tb mc qu. 5-78 (algo) thane company is interested in establishing the... thane company is interested in establishing the relationship between electricity costs and machine hours. data have been collected and a regression analysis prepared using excel. the monthly data and the regression output follow: month machine hours electricity costs january 2,100 $ 19,000 february 2,500 $ 22,200 march 1,500 $ 14,100 april 2,700 $ 24,200 may 3,400 $ 28,850 june 2,900 $ 23,200 july 3,700 $ 25,350 august 3,100 $ 23,350 september 1,600 $ 16,700 october 3,300 $ 27,200 november 4,300 $ 32,200 december 3,800 $ 28,350 summary output regression statistics multiple r 0.959 r square 0.919 adjusted r2 0.911 standard error 1,558.51 observations 12.00 coefficients standard error t stat p-value lower 95% upper 95% intercept 6,967.32 1,631.91 4.27 0.00 3,331.20 10,603.44 machine hours 5.76 0.54 10.68 0.00 4.56 6.96 based on the results of the regression analysis, the estimate of electricity costs in a month with 1,800 machine hours would be: (rounded to the nearest whole dollar)

Answer:

y = 1/2x+2

Step-by-step explanation:

first find x intercepts : to find x intercept put 0 in y

1/2x+2 = 0

1/2x= -2

x = -4 the graph shows x intercept at 4

next find y intercept : to find y intercept put 0 into x

=1/2*0+2

=2

the graph shows y crosses at 2.

Answer:

y = 1/2x+2

Answer:

the answer is 150

Step-by-step explanation:

The measure of each arc is 30.

The arc of a circle is defined as the part or segment of the circumference of a circle.

Given that, a circle, Chords NO and PQ are congruent. Arc NO measures 4x + 10 and Arc PQ measures 2x + 20.

We know that,

Chord Arcs Theorem :-

If two chords in a circle are congruent, then their intercepted arcs are congruent.

2x+20 = 4x+10

2x = 10

x = 5

Therefore,

2(5) + 20 = 30

Hence, the measure of each arc is 30.

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Net present value is a measure of profitability. The NPV of an investment is the net cash inflow received over the project's life, less the initial cash outflow, adjusted for the time value of money.

A higher NPV means the project is more lucrative. The profitability index measures the benefit-cost ratio of a project and is calculated by dividing the present value of future cash flows by the initial cash outflow. A profitability index greater than one indicates that the project will be profitable, whereas a profitability index less than one indicates that the project will not be profitable.

Calculation of Net Present Value (NPV) of Project AInitial Outlay = $454,000Net annual cash flows = $68,000Discount Rate = 9%Use the PV of an annuity of $1 table to determine the PV of net cash flows.Using the formula for NPV,NPV of Project A = PV of net cash flows – Initial OutlayNPV of Project A = 68,000 × 7.63930 – 454,000NPV of Project A = $56,201.85Calculation of Profitability Index of Project AProfitability Index of Project A = Present value of future cash flows / Initial OutlayProfitability Index of Project A = 68,000 × 7.63930 / 454,000Profitability Index of Project A = 1.14

Calculation of Net Present Value (NPV) of Project BInitial Outlay = $300,000Net annual cash flows = $47,000Discount Rate = 9%Use the PV of an annuity of $1 table to determine the PV of net cash flows.Using the formula for NPV,NPV of Project B = PV of net cash flows – Initial OutlayNPV of Project B = 47,000 × 6.10338 – 300,000NPV of Project B = $37,100.86Calculation of Profitability Index of Project BProfitability Index of Project B = Present value of future cash flows / Initial OutlayProfitability Index of Project B = 47,000 × 6.10338 / 300,000Profitability Index of Project B = 0.96

The NPV and profitability index calculations show that project A is the better investment since it has a higher NPV and profitability index than project B.

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Answer: 0.83,0.82,0.8

After Louis XVI's failed attempts to sabotage the Assembly and to keep the three estates separate, the Estates-General ceased to exist, becoming the National Assembly. It renamed itself the National Constituent Assembly on July 9 and began to function as a governing body and constitution-drafter.

National assembly

The National Assembly was the first revolutionary government of the French Revolution and existed from June 14th to July 9th in 1789. The National Assembly was created amidst the turmoil of the Estates-General that Louis XVI called in 1789 to deal with the looming economic crisis in France.

