the numerator of a certain fraction is nine less than the denominator. if the fraction reduces to (1/7), what is the numerator of the fraction?

Answer:  -2

Step-by-step explanation:

Answer: See below

Step-by-step explanation:

x=-3 y=7

x=-2 y=5

x=-1 y=3

x=0 y=1

x=1 y=-1

x=2 y=-3

x=3 y=-5

You can see the pattern of decreasing by 2 each time so use that if you need any more values

the percentage of racers who did not complete the marathon is 8.3% when rounded to the nearest tenth of a percent.

To find the percentage of racers who did not complete the marathon, we need to divide the number of racers who did not complete by the total number of racers and then multiply by 100 to get a percentage.

Number of racers who did not complete = 12 + 7 = 19

Total number of racers = 230

Percentage of racers who did not complete = (19/230) x 100% = 8.3%

Therefore, the percentage of racers who did not complete the marathon is 8.3% when rounded to the nearest tenth of a percent.

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Answer:

9.4 meters

Step-by-step explanation:

We can use the formula for the volume of a cone:

V = (1/3) * pi * r^2 *h

where V is the volume, r is the radius of the base, and h is the height.

We know the volume and height of the cone, so we can solve for the radius:

240 = (1/3) * pi * r^2 * 5

r^2 = 240 / (pi * 5/3)

r^2 = 45.68

r = sqrt(45.68)

r = 6.76 meters (rounded to two decimal places)

Now we can use the Pythagorean theorem to find the slant height:

x^2 = r^2 + h^2

x^2 = 6.76^2 + 5^2

x^2 = 88.5276

x = sqrt(88.5276)

x = 9.4 meters

Each slice has an exterior edge that measurement roughly 0.6981 feet in length. Hence, the price per slice is around $11.11.

What does measurement and example mean?

Comparison of a parameter with a predetermined reference value is the process called measurement. For instance, when a measurement is represented as 10 kg, kg is the accepted unit of mass and 10 represents the physical quantity's size. Make correction suggestions.

The formula for calculating the arc length of the a sector, which is as follows, may be used to get the measurement of each slice's outer edge:

arc length is equal to (angle/360) x 2r.

when r is the pizza's radius, which is equal to its diameter. When we replace r with 2 feet & angle with 40 degrees, i get:

arc length is (40/360) x 2 x 2 feet, which is rounded to 0.6981 feet with 4 decimal places.

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Answer:

Step-by-step explanation:

 square pyramid. Calculate the unknown defining height, slant height, surface area, side length and volume of a square pyrami

Answer:

Let's denote the first term of the sequence as a, and the common difference between consecutive terms as d.

Then, we know that the fifth term is 5, so:

a + 4d = 5

Similarly, we know that the sixth term is 2.5, so:

a + 5d = 2.5

We can solve this system of equations by subtracting the first equation from the second:

(a + 5d) - (a + 4d) = 2.5 - 5

d = -2.5

Now, we can substitute this value of d into either equation to find the value of a:

a + 4d = 5

a + 4(-2.5) = 5

a - 10 = 5

a = 15

Therefore, the first term of the sequence is 15, and the common difference is -2.5. We can use this to find the value of the second term:

a + d = 15 + (-2.5) = 12.5

Therefore, the second term of the sequence is 12.5.

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Karla's three brothers can buy a maximum of 4 pieces of candy if they divide the money evenly.

What is division?

Division is a mathematical operation that involves splitting a quantity into equal parts or groups. It is one of the four basic arithmetic operations, along with addition, subtraction, and multiplication. Division is denoted by the symbol "÷" or "/", and it is usually expressed as a fraction or a quotient.

To solve this problem, we need to determine the amount of money represented by the shaded region. Here are the steps:

Assuming that each small square represents $0.01 and there are 143 shaded cells, the total amount of money represented by the shaded region is:

143 cells x $0.01/cell = $1.43

Now, we need to divide $1.43 evenly among Karla's three brothers to find the maximum number of pieces of candy each brother can buy.

$1.43 ÷ 3 = $0.476666...

Since we cannot buy fractional pieces of candy, we need to round down to the nearest whole number. Therefore, each of Karla's three brothers can buy a maximum of:

$0.47 ÷ $0.10/piece = 4 pieces of candy

So each of Karla's three brothers can buy a maximum of 4 pieces of candy if they divide the money evenly.

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To determine if the difference in years at the company between employees with a high school degree and those with an MBA is significant at the 95% confidence level, we can perform a hypothesis test for p-value.

