The sum or difference of two fractions is not in _______________

1. The inverse of the function f(x) is ±√((x + 10)/2). 2. The inverse of the function f(x) is y = (x - 5)² + 3.

1. The inverse of the function f(x) is ±√((x + 10)/2). 2. The inverse of the function f(x) is y = (x - 5)² + 3.

A one-to-one function is one in which every input (x-value) and every output (y-value) have an exact corresponding relationship. Therefore, there aren't any outputs that are repeated. A one-to-one function geometrically passes the horizontal line test if no horizontal line crosses the function graph more than once.

Contrarily, a many-to-one function is one in which different inputs (x-values) result in the same output (y-value). A many-to-one function geometrically fails the horizontal line test if there is a horizontal line that crosses the function's graph more than once.

1. Replace f(x) with y in the given function:

y = 2x² - 10

Now, swap the values of x and y and isolate the value of y:

x = 2y² - 10

x + 10 = 2y²

(x + 10)/2 = y²

y = ±√((x + 10)/2)

The inverse of the function f(x) is ±√((x + 10)/2).

2. Replace f(x) with y in the given function:

y = √(x - 3) + 5

Swap the values of x and y and isolate y:

x = √(y - 3) + 5

x - 5 = √(y - 3)

(x - 5)² = y - 3

y = (x - 5)² + 3

The inverse of the function f(x) is y = (x - 5)² + 3.

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The lake activity with a central angle of  [tex]39.6^\circ[/tex] is Wakeboarding.

11. the number of tortilla sandwich wraps falling into each interval can be represented by the height or area of the bars. This allows for an easy visualization of the distribution of the data.

12. To determine which bus typically has the faster travel time, we need to compare the measures of center for each data set. Since there are outliers in both data sets, the median would be a more appropriate measure of center than the mean.

For Bus 14, the median is (10 + 12)/2 = 11.

For Bus 18, the median is (10 + 14)/2 = 12.

Therefore, Bus 18 typically has the faster travel time, with a median of 12 minutes.

13. The IQR (interquartile range) is the best measure of variability for the data because it is less sensitive to outliers than the range, and it gives us an idea of how spread out the middle 50% of the data is.

To find Q1, we need to find the median of the lower half of the data: (1+2)/2 = 1.5.

To find Q3, we need to find the median of the upper half of the data: (8+8+8)/3 = 8.

Therefore, the IQR = Q3 - Q1 = 8 - 1.5 = 6.5.

14. To determine the central angle of each lake activity, we need to calculate the percentage of campers who chose each activity and then multiply that percentage by 360 (the total degrees in a circle).

The percentage of campers who chose Kayaking is 15%, so the central angle would be 0.15 x 360 = 54°.

The percentage of campers who chose Wakeboarding is 11%, so the central angle would be 0.11 x 360 = 39.6°.

The percentage of campers who chose Windsurfing is 7%, so the central angle would be 0.07 x 360 = 25.2°.

The percentage of campers who chose Waterskiing is 13%, so the central angle would be 0.13 x 360 = 46.8°.

The percentage of campers who chose Paddleboarding is 54%, so the central angle would be [tex]0.54 x 360 = 194.4^\circ.[/tex]

Therefore, The lake activity with a central angle of  [tex]39.6^\circ[/tex] is Wakeboarding.

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the first letter represents the exterior color, and the second number represents the interior color. So "A1" means exterior color A with interior color 1, "B2" means exterior color B with interior color 2, and so on.

A1

A2

A3

B1

B2

B3

C1

C2

C3

D1

D2

D3

Sure, here's an organized list of the first color combinations for the car with exterior colors A, B, C, and D, and interior colors 1, 2, and 3:

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Compartmentalized is the type of data that is discussed in the problem researched by an employee rylie who is a newly hired cybersecurity expert for a government agency and has working experience in the private sector.

