Considering that the p-value associated for a right-tailed test with z = 2.115 is of 0.0172, it is found that it is significant at the 5% level, but not at the 1% level.
When a measure is significant?If p-value > significance level, the measure is not significant.If p-value < significance level, the measure is significant.Using a z-distribution calculator, it is found that the p-value associated for a right-tailed test with z = 2.115 is of 0.0172, hence, this is significant at the 5% level, but not at the 1% level.
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to meet slope constraint rhonda wants to change the height of the zip-line 7 ft and end at a height 9 ft above the ground
Test Rhonda’s claim
All the three locations has been checked below.
Using Pythagoras theorem,
12² = 8² + x²
144 - 64 = x²
x= √80
x=8.9
Now, using Trigonometry
tan F = P/B
tan F= 8/8.9
and, sin F = P/H
sin F= 8/12 = 2/3
and, cos F = B/H
cos F= 12/8.9
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sale of eggs that are contaminated with salmonella can cause food poisoning in consumers. a large egg producer takes an srs of 200 eggs from all the eggs shipped in one day. the laboratory reports that 9 of these eggs had salmonella contamination. unknown to the producer, 0.1% (one-tenth of 1%) of all eggs shipped had salmonella. identify the population, the parameter, the sample, and the statistic.
The simple random sample of 200 eggs
Statistic=Proportion of eggs in the sample that contain salmonella.
p = 0.045
The population is the individuals that are being studied.
population=All eggs in one day
A sample is the part of the population of which information was actually collected.
Sample=The simple random sample of 200 eggs
A parameter is a descriptive measure for a population.
Parameter=Proportion of eggs shipped that day that contain salmonella.
p = 0.1 % =0.001
A statistic is a descriptive measure for a sample.
STATISTIC=Proportion of eggs in the sample that contain salmonella.
p=9÷200 = 0.045
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Plz help me on this
Answer:
3 pages
Step-by-step explanation:
12% of 25 = 3
bro, goo.gle
Answer:
Try maybe 48 pages?
Step-by-step explanation:
I'm not sure though so just try maybe
tell me if it's wrong...okay?
Consider this function.
f(x) = |x – 4| + 6
If the domain is restricted to the portion of the graph with a positive slope, how are the domain and range of the function and its inverse related?
If we restrict the domain of the function to the portion of the graph with a positive slope, the domain of the inverse function will be the range of the original function for values of x greater than 4, and its range will be all real numbers greater than or equal to 4.
The given function f(x) = |x – 4| + 6 is a piecewise function that contains an absolute value. The absolute value function has a V-shaped graph, and the slope of the graph changes at the point where the absolute value function changes sign. In this case, that point is x=4.
If we restrict the domain of f(x) to the portion of the graph with a positive slope, we are essentially considering the piece of the graph to the right of x=4. This means that x is greater than 4, or x>4.
The domain of the inverse function, f⁻¹(x), will be the range of the original function f(x) for values of x greater than 4. This is because the inverse function reflects the original function over the line y=x. So, if we restrict the domain of f(x) to values greater than 4, the reflected section of the graph will be the range of f⁻¹(x).
The range of f(x) is all real numbers greater than or equal to 6 because the absolute value function always produces a positive or zero value and when x is greater than or equal to 4, we add 6 to that value. The range of f⁻¹(x) will be all real numbers greater than or equal to 4, as this is the domain of the reflected section of the graph.
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Which expression shows how to find the area of the figure? What is the area of the figure?
Answer:
42 cm squared
Step-by-step explanation:
For part 1, separate the figure into two squares. The 6's are there to trick you, so we won't be using them for the entire process while solving this problem. The bright side is that you won't trick the 6's yourself. Heh. Once doing that, you should get 9 X 4 + 2 X 3, which would be C according to the choices shown.
For part 2, simply do order of operations, or PEMDAS. Here's what PEMDAS stands for:
Parenthesis
Exponents
Multiply/Divide from the left to the right
Add/Subtract from the left to the right
You MUST do this IN ORDER! No exceptions!
