Given the graph of the quadratic function, determine the features.

Given The Graph Of The Quadratic Function, Determine The Features.

Answers

Answer 1

For the given quadratic function the features are:

Domain: (-∞, ∞): Range :[-1, ∞)Vertex: (-3, -1)Explain about the quadratic function?

A parabola, a U-shaped curve, is the shape of a quadratic function's graph.

The graph's vertex, which is an extreme point, is one of its key characteristics. The vertex, or lowest point on the graph or minimal value of a quadratic function, is where the parabola will open up.

There are three characteristics that all quadratic functions share:

A quadratic function's graph is always a parabola with an end behaviour that is either upward or downward; its domain will be all real numbers; and its vertex is really the lowest point once the parabola opens upwards.

Thus, for the given quadratic function the features are:

Domain: (-∞, ∞): Range :[-1, ∞)Vertex: (-3, -1)

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Related Questions

Alice is building a fenced-pen in her backyard for her dog, as shown (x+14 length) (x as height) Write an expression that represents the total amount of fencing she will need, in feet. If the longer dimension of the rectangle is 25 feet, how many feet of fencing does Alice need?
The answer was 4x+28, but theres still more
Alice needs __ feet of fencing

Answers

Alice therefore requires 72 feet of netting.

Rectangle: What does that mean?

An example of a quadrilateral with equal and aligned opposing edges is a rectangular. It is a rectangle with four sides and four edges that are each 90 degrees. A rectangular is a form with only two dimensions.

If the longer dimension of the rectangle is 25 feet, then we can write:

x + 14 = 25

Solving for x, we get:

x = 25 - 14 = 11

Therefore, the height of the rectangle is 11 feet.

To find the total amount of fencing Alice needs, we need to add up the length of all four sides of the rectangle. Since opposite sides of a rectangle are equal in length, we can write:

Total fencing = 2(length + height)

Substituting the values of length and height, we get:

Total fencing = 2(25 + 11)

Total fencing = 72 feet

Therefore, Alice needs 72 feet of fencing.

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7÷8-7÷10 in its lowest terms

Answers

Answer would be 5/4. Hope this helps!

plsss helpp
( ignore the options i already tried to put in thats probably wrong)
1.EXPERIMENTAL probability of landing on heads: ____
2. THEROTICALLY if you toss a coin the probability of landing on heads= ____
3. are the two probability’s equal
4. which was a higher probability

Answers

The probabilities are given as follows:

Experimental: 1/5.Theoretical: 1/2.

The probabilities are different, as the theoretical probability is higher.

How to calculate a probability?

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes.

Out of 20 tosses, 4 resulted in heads, hence the experimental probability is given as follows:

p = 4/20

p = 1/5.

A coin is equally as likely to be heads or tails, hence the theoretical probability is given as follows:

p = 1/2.

Over a large number of trials, it is expected that the two probabilities assume close values, but for a small number of trials such as 20 it is expected for there to be differences.

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Jayden made 5% of his free throws over the season. If he shot 120 free throws, how many did he make? Divide/scale down to solve for the missing percent.

Answers

Answer:6

Step-by-step explanation:If jayden made 5% of his free throws and he shot 120 free throws you have to find 5% of 120.

5% of 120 = 6  

So Jayden shot a total of 6 free throws during the season

Help I need brainlist

Answers

Answer:

Slope = -250

Interpretation: Every month the value of the car goes down $250.

Step-by-step explanation:

The slope of this linear function is -250 because every 4 months, the value goes down by $1000 so...

-1000/4 = -250

Interpretation: Every month the value of the car goes down $250.

Hope this helps!

you have three grades in your report card that you want to
interpret to your parents in terms of performance: Mathematics
(75), English (85), and Science (90). The means are 72, 82, 88, and
the standa

Answers

Therefore , the solution of the given problem of unitary method comes out to be  6.10 is the standard deviation.

What is an unitary method?

