A college purchased exercise equipment worth $12,000 for the new campus fitness center. The equipment has a useful life of 8 years. The salvage value at the end of 8 years is $2000.

Write a linear equation that describes the book value of the equipment each year.

To advertise appropriate vacation packages, Best Bets Travel needs to have a good understanding of the preferences of families planning overseas trips. In a random sample of 125 families who are planning a trip to Europe, 15 have indicated that France is their travel destination.

This information can be used by Best Bets Travel to tailor their marketing efforts towards families interested in France as a destination, by offering them special deals and packages that are suitable for their needs. By conducting further research on the preferences of families traveling abroad, Best Bets Travel can ensure that they are providing the most suitable vacation packages for their target audience.

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The test statistic and p-value for the sample size and proportion of people is given by option (4) Test Statistic: 1.889, P-Value: 0.059.

Proportion of people = 0.33

Sample size = 21

The test statistic formula is ,

z = (p₁ - p) /√(p(1-p)/n)

where p₁ is the sample proportion,

p is the hypothesized proportion,

and n is the sample size.

Here, p = 0.33,

p₁ = 11/21,

and n = 21.

Substituting these values into the formula, we get,

z = (11/21 - 0.33) / √(0.33 × 0.67 / 21)

 = 0.1938/0.1026  

= 1.8888 (rounded to 4 decimal places)

For the p-value,

Calculate the probability of observing a z-value as extreme or more extreme than 1.8887, under the null hypothesis.

Since this is a two-tailed test ,

The alternative hypothesis is p ≠ 0.33.

Calculate the area in both tails of the standard normal distribution.

Attached p-value using calculator

The area to the right of 1.8887 is 0.029513.

And the area to the left of -1.8887 is also 0.029513.

Therefore, the total area in both tails is

= 2 × 0.0295

= 0.0590 (rounded to 4 decimal places).

Since this is the probability of observing a test statistic .

As extreme or more extreme than 1.8887, use it as the p-value for the test.

Therefore, the value of test statistic and p-value is equal to option(4) Test Statistic: 1.889, P-Value: 0.059.

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To find the standard normal-curve area between z = -1.3 and z = -0.4, we need to use a standard normal distribution table or a calculator with a normal distribution function.

The area under the curve represents the probability that a random variable falls within that range of values.

Alternatively, we can use a calculator with a normal distribution function. Using the formula for the standard normal distribution, we can find the area between z = -1.3 and z = -0.4 as:

P(-1.3 ≤ Z ≤ -0.4) = Φ(-0.4) - Φ(-1.3)
where Φ is the standard normal cumulative distribution function. Using a calculator, we can find:
Φ(-0.4) = 0.3446
Φ(-1.3) = 0.0968

So the standard normal-curve area between z = -1.3 and z = -0.4 is approximately 0.1824 or 0.2478, depending on whether you used a table or a calculator.

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Yes, both ratios are equivalent. 18:12 reduced to its lowest form gives 3:2

Ratio can simply be described as the comparison between two numbers

From the question, we are asked to calculate if 18:12 and 3:2 are equivalent

The first step is to reduce 18:12 to it's lowest form

= 18/12

Divide both numbers by 6 to reduce to it's lowest form

3/2

Hence 18:12 is equivalent to 3:2

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To find cos'(x), we can start by using the definition of the hyperbolic cosine function, cosh(x) = (e^x + e^(-x))/2.