Data classification is the way of organizing data into different categories that make it easy to retrieve, sort and store for future use. In simple words, compartmentalization means to separate into isolated compartments or categories. In data language, A nonhierarchical grouping of information used to control access to data more finely than with hierarchical security classification alone is called Compartmentalization. Now, we have a rylie who is a newly hired cybersecurity expert for a government agency. She has working experience in the private sector. On basis of her experience she has discovered that, the private sector companies often had confusing hierarchies for data classification as compared to the government's classifications which are well known and standardized. During her training, she is researching data that requires special authorization beyond normal classification. The data type that she researched and that is authorization beyond normal classification is called compartmentalized data.

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No. of individuals Suspected drug and didn't give birth to in infants malformed is 10.

Number of individuals who did not take the drug and did not give birth to malformed infants.

subtract the number of individuals who took the drug and gave birth to malformed infants.

The total number of mothers, and then subtract the number of infants born with malfunctions.

Total number of mothers = 40

Number of mothers who gave birth to malformed infants after taking the drug = 35

Number of infants born with malfunctions = 10

the number of mothers who did not take the

drug = 40 - 35 = 5

The number of infants born without malfunctions = Total number of infants - Number of infants born with

malfunctions = (40 - 35) + 5 = 10

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Stop using brainly. This whole website has became a big money grab over the last few months and they will remove all your posts and answers unless you pay them money. I've had it happen several times now.

There are 12,620,256 different combinations of 31 balloons that can be chosen from the store's inventory of 8 colors, each with at least 31 balloons.

We can use the method of example 9.6.2, which involves using the combination formula. We know that there are 8 colors of balloons and at least 31 of each color. We have 8 options for the first balloon, 8 options for the second balloon, and so on, for a total of 8 options for each of the 31 balloons.

Using the combination formula, we can calculate the number of different combinations of 31 balloons that can be chosen as follows:

[tex]nCr = n! / (r! \times (n-r)!)[/tex]

where n is the total number of options (in this case, 8), and r is the number of items we are choosing (in this case, 31).

Plugging in these values, we get:

[tex]8C31 = 8! / (31! \times (8-31)!)[/tex]

[tex]= 8! / (31! \times (-23)!)[/tex]

= 87654321 / (313029...9(-23)(-24)(-25)...(-52))

= 12620256

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Answer:

The answer is 6

Step-by-step explanation:

y=3

-3+y²

-3+(3)²

-3+6=6

The statement C is false .

a)A larger sample size would increase the power of a significance test because it provides more information, reduces random error, and increases the precision of the estimate.

b.) The significance level is the probability of making a type I error, which is rejecting the null hypothesis when it is actually true. It is usually denoted by α and is set before conducting a hypothesis test.

c.) Expanding the sample size cannot decrease the power of a hypothesis test. Power is the probability of rejecting the null hypothesis when it is false (i.e., correctly detecting a real effect). A larger sample size generally increases the power of a test, making it more likely to detect a true effect.

d.) The probability of rejecting the null hypothesis in error is called a type I error. It occurs when the null hypothesis is actually true but is rejected based on the sample data. The probability of making a type I error is equal to the significance level (α) of the test.

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Answer: It should be the same?

(edit) Answer: The direct answer is 6:2 or 6 (cups) flour 2 (cups) milk

Step-by-step explanation: I'm Confused, the ratio is 3:1 or 1:0/3 even if you double the ratio it would be 6:2 the portions of flour will always 3 times the amount (measurement) of the milk. Correct me if i'm wrong, a bit perplexed why this question is asked.

The product of 13.5 and 12.1 using a regrouping strategy is 163.35.

To begin with, we can start by breaking down each number into its place value components, which are the ones, tenths, and hundredths places. We can represent 13.5 as 13 + 0.5 and 12.1 as 12 + 0.1.

