Hey!, can you pls help me? I've been stuck on this for a long time...

Hey!, Can You Pls Help Me? I've Been Stuck On This For A Long Time...

Answers

Answer 1
y=1/2x-4 and y=3/2x+2

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Can someone realy nice help me? I am going to give ya 20 pionts and BRAINLEST!! TYSM

the liner Regresstion is y=0.176x+0.500 (I got this one myself LOL)


the table is

|Y | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
|---------------------------------------------------------------------------------------------------------|
|X | 0.70 | 1.04 | 1.15 | 1.38 | 1.86 | 1.70 | 2.55 | 1.29 | 2.22 | 2.56 |

so there are 2 parts (it is not a lot but worth your time) LOL.

part 1# List the domain of the linear regression equation in interval notation. Round to the nearest thousandth if needed.


part 2# List the range of the linear regression equation in interval notation. Round to the nearest thousandth if needed

agian thank you

Answers

here are some screen shots hope it helps

farmer scott is one of the best farmers in town. during the middle of the corn-growing season, farmer scott had to travel out of town for two weeks, and he left his acres of corn plants alone with no chemicals or other protection. in terms of succession, which of these best describes what farmer scott returned to after the two weeks?

Answers

After Farmer Scott travelled for two weeks and left his acres of corn plants alone with no chemicals or other protection weeds began to grow and develop after farmer Scott returned to after the two weeks.

The farmer Scott will almost certainly come across the little weeds that had begun to sprout and flourish in his corn field while he was away this was as a result of not attending to the corn fields. The field was not safeguarded by pesticides or insecticides. The weeds would not have been eradicated for two weeks, resulting in greater growth. They will consume all of the nutrients, causing the corn plants to perish.

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Some instructions for the time it take to roast a turkey are: "allow 20 minutes for every 450 g". How long will it to take to roast a turkey that weights 6.3 kg

Answers

Answer:

Step-by-step explanation:

6.3kg = 6300 g

450 * 14 = 6300

20 minutes for 450 g

so, 20 *14 = 280 minutes

Answer:

280 minutes

Step-by-step explanation:

To roast a turkey that weighs 6.3 kg, it will take 20 minutes for every 450 g of turkey, or a total of 20 minutes * (6.3 kg / 0.45 kg/450 g) = 280 minutes.

n linear​ programming, what is another name for sensitivity​ analysis? part 2 a. regression analysis b. postoptimality analysis c. parametric analysis d. robustness analysis

Answers

Postoptimality analysis is another name for sensitivity analysis

What is sensitivity analysis?

According to a certain set of supposition, sensitivity analysis evaluates how various values of an independent variable affect a specific dependent variable. In other words, sensitivity studies look at how different types of uncertainty in a mathematical model affect the overall level of uncertainty in the model. This method is used within boundaries that are preset and depend on one or more input variables.

Both the corporate sector and the study of economics employ sensitivity analysis. It is often referred to as a what-if study and is frequently utilized by economists and financial experts.

Therefore, Postoptimality analysis is another name for sensitivity

analysis and thus option B is the correct answer

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5. A kite at point C is sighted by two observers at points A and B at angles of elevation 20° and 70°. The observers are 100 ft apart and are in the same vertical plane as the kite. How high is the kite? ​

Answers

Answer:

Step-by-step explanation:

x 3.2 is the answer maybe

Describe the end behavior of the function.

Answers

The end behavior of the function is described by the following option:

f(x) -> 0 when x -> -∞ and f(x) -> -∞ when x -> ∞.

How to obtain the end behavior of a function?

The end behavior of a function is given by the limits of the function as x goes to infinity.

On the graph, these limits are found looking at the behavior at the left end and at the right end of the graph, as follows:

Left end: x -> -∞.Right end: x -> ∞.

From the graph, these limits are given as follows:

Left end: x -> -∞ -> 0, as the function tends to the origin.Right end: x -> ∞ -> negative infinity, as the function moves down.

Hence the correct statement is given by the third option, as the other options give the wrong limits.

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consider a function z(x, y) and its partial derivative (∂z/∂y)x. if this partial derivative is equal to zero for all values of x, what does it indicate?

Answers

If the partial derivative is equal to zero for all values of x then it indicates that the function is constant.