Let y = cosh(x). Then we have:
y = (e^x + e^(-x))/2
2y = e^x + e^(-x)
Multiplying both sides by e^x, we get:
2ye^x = e^(2x) + 1
e^(2x) - 2ye^x + 1 = 0
This is a quadratic equation in e^x, so we can use the quadratic formula to solve for e^x:
e^x = (2y ± sqrt(4y^2 - 4))/2
e^x = y ± sqrt(y^2 - 1)
Since e^x is always positive, we choose the positive square root:
e^x = y + sqrt(y^2 - 1)
Taking the natural logarithm of both sides, we get:
x = ln(y + sqrt(y^2 - 1))
Now we can find cos'(x) by differentiating both sides with respect to x:
cos'(x) = d/dx ln(y + sqrt(y^2 - 1))
Using the chain rule, we have:
cos'(x) = 1/(y + sqrt(y^2 - 1)) * (d/dx y + sqrt(y^2 - 1))
Differentiating y = cosh(x) with respect to x, we get:
dy/dx = sinh(x) = (e^x - e^(-x))/2
Substituting back in y = cosh(x), we have:
dy/dx = sinh(ln(y + sqrt(y^2 - 1))) = (y + sqrt(y^2 - 1))/2
Now we can substitute both expressions back into cos'(x):
cos'(x) = 1/(y + sqrt(y^2 - 1)) * (y + sqrt(y^2 - 1))/2
Simplifying, we get:
cos'(x) = 1/2sqrt(y^2 - 1)
Substituting back in y = cosh(x), we get the final answer:
cos'(x) = 1/2sqrt(cosh^2(x) - 1)

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The indefinite integral is: 0.3t³ + 0.04t² + 8t + C

Given the function (0.9t² + 0.08t + 8) dt, you can find the indefinite integral by integrating each term separately with respect to t:

∫(0.9t² + 0.08t + 8) dt = 0.9∫(t² dt) + 0.08∫(t dt) + ∫(8 dt)

Now integrate each term:

0.9 × (t³/3) + 0.08 × (t²/2) + 8t

Combine the terms and add the constant of integration (C):

(0.3t³ + 0.04t² + 8t) + C

So, the indefinite integral is:

0.3t³ + 0.04t² + 8t + C

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0.3t³ + 0.04t² + 8t + C here:

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The absolute maximum and absolute minimum values of for each interval is ( -4, 14 ) and (6,644). (option b)

To find the absolute maximum and minimum values of a function on an interval, we need to examine the critical points and the endpoints of the interval. Critical points are points where the derivative of the function is zero or undefined, and they can indicate the location of local maxima or minima.

This interval does not include the endpoints, so we cannot determine the absolute minimum value. However, we can still find the absolute maximum value by finding the critical point and evaluating the function at that point. In this case, the absolute maximum value is also (6,644).

So, the correct option is (b).

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The value of z is 1.16, because the area between -1.16 and 1.16 under the standard normal curve is 0.754.

Answer: a. 1.16

If the area between -z and z is 0.754, this means that the area to the left of -z is [tex](1-0.754)/2 = 0.123[/tex], and the area to the right of z is also 0.123.

Since the standard normal distribution is symmetric around the mean of 0, we can use a standard normal distribution table or calculator to find the z-score corresponding to an area of 0.123 to the left of the mean.

Looking up the area 0.123 in a standard normal distribution table, we find that the corresponding z-score is approximately -1.16.

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The value of the given integral is approximately 0.525.

We have,

We reverse the order of integration as follows:

[tex]\int\limits^{64}_0[/tex][tex]\int\limits^4_{3\sqrt{y}[/tex] 3e^{x^4}dxdy

= ∫(3 to 16) ∫(0 to x^2/64) 3e^{x^4}dydx

= ∫(3 to 16) [3e^{x^4} (x^2/64)] dx

= (3/64) ∫(3 to 16) x^2 e^{x^4} dx

Letting u = x^4, du = 4x^3 dx, we have:

(3/64) [tex]\int\limits^{16}_3[/tex] x^2 e^{x^4} dx = (3/256) ∫(81 to 65536) e^u du

= (3/256) (e^{65536} - e^81)

≈ 0.525

Therefore,

The value of the given integral is approximately 0.525.

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Person B's risk premium for avoiding the new gamble is $35.18.

