Fit a simple linear regression model to the oxygen purity data
in Table 11-1.
Table 11-1 Oxygen and Hydrocarbon Levels Observation Hydrocarbon Level Number x (%) 1 0.99 2 1.02 1.15 1.29 1.46 1.36 0.87 1.23 1.55 1.40 1.19 1.15 0.98 1.01 1.11 1.20 1.26 1.32 1.43 0.95 234 sor 5 6

Answer:

scCXczxczxs davefrevs rgv sdfasdfadcfa afaFAFaDF

Answer:

The answer is 99,220!!

Step-by-step explanation:

Did you mean to type quotient?

Answer:

32

Step-by-step explanation:

16/x = x/4, then cross multiply:

16 times 4 = 64

x times x = 2x

64 = 2x

/2 /2

32 = x

hope this helps!

this question is very confusing are u trying to find the proportion of Find x in this proportion.

16/x = x/4 if so the answer is 8

​

Step-by-step explanation: because 16 divided by 8 is 2 and 8 divided 4 is 2

‘B’ had a better college entrance exam score due to the higher value of Z-Score.

The Z-score of an observation is the number of standard deviations it falls above or below the mean. Standard deviation is a statistic that is used to measure the dispersion of a dataset relative to its mean and is calculated by doing the square root of the variance.

\(Z=\frac{(observation-mean)}{standard deviation}\)

By putting the values as given in the question,We get,

A's score is (600 - 500) / 200 = 0.5 standard deviation i.e. above the mean.

B's score is (25 - 20) / 5 = 1 standard deviations i.e. above the mean.

Thus ‘B’ had a better score.

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The numbers are as follows, going from lowest to highest:

-4.2, -3.5, -2.1, -1.5, -1, -0.5, 0.5, 3.5, 4.8.

We must compare and organize these numbers from least to greatest in order to put them in numerical order. The two smallest figures, which are -4.2 and -3.5, can be used as a starting point. Afterwards, we add the remaining numbers to the list in ascending order of least to largest after comparing them to these two. We arrive at the list above after continuing this approach.

Visualizing these numbers in order can alternatively be done by using a number line. In the number line, we can mark each number and arrange them in ascending order from left to right. We can see from the number line that the least number is -4.2.

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Answer: 40%

Step-by-step explanation:

The probability of turning over 2 out of 5 letters is 2/5 or 4/10 which is equal 40%

The 3(1/√(x² + y² + z²)) is a nonzero constant, there is no value of p that makes the divergence zero.

To find the divergence of the vector field f = r/r p, we need to compute the dot product of the gradient operator (∇) with f.

The gradient operator in Cartesian coordinates is given by:

∇ = ∂/∂x i + ∂/∂y j + ∂/∂z k

And the vector field f can be written as:

f = r/r p = (xi + yj + zk)/(√(x² + y² + z²)) p

Now, let's compute the dot product:

∇ · f = (∂/∂x i + ∂/∂y j + ∂/∂z k) · [(xi + yj + zk)/(√(x² + y² + z²)) p]

Taking each component of the gradient operator and applying the dot product, we get:

∂/∂x · [(xi + yj + zk)/(√(x² + y² + z²)) p] = (∂/∂x)(x/√(x² + y² + z²)) p

= (1/√(x² + y² + z²)) p

∂/∂y · [(xi + yj + zk)/(√(x² + y² + z²)) p] = (∂/∂y)(y/√(x² + y² + z²)) p

= (1/√(x² + y² + z²)) p

∂/∂z · [(xi + yj + zk)/(√(x² + y² + z²)) p] = (∂/∂z)(z/√(x² + y² + z²)) p

= (1/√(x² + y² + z²)) p

Adding up these components, we have:

∇ · f = (1/√(x² + y² + z²)) p + (1/√(x² + y² + z²)) p + (1/√(x² + y² + z²)) p

= 3(1/√(x² + y² + z²)) p

So, the divergence of f is given by:

div f = 3(1/√(x² + y² + z²)) p

Now, we need to find if there exists a value of p for which div f = 0. Since 3(1/√(x² + y² + z²)) is a nonzero constant, there is no value of p that makes the divergence zero. Therefore, the answer is "dne" (does not exist).