The task can be completed by integrating what was learned and putting this variable technique into practise, which also incorporates all supplemental data from two individuals who used a specific tactic. Or, to put it another way, if the desired expression outcome happens, either the entity stated in the algorithm will also be found, or both essential processes will actually bypass the colour. For forty pens, a refundable charge of Rupees ($1.01) might be required.

Here,

Using the ideas of mean and standard deviation, we can interpret the three grades in terms of achievement.

The three categories' mean (average) is:

=> Mean = (75 + 85 + 90) / 3 = 83.33

This indicates that the achievement as a whole is above average (since the mean of 72, 82, and 88 is 80).

Which is:

=> Variance = [(75 - 83.33)² + (85 - 83.33)² + (90 - 83.33)²] / 3

=>  [67.11 + 1.36 + 44.11] / 3

=>  37.19

The variance's square root equals the standard deviation.

=> SD= √(37.19)

=> 6.10 is the standard deviation.

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Find an equation of the line passing through the given points. Express your answer in slope-intercept form. (3,9) and (3, -8) The equation of the line is (Type an expression using x as the variable.)

Answers

The equation of the line is x = 3.


To find the equation of a line passing through two points, we need to use the slope-intercept form of a linear equation: y = mx + b, where m is the slope and b is the y-intercept.

First, let's find the slope of the line using the formula: m = (y2 - y1) / (x2 - x1)

Plugging in the given points, we get:

m = (-8 - 9) / (3 - 3) = -17 / 0

Since the denominator is zero, this means that the slope of the line is undefined. This means that the line is vertical and has an equation of the form x = c, where c is a constant.

Since both of the given points have an x-coordinate of 3, the equation of the line is:

x = 3

So, the equation of the line passing through the given points is x = 3. This is the final answer in slope-intercept form.

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Jesse would like to determine if the following are inverse functions. f(x)=3x-4,g(x)=4-3x

Answers

Yes, f(x) and g(x) are inverse functions.

An inverse function is a function that "undoes" the original function. In other words, if we plug the output of the original function into the inverse function, we will get the original input back.

To determine if two functions are inverses of each other, we can use the following steps:

1. Plug the first function into the second function, replacing x with f(x). In this case, we will plug f(x) = 3x - 4 into g(x) = 4 - 3x:

g(f(x)) = 4 - 3(3x - 4)

2. Simplify the expression:

g(f(x)) = 4 - 9x + 12

g(f(x)) = 16 - 9x

3. Now plug the second function into the first function, replacing x with g(x):

f(g(x)) = 3(4 - 3x) - 4

4. Simplify the expression:

f(g(x)) = 12 - 9x - 4

f(g(x)) = 8 - 9x

5. If the two simplified expressions are equal to each other, then the functions are inverses of each other. In this case, g(f(x)) = 16 - 9x and f(g(x)) = 8 - 9x are not equal to each other, so the functions are not inverses of each other.

However, if we rearrange the equation for g(x) to solve for x, we get:

g(x) = 4 - 3x

3x = 4 - g(x)

x = (4 - g(x))/3

This is the same as the equation for f(x), but with g(x) in place of x. Therefore, f(x) and g(x) are inverse functions.

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An ant crawls 12 feet in 10 minutes. How far can it crawl in 20 minutes and in 30 minutes?

Answers

Answer:

We can use the given information to find the ant's crawling speed and then use that to calculate how far it can crawl in a given amount of time.

The ant crawls 12 feet in 10 minutes, so its crawling speed is:

12 feet / 10 minutes = 1.2 feet/minute

To find how far the ant can crawl in 20 minutes, we can multiply its crawling speed by the time:

Distance in 20 minutes = crawling speed x time

Distance in 20 minutes = 1.2 feet/minute x 20 minutes

Distance in 20 minutes = 24 feet

Therefore, the ant can crawl 24 feet in 20 minutes.