Multiply 9 by 4, then multiply 2 by 3.
After that, you should get 36 and 6. Add them together, and you'll get your final answer, which would be 42 cm squared.
So, the final answer would be 42 cm squared.
Hope this helped!
v ÷ 2= Algebra mathematics
Answer:
V/2 is the answer.
Step-by-step explanation:
V2 is V * 2, which is the opposite of what you want.
Out of his monthly salary, Josh spends 37.5% on his bills, on groceries, and on transportation. If he decides to save of the remaining part, what percentage of his salary will he save?
A.
10%
B.
6.25%
C.
7.5%
D.
8.75%
A certain retail store bases its staffing on the number of customers that arrive during certain time slots. Based on prior experience this store expects 32% of its customers between 8:00 am and 12:00 pm; 21% of its customers between 12:00 pm and 4:00 pm; 35% of its customers between 4:00 pm and 8:00 pm; and 12% of its customers between 8:00 pm and midnight. On a certain day, the store had 214, 198, 276, and 134 customers in those time slots, respectively. Should the store change its staffing? What was wrong with this solution?
Answer:
Step-by-step explanation:
Based on the data gathered on that certain day, I would say NO, the store does not need to change its staffing. The data shows that the percentages calculated by the store are extremely close to the actual percentage of people that arrived at those given hours throughout the day. The problem with this solution is that it does not take into account special circumstances, such as specific days, events, holidays, new popular items, etc. All of these can drastically affect the number of people that enter the store at a given time.
1. The retail store should not change its staffing arrangement.
2. Changing the staffing arrangement may not favor the retail store.
Data and Calculations:
8:00 am & 12:00 pm & 4:00 pm & 8:00 pm &
12:00 pm 4:00 pm 8:00 pm midnight
Expected % of customers 32% 21% 35% 12%
Actual number of customers 214 198 276 134
Total Number of customers = 822 (214 + 198 + 276 + 134)
Actual % of customers 26% 24% 34% 16%
Difference between expected percentage of
customers and actual 6% 3% 1% -4%
Variation 0.36% 0.09% 0.01% 0.16%
Sum of variation = 0.62%
Standard Deviation = 0.787
Thus, based on the standard deviation, the store should not change its staffing.
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50 Points! Multiple choice algebra graphing question. Which square root function is represented by the graph? Photo attached. Thank you!
A square root function that is represented by the graph include the following: A. f(x) = √(4x + 8).
What is a square root function?In Mathematics and Geometry, a square root function can be defined as a type of function that typically has this form f(x) = √x, which basically represent the parent square root function i.e f(x) = √x.
In Mathematics and Geometry, a horizontal translation to the left is modeled by this mathematical equation g(x) = f(x + N) while a vertical translation to the positive y-direction (downward) is modeled by this mathematical equation g(x) = f(x) - N.
Where:
N represents an integer.g(x) and f(x) represent functions.Therefore, the required square root function is given by;
f(x) = √(4x + 8)
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A video game is on sale for 20% off. If the original price is $75, what will it cost after the discount?
Answer:
the answer is $15
Step-by-step explanation:
0.20 x 75 = 15
6x - y = 5
3x + y = 4
Answer:
1.6x-y=5--->equ.(i)
3x+4=y--->equ.(ii)
substitution method
6x-y=5
y=5+6x--->equ (iii)
Replace y=5+6x into equ--->(ii)
3x-5+6x=4
3x+6x=4+5
9x=9
divide both side by 9
9x/9=9/9
x=1
Replace x=1 into equ (iii)
6(1)-y=5
6-y=5
y=5+6
y=11
then your x and y is
x=1,y=11
Please help super easy. (am dum)
Answer:
Here is the answer
Step-by-step explanation:
36 = 3x2x3x2
8 = 2x2x2
42 = 7x3x2
Use linear approximation, i.e. the tangent line, to approximate 3√ 125.2 as follows: Let f(x)=√x. The equation of the tangent line to f(x) at x = 125 can be written in the form
y=mx+b
Using linear approximation, the expression √125.2 can be approximated as approximately 10.02.