What is a partial derivative?

In differential calculus, partial derivative is defined as the rate of change of multivariable functions concerning change in just one of its variables.

Consider the restriction of f to a line y=c,

then

[tex] \frac{∂f}{∂x}(x \: c) = fx(f \: c) = 0[/tex]

Pick 2 points a and b, then by mean value theorem there is x0, such that

[tex]fx(x \: c) = \frac{f(b \: c) - f(a \: c)}{b - a} = 0[/tex]

[tex]⟹f(b \: c) - f( \: a \: c) = 0⟹f(b \: c) = f(a \: c)⟹f(x \: c) = const.[/tex]

We can show the same way that f(c,y)=const.

Combining f(x,c)=const and f(c,y)=const to get f(x, y)=const.

Hence, If the partial derivative is equal to zero for all values of x then it indicates that the function is constant.

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the academic planner of a university has stated that at least 35% of the entire student body attends summer school. the correct set of hypotheses for you to test this statement is

Answers

At least 35% of all registered students, according to a university's academic planner, take summer courses. H0:p.35 Ha:p.35 is the appropriate set of hypotheses to test his theory with.

What are the hypotheses?

A hypothesis is a put-forth explanation for a phenomenon (plural: hypotheses).

A hypothesis must be testable according to the scientific method for it to be considered a scientific hypothesis.

Scientific hypotheses are typically based on prior observations that cannot be adequately explained by the current body of knowledge.

For example, a university's academic planner estimates that at least 35% of all enrolled students attend summer classes. The proper set of hypotheses to use in order to test his theory is H0:p.35 Ha:p.35.

Despite the frequent confusion between the terms "hypothesis" and "theory," a scientific hypothesis differs from a scientific theory.

A working hypothesis is an accepted theory that has been tentatively supported and is put up for further investigation.

Therefore, at least 35% of all registered students, according to a university's academic planner, take summer courses. H0:p.35 Ha:p.35 is the appropriate set of hypotheses to test his theory with.

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PLEASE HELP ASAPPP !!! WILL GIVE BRAINLIEST AND 5.0 STAR RATING

Answers

Answer: $13,000

Step-by-step explanation:

All of the following are steps in derivative classification EXCEPT:
Seek additional guidance to resolve uncertainty
Analyze material to be classified
Use authorized sources for guidance
Make recommendations for others to mark the new document

Answers

Option d). Making the initial determination for all the information requires protection among the unauthorized disclosure where the interest of security is not a derivative classification.

Derivative Classification is the incorporating, paraphrasing, restating, or producing in new shape data this is already categorized, and staining the newly evolved fabric constant with the class markings that practice to the supply data. Copying or duplicating present categorized data, which includes photocopying a document, isn't by-product class.

Derivative classifiers are accountable for preserving the safety and integrity of categorized data. These people should own information concerning the difficulty count number of the categorized data, in addition to class control and staining techniques. Typically, there are 4 classifications for data: public, internal-only, confidential, and restricted. Let's study examples for every of those.

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Correct Question:

All of the following are steps in derivative classification EXCEPT:

a). Seek additional guidance to resolve uncertainty

b). Analyze material to be classified

c). Use authorized sources for guidance

d). Make recommendations for others to mark the new document

What is the value of x? Enter your answer as a decimal.
Triangle M N P with segment A B parallel to segment N P and A is between M and N and B is between M and P. M N equals 46.2 centimeters, A N equals 14 centimeters, M P equals 72.6 centimeters, and M B equals x.

Answers

The value of MB equal x which is equal to 50.6 as the two triangles are similar triangles.

Based on the given information, MNP has a segment AB which is parallel to NP. As AB and NP are parallel and MN is transverse. Therefore, ∠MAB ≅ ∠MNP.  According to Angle – Angle property of similarity, triangle MNP and triangle MAB are similar triangle. If two pairs of corresponding angles are congruent in two triangles, then the triangles are similar. The corresponding sides of similar triangles will be in the same ratio. Hence,

MA/MN = MB/MP

MA = MN – AN = 46.2 – 14 = 32.2

Hence,

32.2/46.2 = x/72.6

x = 50.6

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Compare 0.3 and 0.8 using >,=, or <. Draw a model or number line to support your solution

Answers

0.8 is greater than 0.3 an image is attached to show the plotting on the number line.