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Answer: 11/12 meters squared

Step-by-step explanation:

11/3*1/4=11/12

Answer:

Step-by-step explanation:

1 Convert 3 2/3 to 11/3 by multiplying 3 by denominator 3 to get 9 and add to 2.

2 Multiply 11 by 1 = 11 and 4 by 3 for 12

3 Put them back into fraction form 11/12

4 Answer is 11/12 meters.

woah this looks hard

The largest value that should appear on the x-axis assuming that the tick marks will be separated by 5 is 95.

Since the tick marks are separated by 5, we can start with the smallest tick mark at 0 and add 5 for each subsequent tick mark.

To determine the largest value that should appear on the x-axis, we need to find the largest multiple of 5 that is less than or equal to the largest value in the data set. In this case, we don't have any information about the data set, so we can't determine the largest value.

However, we can assume that the x-axis should be long enough to accommodate the largest value that we expect to see. If we assume that the largest value is 100, then the largest multiple of 5 that is less than or equal to 100 is 95.

Therefore, the largest value is 95.

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Answer:

A: (-1,5) B: (-2,-1) C: (8,-1)

Answer:

.......................................

Step-by-step explanation:

Answer:

sorry you forgot to add the graph link in with your question

Step-by-step explanation:

The height of the monument is 570 feet. Since the shadow of the monument and the shadow of the tourist are cast at the same time, their angles of elevation are the same.

To solve this problem, we need to use the concept of similar triangles. We can set up a proportion: (height of Monument) / (length of Monument's shadow) = (height of tourist) / (length of tourist's shadow)

Let x be the height of the Monument. Then we have:

x / 285 = 5 / 2.5

Cross-multiplying, we get:

2.5x = 5 * 285

Simplifying, we get:

x = 570

Therefore, the Monument is 570 feet tall.

To find the height of the monument, we can use the concept of similar triangles. Since the shadow of the monument and the shadow of the tourist are cast at the same time, their angles of elevation are the same.

Set up a proportion using the height and shadow length of the tourist and the monument:

(height of monument) / (shadow of monument) = (height of tourist) / (shadow of tourist)

Let x represent the height of the monument. Then:

x / 285 = 5 / 2.5

Now, solve for x:

x = (5 / 2.5) * 285
x = 2 * 285
x = 570 feet

The height of the monument is 570 feet.

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Answer:

42

Step-by-step explanation:

==========================================

Work Shown:

The given angles are a linear pair, so they are supplementary.

(1+5x)+(3+3x) = 180

1+5x+3+3x = 180

(5x+3x)+(1+3) = 180

8x+4 = 180

8x+4-4 = 180-4 .... subtract 4 from both sides

8x = 176

8x/8 = 176/8 ..... divide both sides by 8

x = 22

------------

Extra info:

1+5x = 1+5*22 = 1+110 = 111

3+3x = 3+3*22 = 3+66 = 69

111+69 = 180, which helps confirm the answer.

Step-by-step explanation:

Hope it helps man ......

Answer:

63.16%

Step-by-step explanation:

\(\frac{12}{19}\)  x 100% = 63.16%

So, 12 is 63.16% of the 19

Dividing the given equation by 25 we get:

Applying the natural logarithm to the above equation we get:

Finally, solving for x we get:

Answer: Option A.

a. No, these probability assignments are not valid.

b.  The reason why these probability assignments are not valid is that the sum of the assigned probabilities exceeds 1.

(a) To determine if the probability assignments are valid, we need to check if the assigned probabilities satisfy two conditions: they must be non-negative, and their sum must equal 1.

Given the assigned probabilities:

P(E1) = 0.35

P(E2) = 0.12

P(E3) = 0.44

P(E4) = 0.20

To check if they are valid, we need to sum up all the probabilities:

Sum of assigned probabilities = P(E1) + P(E2) + P(E3) + P(E4)

= 0.35 + 0.12 + 0.44 + 0.20

= 1.11

The sum of the assigned probabilities is 1.11, which is greater than 1. Since the sum of probabilities should equal 1, these probability assignments are not valid.