How to find linear approximation?To find the equation of the tangent line to the function f(x) = √x at x = 125, determine the slope (m) and the y-intercept (b) of the tangent line.
First, find the slope (m) using the derivative of the function f(x) = √x:
f'(x) = 1 / (2√x)
Evaluate the derivative at x = 125:
f'(125) = 1 / (2√125) = 1 / (2 × 5) = 1/10
Now, find the y-coordinate of the point on the function f(x) at x = 125:
f(125) = √125 = 5
So, the tangent line at x = 125 passes through the point (125, 5) and has a slope of 1/10.
Using the point-slope form of a linear equation, the equation of the tangent line can be written as:
y - 5 = (1/10)(x - 125)
To simplify, multiply through by 10:
10y - 50 = x - 125
Rearranging the equation, express it in the form y = mx + b:
y = (1/10)x - 75/10 + 5
Simplifying further:
y = (1/10)x - 75/10 + 50/10
Combining the terms:
y = (1/10)x - 25/10
Therefore, the equation of the tangent line to f(x) = √x at x = 125 is y = (1/10)x - 25/10.
Now, use this tangent line to approximate the value of √125.2:
Substitute x = 125.2 into the equation:
y = (1/10)(125.2) - 25/10
y = 12.52 - 2.5
y ≈ 10.02
So, using linear approximation, approximate √125.2 as approximately 10.02.
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If an item that originally cost $12 is increased to $16, what is the percentage of increase in the item?
\( \rightarrow \) 12.5%
=================================================
Explanation/Solution:To solve, use the formula:
\( \rightarrow \: \rm Percent \: of \: Increase = \frac{Amount \: of \: Increase}{Original \: Amount} \\ \)
Solve.
\( \rightarrow \: \rm = \frac{16 - 12}{12} \) Amount of increase: 16 - 12 = 2
\( \rightarrow \: \rm = \frac{2}{16} \) Simplify.
\( \rightarrow \: \rm = \frac{x}{100} = \frac{1}{8}\) Write the fraction as a percent.
\( \rightarrow \)8x = 100 Find the product of the extreme and the means.
\( \rightarrow \: \rm = \frac{8x}{8} = \frac{100}{8}\) Divide both sides by 8.
\( \rightarrow \)x = 12.5
Therefore, the percentage of increase in the item is 12.5%.
Find the original slope of (-6,-1) and (0,3)
Answer:
slope (m) = 2/3
Step-by-step explanation:
slope = change in x /change in y
Also, slope is y2 - y1 / x2 -x1. That is what I apply for this activity, hence:
slope = 3 - (-1) / 0 - (-6)
= 3 + 1 / 0 + 6
= 4 / 6
= 2/3
∴ slope(m) = 2/3
Please help I can’t get this wrong
Step-by-step explanation:
writing an expression this is the answer:
(-2x+2) - (-7x-9) =
-2x + 2 + 7x +9
solving it this is the answer
-2x + 2 + 7x + 9
-2x + 7x + 2 + 9
5x + 11
please help solving.
Answer:
right machine first, then left.6 into left machine, then rightStep-by-step explanation:
a) Putting 6 into the first (left) machine will give an output of ...
y = √(6 -5) = √1 = 1
Putting 1 into the second (right) machine will give an output of ...
y = 1² -6 = -5
This answers the second question, but not the first question.
__
If we put 6 into the right machine first, we get an output of ...
y = 6² -6 = 30
Putting 30 into the left machine, we get an output of ...
y = √(30 -5) = √25 = 5 . . . . . the desired output.
The input must go into the right machine first, then its output goes into the left machine to get a final output of 5 from an input of 6.
__
b) The left machine cannot produce negative outputs, so achieving an output of -5 with the arrangement used in part A is not possible. (green curves in the attached graph)
However, as we have shown above, inputting 6 to the left machine first, following that by processing with the right machine, can produce an output of -5. (purple curve in the attached graph)
According to the food label on a box cookies, each box has 16
servings and each sering contains 4 cookies. The weight of the
ba of cookies is Kilogroms. What is the weight of each
cooke?