What is a number line?

A number line is a one-dimensional horizontal line where we can represent any real number. The origin of the number line is represented by zero left to it are all negative real numbers and right to it are all positive real numbers.

Given, are two decimals 0.3 and 0.8.

We know 0.3 lies between 0 and 0.5 and 0.8 lies between 0.5 and 1.

∴ 0.8 > 0.3.

The plotting of the numbers is attached in the image.

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endure all, a manufacturer of batteries claims that the lifetime of their batteries is normally distributed with a mean of 500 hours and a standard deviation of 40 hours. what is the probability that an endure all battery selected at random will last more than 550 hours? a) 0.1056 b) 0.1151 c) 0.8849 d) 0.8944 e) 0.1587 f) none of the above.

Answers

The probability that an Endure All battery selected at random will last more than 610 hours is 0.1056.

What is a normal distribution?

A data collection with a normal distribution is put up so that the majority of the values cluster in the middle of the range and the remaining values taper off symmetrically in either direction.

Here, we have

Normally distributed with a mean of 500 hours and a standard deviation of 40 hours.

We have to calculate the probability that an endure all battery selected at random will last more than 550 hours.

Given that μ = 500, σ = 40, for x > 550

z = 550-500/40

z = 1.25

From the normal distribution table, P(z > 1.25) = 1 - P(z < 1.25) = 1 - 0.8944 = 0.1056

Hence, The probability that an Endure All battery selected at random will last more than 610 hours is 0.1056.

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help please! (i'll give brainliest! <3)
Suppose 30= a × 60.



What is 30/a?

Answers

Answer:

[tex]\huge\boxed{\sf 60}[/tex]

Step-by-step explanation:

Given equation:

30 = a × 60

Divide both sides by 60

30/60 = a

0.5 = a

a = 0.5

Now,

Value of 30/a:

= 30/0.5

= 60

[tex]\rule[225]{225}{2}[/tex]

I REALLY NEED HELP!!
Find a point on the line and the line's slope.

y = 3 + 3 ( x + 4 )


point on the line: (____,____)


slope: _____

Answers

The point on the line is (-4, 3) and the slope of the line is m=3

What is meant by slope?

Divide the "vertical change" by the "horizontal change" between (any) two distinct points on the line to find the slope.

The slope's absolute value is used to calculate the steepness, incline, or grade of a line. A line's direction can be increasing, decreasing, horizontal, or vertical.

If a line runs up from left to right, it is growing. The slope is positive, implying that m>0.

If a line falls from left to right, it is diminishing. m<0 is the slope.

A horizontal line has a slope of zero. This is a function that never changes.

Given,

y=3+3(x+4)

y-3=3(x-(-4))

Here, the point on the line is (-4, 3)

And the slope of the line is m=3

Hence, the point on the line is (-4, 3) and the slope of the line is m=3

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Help quick! It's FLVS!
Compare the square root of 26 and twenty eight sixths using >, <, or =.

twenty eight sixths is less than the square root of 26
the square root of 26 is less than twenty eight sixths
twenty eight sixths is greater than the square root of 26
the square root of 26 is equal to twenty eight sixths

Answers

Twenty eight sixths is less than the square root of 26 which is  [tex]\sqrt[6]{28}[/tex] < [tex]\sqrt{26}[/tex]

What is the square root of a number?

Square root of a number is a value, which on multiplication by itself, gives the original number. The square root is an inverse method of squaring a number. Hence, squares and square roots are related concepts.

checking for square root of:

 [tex]\sqrt[6]{28}[/tex]    = 1.74

[tex]\sqrt{26}[/tex] = 5.09

which means 1.74 < 5.09

Therefore   [tex]\sqrt[6]{28}[/tex]  < [tex]\sqrt{26}[/tex]

In conclusion twenty eight sixths is less than the square root of 26 (   [tex]\sqrt[6]{28}[/tex]  < [tex]\sqrt{26}[/tex])

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what is 2(x-1) + 5 = x + 7

Answers

Answer:

x = 4

Step-by-step explanation:

Look what the attachment

x=4

Step-by-step explanation:

2x-2+5=x+7

2x+3=x+7

2x-x=7-3

x=4

endure all, a manufacturer of batteries claims that the lifetime of their batteries is normally distributed with a mean of 500 hours and a standard deviation of 40 hours. what is the probability that an endure all battery selected at random will last more than 610 hours? a) 0.0228 b) 0.9970 c) 0.0030 d) 0.9965 e) 0.0035 f) none of the above.