We can run a hypothesis test to see if the difference in years spent at the organization between workers with a high school diploma and those with an MBA is significant at the 95% confidence level.

We must first specify our alternative hypothesis and null hypothesis. Our null hypothesis is that there is no discernible difference in the number of years that personnel with a high school diploma and those with an MBA have worked for the organization. Our alternate theory is that the two groups have significantly different average years of employment.

The probability of witnessing the data if the null hypothesis is correct can then be determined using a t-test. The null hypothesis can be rejected if the p-value is less than 0.05, and the difference in years spent at the company between workers with a high school diploma and those with an MBA is determined to be significant at the 95% level of confidence.

We can use a two-sample t-test to compare the means of the two groups if the data is normally distributed and the variances are identical.

If the t-test yields a p-value of less than 0.05, we can reject the null hypothesis and draw the conclusion that there is a significant difference in the number of years that employees with a high school diploma and those with an MBA have worked for the organisation. In contrast, if the p-value is higher than 0.05, we are unable to rule out the null hypothesis since there is insufficient data to support the existence of a significant difference.

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the coordinates of P on the given diagram is (0.6, -0.8).

the Pythagoras theorem is defined as, the square of the hypotenuse of a right-angled triangle equals the sum of the squares of the other two sides.

The formula for the Pythagoras theorem is written as c² = a² + b², where c is the hypotenuse of the right triangle and a and b are its other two legs. As a result, the Pythagoras equation may be used to any triangle that has one angle that is exactly 90 degrees to create a Pythagoras triangle.

Using the Pythagoras trigonometric identity to determine sine based on cos(Θ) = 0.6

Sin²Θ+Cos²Θ=1

SIn²Θ=1-Cos²(0.6)

Sin²Θ=1-.36

SinΘ=-0.8

Since , CosΘ=0.6 and SinΘ=-0.8 the location of point P is (0.6, -0.8)

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Answer:

To find the answer, you need to multiply the fractions 3/7 and 1/5 together:

3/7 * 1/5 = (31) / (75) = 3/35

Therefore, the answer to 3/7 of 1/5 is 3/35.

Answer:

The word "of" in math means to multiply.

3/7*1/5= 3/35

Step-by-step explanation:

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The probability that the proportion of persons with a retirement account in a random sample of size 555 differs from the population proportion by less than 5% is approximately 0.8327.

We need to make some assumptions about the population proportion of persons with a retirement account and the standard deviation of the sampling distribution of sample proportions. Let's assume that the population proportion is p = 0.5 (i.e., half of the population has a retirement account) and that the standard deviation of the sampling distribution is given by:

σ = sqrt((p*(1-p))/n)

where n is the sample size.

Substituting the values given in the question, we have:

σ = sqrt((0.5*(1-0.5))/555) = 0.0258

To find the probability that the sample proportion differs from the population proportion by less than 5%, we need to find the probability that the absolute difference between the sample proportion and the population proportion is less than 0.05. This can be written as:

P(|p_hat - p| < 0.05)

where p_hat is the sample proportion.

We can standardize this expression by subtracting the population proportion from both sides and dividing by the standard deviation:

P(|p_hat - p|/σ < 0.05/σ)

P(-0.97 < Z < 0.97)

where Z is a standard normal variable. We can find this probability using a standard normal table or a calculator:

P(-0.97 < Z < 0.97) = 0.8327

Rounding to four decimal places, we have:

P(|p_hat - p| < 0.05) = 0.8327

Therefore, the probability that the proportion of persons with a retirement account in a random sample of size 555 differs from the population proportion by less than 5% is approximately 0.8327.

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the missing dimension of the triangle is the base, which has a length of 21 feet. To find the missing dimension of the triangle, we will use the formula for the area of a triangle, which is:

Area = 1/2 x base x height

We know that the area of the triangle is 14 ft squared and the height is 6 ft. We can substitute these values into the formula and solve for the base:

14 = 1/2 x base x 6

Multiplying both sides by 2/6 (or simplifying to 1/3) gives:

14 x 3/2 = base

21 = base

Therefore, the missing dimension of the triangle is the base, which has a length of 21 feet.

This means that the triangle has a height of 6 feet and a base of 21 feet, and its area is 14 square feet. The height of a triangle is the perpendicular distance from the base to the opposite vertex, and in this case, it is given as 6 feet. The base of a triangle is the side opposite the height, and we have found that it has a length of 21 feet.

In summary, we can find the missing dimension of a triangle by using the formula for the area of a triangle and the given dimensions. In this case, we found that the missing dimension is the base, which has a length of 21 feet, and we know that the height is 6 feet.