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Answer:

I don't understand the first one

Answer:

The answer is 88%

After 7 seconds the cup is about 88% filled with water.

This is the reason why Option (B) is the correct option.

The correct interpretation of the given interval is that "We are 95% confident that the interval 15.75 < μ < 28.25 contains the population mean commute time in minutes using public transportation."Option (B) is the correct option.Explanation:Confidence intervals tell us about the range of values within which we can expect the true population parameter to lie. Confidence interval is the range within which we believe the population parameter (mean, proportion or standard deviation) lies.A 95% confidence interval implies that if a researcher were to conduct a given study 100 times, 95 of those studies would produce the same interval of estimates.A confidence interval is a range of values, derived from a data sample, within which the true population value is likely to fall with a certain level of confidence. This is the reason why Option (B) is the correct option.

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The equation (5w-13) + (2w+6) + 2(5w+ 15) = p represents the perimeter of a triangle. We need to determine which equation is correctly solved for w.

To find the correct equation solved for w, we need to simplify and solve the given equation step by step. Let's start by simplifying the equation:

(5w-13) + (2w+6) + 2(5w+ 15) = p

First, distribute the 2 to the terms inside the parentheses:

5w - 13 + 2w + 6 + 10w + 30 = p

Combine like terms:

17w + 23 + 30 = p

Combine the constants:

17w + 53 = p

Now, to solve for w, we isolate the variable by subtracting 53 from both sides:

17w = p - 53

Finally, divide both sides by 17 to solve for w:

w = (p - 53)/17

Therefore, the correct equation solved for w is w = (p - 53)/17.

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Answer: x= 30

Step-by-step explanation:

Simplify both sides of the equation. 12(x+6)=18(12)(x)+(12)(6)=18(Distribute) 1x+3=18

Step 2: Subtract 3 from both sides. 12 x+3−3=18−312 x=15

Step 3: Multiply both sides by 2. 2*(12x)=(2)*(15)

x=30

Answer:

x=30

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We have the system of equations

Using substitution, we have that

Solving for x, we have that

but this is a contradiction, therefore the system of equations don't have a solution.

We also can notice this if we graph the equations.

From the graph we see that the equations do not intersect, then the system don't have a solution.

Therefore , the solution to the given problem of force comes out to be (-26.46i-52.92k) Nm.

It can push or pull. Acceleration is caused by unbalanced forces.

The Newton is the symbol for a force (abbreviation is N).The force required to cause a mass of one kilogramme to alter its velocity by one metre per second (m/s) per second is one Newton. The formula is: 1 N = 1 kg m/s2 (kilogram metre per second squared)

Here,

Given :

Along the diagonal of the parallelepiped, a force F acting at a magnitude of F = 165 N is present.

To Calculate moment of force F about point A.

MA=rBXF

={(-600) (-88.2i+132.3j+44.1k)}

=(-52920k - 26460i) Nm

=(-26.46i-52.92k) Nm

Therefore , the solution to the given problem of force comes out to be (-26.46i-52.92k) Nm.

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Answer:

slope = - 2

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (9, 3) and (x₂, y₂ ) = (19, - 17)

m = \(\frac{-17-3}{19-9}\) = \(\frac{-20}{10}\) = - 2

Answer:

380

Step-by-step explanation:

171:45=3,8

3,8*100=380

Answer:

No

Step-by-step explanation:

Any point that aligns on the line of y = 2 is a solution. But (8, -2) falls below that line since the point's y-coordinate is equal to -2, not 2. Hope this helps!

Answer:

  C.  Ian rode less than 1 hour

Step-by-step explanation:

It never hurts to think about what the problem statement is telling you. Ian rode at a speed that would take him 18 miles in 1 hour.

Clearly, Ian would pass the 15-mile mark in a 1-hour ride before an hour had elapsed. If he only rode 15 miles, he rode less than 1 hour.

