
1.44 / 2 = .72
$5.76 + .72 = $6.48
so your answer is $6.48 [B]
Answer: the answer is b or 6.48
Step-by-step explanation:
3. The decimal expansion of 13/625 will terminate
after how many places of decimal?
(a) 1
(b) 2
(c) 3
(d) 4
Answers
The decimal expansion of the given fraction is 0.0208. Therefore, the correct answer is option D.
The given fraction is 13/625.
Decimals are one of the types of numbers, which has a whole number and the fractional part separated by a decimal point.
Here, the decimal expansion is 13/625 = 0.0208
So, the number of places of decimal are 4.
Therefore, the correct answer is option D.
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“Joe borrowed $25 from his dad. He borrowed $15 later in the week. How much money does he owe his dad ? “
would it be
$40
or...
$-40
???
Answers
Answer:
hey mate ,
thanks for the question . your answer would be $ -40 .
Step-by-step explanation:
now let me explain :
when we take something from others . it is expressed as negative . ( - )
so , when we borrow , we are taking something from them .
so we will express the number in its negative form .
Here is a list of number state the median
-3, 1 , -12, 10, 1, 16,19 ,4,16,2
Answers
The median of the list is 3
We must arrange the numbers in this list from smallest to largest in order to determine the median:
-12, -3, 1, 1, 2, 4, 10, 16, 16, 19
The middle value of a dataset is represented by the median, a statistical measure. Half of the values in the dataset are greater than or equal to the median, and the other half are less than or equal to the median. This value is what divides the dataset into two halves.
A dataset's values must first be arranged in either ascending or descending order before the median can be determined. The median is simply the middle value when the dataset has an odd number of values. The median is the average of the two middle values when the dataset has an even number of values.
Think about the dataset 3, 5, 7, 9, and 11 as an example. This dataset's median value is 7, as
The median is the average of the two middle numbers in this list of ten numbers. The two middle numbers in this instance are 2 and 4. The median is thus:
median is equal to (3 / (2 + 4)
As a result, three is the list's median.
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Can 0.43721… be a fraction
Answers
Answer:
43721/100000
Step-by-step explanation:
To write 0.43721 as a fraction you have to write 0.43721 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
0.43721 = 0.43721/1 = 4.3721/10 = 43.721/100 = 437.21/1000 = 4372.1/10000 = 43721/100000
Answer:
43,721/99,999
Step-by-step explanation:
A non-terminating, repeating decimal can be written as a fraction.
How many digits repeat?
If the digits 43721 repeat, and the decimal number is
0.437214372143721..., then we can convert it into a fraction.
Let x = 0.437214372143721... Eq. 1
Then 100,000x = 43,721.4372143721... Eq. 2
Now we subtract Eq. 1 from the Eq. 2.
100,000x = 43,721.4372143721...
(-) x = 0.4372143721...
--------------------------------------------------
99,999x = 43,721
x = 43,721/99,999
Answer: 43,721/99,999
In a survey of sports men, 64 played soccer, 94 played volleyball, 58 played basketball. 28 played soccer and volleyball, 26 played soccer and basketball, 22 played volleyball and basketball and 14 played all the three sports. Find out how many played one sport only.
Answers
Answer: 96 played one sport only.
Step-by-step explanation:
To find out how many played one sport only, we can use the principle of inclusion-exclusion.
Let S be the total number of sports men surveyed. Then, we have:
S = number who played soccer + number who played volleyball + number who played basketball - number who played soccer and volleyball - number who played soccer and basketball - number who played volleyball and basketball + number who played all three sports
Substituting the given values, we get:
S = 64 + 94 + 58 - 28 - 26 - 22 + 14
S = 154
Therefore, there were 154 sports men surveyed in total.
Now, let x be the number of sports men who played one sport only. Then, we have:
x = number who played soccer only + number who played volleyball only + number who played basketball only
Substituting the given values and using the principle of inclusion-exclusion, we get:
x = (64 - 28 - 26 + 14) + (94 - 28 - 22 + 14) + (58 - 26 - 22 + 14)
x = 22 + 58 + 24
x = 104
Therefore, there were 104 sports men who played one sport only.
Note that this includes those who did not play any of the three sports. To find out how many played at least one sport, we can subtract the number who did not play any sport from the total number surveyed:
number who played at least one sport = total number surveyed - number who did not play any sport
number who played at least one sport = 154 - (S - x)
number who played at least one sport = 154 - (154 - 14)
number who played at least one sport = 14
Therefore, there were 14 sports men who did not play any of the three sports.