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Cards are dealt from a standard shuffled deck of cards until the first ace is drawn. So the chance that the next card is a king is 0.05 percent.

            When drawing a card from a standard deck of 52 cards, the chance of drawing an ace is 4/52 or 1/13. After an ace has been drawn, there are 51 cards left in the deck, and 4 of them are kings.

           So, the probability of drawing an ace and then a king is

                     (1/13) × (4/51) = 4/663.

There are 4 different aces that could be drawn, each with the same probability of

                      (1/13) × (4/51) = 4/663,

So we multiply by 4 to account for all the possible aces that could be drawn.

Therefore, the total probability of drawing an ace and then a king is

                     (4/663) × 4 = 16/663.

         Once an ace has been drawn, there are 51 cards remaining in the deck, and only one of them is a king. Therefore, the probability of drawing a king after an ace has been drawn is 1/51.

         The probability that the next card is a king after the first ace is drawn is thus:

                    (16/663) × (1/51) = 16/33663

                                              = 1/2104.

      This simplifies to 0.0475 percent or approximately 0.05 percent.

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Answer:

D

Step-by-step explanation:

to find the percent discount we should do the follow things:

1) (40-32)/40=0.2=20%

2) (30-24)/30=0.2=20%

3) (50-40)/50=0.2=20%

4) (45-35)/45=0.2222

So the correct answer is D.

Elias calculated the discount in dollars, not in %. 3) 50$-40$=10$, 45$-35$=10$. But he made a mistake

An equation of a line that is parallel to this line is y = -x + 3.

An equation of a line that is perpendicular to this line is y = x + 3.

An equation of a line that is neither parallel nor perpendicular to this line is y = 3x + 3.

Based on the information provided about this line, an equation that models it is given by:

4x + 4y = 4.

4y = -4x + 4

y = -x + 1

In Geometry, two (2) lines are parallel under the following conditions:

m₁ = m₂ ⇒ -1 = -1

Slope (m) = -1

Therefore, the required equation is y = -x + 3

In Mathematics, a condition that must be met for two lines to be perpendicular is given by:

m₁ × m₂ = -1

-1 × m₂ = -1

m₂ = 1

Slope, m₂ = 1

Therefore, the required equation is y = x + 3

By using a line with a different slope other than 1 and -1 would produce a line that is neither parallel nor perpendicular to the given line.

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Answer:

28.26 meters squared

Step-by-step explanation:

Answer:

28.26 m²

Step-by-step explanation:

The equation for the area of a circle is πr²

We're given the radius at 3 meters.

Using 3.14 for π ; 3.14×3²=28.26 meters²

Answer:

(a) To find the mean value, we sum up all the values and divide by the number of values:

Mean = (17 + 22 + 25 + 27 + 32 + 40 + 45 + 51 + 59 + 62) / 10 = 36.0

So, the mean value is 36.0.

To find the median value, we first need to put the data set in order from smallest to largest:

17, 22, 25, 27, 32, 40, 45, 51, 59, 62

The median is the middle value of the data set, which is 36 in this case.

So, the median value is 36.0.

(b) To find the mean absolute deviation (MAD), we first need to find the deviation of each value from the mean:

|17 - 36.0| = 19.0

|22 - 36.0| = 14.0

|25 - 36.0| = 11.0

|27 - 36.0| = 9.0

|32 - 36.0| = 4.0

|40 - 36.0| = 4.0

|45 - 36.0| = 9.0

|51 - 36.0| = 15.0

|59 - 36.0| = 23.0

|62 - 36.0| = 26.0

Next, we find the mean of these deviations:

MAD = (19.0 + 14.0 + 11.0 + 9.0 + 4.0 + 4.0 + 9.0 + 15.0 + 23.0 + 26.0) / 10

MAD = 13.0

So, the mean absolute deviation for this data set is 13.0.

(c) To find the percentage of the data set that lies closer than the MAD to the mean, we count how many values are within one MAD of the mean. We have:

17, 22, 25, 27, 32, 40, 45, 51, 59, 62

The values within one MAD of the mean (36.0 +/- 13.0) are:

17, 22, 25, 27, 32, 40, 45, 51

So, 8 out of 10 values are within one MAD of the mean.

The percentage of the data set that lies closer than the MAD to the mean is:

8 / 10 * 100% = 80%

(a) To find the mean value, we sum up all the values and divide by the number of values:

Mean = (7 + 7 + 7 + 8 + 8 + 9 + 10 + 32) / 8 = 9.5

So, the mean value is 9.5.