The actual time Ian rode is given by the relation between speed, time, and distance.

  time = distance/speed

  time = (15 mi)/(18 mi/h) = (15/18) h = 5/6 h

Ian's riding time was 5/6 of an hour, which is less than 1 hour.

Answer:

A. Multiplying by One

Step-by-step explanation:

semoga membantu

Given

milliliters per kilogram per hour

Find

Convert it into teaspoons per pound per day

Explanation

As we know that

1 teaspoon = 5 ml

1 kg = 2.2 pounds

1 hour = 1/24 day

so . 1 ml/kg.hr=

Final Answer

1 milliliters per kilogram per hour is 2.18181818 teaspoons per pound per day

Answer:

p = 20x

hope it's helpful ❤❤❤❤❤

THANK YOU.

Answer: 20x+8

Step-by-step explanation

Got it correct!

Answer: 13/25, 52%, .125, 13%, 1/3, 33%

Step-by-step explanation: Please give brainliest.

Therefore, since there are more moles of HC₂H₃O₂ (0.0833 mol) than NaHCO₃ (0.0595 mol), NaHCO₃ is the limiting reagent.

Division is a mathematical operation used to find the number of times one quantity is contained within another quantity of the same kind. It is the inverse operation of multiplication. In division, the quantity being divided is called the dividend, the number by which it is divided is called the divisor, and the result is called the quotient. Division is denoted by the symbol "÷" or "/", and it is commonly used in arithmetic and algebra to solve problems involving ratios, fractions, and percentages.

Here,

a. To determine which is the limiting reagent, we need to calculate the moles of each reactant and compare them to the stoichiometric ratio in the balanced chemical equation.

First, we need to convert the mass of each reactant to moles:

moles of HC₂H₃O₂ = 5.00 g / molar mass of HC₂H₃O₂

moles of NaHCO₃ = 5.00 g / molar mass of NaHCO₃

Using the molar masses of each compound, we get:

moles of HC₂H₃O₂ = 5.00 g / 60.05 g/mol = 0.0833 mol

moles of NaHCO₃ = 5.00 g / 84.01 g/mol = 0.0595 mol

The stoichiometric ratio of the balanced equation tells us that the ratio of moles of HC₂H₃O₂ to NaHCO₃ is 1:1.

b. To find the theoretical yield, we need to use the balanced chemical equation and the amount of limiting reagent (in moles) to calculate the moles of the product formed, and then convert that to grams using the molar mass of the product. The balanced equation tells us that 1 mole of NaHCO₃ produces 1 mole of CO₂.

moles of CO₂ = moles of NaHCO₃ = 0.0595 mol

mass of CO₂ = moles of CO₂ x molar mass of CO₂

mass of CO₂= 0.0595 mol x 44.01 g/mol = 2.62 g

Therefore, the theoretical yield of CO₂ is 2.62 g.

c. If the percent yield is 68.7%, we can use this percentage to calculate the actual yield. Percent yield is calculated as follows:

percent yield = (actual yield / theoretical yield) x 100

Rearranging this equation, we get:

actual yield = (percent yield / 100) x theoretical yield

actual yield = (68.7 / 100) x 2.62 g

actual yield = 1.80 g

Therefore, the actual yield of CO₂ is 1.80 g.

d. To find a mass of each reactant where neither is the limiting reagent, we can use the stoichiometric ratio of the balanced chemical equation to calculate the maximum amount of product that can be formed from each reactant.

Let's assume we have x grams of HC₂H₃O₂ and y grams of NaHCO₃. The moles of each reactant are:

moles of HC₂H₃O₂ = x / molar mass of HC₂H₃O₂

moles of NaHCO₃ = y / molar mass of NaHCO₃

If neither reactant is limiting, they will react completely according to the stoichiometric ratio of the balanced equation. That is, 1 mole of HC₂H₃O₂ reacts with 1 mole of NaHCO₃ to produce 1 mole of CO₂.