So, we can rewrite 13.5 as (10 + 3) + 0.5 and 12.1 as (10 + 2) + 0.1. Now, we can use the distributive property of multiplication to multiply 13.5 by 12.1 as follows:

13.5 x 12.1 = (10 + 3 + 0.5) x (10 + 2 + 0.1)

= 10 x 10 + 10 x 2 + 10 x 0.1

+ 3 x 10 + 3 x 2 + 3 x 0.1

+ 0.5 x 10 + 0.5 x 2 + 0.5 x 0.1

Next, we can simplify each of these products by multiplying the numbers in the ones and tenths places separately, and then adding the results. For example, 10 x 10 = 100, 10 x 2 = 20, 10 x 0.1 = 1, 3 x 10 = 30, and so on.

So, continuing from the previous step, we get:

13.5 x 12.1 = 100 + 20 + 1

+ 30 + 6 + 0.3

+ 5 + 1 + 0.05

Finally, we can add up all these products to get the final answer:

13.5 x 12.1 = 163.35

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Hence, The theoretical probability of selecting a "O", returning it to the bag, and then selecting a "A" from the collection is 2/21.

The probability  of an occurrence is a number used in mathematics to describe how likely it is that the event will take  place. In terms of percentage  notation, it is expressed as a number  between 0 and 1, or between 0% and 100%. The higher the likelihood, the more  likely it is that the event will take place.

In probability theory,  an event is a set of outcomes  of an experiment to which a probability is assigned. A single outcome may be  an element of many different events, and different events  in an experiment are usually not equally likely, since they may include  very different groups of outcomes.

The  word  "ORLANDO"  consists of 7 letters,

in this word  "ORLANDO"  the  O letter is 2 times  and A is one times

probability  of "O" letters  is 2/7  before  there are two "O"s in  total out of the  seven letters because we are putting the first letter back before drawing the second.

After  that, there are  still 2 "O"s and 1 "A" in the bag for  the  second draw because  we placed the first "O" back. Because there is only one "A" out of a  possible three letters,  the probability  of drawing one on the second draw is one in three.

We multiply the   probabilities of each occurrence  to determine the probability that both will occur:

P("O" on the first draw)* P("A" on the second draw) = (2/7) * (1/3) = 2/21

The theoretical probability of selecting a "O", returning it to the bag, and then selecting a "A" from the collection is therefore 2/21, or roughly 0.095, or 9.5%.

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The range of 49 is the most appropriate measure of variability to use to represent the spread of donations received by the charity in this data set.

what is statistics?

Statistics is a branch of mathematics that deals with collecting, analyzing, interpreting, presenting, and organizing data. It involves the study of methods for designing experiments and surveys, analyzing and interpreting data, and making decisions based on data. Statistics plays an important role in a wide range of fields, including science, social science, economics, finance, engineering, and many others. It is used to draw conclusions, make predictions, and inform decision-making by providing a quantitative and objective approach to understanding and analyzing data.

The most accurate measure of variability to use for this data set is the range of 49. The range is the difference between the highest and lowest values in the data set, which in this case is 59 - 10 = 49. The range provides a simple and straightforward measure of the spread of the data and is useful when the data is not too skewed.

While the data in this set is skewed, the range is still an appropriate measure of variability because there are no extreme outliers that would significantly affect the range. The IQR (interquartile range) is another measure of variability that is useful for skewed data, but in this case, it would not be the most appropriate choice because the data set is not divided into quartiles and the IQR would not provide additional information beyond what the range already shows.

Therefore, the range of 49 is the most appropriate measure of variability to use to represent the spread of donations received by the charity in this data set.

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The p-value for the given hypothesis test is 0.0037 (accurate to 4 decimal places)

To find the p-value, we need to use the standard normal distribution table or a calculator. Since the alternative hypothesis is left-tailed, we are interested in finding the area under the curve to the left of the observed test statistic z.

Using a standard normal distribution calculator, we find that the area to the left of z = -2.683 is 0.0037 (rounded to 4 decimal places). This represents the p-value for the hypothesis test.