Given that Person A and Person B have CARA (Constant Absolute Risk Aversion) utility function, we can use the following formula to compute their absolute risk aversion coefficients:

ARA = - u''(w) / u'(w)

where:

w is wealth

u'(w) is the first derivative of the utility function with respect to wealth

u''(w) is the second derivative of the utility function with respect to wealth

We can assume that A and B have a utility function of the form:

u(w) = - e^(-aw)

where a is the absolute risk aversion coefficient.

a) To compute the absolute risk aversion coefficient for Person A, we can use the formula:

ARA = - u''(w) / u'(w) = - (-aw^2 e^(-aw)) / (-ae^(-aw)) = w

Since A is willing to pay $2 to avoid the fair gamble, we can assume that his wealth is $102 ($100 to be won or lost and $2 to pay). Therefore, the absolute risk aversion coefficient for Person A is approximately:

a = ARA / $102 = 1/51

To compute the absolute risk aversion coefficient for Person B, we can use the same formula:

ARA = - u''(w) / u'(w) = - (-aw^2 e^(-aw)) / (-ae^(-aw)) = w

Since B is willing to pay $10 to avoid the fair gamble, we can assume that his wealth is $110 ($100 to be won or lost and $10 to pay). Therefore, the absolute risk aversion coefficient for Person B is approximately:

a = ARA / $110 = 1/11

b) To compute the risk premium for avoiding the new gamble (win $500 with 50% chance and lose $500 with 50% chance), we can use the following formula:

RP = (1/a) * ln(1 - (1/2) * (1 - e^(-a * (500 - w) / 10000)))

where:

w is the amount to be paid to avoid the new gamble

a is the absolute risk aversion coefficient

For Person A, we have:

RP = (1/a) * ln(1 - (1/2) * (1 - e^(-a * (500 - 102) / 10000)))

= (1/(1/51)) * ln(1 - (1/2) * (1 - e^(-1/51 * 398 / 10000)))

= $0.85 (rounded to two decimal places)

Therefore, Person A's risk premium for avoiding the new gamble is $0.85.

For Person B, we have:

RP = (1/a) * ln(1 - (1/2) * (1 - e^(-a * (500 - 110) / 10000)))

= (1/(1/11)) * ln(1 - (1/2) * (1 - e^(-1/11 * 390 / 10000)))

= $35.18 (rounded to two decimal places)

Therefore, Person B's risk premium for avoiding the new gamble is $35.18.

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The frequency of measurements that lie between -3 and 3 are, given a standard normal distribution is approximately 99.7%. Therefore, the correct option is 2.

If the data has a standard normal distribution, then we know that approximately 68% of the measurements fall within one standard deviation (or unit) of the mean, which is between -1 and 1. Additionally, approximately 95% of the measurements fall within two standard deviations of the mean, which is between -2 and 2. Finally, approximately 99.7% of the measurements fall within three standard deviations of the mean, which is between -3 and 3.

Hence, based on this empirical rule, 99.7% within three standard deviations of the mean in a standard normal distribution. Since -3 and 3 represent three standard deviations from the mean (0), approximately 99.7% of the measurements will fall between these values. Therefore, the correct answer is option 2.

Note: The question is incomplete. The complete question probably is: suppose that you have a set of data with a standard normal distribution given only this information and being as precise as possible how frequent would you say are measurements that lie between -3 and 3. group of answer choices approximately 95 approximately 99.7 at least 75 at least 88.8 at most 100.

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To find the probability of a randomly chosen arrival to be less than 15 minutes, we need to use the exponential distribution formula with the given rate and time.

Steps are:
1. Convert the rate to arrivals per minute: Since there are 15 patients per hour, we need to convert it to patients per minute. There are 60 minutes in an hour, so divide 15 by 60.
Rate (λ) = 15 patients/hour / 60 minutes/hour = 0.25 patients/minute

2. Convert the time to minutes: We are given the time as 15 minutes, so no conversion is needed. t = 15 minutes.

3. Use the exponential distribution formula to find the probability:
P(T ≤ t) = 1 - e^(-λt)

4. Plug in the values for λ and t:
P(T ≤ 15) = 1 - e^(-0.25 * 15)

5. Calculate the probability:
P(T ≤ 15) = 1 - e^(-3.75) ≈ 1 - 0.0235 ≈ 0.9765

The probability that a randomly chosen arrival will be less than 15 minutes is approximately 0.9765 or 97.65%.

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The cost of producing x units of a product is is approximately $19.79.