So, to find the maximum amount of CO₂ that can be produced from each reactant, we can calculate the moles of CO₂ produced from 1 mole of each reactant and then convert that to grams using the molar mass of CO₂:

Maximum yield of CO₂ from HC₂H₃O₂:

moles of CO₂ = moles of HC

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The expected number of pap smears that must be inspected before the first abnormality is found is 50, based on a probability of 2 percent or 0.02 as a decimal.

The probability of finding an abnormality in a single pap smear is 2 percent, or 0.02 as a decimal.

Let X be the number of pap smears that must be inspected before the first abnormality is found. X is a discrete random variable that follows a geometric distribution with probability of success p = 0.02.

The expected value of a geometric distribution with probability of success p is given by:

E(X) = 1/p

Therefore, the expected number of pap smears that must be inspected before the first abnormal one is found is:

E(X) = 1/0.02 = 50

So, we expect to inspect 50 pap smears before finding the first abnormal one on average.

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Answer:

²²⁵/₂  servings or 112 ¹/₂ servings

Step-by-step explanation:

assuming that Jennifer will serve ²/₃ of a pound of ice cream per serving, then the maximum amount of servings that she can make = total pounds of ice cream / individual serving of ice cream

= 75 pounds / (²/₃ pound)

= (75 pounds x 3) / 2 pounds

= ²²⁵/₂  servings or 112 ¹/₂ servings

Answer:

the domingo of a grapa consiste of all the input vales show on the x-axis the rango is the set of posible output vales which are show on the y-axis

The given differential equation r' = 1 - r^2, 0 = 1 in polar coordinates has a closed trajectory and a limit cycle at r = 1, which is asymptotically stable.

To find all the closed trajectories and check if they are limit cycles in the given differential equation r' = 1 - r^2, 0 = 1 in polar coordinates, follow these steps:

Step 1: Analyze the given differential equation.
The system is given in polar coordinates as r' = 1 - r^2 and θ' = 1. Since θ' = 1, the angle θ increases linearly with time, and we can focus on the radial part r' = 1 - r^2.

Step 2: Identify equilibrium points.
To find the equilibrium points, we need to find the values of r for which r' = 0. Setting r' = 1 - r^2 equal to 0, we have:

1 - r^2 = 0
r^2 = 1
r = ±1

Step 3: Analyze the stability of the equilibrium points.
For r < 1, we have r' > 0, meaning that r will increase with time.

For r > 1, we have r' < 0, which means that r will decrease with time.

For r = 1, r' = 0, indicating that r is constant.

Step 4: Determine the closed trajectories and limit cycles.
From the stability analysis, we can see that the only closed trajectory is r = 1, as r is constant at this value. Since the radial part is dependent only on r and not on θ, this closed trajectory is a limit cycle.

Step 5: Determine if the limit cycle is asymptotically stable or not.
Since r' > 0 for r < 1 and r' < 0 for r > 1, any trajectory inside the limit cycle r = 1 will move outward towards it, while any trajectory outside the limit cycle will move inward towards it.

Therefore, the limit cycle is asymptotically stable.

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Answer:

The answer is 9.0909

Step-by-step explanation:

n=1  p=.11

mean = 1/0.11 = 9.0909

The mean of X, the number of patients seen until an injection-site reaction occurs is 9.0909.

The mean refers to "the average set of values".

According to the question,

The percentage of patients experiencing injection- site reactions with the current needle is 11%.

Mean = \(\frac{sum of the all values}{Total number of values}\)

Total number of values = 11% = 0.11 and  n = 1.

Mean = \(\frac{1}{0.11}\)

=9.0909.

Hence, the mean of X, the number of patients seen until an injection-site reaction occurs is 9.0909.

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Answer:

\(c = \: \: 0 \: \: \: 1 \: \: 2 \: \: 3 \: \: 5 \: \: 7\)

Step-by-step explanation:

check this pls

but im not sure;-)

pa heart and 5 star

if check po

Answer:

\(C= -2p+5, \text{where slope is} ~-2.\)

Step by step explanation: