At an alpha .01 significance level with a sample size of 7, find the value of the critical correlation coefficient.

"The revenue is always more than the cost," is the incorrect statement in relation to the profit business model. It is untrue that the revenue is always greater than the cost since the cost of manufacturing and providing the service must be considered as well.

The profit business model is a business plan that helps a company establish how much income they expect to generate from sales after all expenses are taken into account. It outlines the strategy for acquiring customers, establishing customer retention, developing the sales process, and setting prices that enable the business to make a profit.

It is important to consider that the company will only make a profit if the total revenue from sales is greater than the expenses. The cost of manufacturing and providing the service must be considered as well. The revenue from selling goods is reduced by the cost of producing those goods.

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Answer:

0.47 miles per hour

Step-by-step explanation:

Nathan needs to make 13 visits to make enough points for a movie ticket.

When Nathan joined, he received 40 reward points. This means that out of the 225 points he needs for a movie ticket, he now only needs:

= 225 - 40

= 185 points

He gets 14.5 points for every visit which means that the number of visits he needs to get to 185 points is:

= Number of points remaining / Number of points per visit

= 185 / 14.5

= 12.76 visits

= 13 visits

Nathan therefore needs at least 13 visits to get enough points.

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The formula for the height above the ground, h(t) is h(t) = 255 sin (π/20 t) + 20.

The amplitude is half the distance between the highest and lowest points, which is (530 - 20)/2 = 255 feet. So A = 255.

The period is 40 minutes, so B = 2π/40 = π/20.

At t = 0 (when we board the Ferris Wheel), we are 20 feet above the ground.

This means there is no phase shift, so C = 0.

The vertical shift is also 20 feet, so D = 20.

Putting it all together, we have:

h(t) = 255 sin (π/20 t) + 20

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The graph of the solution set of the given inequality can be seen in the image at the end.

Here we have the following inequality:

-0.96 ≥ x*0.3

To solve this, we need to isolate the variable x in one of the sides of the inequality.

To do that, we need to divide both sides by 0.3

-0.96/0.3  ≥ x*0.3/0.3

-3.2 ≥ x

So our variable x is smaller than or equal to -3.2

Then the graph will be a closed circle at x = -3.2 and a line that extends to the left side.

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To find the probability that the ratio of the shorter to the longer segment is less than 1/4 when a point is chosen randomly on a line segment of length 'l,' we can consider the following approach.

Let's denote the position of the chosen point by 'x' where 0 ≤ x ≤ l represents the distance from one end of the line segment.

The ratio of the shorter segment to the longer segment will be less than 1/4 if 'x' lies in the interval (0, l/5).

This is because any point within this interval will divide the line segment into two parts such that the shorter segment is less than 1/4 of the longer segment.

The length of the interval (0, l/5) is l/5, and the total length of the line segment is 'l.' Therefore, the probability of choosing a point within the interval (0, l/5) is given by (l/5) / l = 1/5.

Hence, the probability that the ratio of the shorter to the longer segment is less than 1/4 is 1/5 or 0.2.

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Answer:

Each apples contain 90 calories while each bananas contain 105 calories.

Step-by-step explanation:

Let x be the calories of apple and y be the calories of banana:

\(\displaystyle{2x + y = 285}\)

Since an apple has 15 less calories than a banana:

\(\displaystyle{x = y-15}\)

Solve the simultaenous equations; substitute x = y - 15 in 2x + y = 285:

\(\displaystyle{2\left(y-15\right) + y = 285}\\\\\displaystyle{2y-30+y=285}\\\\\displaystyle{3y=285+30}\\\\\displaystyle{3y=315}\\\\\displaystyle{y=105}\)

We know the calories of banana now but we have not known the calories of apple yet. Therefore, substitute y = 105 into x = y - 15:

\(\displaystyle{x=105-15}\\\\\displaystyle{x=90}\)

Hence, the calories of each apples contain 90 calories and the calories of each bananas contains 105 calories.