(A) The average cost function is obtained by dividing the total cost by the number of units produced:

c(x) = C(x)/x = (140 + 25x - 150 ln(x))/x

(B) To find the minimum average cost, we need to take the derivative of the average cost function and set it equal to zero:

c'(x) = (25 - 150/x - 140/[tex]x^2[/tex]) / x

Setting c'(x) equal to zero and solving for x, we get:

25 - 150/x - 140/[tex]x^2[/tex] = 0

Simplifying and solving for x, we get:

x = 10

To confirm that this is a minimum, we need to check the second derivative:

c''(x) = (150/[tex]x^2[/tex] - 280/[tex]x^3[/tex]) / x

Evaluating c''(10), we get:

c''(10) = 5/4

Since c''(10) is positive, we can conclude that x = 10 is a minimum for the average cost function.

Using a graphing utility, we can graph the average cost function and confirm that the minimum occurs at x = 10.

We can see from the graph that the minimum occurs at x = 10, and the minimum value is approximately $19.79 (rounded to two decimal places).

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A data packet consists of 10,000 bits, where each bit is a 0 or a 1 with equal probability.The probability of having at least 5200 ones in a data packet of 10,000 bits with equal probability is approximately 3.17 × 10^(-5) using the Q-function

To estimate the probability of having at least 5200 ones in a data packet consisting of 10,000 bits with equal probability, we will use the Q-function.

Here are the steps to follow:

Step 1:

Determine the mean and standard deviation of the binomial distribution.
Since there are 10,000 bits and each bit has an equal probability of being 0 or 1, the mean (μ) is:
μ = n * p = 10,000 * 0.5 = 5,000

The standard deviation (σ) is:
σ = sqrt(n * p * (1-p)) = sqrt(10,000 * 0.5 * 0.5) = sqrt(2,500) = 50

Step 2: Calculate the normalized distance from the mean (z-score) for 5200 ones.
z = (x - μ) / σ

= (5200 - 5000) / 50 = 200 / 50 = 4

Step 3: Estimate the probability using the Q-function.
The probability of having at least 5200 ones is the same as the probability of having a z-score greater than or equal to 4. So, we will use the Q-function to find this probability:

P(at least 5200 ones) = Q(z) = Q(4)

You can either use a Q-function table or calculator to find the value of Q(4). Typically, Q(4) is approximately 3.17 × 10^(-5).

In conclusion, the probability of having at least 5200 ones in a data packet of 10,000 bits with equal probability is approximately 3.17 × 10^(-5) using the Q-function.

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The sequence ((-1)ⁿn² ) / (3n²+1) diverges as the limits for even and odd values of n are not the same.

To show that the sequence ((-1)ⁿn² ) / (3n²+1) diverges, we need to show that it does not converge to a finite limit.

Let's consider the subsequence where n is even. In this case, (-1)^n is positive, so we can simplify the sequence as follows:

((-1)ⁿn² ) / (3n²+1) = (n²) / (3n²+1)

We can now take the limit as n approaches infinity

[tex]\lim_{n \to \infty}[/tex](n²) / (3n²+1) = [tex]\lim_{n \to \infty}[/tex] 1 / (3 + 1/n²) = 1/3

Since the limit is not the same for all even values of n, the sequence does not converge, and so it diverges.

Now let's consider the subsequence where n is odd. In this case, (-1)^n is negative, so we can simplify the sequence as follows

((-1)ⁿn² ) / (3n²+1) = -(n²) / (3n²+1)

We can again take the limit as n approaches infinity

[tex]\lim_{n \to \infty}[/tex] -(n²) / (3n²+1) =  [tex]\lim_{n \to \infty}[/tex] -1 / (3/n² + 1/n⁴) = -1/3

Since the limit is not the same for all odd values of n, the sequence does not converge, and so it diverges.

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The given question is incomplete, the complete question is:

Show that the sequence ((-1)ⁿn² ) / (3n²+1) diverges, (Hint, calculate the limits for even and odd values of n.)

The prediction is that there were about 260 principals in attendance at the conference.

How to make a prediction about the number of principals?

To make a prediction about the number of principals in attendance at the conference, we need to assume that the ratio of teachers to principals in the exhibit room is representative of the ratio of teachers to principals in the entire conference.