I cant help you but I can give you the equation: 16 x 4 x weight per cookie = answer
Step-by-step explanation:
did you forget to write the whole question?
The mean of 3 numbers is 4
The two numbers are 1,9
what is the missing number?
Answer:
2
Step-by-step explanation:
1+9+2 = 12
12/3= 4
Answer:2
Step-by-step explanation:9+2+1=12
So 12/3=4
ANSWER=2
$0.25 per minute for the first 400 minutes. Write the function that models
The cost of an air conditioner is $130. The cost to run the air conditioner is
determine the key features of the function.
the total cost of running the air conditioner for the first 400 minutes and
Function:
Domain
Range
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
What was the answer
HURRY!!!!
Rigid transformation test
will give 15 points
solve these two questions please
100 Points! Algebra question, photo attached. Please show as much work as possible. Thank you!
A. The distributions of the periods is that using the five number summary is that
The 7th Period has higher minimum and lower maximumThe 3rd period is more spread (from the quartiles)The 7th Period has higher medianB. The box and whisker plot of the periods is attached
A. Comparing the distributions of the periodsFrom the question, we have the following parameters that can be used in our computation:
7th Period
66, 72, 77, 78, 78, 80, 82, 84, 84, 87, 88, 88, 89, 89, 90 92, 92, 93, 94, 94 96, 96
3rd Period
52, 60, 62, 64, 64, 65, 68, 71, 72, 74, 75, 76, 78, 79, 83, 84, 85, 88, 89, 93, 94, 97
The distributions of the periods will be compared using the five-number summaries
Using a graphing tool, the five-number summaries are:
7th Period
Minimum: 66Lower Quartile Q1: 79.5Median: 88Upper Quartile Q3: 92.25Maximum: 963rd Period
Minimum: 52Lower Quartile Q1: 64.75Median: 75.5Upper Quartile Q3: 85.75Maximum: 97B. Creating a box and whisker plot of the periodsThe box and whisker plot of the periods is added as an attachment
From the box and whisker plot attached, we can see the five-number summaries of the periods
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A yogurt shop offers 7 different flavors of frozen yogurt and 11 different toppings. How many choices are possible for a single serving of frozen yogurt with one topping?
Answer:
77Step-by-step explanation:
for each one of the 7 different flavors of frozen yogurt there are 11 possible different toppings
Then there are 7 × 11 = 77 possible choices for a single serving of frozen yogurt with one topping
please Translate the triangle.
Then enter the new coordinates.
A (-2,4)
(-3,2)
< 9.3 >
A'([?], [])
B'([ ].[])
C'([] [])
Answer:
A' (7,7)
B' (10,4)
C' (6,5)
Step-by-step explanation:
Add 9 to every x value and 3 to every y value.
Answer:
A'(7,7)
B'(10,4)
C'(6,5)
Step-by-step explanation:
⭐What is a translation?
a translation is a type of transformation you can do to a figure to shift the figure up/down and left/right.⭐What is the translation notation?
\(T_ < x,y > (ABC) = (A'B'C')\)\(T_ < x,y >\) tells you how much to move the figure left/right and up/down. x = left/righty = up/downThe problem tells us to translate ΔABC 9 units to the right, and 3 units up because it is inside the <>, and the numbers are positive.
To translate the vertices of ΔABC, we have to add the respective x and y coordinates of the translation rule to each vertecie of ΔABC.
A(-2,4):
Add the respective x and y coordinates of the translation rule to the coordinates of the vertecieA'(-2+9, 4+3) = A'(7,7)B(1,1):
Add the respective x and y coordinates of the translation rule to the coordinates of the vertecieB'(1+9, 1+3) = A'(10,4)C(-3,2):
Add the respective x and y coordinates of the translation rule to the coordinates of the vertecieC'(-3+9, 2+3) = A'(6,5)⭐if this response helped you, please mark it the "brainliest"!⭐
33. (09.02 MC)
The point (4,-9) is on the terminal side of angle e, in standard position. Calculate the length of the hypotenuse. What are the values of sine, cosine, and tangent of 87
Make sure to show all work. Leave answers in root form (not decimals). (10 points)
The length of the hypotenuse is given as follows:
9.85.