The cost of points for this mortgage is $3,510 rounded to the nearest dollar if Julie pays 2.25 points.

Cost of house =  $225,000.

Mortgage amount =  $156,000

Fixed-rate = 4.5%

Bank offer rate = 4.25%

Points to pay = 2.25 points

If we assume that one point is equal to 1%, then 2.25 points are equal to 2.25% of the loan amount.

The cost of points for the mortgage can be calculated by the product of the loan amount by 2.25%.

Cost of points = 0.0225 × $156,000

Cost of points = $3,510

Therefore, we can conclude that the cost of points for this mortgage is $3,510 rounded to the nearest dollar.

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The expression for the given statement is 3x-55.

The given statement is ​55 subtracted from three times any number.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

Let the unknown number be x.

Three times any number = 3x

​55 subtracted from three times any number = 3x-55

Therefore, the expression for the given statement is 3x-55.

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Answer:

Sometimes, “I don't know” or “Let me get back to you” just doesn't cut it. ... Most of the time it's no big deal when you don't have a solid answer right away. ... get back to you,” can risk diminishing your credibility–especially if those are your ... Related: 5 Credibility-Busting Responses You Need To Stop Using .

Step-by-step explanation:

Credibility-Busting Responses You Need To Stop Using .

Answer:

330.

Step-by-step explanation:

Count all the way up. The first row is 20, then goes, 22,24,26,28,30,32,34,36,38,40. These are the number of seats for all 12 rows, since we added 2 each row. Add them all together including 20 to get 330 seats. The whole auditorium has 330 seats.

Hope this helps!

As per arithmetic Progression, there are 372 seats in the given auditorium.

"Arithmetic Progression is a sequence of numbers in order, in which the difference between any two consecutive numbers is a constant value."

Given, the auditorium has 20 seats in the first row.

Then, each successive row contains 2.

We can assume it as an arithmetic progression.

Here, the first term(a) is 20.

The common difference(d) is 2.

Total number of terms(n) is 12.

Therefore, the sum of all the terms is

\(= \frac{n}{2}[2a + (n-1)d]\\= \frac{12}{2}[2(20) + (12-1)2]\\= 6[40+(11)2)]\\= 6(40+22)\\= 6(62)\\= 372\)

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Answer:

Step-by-step explanation:

area of the aquare = s^2 = 25cm^2

∴ side = √25

side = 5cm

perimeter = 4 × side

= 4 × 5

∴ perimeter = 20 m

hope this helps

plz mark it as brainliest!!!!!!

Answer:

20cm

Step-by-step explanation:

area = Length x Width with a square we know the length and width are equal so we just work out the square root of 25 which is 5cm. A square has 4 sides so 5x4 = 20cm

Answer:

16 pounds

Step-by-step explanation:

you look at where x is 24 and y is equal to 16

hopes this helps please mark brainliest

Solution

To solve this problem, we only need to equate and solve for H

0.003 is the probability that the number of calls among the 25 that involve a fax transmission exceeds the expected number by more than 2 standard deviations

To calculate the probability that the number of calls among the 25 that involve a fax transmission exceeds the expected number by more than 2 standard deviations.The mean is the expected number of calls involving a fax transmission, while the standard deviation is the measure of variability in the distribution. We then use this information to calculate the probability of exceeding the expected number by more than 2 standard deviations, which can be done using the z-score formula. The z-score for values more than 2 standard deviations away from the mean is 2.33, which corresponds to a probability of 0.003. Thus, the probability that the number of calls among the 25 that involve a fax transmission exceeds the expected number by more than 2 standard deviations is 0.003.

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Answer:

3cm

Step-by-step explanation:

those double hashes on those 5 sides mean they are equal. so essentially you have 5 sides that measure 3/10cm and one side that measures 1 1/2cm.

3/10 * 5 = 15/10 = 1 1/2cm

1 1/2cm + 1 1/2cm = 3cm

Therefore, the evaluated value of `root((34.64 * (0.0023) ^ 2)/((0.0496) ^ 5), 3)` is approximately 0.3263634046.