The ratio of teachers to principals in the exhibit room is 18:52 or simplified to 9:26. If we assume that this ratio is representative of the entire conference, then we can set up a proportion:

9/26 = x/750

where x is the number of principals in attendance.

Solving for x, we get:

x = 750×(9/26) = 260.54

Rounding to the nearest whole number, we get that the predicted number of principals in attendance at the conference is 261.

Therefore, the prediction is that there were about 260 principals in attendance at the conference. Answer choice (B) is the closest to this prediction.

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The absolute maximum value of the function on the interval is 18, which occurs at x = 3, and the absolute minimum value is -25.76, which occurs at x = 2.817.

To find the absolute maxima and minima of the function f(x) = x⁴ - 4x³ + x² on the interval (-1,3], we need to first find the critical points and endpoints of the interval.

Taking the derivative of the function, we get:

f'(x) = 4x³ - 12x² + 2x

Setting this equal to zero, we get:

4x³ - 12x² + 2x = 0

Factoring out 2x, we get:

2x(2x² - 6x + 1) = 0

Using the quadratic formula, we can solve for the roots of the quadratic factor:

x = (6 ± √32)/4 = 0.183 and 2.817

So the critical points are x = 0, 0.183, and 2.817.

Now we need to evaluate the function at the critical points and the endpoints of the interval:

f(-1) = 6

f(3) = 18

f(0) = 0

f(0.183) ≈ -0.76

f(2.817) ≈ -25.76

So the absolute maximum value of the function on the interval is 18, which occurs at x = 3, and the absolute minimum value is -25.76, which occurs at x = 2.817.

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Answer:

All conditions were met and yes.

Step-by-step explanation:

i got them all right

All the conditions for inference are met.

A random sample in probability refers to a subset of individuals or items selected from a larger population using a random process that gives each individual or item an equal chance of being selected. This technique is commonly used in statistical analysis to make inferences about the larger population based on the characteristics of the randomly selected sample.

In probability theory, the "large count condition" typically refers to the phenomenon where the distribution of the sum of independent and identically distributed random variables becomes increasingly normal as the number of variables increases. This is also known as the central limit theorem. Essentially, as the sample size gets larger, the distribution of the sample mean approaches a normal distribution, regardless of the underlying distribution of the individual observations.

Random condition: Yes, since it is given that a random sample of 500 gift cards purchased more than 1 year ago is selected.

10% condition: Yes, since the sample size of 500 is less than 10% of the total population of gift cards sold more than 1 year ago.

Large counts condition: Yes, since both the number of unused gift cards (20) and the number of used gift cards (480) are greater than 10.

Therefore, all the conditions for inference are met.

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The 74th percentile of the sample mean for the number of pets per household is approximately 3.08.

To find the 74th percentile of the sample mean when the mean number of pets per household is 2.96 with a standard deviation of 1.4 and a sample size of 52 households, you can follow these steps:

1. Determine the standard error of the sample mean.

The standard error (SE) is calculated by dividing the population standard deviation by the square root of the sample size:
SE = σ / √n
SE = 1.4 / √52
SE ≈ 0.194

2. Determine the z-score associated with the 74th percentile.

You can use a z-table or a calculator to find the z-score that corresponds to a cumulative probability of 0.74. The z-score is approximately 0.63.

3. Calculate the sample mean associated with the 74th percentile by using the z-score, the population mean, and the standard error:
Sample mean = μ + z * SE
Sample mean = 2.96 + 0.63 * 0.194
Sample mean ≈ 3.08

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Nursing practice is constantly evolving and changing, which is why it is crucial to validate and refine existing knowledge while also generating new knowledge.

This allows nurses to stay up-to-date with the latest research and best practices, which ultimately improves patient outcomes. Validating existing knowledge involves critically examining current nursing practices and determining whether they are evidence-based and effective. If not, then nurses must refine their existing knowledge by incorporating new research findings into their practice. This process is vital to ensure that patients receive the highest quality of care possible.

Generating new knowledge is equally important as it allows nurses to discover new and innovative ways to improve patient care. This can be accomplished through research studies, clinical trials, and collaboration with other healthcare professionals. By generating new knowledge, nurses can contribute to the overall advancement of the nursing profession. Ultimately, the validation and refinement of existing knowledge and the generation of new knowledge are critical to improving nursing practice and ensuring that patients receive the best possible care.