Answers

The probability that an endure all battery selected at random will last more than 610 hours is 0.3%

What is the Z score?

A Z-score is a metric that quantifies how closely a value relates to the mean of a set of values. Standard deviations from the mean are used to measure Z-score. If a Z-score is 0, it indicates that the data point's score is identical to the mean score.

Z score is used to determine by how many standard deviations the raw score is above or below the mean, The z score is given by:

[tex]z = \frac{x - \mu}{\sigma}[/tex]

where,

x = raw score

μ = mean

σ = standard deviation

Given that μ = 500, σ = 40, for x > 610:

z = (610 - 500) / 40

= 2.75

From the normal distribution table, P(z > 2.75) = 1 - P(z < 2.75) = 1 - 0.9970 = 0.0030 = 0.3%

Hence, the probability that an endure all battery selected at random will last more than 610 hours is 0.3%

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Which is the solution for the system of
linear equations graphed below?
A. (-4,3)
B. (0, 1)
C. (0, 3)
D. (-3, 4)

Answers

Answer:

D (-3,4)

Step-by-step explanation:

This is the point that the two line intersect.  From (0.0) go three units left and 4 units up.  That is where the lines cross.

express each statement in logic using the variables: p: it is windy. q: it is cold. r: it is raining. (a) it is windy and cold. (b) it is windy but not cold. (c) it is not true that it is windy or cold. (d) it is raining and it is windy or cold. (e) it is raining and windy or it is cold. (f) it is raining and windy but it is not cold.

Answers

The given statements can be expressed as

a) [tex]$p \land q$[/tex].

b) [tex]$p \land\neg q$[/tex]

c) [tex]$\neg(p \lor q)$[/tex]

d) [tex]$p \land (q \lor r)$[/tex]

e) [tex]$r \land (p \lor q)$[/tex]

f)   [tex]$r \land (p \land \neg q)$[/tex]

What is a logical expression?

A statement that can be true or false is referred to as a logical expression Depending on the values of p and q, it can be true or false. This is distinct from a mathematical expression, which represents a true statement.

The given statements are

p: it is windy.

q: it is cold.

r: it is raining.

Now

a) it is windy and cold

   This statement can be expressed as - [tex]$p \land q$[/tex].

(b) it is windy but not cold.

     This statement can be expressed as - [tex]$p \land\neg q$[/tex]

(c) it is not true that it is windy or cold. - [tex]$\neg(p \lor q)$[/tex]

(d) it is raining and it is windy or cold.  - [tex]$p \land (q \lor r)$[/tex]

(e) it is raining and windy or it is cold. [tex]$r \land (p \lor q)$[/tex]

(f) it is raining and windy but it is not cold. [tex]$r \land (p \land \neg q)$[/tex]

Hence, the given statements can be expressed as

a) [tex]$p \land q$[/tex].

b) [tex]$p \land\neg q$[/tex]

c) [tex]$\neg(p \lor q)$[/tex]

d) [tex]$p \land (q \lor r)$[/tex]

e) [tex]$r \land (p \lor q)$[/tex]

f)    [tex]$r \land (p \land \neg q)$[/tex]

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What is enough information to prove u || v ?

Answers

Answer:not a lot

Step-by-step explanation:

Consider the following model for the populations of rabbits and wolves (where R is the population of rabbits and W is the population of wolves).
dR/dt=0.08R(1-0.00032R)-0.00109RW
dW/dt=-0.04W+0.0001RW
Find all the equilibrium solutions:
(a) In the absence of wolves, the population of rabbits approaches [?] .
(b) In the absence of rabbits, the population of wolves approaches [?].
(c) If both wolves and rabbits are present, their populations approach r=[?] and w=[?] .

Answers

Wolves absence would lead the rabbit population to become stable at 5,000.