To find the mean absolute deviation (MAD), we first need to find the deviation of each value from the mean:

|7 - 9.5| = 2.5

|7 - 9.5| = 2.5

|7 - 9.5| = 2.5

|8 - 9.5| = 1.5

|8 - 9.5| = 1.5

|9 - 9.5| = 0.5

|10 - 9.5| = 0.5

|32 - 9.5| = 22.

Answer:

Let's say the number of visits to the pool is represented by the variable 'x'.

If a person chooses to pay per visit, the cost will be 4x dollars.

If a person chooses to buy a membership, the cost will be a one-time payment of $100.

We want to find out when the cost of buying a membership becomes less expensive than paying per visit. In other words, we want to solve the inequality:

4x > 100

To solve for x, we need to isolate the variable. We can do this by dividing both sides by 4:

x > 25

So, if a person plans to visit the pool more than 25 times, it's more cost-effective to buy a membership instead of paying per visit.

Based on the information, we can infer that the whole number equivalent to this fraction is 285.

To clear the fraction and obtain an integer we must perform all the mathematical operations that are in the fraction, in this case it is a division and seven multiplications. Here we show you the result:

As evidenced in the procedure, the multiplications were cleared and later the fraction was divided. In this case the result would be the integer 285.

Note: This question is incomplete. Here is the complete information:

How to express this fraction in whole numbers?

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For a government published the above stem-and-leaf plot related to number of sloths at each major zoo in the country. The smallest of sloths at any one zoo was three.

A stem-and-leaf plot is a tool for presenting quantitative data in a graphical format, like as histogram for visualizing the shape of a distribution.

We have a stem-and-leaf plot present above and which showing the number of sloths at each major zoo in the country is published by government. Now, see the above plot carefully, thee smallest number in the stem-and-leaf plot is 03. We can get that by looking at the first stem value and the first leaf value. Hence, required number is 3.

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Complete question:

The government published the above stem-and-leaf plot showing the number of sloths at each major zoo in the country:pls answer fast if you can :

what was the smallest number of sloths at any one zoo?

Answer:

The area of a circle is given by the formula A = πr², where r is the radius of the circle.

If we have two circles with radii of 6 cm and 12 cm, respectively, their areas are:

A1 = π(6 cm)² ≈ 113.1 cm²

A2 = π(12 cm)² ≈ 452.4 cm²

Therefore, the area of the largest circle is closest to 452.4 square centimeters, which corresponds to the circle with radius 12 cm.

The table that represents the function y =1/3 x + 4 is the second table. This can be seen by comparing the input and output values of the given tables.

A function defines the relationship between two variables, wherein one variable depends on the other. In other words, a function is a rule or mapping from one set of values, known as the domain, to another set of values, known as the range.

The table that represents the function y =1/3 x + 4 is the second table. This can be seen by comparing the input and output values of the given tables.

The second table's input values are (6, 9, 12) and the output values are (6, 9, 12). This is equal to the equation y = 1/3 x + 4, where 1/3 x + 4 = x.

The other tables do not represent the function y = 1/3 x + 4. For example, the first table has input values of (0, -3, -6) and output values of (4, 3, 2), which do not match the equation y = 1/3 x + 4.

The third table has input values of (0, 3, 6) and output values of (4, 6, 8), which also do not match the equation y = 1/3 x + 4.

Finally, the fourth table has input values of (3, 6, 9) and output values of (5, 7, 9). This does not match the equation y = 1/3 x + 4 either.

Therefore, the table that represents the function y =1/3 x + 4 is the second table.

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The vectors [-5 4 5], [2 -1 5], and [-17 16 45] are linearly dependent with scalars (1, 3, 1) as an example of a non-zero solution.

To determine if the vectors [-5 4 5], [2 -1 5], and [-17 16 45] are linearly independent, we need to find the scalars a, b, and c that satisfy the equation:

a * [-5 4 5] + b * [2 -1 5] + c * [-17 16 45] = [0 0 0]

If the only solution is a = b = c = 0, the vectors are linearly independent. If there are other solutions where a, b, and c are not all zero, the vectors are linearly dependent.

Let's form a matrix with these vectors as columns:

|-5  2 -17|
| 4 -1  16|
| 5  5  45|

Now, we can row reduce this matrix to its reduced row echelon form (RREF):

| 1 -2  5|
| 0  1 -3|
| 0  0  0|

From the RREF, we can write the system of linear equations:

x - 2y + 5z = 0
y - 3z = 0

Solving this system, we get:

y = 3z
x = 2y - 5z = 6z - 5z = z

Since z can be any scalar, we have infinitely many solutions where not all of a, b, and c are zero. For example, when z = 1, we get x = 1 and y = 3. So, the scalars (1, 3, 1) make the equation true.