Therefore, we can conclude that there is strong evidence to reject the null hypothesis at a significance level of 0.05, since the p-value of 0.0037 is less than the chosen significance level. The evidence suggests that the accuracy rate for fingerprint identification is significantly less than 0.16.

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Answer: The degree of the polynomial is the highest power of the variable that occurs in the polynomial.

Step-by-step explanation:

Answer: 80% are boys and 20% are girls

Step-by-step explanation:  Take 1200 ÷ 6000 = 0.2 , to find the percentage multipy 0.2 x 100 = 20%, then subtract 20% from 100 giving you 80%. This means 80% of the members are boys.

Answer: 1393 m

Step-by-step explanation: Because first you are going to subtract the fee (28) and the least charged month (97.65) that is 69.65 and then you are going to divide that number by 0.05 to get the mins that is 1393

Answer:

1-There were about 483 principals in attendance.

2-The college will have about 640 students who prefer pie

3-histogram with the title favorite sport and the x axis labeled sport and the y axis labeled number of students, with the first bar labeled baseball going to a value of 17, the second bar labeled basketball going to a value of 12, the third bar labeled tennis going to a value of 27, and the fourth bar labeled soccer going to a value of 44

4-The correct option regarding which bus has the least spread among the travel times is given as follows:

Bus 18, with an median of  16

Hope you get them all right :)

Step-by-step explanation:

From 4:26 to 6:50  is   2 hr and 24 in = 2  24/60  hrs =  2.4 hours

2.4 hrs is what percent of 15 hrs ?

2.4  /  15  * 100% = 16%

Huseyin used a vertical stretch, so the quadrilateral aren't similar. So correct option is A.

A quadrilateral is a geometric shape that consists of four straight sides and four angles. It is a polygon because it is a closed shape with multiple straight sides.

There are various types of quadrilaterals, which are classified based on their properties. Some common types of quadrilaterals include squares, rectangles, rhombuses, parallelograms, trapezoids, and kites.

A square is a quadrilateral with four equal sides and four equal right angles. A rectangle has four right angles but opposite sides are equal. A rhombus has four equal sides, but its angles are not necessarily right angles. A parallelogram has opposite sides that are parallel and equal in length, but its angles are not necessarily right angles. A trapezoid has only one pair of opposite sides that are parallel. A kite has two pairs of adjacent sides that are equal in length.

We know that that two quadrilateral are similar if corresponding angles are congruent and measures of their corresponding sides are proportional.

In the given transformation, angles that corresponding to each other are

∠fEH and ∠JEK

∠EHG and ∠EKG

∠HGF and ∠KGJ

and ∠GFE and ∠GJE

Here all four angles of EFGH are not congruent to other four angles of EJGK.

So,

Here Huseyin used a vertical stretch, so the quadrilateral aren't similar.

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The complete question is:

Answers are ,Right triangle with legs 3 meters and 33 meters, Right triangle with legs 1 meter and 15 meters, Right triangle with legs 12 meters and 140 meters, Right triangle with legs 12 meters and 150

what is Right triangle ?

A right triangle is a triangle that has one angle equal to 90 degrees (a right angle). The other two angles are acute angles (less than 90 degrees). The side opposite to the right angle is called the hypotenuse, and the other two sides are called legs.

In the given question,

The ratio of the legs of the right triangle for a ramp should be 1:12, which means that for every 1 inch of rise, there should be 12 inches of ramp length. To calculate the angle of inclination, we can use the inverse tangent function, which gives us the angle whose tangent is equal to the ratio of the legs. The angle of inclination should be less than or equal to 4.8 degrees.

Let's calculate the angle of inclination for each ramp design:

Right triangle with legs 3 meters and 33 meters:

The ratio of the legs is 3:33, which simplifies to 1:11. The length of the ramp is 11 times the height of the rise. The angle of inclination is:

arctan(1/11) ≈ 4.76 degrees

The angle of inclination is less than or equal to 4.8 degrees, so this ramp design meets the requirements of the Americans with Disabilities Act.