To find how far the ant can crawl in 30 minutes, we can use the same formula:

Distance in 30 minutes = crawling speed x time

Distance in 30 minutes = 1.2 feet/minute x 30 minutes

Distance in 30 minutes = 36 feet

Therefore, the ant can crawl 36 feet in 30 minutes.

Answer:

20 mins=24 feet

30 mins=36 feet

Step-by-step explanation:

if 12 feet = 10 mins and 10 times 2 = 20 then 12 times 2 =24

same for 30 mins.

10 times 3= 30 then 12 times 3= 36

Did I get these Zeros right while factoring?

Answers

Answer:

You forgot the +- part when taking the square roots

Step-by-step explanation:

5 x^2  = -2

x^2 = -2/5

x = +- sqrt ( -2/5)       <==== note sqrt(-2/5)   NOT  sqrt (-2) / 5

x = ± i sqrt(2/5)

x^2 = 8

x = ±sqrt 8

x = ±2 sqrt (2)


Part A
Which equation can be used to determine the total cost, y, for a tickets ordered in a transaction?
O y = 2.25x + 15.50
O y = 15.50x +2.25
x = 2.25y + 15.50
O = 15.50y +2.25
Part B
If the total cost of a transaction is $157.25, how many movie tickets were ordered?
Enter the correct answer in the box
tickets:

Answers

a) The equation that can be used to determine the total cost, y, for a tickets ordered in a transaction is y = 15.50x + 2.25

b) The number of movie tickets sold is x = 10 tickets

What do you mean by an Equation?

Equations are statements in mathematics that have two algebraic expressions on either side of the equals (=) sign.

It displays the similarity of the connections between the phrases on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are examples of the parts of an equation. When creating an equation, the "=" symbol and terms on both sides are necessary.

Given data ,

Let the total cost of the movie be represented as y

Let the number of tickets sold be x

Now , the cost of one movie ticket = $ 15.50

And , the cost of x tickets = $ 15.50x

The cost of the transaction = $ 2.25

So , the total cost y = cost of x tickets + cost of the transaction

On simplifying the equation , we get

y = 15.50x + 2.25   be equation (1)

b)

Let the number of tickets be x

Now , the total cost of the transaction is y = $ 157.25

So , y = 15.50x + 2.25

On simplifying , we get

157.25 = 15.50x + 2.25

Subtracting 2.25 on both sides , we get

15.50x = 155

Divide by 15.5 on both sides , we get

x = 10 tickets

Hence , the number of tickets sold is 10 tickets

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The complete question is attached below :

Part A

Which equation can be used to determine the total cost, y, for a tickets ordered in a transaction?

O y = 2.25x + 15.50

O y = 15.50x +2.25

x = 2.25y + 15.50

O = 15.50y +2.25

Part B

If the total cost of a transaction is $157.25, how many movie tickets were ordered?

A varies directly as B and inversely as C . A is 12 when B is 6 and C is 2 . What is the value of A when B is 12 and C is 3 .
O 4 O 8 O 12
O 16

Answers

If A varies directly as B and inversely as C then The value of A when B is 12 and C is 3 is 16.

To find the value of A, we can use the formula for direct and inverse variation of the given :
A = k*B/C

We are given that A is 12 when B is 6 and C is 2. We can plug these values into the formula to find the value of k:
12 = k*6/2
12 = 3k
k = 4

Now that we know the value of k, we can plug in the new values for B and C to find the value of A:
A = 4*12/3
A = 48/3
A = 16

Therefore, the value of A when B is 12 and C is 3 is 16. The correct answer is O 16.

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Find the distance between Point A and Point B. Enter your answer in the box.
51Y
4
-3
2
1
0
X
0 1 2 3 4 5
10
A

Answers

Check the picture below.