Thus, the vectors [-5 4 5], [2 -1 5], and [-17 16 45] are linearly dependent with scalars (1, 3, 1) as an example of a non-zero solution.

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Answer:

12 feet by 10 feet

Step-by-step explanation:

Let length = x + 2 and breadth = x

[tex]2(x+2+x)=44[/tex]

[tex]2(2x+2)=44[/tex]

[tex]2x+2= 44\div2[/tex]

[tex]2x=22-2[/tex]

[tex]2x=20[/tex]

[tex]x=20\div2= 10 \ \text{feet}[/tex]

Thus, breadth = 10 feet

length = 10 + 2 = 12 feet

The probability that a randomly chosen person is actually lying given that the polygraph test concluded that they were lying is 0.05.

The probability that a random person taking a polygraph test is actually lying can be calculated using Bayes' Theorem. In this case, the population consists of 5% liars, so the probability of a randomly chosen person being a liar is 0.05. The reliability of the polygraph test is said to be 90%, meaning that the probability of a person telling the truth passing the test is 0.90, and the probability of a person telling a lie failing the test is also 0.90. Therefore, using Bayes' Theorem, the probability that a randomly chosen person is actually lying given that the polygraph test concluded that they were lying is:

P(Lying | Polygraph) = P(Polygraph | Lying) * P(Lying) / P(Polygraph)

= (0.90 * 0.05) / 0.90

= 0.05

Therefore, the probability that a randomly chosen person is actually lying given that the polygraph test concluded that they were lying is 0.05.

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Answer:

The probabilities are listed as:

P(Ella wins) = 0.75

P(Danila wins) = 5% or 0.05

P(Sophia wins) = 1/5 or 0.2

To determine the order of least to most likely events:

- The probability of Danila winning is the lowest at just 5%. Therefore, Danila winning is the least likely event.

- The probability of Sophia winning (0.2) is greater than Danila's probability of winning (0.05). Hence, Sophia winning is more likely than Danila winning.

- Finally, Ella has the highest probability of winning (0.75) among all three contestants. So, Ella winning is the most likely event.

Therefore, the order of least to most likely events is: Danila wins, Sophia wins, Ella wins.

Answer: Danila, Sophia then Ella

Step-by-step explanation: I took quiz on Khan

Answer: 14.0kph

Step-by-step explanation:

Answer:

sub in 6 into g

6^2+23

36+23

59

After answering the prοvided questiοn, we can cοnclude that PS = circle (QR(NQ - NR))/NR, which is nοt οne οf the given οptiοns.

A circle seems tο be a twο-dimensiοnal cοmpοnent defined as such cοllectiοn οf the all pοints in a jet that becοme equidistant frοm the hub. A circle is cοmmοnly pοrtrayed with the capital "O" fοr centre and the lοwer sectiοn "r" fοr the radius, which is the distance frοm the οrigin tο any pοint οn the circle.

Girth (the distance frοm arοund circle) is given by the fοrmula 2r, where (pi) is a prοpοrtiοnality cοnstant rοughly equal tο 3.14159. The fοrmula r² calculates the circle's circumference, which refers tο the amοunt οf rοοm inside οf the circle.

Nοne οf the given οptiοns represent PS directly. Hοwever, we can use the intersecting secant theοrem tο find PS.

(NQ)(NQ+QR) = (NR)(NR+PR)

We can sοlve fοr PR tο get:

PR = (NR)(NR+PR)/(NQ+QR)

PR(NQ+QR) = (NR)(NR+PR)

PRNQ + PRQR = NR² + PRNR

PRNQ = NR² + PRNR - PRQR

PRNQ = NR(NR + PR - QR)

PR = NR(NR + PR - QR)/NQ

PR(NQ) = NR(NR + PR - QR)

PRNQ = NR(NR + PR - QR)

PRNQ - NR(PR - NR - QR) = 0

PR(NQ - NR) = NR(NR + QR)

PR = (NR(NR + QR))/(NQ - NR)

PS(PR + NR) = QR(NR + QR)

PS = (QR(NR + QR))/(PR + NR)

PS = (QR(NR + QR))/((NR(NR + QR))/(NQ - NR) + NR)

PS = (QR(NQ - NR))/NR

Therefοre, the cοrrect expressiοn representing PS is:

PS = (QR(NQ - NR))/NR, which is nοt οne οf the given οptiοns.

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