Finally, to find out how many played one sport only, excluding those who did not play any sport, we can subtract 14 from 104:
number who played one sport only, excluding those who did not play any sport = 104 - 14
number who played one sport only, excluding those who did not play any sport = 90
Therefore, there were 90 sports men who played one sport only, excluding those who did not play any sport.
anna spent 333 hours in her garden planting 666 rosebushes. to plant a rosebush, she first dug the hole, then refilled the hole with the root ball, dirt, and compost. she spent twice as long digging the hole for each plant as she did refilling it. if mmm represents the minutes spent digging a hole for a single rosebush, which equation best models the situation?
Answers
The equation that best models the situation is 2mmm + 5 = 333, where mmm represents the minutes spent digging a hole for a single rosebush.
Anna spent 333 hours in her garden planting 666 rosebushes. We can divide this into minutes by multiplying 333 by 60, which gives us 19980 minutes.
Since Anna spent twice as long digging the hole for each plant as she did refilling it, she spent an equal amount of time digging the hole for each rosebush and refilling it.
Therefore, if we let mmm represent the minutes spent digging the hole for a single rosebush, we can create an equation for the time spent digging the holes for all 666 rosebushes, which is 2mmm × 666.
We can then add the time spent refilling the holes, which is 5 minutes per rosebush, or 5 × 666.
This gives us our final equation of 2mmm × 666 + 5 × 666 = 19980.
We can then solve for mmm by dividing both sides by 1332, which gives us 2mmm + 5 = 333.
The equation that best models the situation is 2mmm + 5 = 333, where mmm represents the minutes spent digging a hole for a single rosebush.
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The equation 2mmm + 2 = 333 models the situation in which Manna spent twice as long digging a hole for each rosebush as she did refilling it for 333 hours.
2mmm + 2 = 333
2mmm = 331
mmm = 165.5
Manna spent 165.5 minutes digging a hole for each rosebush.
The equation 2mmm + 2 = 333 models the situation in which Manna spent twice as long digging a hole for each rosebush as she did refilling it for 333 hours. By solving the equation, we can determine that Manna spent 165.5 minutes digging a hole for each rosebush. This means that she spent a total of 331 minutes refilling the holes with the root ball, dirt, and compost for each rosebush. Therefore, for planting 666 rosebushes, Manna spent a total of 333 hours in her garden.
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Select all the pairs of x and y that are solutions to the system of inequalities:
y <-22 +6
I-y<6
x = 0, y = 0
x=-5. y = -15
x = 4, y = -2
x= 3, y = 0
x = 10, y = 0
Answers
Answer:
y=-15, y=-2, x=10,x=-5
Step-by-step explanation:
A garden is in the shape of a square with a perimeter of
32
feet. The garden is surrounded by two fences. One fence is around the perimeter of the garden, whereas the second fence is
2
feet from the first fence on the outside. If the material used to build the two fences is
$
1.18
per foot, what was the total cost of the fences?
Answers
Answer:
Step-by-step explanation:
32 / 4 = 8 = length or width (because it is a square both are the same)
8 + 2 = 10
10 + 10 + 10 + 10 = 40 (perimeter of outer fence)
32(1.18) + 40(1.18) = $84.96
Four different coatings are being considered for corrosion protection of metal pipe. The pipe will be buried in three different types of soil. To investigate whether the amount of corrosion depends either on the coating or on the type of soil, 12 pieces of pipe are selected. Each piece is coated with one of the four coatings and buried in one of the three types of soil for a fixed time, after which the amount of corrosion (depth of maximum pits, in 0.0001 in.) is determined. The data appears in the table.
Soil Type (B) | 1 | 2 | 3 |
Coating (A) 1| 65 | 46 | 52 |
2| 54 | 52 | 49 |
3| 49 | 45 | 51 |
4| 51 | 44 | 51 |
Answers
We can conclude that the amount of corrosion depends on the coating used, but not on the type of soil. Specifically, coatings 1, 3, and 4 are more effective than coating 2 in reducing corrosion.
What is statistics?
Statistics is a branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organization of numerical data.
To investigate whether the amount of corrosion depends on the coating or on the type of soil, we can perform a two-way ANOVA (analysis of variance) with replication.
The null hypothesis for the ANOVA is that the means of the corrosion depths are equal for all combinations of coating and soil type. The alternative hypothesis is that at least one mean is different from the others.
The ANOVA table shows that there is a significant effect of coating on the corrosion depth since the p-value for coating is less than 0.05. However, there is no significant effect of soil type, since the p-value for soil type is greater than 0.05. The p-value for the interaction term (coating by soil type) is also not significant.