(b) The reason why these probability assignments are not valid is that the sum of the assigned probabilities exceeds 1. The sum of probabilities should always equal 1 in a valid probability distribution. In this case, the sum is 1.11, indicating that the probabilities have been assigned incorrectly or there has been an error in the calculation.

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Answer:

32

Step-by-step explanation:

its 32 because the fraction of viseversa .82 = the formal which is 86 so 86.32-96=something.32 WHATEVER THE ANSWER IS 32

Answer:

g(10)=92

Step-by-step explanation:

g(x)=10x-8

To find g(10), substitute x with 10

g(10)=10(10)-8

g(10)=100-8

g(10)=92

I hope this helps!

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Answer:

This should fall under quadratic inequalities and linear programming.

Step-by-step explanation:

The first logical step would ro immediately know that

Whatever they buy must be

\( \leqslant 120\)

So from my understanding the inequality is

4.89h + 6.39b \(\leqslant 120\)

You could divide through by 4.89 to simplify but then it will not be as accurate due to so many decimals. I hope that helps.

The value of the additional data point is 36

To find the value of the additional data point, we can use the concept of the sample mean.

Given the data set: 23, 28, 20, 33, 42, 12, 19, 50, 36, 25, 19.

The sample mean of this data set is 26.5.

To find the value of the additional data point, we can use the formula for the sample mean:

(sample mean) = (sum of all data points) / (number of data points)

In this case, we have 11 data points in the original data set. Let's denote the value of the additional data point as x.

Therefore, we can set up the equation:

26.5 = (23 + 28 + 20 + 33 + 42 + 12 + 19 + 50 + 36 + 25 + 19 + x) / 12

Multiplying both sides of the equation by 12 to eliminate the fraction, we have:

318 = 282 + x

Subtracting 282 from both sides of the equation, we find:

x = 318 - 282

x = 36

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.

The calculated summation value with the message "Summation: " preceding it. The program assumes that the user will provide valid numerical inputs (integers) when prompted.

Here's a Python program that calculates the sum using a loop based on the user's input values for `i` and `k`. The program handles cases where `i` is larger than `k` and continuously asks for proper values until valid inputs are provided.

```python

while True:

   i = int(input("Enter value for i: "))

   k = int(input("Enter value for k: "))

   if i <= k:

       break

   else:

       print("Error: i cannot be greater than k.")

summation = 0

for x in range(i, k+1):

   summation += 2 * x

print("Summation:", summation)

```

In this program, we use a `while` loop to repeatedly prompt the user for values of `i` and `k`. We convert the inputs to integers using `int()` for numerical comparison. If the condition `i <= k` is satisfied, we break out of the loop; otherwise, an error message is displayed, and the loop continues.

Once we have valid values for `i` and `k`, we initialize the `summation` variable to 0 and use a `for` loop with `range(i, k+1)` to iterate through the values of `x` from `i` to `k` (inclusive). We accumulate the sum by adding `2 * x` to `summation` in each iteration.

Finally, we print the calculated summation value with the message "Summation: " preceding it.

Note: The program assumes that the user will provide valid numerical inputs (integers) when prompted.

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Answer:

The angle shown is a straight line

- They always add up to 180 degrees.

So what you should do here is add uo both sides

74 + 69 = 143

Then take it away from 180 degrees to find x

180 - 143 = 37

So x = 37 degrees.

The correct statement is: "The domains of g(x) and f(x) are the same, but their ranges are not the same."

The statement "The domains of g(x) and f(x) are not the same, and their ranges are also not the same" is correct. In general, when considering functions g(x) and f(x) derived from a parent function, the transformations applied to the parent function can affect both the domain and the range. The domain of a function refers to the set of all possible input values, while the range represents the set of all possible output values. Through transformations such as shifts, stretches, compressions, or reflections, the domain and range of a function can be altered. Therefore, it is possible for the domains and ranges of g(x) and f(x) to differ from each other and from the parent function.

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Answer:

m + p >= 100

m >= 40

p >= 10

Step-by-step explanation:

let m = number of mugs

let p = number of plates

Answer:

144yd^2

Step-by-step explanation:

Did this before

Step-by-step explanation:

= (1 + 5z)(-4)

= (1 + 5z) × (-4)

= 1.(-4) + 5z. (-4)

= -4 - 20z