[tex]~~~~~~~~~~~~\textit{distance between 2 points} \\\\ A(\stackrel{x_1}{2}~,~\stackrel{y_1}{1})\qquad B(\stackrel{x_2}{5}~,~\stackrel{y_2}{5})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ AB=\sqrt{(~~5 - 2~~)^2 + (~~5 - 1~~)^2} \implies AB=\sqrt{( 3 )^2 + ( 4 )^2} \\\\\\ AB=\sqrt{ 9 + 16 } \implies AB=\sqrt{ 25 }\implies AB=5[/tex]

Find the nth term for the following sequence-5,-2,3,10,19

Answers

Answer: To find the nth term of the sequence -5, -2, 3, 10, 19, we need to identify the pattern in the sequence.

Starting with the first term, we can see that we are adding 3 to get to the second term, adding 5 to get to the third term, adding 7 to get to the fourth term, and adding 9 to get to the fifth term.

So, the pattern is that each term is obtained by adding (n-1) x 2, where n is the position of the term in the sequence (starting with n=1 for the first term).

Therefore, the nth term of the sequence is:

-5 + (n-1) x 2

Simplifying this expression, we get:

-5 + 2n - 2 = 2n - 7

So, the nth term of the sequence is 2n - 7.

Step-by-step explanation:

Santa's elves are creating treat bags containing a selection of Kit Kats, Reese's cups and Almond Joys. (A) How many different types of bags can they make containing 10 chocolate bars. (B) How many different types of bags can they make containing 10 chocolate bars if Santa wants to have at least 1 Kit Kat(s), 2 Reese's cup(s) and 1 Almond Joy(s) in the bag

Answers

There are 59,049 different types of bags that can be made containing 10 chocolate bars and 54 x 729 = 39,366 different types of bags that can be made containing 10 chocolate bars with at least 1 Kit Kat, 2 Reese's cups, and 1 Almond Joy in the bag.

(A) To calculate the number of different types of bags that can be made with 10 chocolate bars, we can use the concept of combinations. Since each bag can contain Kit Kats, Reese's cups, and Almond Joys in different quantities, we can think of this as selecting 10 items from a group of 3 different types of items with replacement (since we can have more than one of each type of chocolate bar in a bag).

The formula for the number of combinations with replacement is: n^r, where n is the number of items to choose from and r is the number of items to choose

In this case, n = 3 (since there are 3 different types of chocolate bars) and r = 10 (since we are choosing 10 chocolate bars for each bag). Therefore, the number of different types of bags that can be made is: 3^10 = 59,049

So there are 59,049 different types of bags that can be made containing 10 chocolate bars.

(B) To calculate the number of different types of bags that can be made containing at least 1 Kit Kat, 2 Reese's cups, and 1 Almond Joy, we can use a combination of permutations and combinations. We need to choose 4 chocolate bars (1 Kit Kat, 2 Reese's cups, and 1 Almond Joy) out of the 10, and then choose the remaining 6 chocolate bars from the 3 types of chocolate bars.

First, we choose the 4 chocolate bars with the required distribution:

We can choose 1 Kit Kat in 3 ways (since there are 3 Kit Kats to choose from).

We can choose 2 Reese's cups in 6 ways (since there are 6 ways to choose 2 out of 4 Reese's cups).

We can choose 1 Almond Joy in 3 ways (since there are 3 Almond Joys to choose from).

Therefore, the number of ways to choose the 4 required chocolate bars is: 3 x 6 x 3 = 54

Next, we choose the remaining 6 chocolate bars from the 3 types of chocolate bars. This can be done using the formula for combinations with replacement, as in part (A): n^r, where n is the number of items to choose from and r is the number of items to choose

In this case, n = 3 (since there are 3 types of chocolate bars) and r = 6 (since we are choosing 6 chocolate bars for each bag). Therefore, the number of different types of bags that can be made with the required distribution of chocolate bars is: 3^6 = 729

So there are 54 x 729 = 39,366 different types of bags that can be made containing 10 chocolate bars with at least 1 Kit Kat, 2 Reese's cups, and 1 Almond Joy in the bag.