To evaluate the expression `root((34.64 * (0.0023) ^ 2)/((0.0496) ^ 5), 3)`, we will follow the order of operations (PEMDAS/BODMAS), which instructs us to simplify operations inside parentheses, exponents, multiplication, division, addition, and subtraction.

First, let's simplify the exponents inside the expression:

- (0.0023) ^ 2 = 0.0023 * 0.0023 = 0.00000529

- (0.0496) ^ 5 = 0.0496 * 0.0496 * 0.0496 * 0.0496 * 0.0496 = 0.000005577776

Now, we substitute the simplified values back into the expression:

- `root((34.64 * 0.00000529) / 0.000005577776, 3)`

Next, we perform the division:

- (34.64 * 0.00000529) / 0.000005577776 = 0.03262532014

Substituting the result back into the expression, we have:

- `root(0.03262532014, 3)`

Now, let's calculate the cube root of 0.03262532014:

- cube root of 0.03262532014 ≈ 0.3263634046

It's important to note that due to rounding during intermediate steps, the final answer may not be entirely precise. If you require a more accurate result, it is recommended to carry out the calculations using higher precision or additional decimal places.

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Answer:

The amount she saves is 25% of her income

Step-by-step explanation:

She is paid $11 per hour

She works 9 hours per day

and for 24 days per month

So, she works 9(24) hours per month

= 216 hours per month

Now, she is paid $11 hourly, so for 216 hours,

she will have 11(216) = $2376

Total income = $2376 per month

Saving = $594 per month

As a percentage, we divide the savings by the total income,

savings/(total income) = 594/2376 = 1/4 = 0.25

Hence we get 25%

It would take an echo sounder's ping 88 seconds to make the trip from a ship to the Challenger Deep (10,994 meters) and back. The speed of sound in seawater is 1,500 meters per second, which is used to calculate the round-trip time of the ping.

Given, The depth of Challenger Deep, d = 10,994 meters.

The speed of sound in seawater = 1500 meters per second. Assuming the sound moves at a constant speed, we can calculate the time it takes for a sound to travel 1 meter as follows:

t = d/s, where t = time taken to travel 1 meter, d = distance traveled by sound (in meters), s = speed of sound in seawater (in meters/second)

Substituting the values, we get

t = 10,994/1500 = 7.33 seconds

To find the round-trip time of the ping, we need to double this time, so the total time taken by the ping is 2 × 7.33 = 14.66 seconds. However, the ping travels from the ship to the Challenger Deep and then back to the ship. So, we need to double the time taken by the ping again to account for the return trip. Therefore, the round-trip time of the ping is

=2 × 14.66 = 29.32 seconds. Finally, converting the time into seconds, we get 88 seconds.

Hence, it would take an echo sounder's ping 88 seconds to make the trip from a ship to the Challenger Deep (10,994 meters) and back.

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The given infinite series Σ 4+3^m/5^m converges with sum equal to 19/8.

To determine whether the given series converges or diverges, we can use the ratio test:

| (4 + 3^(m+1) / 5^(m+1)) / (4 + 3^m / 5^m) |

= | (4/5) + (3/5)(3/4)^m+1 |

As the limit of this expression as m approaches infinity is less than 1, by the ratio test, the series converges.

To find the sum of the series, we can use the formula for a convergent geometric series:

Σ ar^n = a / (1-r)

where a is the first term and r is the common ratio.

In this case, a = 4 and r = 3/5. Therefore, the sum of the series is:

4 / (1 - 3/5) = 19/8.

Hence, the given infinite series converges with sum equal to 19/8.

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53= 29t < 343

Step-by-step explanation:

Answer:

53 = 343t-29

Step-by-step explanation:

53 is equal to (53 =)

t times 343 (343t)

29 less than the quantity (-29)

Good luck! :)

Answer:

The answer is x + 33

Step-by-step explanation:

1) Remove parentheses.