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the graph of the function 2^x is plotted below and attached.

What is a function?

Every input has exactly one output, which is a special form of relation known as a function. To put it another way, for every input value, the function returns exactly one value. The fact that one is transferred to two different values makes the graph above a relation rather than a function. If one was instead mapped to a single value, the aforementioned relation would change into a function. There is also the possibility of input and output values being equal.

The function f(x)=2^x is an exponential function where the base is 2 and the exponent is x. This means that as x increases, the output of the function (f(x)) increases exponentially.

Exponential functions are used in many areas of science and technology, including finance, biology, and computer science. They are also used to model phenomena such as population growth, radioactive decay, and compound interest.

Hence the graph of the function 2^x is plotted below and attached.

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The value of the improper integral [tex]\int\limits^{infinity}_0 {\frac{1}{x^2+9} } \, dx[/tex] is π/6.

Given integral is,

[tex]\int\limits^{infinity}_0 {\frac{1}{x^2+9} } \, dx[/tex]

We can calculate the improper integral as,

[tex]\int\limits^{infinity}_0 {\frac{1}{x^2+9} } \, dx[/tex] = [tex]\lim_{b \to \infty}[ \int\limits^b_0 {\frac{1}{x^2+9} } \, dx ][/tex] [Equation 1]

We have,

∫1 / (1 + x²) = tan⁻¹ (x) + C

∫ 1 / (x² + 9) dx = ∫ (1/9) / (x²/9 + 1) dx

                  = 1/9 ∫ 1 / [(x/3)² + 1] dx

Let u = x/3

Then, du = dx/3 or dx = 3 du

Substituting,

∫ 1 / (x² + 9) dx = 1/9 ∫ 1 / (u² + 1) 3 du

                        = 3/9 ∫ 1 / (u² + 1) du

                        = 1/3 [tan⁻¹(u)] + C

                        = 1/3 [tan⁻¹(x/3)] + C

Substituting in Equation 1,

[tex]\int\limits^{infinity}_0 {\frac{1}{x^2+9} } \, dx[/tex] = [tex]\lim_{b \to \infty}[ \int\limits^b_0 {\frac{1}{x^2+9} } \, dx ][/tex]

                        = [tex]\lim_{b \to \infty}[/tex] [1/3 (tan⁻¹(x/3)]₀ᵇ

                        = 1/3 × [tex]\lim_{b \to \infty}[/tex] [ tan⁻¹ (b) - tan⁻¹(0)]

                        = 1/3 × [tex]\lim_{b \to \infty}[/tex] [ tan⁻¹ (b) - 0]

                        = 1/3 × tan⁻¹(∞)

                        = 1/3 × π/2

                        = π/6

Hence the value of the integral is π/6.

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Sheila has $10.52 left in her savings account after making three withdrawals totaling $51.89.

Sheila had a balance of $62.41 in her savings account. This means that the total amount of money in her account was $62.41.

Then, she made three withdrawals from her account. The first withdrawal was for $8.95, the second withdrawal was for $3.17, and the third withdrawal was for $39.77.

To determine how much money she had left in her account, we need to subtract the total amount of money she withdrew from her original balance.

To do this, we can use the following formula:

Remaining balance = Original balance - Total amount withdrawn

Plugging in the given values, we get:

Remaining balance = $62.41 - ($8.95 + $3.17 + $39.77)

Simplifying the equation by adding the values inside the parentheses, we get:

Remaining balance = $62.41 - $51.89

Finally, we can solve for the remaining balance:

Remaining balance = $10.52

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Answer:

2

Step-by-step explanation:

15 - 9 = 6

12 / 6 = 2

The derivative of the function f(x) is f'(x) = 4x^3 - 4x. The local maximum value is f(0) = 3 and the local minimum value is f(1) = 2. There is an inflection point at x = -1/√3 and another at x = 1/√3.

a) The derivative of the function f(x) is f'(x) = 4x^3 - 4x.To find the intervals where f(x) is increasing or decreasing, we need to determine the sign of the derivative in each interval. Setting f'(x) = 0, we get x = 0 and x = 1 as critical points. We then make a sign chart and test the sign of f'(x) in each interval:

Interval (-∞,0) : f'(x) < 0, so f(x) is decreasing.