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What does point J represent on the graph? Responses The cost of 2 ounces of orange juice is $3.00 . The cost of 2 ounces of orange juice is $ $ 3.00 . The cost of 2 ounces of orange juice is $6.00 . The cost of 2 ounces of orange juice is $ $ 6.00 . The cost of 6 ounces of orange juice is $2.00 . The cost of 6 ounces of orange juice is $ $ 2.00 . The cost of 6 ounces of orange juice is $4.00 .

Answers

The meaning of point J(2,6) on the graph is given as follows:

The cost of 2 ounces of orange juice is $6.00.

How to define the ordered pair?

The general format of an ordered pair is given by the rule presented as follows:

(x,y).

In which:

x is the x-coordinate, representing the input variable.y is the y-coordinate, representing the output variable.

The input and output variables for this problem are given as follows:

Input variable: number of ounces of orange juice.Output variable: Total cost.

Hence the point (2,6) represents that the cost of 2 ounces of orange juice is $6.00, meaning that the second option is the correct option in the context of this problem.

Missing Information

The coordinates of the point are (2,6).

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if anyone can help me with this and its the right answer i will give brainy please i really need this

Question 11
Which values in the data set are outliers? Show all work.

72, 81, 82, 83, 83, 85, 100, 54, 75, 81, 83

List the following (and show work if needed): Q1, Median, Q3, Lower Fence, Upper Fence, and Outliers

Answers

The dataset's median, which has a value of 82 and a total of 11 values, is the sixth figure.

what is median ?

When a dataset is ordered from smallest to largest, the median, a measure of central tendency, shows the middle value of the dataset. It is frequently used as a more reliable substitute for the mean, which can be vulnerable to anomalies in the data with extremely high or low values. We must first sort the numbers in a dataset from smallest to largest before we can determine the median. The median is just the middle value when the dataset has an odd number of numbers. For instance, the median, or middle number, in the dataset "2, 5, 7, 10, 12" is 7.

given

Values that are noticeably higher or lower than the remainder of the dataset are found using the fences.

Step 1: Sort the information by size, starting from the smallest:

[tex]54, 72, 75, 81, 81, 82, 83, 83, 83, 85, 100[/tex]

Step 2: Calculate the middle

The dataset's median represents its middle number. The median is the sixth number in the dataset, which contains 11 values total:

Average: 82

Step 3: Determine the first and third quartiles (Q1 and Q3, respectively):

The medians for the dataset's lower and upper halves are Q1 for the lower part and Q3 for the upper. We don't use the median value to determine Q1 and Q3 because the dataset has an odd amount of values.

54, 72, 75, 81, 81 in the bottom half.

Top half: 83, 83, 83, 83, 85, and 100

Q1 = 75 for the bottom half's median.

Q3 = 83 for the top half's median.

The dataset's median, which has a value of 82 and a total of 11 values, is the sixth figure.

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Seven Subjects S1, S2, S3, ...,S7 Are To Be Scheduled In An Examination. The Following Pairs Of Subjects Have Common Students: 2 1 a. {S1, S2}, {S1, S3},{S1, S4},{Sı, S7} b. {S2, S3}, {S2, Sa}, {S2, S5}, {S2, S7}, c. {S3, S4}, {S3, S6},{S3, S7},{S4, S5}, {S4, Sc}, d. {S5,S6},{S5, St}, And {S6, S7} How Can The Examination Be Scheduled So That No Student Has Two examination at same day?

Answers

To schedule the examination so that no student has two examinations on the same day, we can use graph coloring. Graph coloring is the process of assigning colors to the vertices of a graph in such a way that no two adjacent vertices have the same color.

1. First, we can create a graph with the seven subjects as vertices and the pairs of subjects with common students as edges.
2. Next, we can assign a color to each vertex, starting with S1 and moving clockwise around the graph. We can use the smallest available color for each vertex, making sure that no two adjacent vertices have the same color.
3. Once we have assigned a color to each vertex, we can use the colors to schedule the examinations. Each color represents a different day, and all of the subjects with the same color can be scheduled on the same day.