Right triangle with legs 1 meter and 15 meters:

The ratio of the legs is 1:15. The length of the ramp is 15 times the height of the rise. The angle of inclination is:

arctan(1/15) ≈ 3.81 degrees

The angle of inclination is less than or equal to 4.8 degrees, so this ramp design also meets the requirements of the Americans with Disabilities Act.

Right triangle with legs 12 meters and 140 meters:

The ratio of the legs is 12:140, which simplifies to 3:35. The length of the ramp is 35 times the height of the rise. The angle of inclination is:

arctan(3/35) ≈ 4.56 degrees

The angle of inclination is less than or equal to 4.8 degrees, so this ramp design meets the requirements of the Americans with Disabilities Act.

Right triangle with legs 12 meters and 150 meters:

The ratio of the legs is 12:150, which simplifies to 2:25. The length of the ramp is 25 times the height of the rise. The angle of inclination is:

arctan(2/25) ≈ 4.62 degrees

The angle of inclination is less than or equal to 4.8 degrees, so this ramp design meets the requirements of the Americans with Disabilities Act.

Right triangle with legs 24 meters and 240 meters:

The ratio of the legs is 24:240, which simplifies to 1:10. The length of the ramp is 10 times the height of the rise. The angle of inclination is:

arctan(1/10) ≈ 5.71 degrees

The angle of inclination is greater than 4.8 degrees, so this ramp design does not meet the requirements of the Americans with Disabilities Act.

Therefore, the ramp designs that meet the requirements of the Americans with Disabilities Act are:

Right triangle with legs 3 meters and 33 meters.

Right triangle with legs 1 meter and 15 meters.

Right triangle with legs 12 meters and 140 meters.

Right triangle with legs 12 meters and 150 meters.

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Answer:

To find the initial height of the rocket, we need to determine the height of the rocket when t = 0, since that is the initial time.

Substituting t = 0 into the given equation, we get:

y = -2(0 – 2)2 + 12

y = -2(-2)2 + 12

y = -2(4) + 12

y = 8

Therefore, the initial height of the rocket is 8 meters.

Step-by-step explanation:

For the given integer, the maximum starting population size that will eventually lead to extinction is 98, since any larger value will result in the population either stabilizing at a positive value or growing indefinitely.

The equation in question is:

dN/dt = -0.001N(N - 110)(N - 99)

Here, N represents the population size, and dN/dt represents the rate of change of the population with respect to time. The right-hand side of the equation tells us how the population size changes over time, and it's determined by the current population size N, as well as the two constants 110 and 99.

We can do this by setting dN/dt equal to zero and solving for N:

dN/dt = -0.001N(N - 110)(N - 99) = 0

=> N = 0, N = 99, N = 110

We can then plot the direction field (i.e., arrows indicating the direction of change) on each interval, and use this to determine the behavior of the solution curve. In this case, we can see that the direction of the arrows changes at each critical point, indicating that the population behavior switches between growing and declining as we move from one interval to the next.

Specifically, we can see that if the initial population size A is less than 99, the population will decline to extinction. If the initial population size is between 99 and 110, the population will initially decline but then grow and eventually stabilize at N = 110. If the initial population size is greater than 110, the population will grow exponentially and tend towards infinity.

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Therefore, the time in minutes when the trough is empty is approximately 0.313 minutes.

To find the time in minutes when the trough is empty, we need to solve the equation f(x) = 0, since f(x) represents the volume of water in the trough.

So, we need to solve the quadratic equation:

[tex]10x^2 - 19x + 6 = 0[/tex]

To solve this equation, we can use the quadratic formula:

[tex]x = (-b ± \sqrt(b^2 - 4ac)) / 2a[/tex]

where a = 10, b = -19, and c = 6.