\(45 + x - 12\)

2) Collect like terms.

\(x + (45 - 12)\)

3) Simplify.

\(x + 33\)

Therefor, the answer is x + 33.

Answer:

x+33 is your answer

Step-by-step explanation:

45 + (x - 12)

45+x-12

x+45-12

x+33

Answer:

1/7 is the smallest fraction

Answer:

The answer is five and D.

Answer:

E

Step-by-step explanation:

As you can see, A is closest to -4 on the line. Each gaps on the line is 4-0=4, so the point which B on is 4+4=8. Finally, the answer is 8-(4)=12

In order to find the number of weeks w it will take Anita to reach her goal, we need to solve the following equation for w:

So, we can apply the same operations on both sides of the equation, until we isolate the variable w and find its value.

We obtain:

Therefore, Anita will have saved enough money for the snowboard in 5 weeks.

An expected 479,512 duplicates of the book have been offered to date. The principal month of delivery is 38,900 and addresses 8.1% of the absolute number of duplicates offered to date.

On the off chance that the quantity of duplicates sold in the main month of delivery is 38,900 and addresses 8.1% of the absolute number of duplicates offered to date, then, at that point, we can utilize this data to appraise the all out number of duplicates offered to date. To do as such, we partition the quantity of duplicates sold in the primary month by the rate portrayal:

38,900 ÷ 0.081 = 479,512

A book has sold 38,900 duplicates in its most memorable month of delivery. This is viewed as 8.1% of the absolute number of duplicates offered to date. To decide the absolute number of duplicates offered, we can utilize this data to appraise the quantity of duplicates offered to date. To do this, we take the quantity of duplicates sold in the main month and gap it by the rate portrayal of the primary month deals comparable to add up to deals. Partitioning 38,900 by 0.081 provides us with an expected absolute of 479,512 duplicates offered to date. This assessment expects that the pace of deals in the principal month is illustrative of the general deals pattern. In any case, minus any additional data about deals in ensuing months, this assessment ought to be taken with alert.

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When the graph is decreasing, the rectangles give an underestimate and when the graph is increasing, they give an overestimate. These trends are accentuated to a greater extent by areas of the graph that are steeper.

We only need to add up the areas of all the rectangles to determine the area beneath the graph of f. It is known as a Riemann sum. The area underneath the graph of f is only roughly represented by the Riemann sum. The subinterval width x=(ba)/n decreases as the number of subintervals n increases, improving the approximation. Increased sections result in an underestimation while decreasing sections result in an overestimation. We now arrive at the middle rule. The height of the rectangle is equal to the height of its right edges for a right Riemann sum and its left edges for a left Riemann sum. The rectangle height is the height of the top edge's midpoint according to the midpoint rule, a third form of the Riemann sum.

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We do not have enough evidence to conclude that the true mean melting point differs from 95 at a significance level of 0.01.

To determine if the true mean melting point differs from 95, we can use a one-sample t-test with a significance level of 0.01.

The null hypothesis is that the true mean melting point is equal to 95, and the alternative hypothesis is that the true mean melting point is different from 95.

We can calculate the t-statistic using the formula:

t = (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size))

where sample size is 16, sample mean is 94.32, hypothesized mean is 95, and sample standard deviation is the same as the population standard deviation of 1.20.

Plugging in these values, we get:

\(t = (94.32 - 95) / (1.20 / \sqrt{(16)} ) = -2.6667\)

Using a t-distribution table with 15 degrees of freedom (n-1=16-1), and a two-tailed test at a significance level of 0.01, the critical t-value is ±2.947.

Since our calculated t-value of -2.6667 falls within the acceptance region (-2.947 < -2.6667 < 2.947), we fail to reject the null hypothesis.

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Pua will use 13, 1/4 cups of oatmeal.

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

Pua needs 3\(\frac{1}{4}\) cups of oatmeal.

The number of 1/4 cups of oatmeal,

she will use,

= 13/4 ÷ 1/4

= 13

Therefore, she will use 13 cups.

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