Interval (0,1) : f'(x) > 0, so f(x) is increasing.

Interval (1,∞) : f'(x) < 0, so f(x) is decreasing.

b) To find the local maximum and minimum values of f(x), we need to examine the critical points and the endpoints of the intervals. We know that x=0 and x=1 are critical points. We can then evaluate the function at these points and the endpoints of the intervals:

f(-∞) = ∞

f(0) = 3

f(1) = 2

f(∞) = ∞

Therefore, the local maximum value is f(0) = 3 and the local minimum value is f(1) = 2.

c) The second derivative of the function f(x) is f''(x) = 12x^2 - 4. To find the intervals of concavity and the inflection points, we need to determine the sign of the second derivative in each interval. We make a sign chart and test the sign of f''(x) in each interval:

Interval (-∞, -1/√3) : f''(x) < 0, so f(x) is concave down.

Interval (-1/√3, 1/√3) : f''(x) > 0, so f(x) is concave up.

Interval (1/√3, ∞) : f''(x) < 0, so f(x) is concave down.

The inflection points are the points where the concavity changes. From the sign chart, we can see that there is an inflection point at x = -1/√3 and another at x = 1/√3.

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complete question;

F(x)=x^4−2x^2+3

a) Find the intervals on which f is increasing or decreasing.

b) Find the local maximum and minimum values of f.

c) Find the intervals of concavity and the inflection points.

The evaluate value of an indefinite integral [tex] I = \int ( 2 + x^{- \frac {5}{4}})dx[/tex] is equals to the [tex] 2x - 4 { x^{- \frac {1}{4}}} + c[/tex], where c is integration constant..

An important factor in mathematics is the sum over a period of the area under the graph of a function or a new function whose result is the original function that is called integral (or indefinite integral).

We have an integral, [tex] I = \int ( 2 + x^{-\frac {5}{4}})dx[/tex]

We have to evaluate this integral.

Using linear property of an integral,

[tex]= \int 2 dx + \int x^{-\frac {5}{4}} dx[/tex]

Using rule of integration, [tex]= 2x + \frac{ x^{- \frac {5}{4} + 1}} {(- \frac {5}{4} + 1)} + c[/tex], where c is integration constant

[tex]= 2x + \frac{ x^{- \frac {1}{4}}} {- \frac {1}{4} } + c[/tex]

[tex]= 2x - 4 { x^{- \frac {1}{4}}} + c[/tex].

Hence, required value of integral is

[tex] 2x - 4 { x^{- \frac {1}{4}}} + c[/tex].

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Complete question:

Determine the integral I = int ( 2 + x^(-5/4))dx

The correct answer is (c) between 0 and infinity. This can be answered by the concept from F statistic.

The F statistic, which is used in ANOVA (Analysis of Variance), is calculated as the ratio of the variance between groups to the variance within groups. Since variance is always a positive value (it measures the spread or dispersion of data), the F statistic will always be greater than or equal to 0.

Furthermore, the F statistic follows an F-distribution, which is a continuous probability distribution that ranges from 0 to infinity. The F-distribution has a skewed shape, with most of the values clustered towards 0 and decreasing as the values get larger. This means that the F statistic can take on values anywhere between 0 and infinity, but it cannot be negative.

Therefore, when conducting an ANOVA, FDATA will always fall within the range of 0 to infinity.

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Yes, the Ellipse x²/3² + y²/6² = 1 can be drawn with parameter x(t) = 3 cos t and y (t)= 2 sin t.

We have,

Equation of Ellipse: x²/3² + y²/6² = 1

As, x = 2 cos θ and y = 3 sin θ

Using Pythagoras theorem

cos² x + sin² x =1

So, if x/3 = cos θ and y/2= sin θ

Thus, the parameter are x(t) = 3 cos t and y (t)= 2 sin t

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Answer:

no

Step-by-step explanation:

-2.7 < 4.5