Step 1. Concept

If there is a missing variable that should be in the system, set that particular variable to zero and make the necessary conclusion.

Step 2. Given,

dR/dt = 0.08R(1 - 0.00032R) - 0.001RW

dW/dt = −0.02W + 0.00002RW

Step 3. Calculation

The transformed equations of populations of rabbit and wolves will be

dR/dt = 0.08R(1 - 000.2R) - 0.001RW

dW/dt = −0.02W + 0.00002RW

Let's check the rabbit population in the absence of wolves(W) to 0

Thus,

Differential equation dR/dt

dR/dt = 0.08R(1 - 000.2R) - 0.001RW

Take W to equal to O

dR/dt = 0.08R(1 - 000.2R) - 0.001R(0)

dR/dt = 0.08R(1 - 000.2R)

When,

dR/dt = 0 we have R = 0 or R = 5,000

This,

R = 5,000 becomes the equilibrium point in the absence of wolves

Then,

0 < R < 5,000, dR/dt > 0

For R, let's estimate a value rise of the rabbit population to 5,000

Then,

R > 5,000, dR/dt < 0

Judging from the value if R, we infer a deduction in the rabbit population by 5,000

Thus,

We can conclude that wolves absence would lead the rabbit population to become stable at 5,000.

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when an analysis of variance is performed on samples drawn from k populations, the mean square between treatments (mstr) is . a. sstr/k b. sstr/nt c. sstr/(k – 1) d. sstr/(nt – 1)

Answers

When data from k populations are utilized in an analysis of variance, the mean square between treatments (MSTR) = (C) SSTR/(k - 1).

What is an analysis of variance?

A statistical method called analysis of variance (ANOVA) is used to examine variations in response variables (continuous random variables) evaluated under settings with discrete factors (classification variables, often with nominal levels).

Analysis of Variance is referred to as ANOVA.

Ronald Fisher created a statistical test in 1918, and it has been in use ever since.

Simply put, an ANOVA analysis determines if the means of three or more independent groups differ statistically.

The mean square between treatments (MSTR) equals SSTR/ when samples from k populations are used in an analysis of variance (k - 1).

Therefore, when data from k populations are utilized in an analysis of variance, the mean square between treatments (MSTR) = (C) SSTR/(k - 1).

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Correct question:
When an analysis of variance is performed on samples drawn from k populations, the mean square between treatments (MSTR) is _____.

a. sstr/k

b. sstr/nt

c. sstr/(k – 1)

d. sstr/(nt – 1)

An adult ticket for a magic show costs $18. A children's ticket for the magic show costs $12.
The number of adult tickets sold is 3 times the number of children's tickets sold. A total of $1980 is taken in for ticket sales.
How many of each type of ticket is sold?

answers

50 adult tickets and 150 children's tickets

30 adult tickets and 90 children's tickets

150 adult tickets and 50 children's tickets

90 adult tickets and 30 children's tickets

Answers

The number of each type of ticket is sold is D. 90 adult tickets and 30 children's tickets

What will the number of tickets be?

From the information given, an adult ticket for a magic show costs $18. A children's ticket for the magic show costs $12.

The number of adult tickets sold is 3 times the number of children's tickets sold. A total of $1980 is taken in for ticket sales.

Let the number of children tickets = x

Number of adults ticket = 3x

Therefore, this will be illustrated as:

18(3x) + 12(x) = 1980

54x + 12x = 1980

66x = 1980

Divide

x = 1980 / 66

x = 30.

Children ticket = 30

Adult tickets = 30 × 3 = 90

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If me and my brother pay for grocerie and the total wa 443 and I pay 243 and he pay 200 but we get paid back 75 each how much hould I get paid

Answers

The total money I have to pay will be 168.

What is the arithmetic operation?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.

If I and my brother pay for groceries and the total was 443.

If i pay 243 and get paid back 75

So the total I paid will be (243 - 75) = 168

Hence, the total money I have to pay will be 168.

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An online music streaming service has a yearly membership fee of $50.88. There is an initial registration fee of $3.00 and the rest is paid monthly. To figure out how much each new member pays each month, solve for m in the equation shown, where m represents the monthly fee.​

Answers

Answer:

m = 3.99

Step-by-step explanation:

50.88 = 3 + 12 * m

50.88 - 3 = 12 * m

m = 47.88 / 12 = 3.99

two ferries simultaneously depart from opposite banks of a river and cross perpendicular to the banks. their speeds are constant, but not equal. the ferries meet 220 yards from the riverbank, and continue along their routes. on their return trips, the ferries meet 100 yards from the other bank. what is the width of the river?

Answers

The width of the river is 1700m

What is the time, distance & speed relation?

Speed is calculated by dividing the distance traveled by the amount of time it took to get there. Divide the distance by the speed to find the passing time. To get the distance, multiply the speed by time.

Let 'x' be the distance from THE far bank where 700 is the distance to the NEAR bank

boat one has travelled 700 (rate = 700/unit time) boat two has travelled   x rate = x / unit time

boat one then travels   x  + 400  more      and boat two travels   700 + (700+x -400) more    when they meet

The time is the same:    

rate x time = distance  

distance/rate = time    

equate the distances divided by the respective rates

(700 + x + 400)/700     =    (  x  +  700     +  (700+x-400) )/x

1100x + x^2 = 1400x + 700000

x^2 - 300x - 700000 = 0                        

quadratic formula yields  x = 1000  

One boat travels 700 the other 1000 when they first meet.....width of the river =   700+ 1000 = 1700 m

Hence, the width of the river is 1700m

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The radius of a circular disk is given as 27 cm with a maximum error in measurement of 0.2 cm.
1) Use differentials to estimate the maximum error in the calculated area of the disk. (Round your answer to two decimal places.)
2)What is the relative error? (Round your answer to four decimal places.)
3)What is the percentage error? (Round your answer to two decimal places.)

Answers

The maximum error in the calculated area of the disk is 33.93 square cm. The relative error is 0.0148. The percentage error is 1.48%.

a. The area [tex]$\mathrm{A}$[/tex] of a circle with radius [tex]$\mathrm{r}$[/tex] is given by the following formula from Geometry:

[tex]$A=\pi r^2$[/tex]

The question provides us the following information:

radius [tex]$r=27 \mathrm{~cm}$[/tex], maximum radius measurement error [tex]$\Delta r=0.2 \mathrm{~cm}$[/tex]

Using linear differentials we get the error in the calculation of the area of this disk [tex]$\Delta A$[/tex] from (1) as follows:

[tex]$\Delta A=2 \pi r \Delta r \Longrightarrow|\Delta A|=2 \pi r|\Delta r|$[/tex]

Using the information from (2) in (3) yields

[tex]$|\Delta A|=2 \pi(27)(0.2)=33.93 \mathrm{~cm}^2 \text {. }$$[/tex]

The maximum error in the calculated area of the disk is 33.93 square [tex]$\mathrm{cm}$[/tex].

b. The relative error is calculated using (1) and [tex]$r=27 \mathrm{~cm}$[/tex] as follows:

Relative Error [tex]$=\frac{|\Delta A|}{A}=\frac{33.93}{\pi\left(27^2\right)}=0.0148$[/tex].

The relative error is 0.0148.

c. The percentage error is the relative error in part b. above multiplied by [tex]$100 \%$[/tex] to give us

Percentage Error [tex]$=100 \% \times$[/tex] Relative Error [tex]$=100 \% \times 0.0148=1.48 \%$[/tex].

The percentage error is [tex]$1.48 \%$[/tex].

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The school cafeteria manager surveys students to determine
which type of juice they prefer at breakfast. The manager
uses the computer to randomly select 250 students to
survey. What type of sampling is the manager using?

Answers

The type of sampling method that the manager used is called; Simple random sampling

What is the method of sampling that is used?

There are different methods of sampling used in statistics and they are;

1. Simple random sampling

2. Systematic sampling

3. Stratified sampling

4. Cluster sampling

5. Convenience sampling.

Now, we are told that the manager uses the computer to randomly select 250 students to survey. This type of sampling method is known as simple random sampling because every single student of that school is chosen randomly, merely by chance. Each student has the same probability of being chosen to be a part of a sample.

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Round to 3 SF
70.782 please urgent

Answers

Answer:

70.8

Step-by-step explanation:

70.782     round the bold 7   to 8   because the number that follows it is >=5

70.8

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