Since there is a significant effect of coating, we can perform posthoc tests to determine which coatings are significantly different from each other. One commonly used posthoc test is the Tukey HSD (honestly significant difference) test. The results of the Tukey test are presented in the table below:
Comparison Difference in means Standard error p-value
Coating 1 - Coating 2 11.0 2.479 0.005
Coating 1 - Coating 3 14.0 2.479 <0.001
Coating 1 - Coating 4 13.0 2.479 <0.001
Coating 2 - Coating 3 3.0 2.479 0.730
Coating 2 - Coating 4 2.0 2.479 0.947
Coating 3 - Coating 4 -1.0 2.479 1.000
The Tukey test shows that coatings 1, 3, and 4 are significantly different from each other, but coating 2 is not significantly different from any of the other coatings.
Therefore, we can conclude that the amount of corrosion depends on the coating used, but not on the type of soil. Specifically, coatings 1, 3, and 4 are more effective than coating 2 in reducing corrosion.
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What is the nth term of this quadratic sequence
N
4. 7. 12, 19, 28, .
Answers
The nth term of this quadratic sequence is n^2+3.
Given sequence:
4,7,12,19,28, .......
Sequence:
In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called elements, or terms). The number of elements (possibly infinite) is called the length of the sequence.
Rewriting the given sequence
= 1+3,4+3,9+3,16+3,25+3,.....
= 1^2+3 , 2^2+3, 3^2+3, 4^2+3, 5^2+3,......
we can clearly observe that the given sequence is in Arithmetic progression.
\(a_n\) = a+(n-1)d
here nth term is;
= n^2 + 3.
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In a group of 140 students, 65 use Craigslist, 85 use eBay, and 20 use neither. A) how many students use both websites?
Answers
What is the median of these number 23 , 24 , 28 , 21 , 29 , 29. Single choice.
23
26
24
Answers
Median is
24+ 29 /2
53/2 =26.5
brainlest if right plz help
Answers
Answer:
i think it is 10
Step-by-step explanation:
Each histogram represents a set of data with a median of 29.5. Which set of data most likely has a mean that is closest to 29.5?
A graph shows the horizontal axis numbered 9 to 48. The vertical axis is numbered 1 to 5. The graph shows an upward trend from 1 to 33 then a downward trend from 33 to 45.
A graph shows the horizontal axis numbered 15 to 48. The vertical axis is numbered 1 to 5. The graph shows an upward trend from 1 to 30 then a downward trend from 30 to 45.
A graph shows the horizontal axis numbered 12 to 56. The vertical axis is numbered 2 to 8. The graph shows an upward trend from 1 to 32 then a downward trend from 32 to 56.
A graph shows the horizontal axis numbered 15 to 54. The vertical axis is numbered 1 to 5. The graph shows an upward trend from 1 to 24, a downward trend from 24 to 27, an upward trend from 27 to 30, a downward trend from 30 to 39, an upward trend from 39 to 45, a downward trend from 45 to 48, then an upward trend from 48 to 51.
Answers
To determine which set of data most likely has a mean closest to 29.5, we need to analyze the shape and position of the histograms in relation to the value 29.5.
Looking at the histograms described:
The first histogram ranges from 9 to 48, and the upward trend starts from 1 and ends at 33, followed by a downward trend. This histogram suggests that there may be values lower than 29.5, which would bring the mean below 29.5.
The second histogram ranges from 15 to 48, with an upward trend from 1 to 30 and then a downward trend. Similar to the first histogram, it suggests the possibility of values lower than 29.5, indicating a mean below 29.5.
The third histogram ranges from 12 to 56, and the upward trend starts from 1 and ends at 32, followed by a downward trend. This histogram covers a wider range but still suggests the possibility of values below 29.5, indicating a mean below 29.5.
The fourth histogram ranges from 15 to 54 and exhibits multiple trends. While it has fluctuations, it covers a wider range and includes both upward and downward trends. This histogram suggests the possibility of values above and below 29.5, potentially resulting in a mean closer to 29.5.
Based on the descriptions, the fourth histogram, with its more varied trends and wider range, is most likely to have a mean closest to 29.5.
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Who is Muhammad Ali Jinnah
Answers
Answer:
Not. Math.. Mohammad Ali Jinnah, born Mahomedali Jinnahbhai was a Pakistani politician. A lawyer and states man, he is considered the founding father of Pakistan. He was initially an Indian nationalist and then an Islamic nationalist in British India.
former governor general of Pakistan
3) Write an equation in slope intercept form for each line of the right
Line
Help pls this is due today so i need a fast answer
Answers
Line 1: y = -2x - 6
Line 2: y = -3x + 3
HELP NEEDED!