Hence the trigonometric ratios are given as follows:
\(\sin{e} = -\frac{9\sqrt{97}}{97}\) \(\cos{e} = \frac{4\sqrt{97}}{97}\) tan(e) = -2.25.What are the trigonometric ratios?The three trigonometric ratios are the sine, the cosine and the tangent, and they are obtained according to the rules presented as follows:
Sine of angle = opposite side/hypotenuse.Cosine of angle = adjacent side/hypotenuse.Tangent of angle = opposite side/adjacent side = sine/cosine.Applying the Pythagorean Theorem, the length of the hypotenuse is obtained as follows:
h² = 4² + (-9)²
\(h = \sqrt{97}\)
The x-coordinate is used to obtain the cosine ratio as follows:
\(\cos{e} = \frac{4}{\sqrt{97}} \times \frac{\sqrt{97}}{\sqrt{97}} = \frac{4\sqrt{97}}{97}\)
The y-coordinate is used to obtain the sine ratio, as follows:
\(\sin{e} = -\frac{9}{\sqrt{97}} \times \frac{\sqrt{97}}{\sqrt{97}} = -\frac{9\sqrt{97}}{97}\)
The tangent is given by the division of the sine by the cosine, hence:
tan(e) = -9/4
tan(e) = -2.25.
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25 points!!! And brainliest!!! In an archery competition, one of the targets is created using round board with congruent square holes. What is the probability that an arrow shot within the round target will go through one of the four holes. Round to the nearest tenth of a percent.
Answer:
9.8%
Step-by-step explanation:
This is a simple geometric probability question. We start off by finding the total area, which is πr². Plugging in 18 from 36 ÷ 2 to get the radius, the total area of the circle is 324π. The squares each are 25 in² apiece, because of 5 × 5, so then the total, because there are 4 squares, is 100 in².
We then do 100 ÷ 324π, which is approximately 9.8 percent.
Answer:it’s benefit of the line
Step-by-step explanation:
just do it
a tourist information center is between a bus station and a train station when mapped on a grid, the tourist information center is located at (1,4) and the bus is located at (-3,7) the train station is located at point
Answer:
dfd
Step-by-step explanation:
Please show me how u got theses Answer
7 times 7 times 7
3 times 3 times 3 times 3 times
Answer:
7 x 7 x 7= 49 x 7= 343
3 x 3 x 3 x 3= 9 x 3 x 3= 27 x 3= 81
HELLPP PLEASE
After becoming sick, a patient sees a doctor who determines the most likely cause is an allergic
reaction and prescribes an antihistamine. The patient returns home and stops burning candles and
incense for the next week while taking the medication. By the end of the week, the patient is feeling
better and is telling all his friends how wonderful the medication was at relieving his symptoms. This
is an example of
1. confounding, as there is no way to tell whether it was the medication that alleviated his
symptoms
2. convenience sampling since he only stopped burning candles and incense because it was easy
3.a double-blind experiment since neither he nor the doctor really knew what was wrong
4. bias since he wanted to feel better
Answer:
I think it is 1, but I am not 100%
Step-by-step explanation:
Since he stopped the meds at the same time he stopped what couldve been his cousin his reaction to begin with, you can prove if it was medication only.
Find the slope and y intercept of the line 5x-9y=45
Answer:
slope = \(\frac{5}{9}\) , y- intercept = - 5
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
given
5x - 9y = 45 ( subtract 5x from both sides )
- 9y = - 5x + 45 ( divide through by - 9 )
y = \(\frac{-5}{-9}\) x + \(\frac{45}{-9}\) , that is
y = \(\frac{5}{9}\) x - 5 ← in slope- intercept form
with slope m = \(\frac{5}{9}\) and y- intercept c = - 5