Plugging in these values, we get:

[tex]x = (-(-19) ± \sqrt((-19)^2 - 4(10)(6))) / 2(10)[/tex]

[tex]x = (19 ± sqrt(241)) / 20[/tex]

So, the two solutions are:

[tex]x = (19 + \sqrt(241)) / 20 \approx1.807 minutes[/tex]

[tex]x = (19 - \sqrt(241)) / 20 \approx0.313 minutes[/tex]

However, only the second solution makes sense in this context, since the trough cannot be empty before we start draining the water. Therefore, the time in minutes when the trough is empty is approximately 0.313 minutes.

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Answer:

$5.39 × 5 = $26.95

5 books about airplanes would cost $26.95.

Part A: A reasonable domain to plot the growth function would be from d = 0 to d = 11.

Part B: The y-intercept of the graph of the function f(d) is 7

Part C: The average rate of change of the function f(d) from d = 4 to d = 11 is approximately 0.64 mm/day.

The domain of a function represents the set of input values for which the function is defined and can produce a meaningful output.

The y-intercept of a function represents the value of the function when the input is equal to zero.

The average rate of change of a function from x = a to x = b is given by the slope of the secant line passing through the points (a, f(a)) and (b, f(b)).

Here we have

A biologist is studying the growth of a particular species of algae. She writes the following equation to show the radius of the algae, f(d), in mm, after d days:

=> f(d) = 7(1.06)^d

Since it is given that the radius of the algae was approximately 13.29 mm when the biologist concluded her study, we can set f(d) = 13.29  

=> 13.29 = [tex]7(1.06)^{d}[/tex]

=> ln(13.29/7) = d ln(1.06)

=> d = ln(13.29/7)/ln(1.06) ≈ 11  

Therefore, A reasonable domain to plot the growth function would be from d = 0 to d = 11.

Part B: The y-intercept of the graph of the function f(d) represents the value of the function when d = 0.

Substituting d = 0 into the given equation, we get:

f(0) = 7(1.06)⁰ = 7

Therefore, The y-intercept of the graph of the function f(d) is 7

Part C: The average rate of change of the function f(d) from d = 4 to d = 11 is given by the slope of the secant line passing through the points (4, f(4)) and (11, f(11)). Using the given equation, we can evaluate f(4) and f(11):

f(4) = 7(1.06)⁴ ≈ 8.84

f(11) = 7(1.06)¹¹ ≈ 13.29

The slope of the second line passing through these two points is:

Slope = (f(11) - f(4))/(11 - 4) = [ 13.29 - 8.84]/7 = 0.64

Therefore,

The average rate of change of the function f(d) from d = 4 to d = 11 is approximately 0.64 mm/day.

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Answer:

Remember SOHCAHTOA  

SOH- Sin= Opposite/Hypotenuse

CAH- Cosine= Adjacent/Hypotenuse

TOA- Tangent= Opposite/Adjacent

sin Θ is 24/25

cos Θ is 7/25

tan Θ is 24/7

Step-by-step explanation:

If using the SOHCAHTOA method all you have to do is memorize your Pythagorean triples

Ex: 3,4,5

7,24,25

5,12,13

The value of AC to the nearest tenth is 29.5

The sine rule states that if a, b and c are the lengths of the sides of a triangle, and A, B and C are the angles in the triangle; with A opposite a, etc., then a/sinA=b/sinB=c/sinC.

Angle B = 180-(33+58)

= 180-91 = 89°

using sine rule

represent AC by x

x/ sin89 = 25/sin 58

xsin58 = 25sin89

0.848x = 0.9998×25

0.848x = 24.995

x = 24.995/0.848

x = 29.5( nearest tenth)

therefore the value of AC is 29.5.

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The correct option is C, the skews are different.

We have two dot plots and we want to see which statement is the best suported by these.

The right one is better distributed, so we can conclude that the correct statement is that the data have different skews.

The ranges may seem also to be different, but are the same ones, in the first one is:

20 - 12 = 8

In the second it is:

19 - 11 = 8

so the correct option is C.

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