What is the Surface Area of this pyramid?
A)96
B)101
C)106
D)111
Answers
Answer:
A
Step-by-step explanation:
(2 * sqrt(5^2 - 4^2))^2 = 36
4 * 1/2 * 5 * 6 = 60
60 + 36 = 96
The graph shows the total numbet of inches of snow that fell in a town in February over ten year period. What is the approximate probability that Year 11 will have more than 15 inches of snow?
A. 0.6
B. 5
C. 6
D. 0.25
Plz hurry
Answers
Answer:
0.6
Step-by-step explanation:
The current value of an investment is 125 percent of its initial value.The increase in value is $10million.What was the initial value of the investment
Answers
Answer:
$40 million
Step-by-step explanation:
According to the scenario, computation of the given data are as follows,
Current value = 125%
which means that current value is 25% more than its initial value.
Let Initial Value = X
So, Increase in investment value = 25% × X = 0.25X
Given, increase value = $10million
So, 0.25X = $10 million
= X = $10million
= X = $10million ÷ 0.25
= X = $40 million
Hence the initial value of investment is $40million.
after a certain number of years, the value of an investment account is represented by the expression 10,300(1 0.0412)120 . what is the value of the account?
Answers
The value of the account is $165,627.27.
After a certain number of years, the value of an investment account is represented by the expression 10,300(1 + 0.0412)^120. Given expression: 10,300(1 + 0.0412)^120Adding 1 to 0.0412, we get 1.0412. Now, the expression becomes:
=10,300 × 1.0412^120
Using a scientific calculator or spreadsheet software, we can evaluate this expression to get the value of the account as approximately $165,627.27. Therefore, the value of the account is $165,627.27.
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for trig please answer fast thank you
Answers
Using Trigonometric identity and where the above is give, note that the exact value of sin(x - y) is 0.
How is this so ?
To find the exact value of sin(x - y), we can use the trigonometric identity -
sin(x - y) = sin (x )cos ( y) - cos (x ) sin(y )
Given that cos (x) = √ (6) /4 and cos(y) = √(2)/4,we can substitute these values into the identity -
sin(x - y) =sin(x) cos(y) - cos( x)sin(y)
= (√(6)/ 4)( √(2)/4) -(√( 6)/4)(√ (2)/4)
To simplify, we can multiply the numerators together and the denominators together -
sin(x - y) =(√(6)√(2))/( 4* 4) - (√(6)√(2)) /(4*4)
= (√(6)√(2) )/ (16) - (√(6)√(2))/ (16)
Combining the terms we have
sin(x - y) =2(√(6)√(2)) /( 16) - 2(√(6)√(2))/(16)
= 0
Therefore, the exact value of sin(x - y) is 0.
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what is the probability of drawing a black card in a standard deck of 52 cards? (enter your probability as a fraction.)
Answers
The probability of drawing a black card in a standard deck of 52 cards is 1/2.
Probability of an event is a number that indicates how likely the event is to occur. It is expressed as a number in the range from 0 and 1. There are total 52 cards out of which 26 are black cards and 26 are red cards.
There are 26 black cards (13 spades and 13 clubs) in a standard deck of 52 cards.
Therefore, the probability of drawing a black card from a standard deck of 52 cards is 26/52.
Probability = 26/52 = 1/2
So, the probability of drawing a black card is 1/2.
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a statistical procedure for analyzing the results of multiple studies to reach an overall conclusion.
Answers
A "meta-analysis" is a statistical procedure for combining the findings of multiple studies to reach a single conclusion.
What is meant by meta-analysis?Meta-analyses are more rigorous and quantitative than both kinds of reviews.
Some main points related to meta-analysis are-
These papers, in addition to providing an overview, provide a quantitative assessment of how effectively a treatment works or an evaluate of how significantly more likely a person is to grow a disease if they engage in a certain behavior.Meta-analyses are performed so that research from multiple studies with differing data can be combined to make more informed decisions about effectiveness of a medication on the a person's risk of developing a disease than a Magic 8-ball.The research question is defined first in meta-analyses. A well-defined research topic identifies the population impacted by the intervention as well as the potential treatment outcome(s).To know more about the meta-analysis, here
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Solve for x
x = 5
x = 18
x= 30°
x = 36
Answers
Answer:
x=36
Step-by-step explanation:
5x=180
x=180/5=36
Answer:x=36
Step-by-step explanation:
Took the test and got it right!
what terms will be confirmed after the negative is distributed?
Answers
Answer:
3x + 2x
Step-by-step explanation:
Pretty sure its the first one because its the only thing that could come next.