The resulting schedule would look something like this:

Day 1: S1, S5
Day 2: S2, S4
Day 3: S3, S6
Day 4: S7

This schedule ensures that no student has two examinations on the same day, since no two adjacent vertices in the graph have the same color.

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For what values of a will the quadratic y=ax^(2)-6x+3 have no real zeroes? (1) a=1 (3) a=-5 (2) a=-2 (4) a=7

Answers

For a=7 the quadratic equation have no real roots. (4)

For a quadratic equation y=ax^(2)-6x+3 to have no real zeroes, the discriminant of the equation must be less than zero. The discriminant of a quadratic equation is given by the formula b^(2)-4ac, where a, b, and c are the coefficients of the equation. In this case, a=a, b=-6, and c=3.

Plugging these values into the formula for the discriminant, we get:

(-6)^(2)-4(a)(3)<0

36-12a<0

12a>36

a>3

Therefore, the values of a that will make the quadratic equation have no real zeroes are those that are greater than 3. This means that the correct answer is (4) a=7, since this is the only value of a that is greater than 3.

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From Monday through​ Friday, Earl works in the Tutoring center on another day. On another day Earl cleans bathrooms and in the on another. On Saturday and​ Sunday, ​50% of the days. How many days does work in a​ week? What percent of Monday through Friday does ​work?

Answers

Earl works 5 days a week, which is 50percentage of Monday through Friday. He works in the Tutoring center one day, cleans bathrooms one day, and has another day for unspecified work.

Earl works 5 days a week. He works in the Tutoring center one day, cleans bathrooms one day, and has another day for unspecified work. This means that he is working 50% of Monday through Friday. On Saturday and Sunday, he has no work. His work schedule is a great example of how one can balance work with free time. It also shows how one can make the most out of their working hours by doing different activities each day. It provides variety and prevents boredom from setting in. The days off also give Earl time to rest and relax, allowing him to be productive the other days. His weekly schedule is a great example of how one can efficiently manage their time.

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BIG IDEAS MATH
#3 i
X =
Check
The side lengths of AABC are 10, 6x, and 20 and the side lengths of ADEF are 25, 30, and 50. Find the value of x that makes AABC~ADEF.

Answers

The triangles are similar and the value of x is 2 that makes AABC~ADEF congruent.


what is congruent ?

In geometry, two figures are said to be congruent if they have the same shape and size. In other words, if all corresponding angles are congruent and all corresponding sides are of equal length, then the two figures are congruent.

When two figures are congruent, we can superimpose one on top of the other and they will match up exactly. This means that all parts of the two figures will coincide, including angles, sides, and diagonals.

According to the question:
To determine the value of x that makes AABC~ADEF, we need to find a scaling factor that relates the corresponding sides of the two triangles.

Since AABC has side lengths of 10, 6x, and 20, its perimeter is 10 + 6x + 20 = 30 + 6x. Similarly, the perimeter of ADEF is 25 + 30 + 50 = 105.

Since the two triangles are similar, their corresponding sides are proportional. This means that:

10/25 = (6x)/30 = 20/50

Simplifying each of these ratios, we get:

2/5 = x/5 = 2/5

This tells us that x/5 = 2/5, or x = 2. Therefore, the value of x that makes AABC~ADEF is x = 2.

To check that the triangles are indeed similar, we can also check that their corresponding angles are congruent. In AABC, the ratio of the side lengths is 1:6x/10:2, which simplifies to 1:3x/5:1. Since the sum of the angles in a triangle is 180 degrees, we know that:

angle A + angle B + angle C = 180 degrees

Using the Law of Cosines, we can find the measure of angle B:

[tex]cos(B) = (10^2 + (6x)^2 - 20^2)/(210(6x)) = (100 + 36x^2 - 400)/(120x) = (36x^2 - 300)/(120x)[/tex]

[tex]B = cos^-1((36x^2 - 300)/(120x))[/tex]

Using this expression, we can express the measures of the angles in AABC in terms of x:

[tex]angle A = sin^{-1(1/(2x))} = 30 degrees[/tex]

[tex]angle B = cos^{-1((36x^2 - 300)/(120x))}[/tex]

angle C = 180 - 30 - B = 150 - B

Similarly, in ADEF, the ratio of the side lengths is 5:6:10. Using the Law of Cosines, we can find the measures of the angles:

[tex]angle D = cos^{-1((25^2 + 30^2 - 50^2)/(22530))} = 36.87 degrees[/tex]

[tex]angle E = cos^{-1((25^2 + 50^2 - 30^2)/(22550))} = 53.13 degrees[/tex]

angle F = 180 - 36.87 - 53.13 = 90 degrees

Comparing the angles in the two triangles, we can see that angle A is congruent to angle F (both are 30 degrees) and angle C is congruent to angle D (both are 180 - B - 30). Therefore, the triangles are similar.

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The rapid evolution of computer hardware and software has made it easier to conduct computer-based and Web-based (i.e. electronic) surveys. A Professor would like to compare the response rates of electronic surveys and traditional print surveys. The two surveys were developed for customers who had purchased products on the Internet. Of the 631 customers who mailed the printed questionnaire, 261 returned usable responses. Of the 414 customers who sent Web-based (i.e. electronic) questionnaire, 155 returned
usable responses. Estimate a 90% confidence interval for the difference between the usable response rates of the two surveys. Interpret the result.

Answers

The 90% confidence interval for the difference between the usable response rates of the two surveys is (-0.0124, 0.0912).

The difference between the usable response rates of the two surveys can be estimated using the formula for the difference between two proportions:

d = p1 - p2
Where p1 is the usable response rate for the printed survey, and p2 is the usable response rate for the electronic survey. To calculate these response rates, we can use the formula:

p = x/n

Where x is the number of usable responses, and n is the total number of customers who were sent the survey. For the printed survey, we have:

p1 = 261/631 = 0.4138
And for the electronic survey, we have:

p2 = 155/414 = 0.3744


So the difference between the two response rates is:

d = 0.4138 - 0.3744 = 0.0394


To estimate a 90% confidence interval for this difference, we can use the formula:

CI = d ± z*√[(p1(1-p1)/n1) + (p2(1-p2)/n2)]


Where z is the critical value for a 90% confidence level, which is 1.645. Plugging in the values we have:

CI = 0.0394 ± 1.645*√[(0.4138(1-0.4138)/631) + (0.3744(1-0.3744)/414)]

CI = 0.0394 ± 1.645*√[0.000407 + 0.000581]

CI = 0.0394 ± 1.645*0.0315

CI = 0.0394 ± 0.0518

CI = (-0.0124, 0.0912)


So the 90% confidence interval for the difference between the usable response rates of the two surveys is (-0.0124, 0.0912). This means that we can be 90% confident that the true difference between the two response rates is between -0.0124 and 0.0912.

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10 percent of what number is 13?

Answers

Answer:

tgv7cutc

Step-by-step explanation:

txr. thh5d tdhg6643gchctc

I believe the answer is:
130

This year, the student council president has decided to raise funds for the school prom by selling Justin Bieber T-shirts. In the past, they’ve sold an average of 1500 shirts at about $12 each. This year, they plan to decrease the price of the shirts. Based on student feedback, for every $0.50 decrease in price, 20 more T-shirts will be sold.
a) Determine the demand (price) function in terms of x , the number of t-shirts sold
b) Determine the marginal revenue function. Then, determine the marginal revenue from the sales of 1800 T-shirts and interpret its meaning.

Answers

a)  The demand (price) function in terms of x : P(x) = 12 - 0.025(x - 1500)

b) the marginal revenue function is [tex]MR(x) = dR(x)/dx = 12 - 0.05(x - 1500)[/tex] The marginal revenue from the sales of 1800 T-shirts is -$3. This means that for each additional T-shirt sold after the 1800th, the revenue will decrease by $3 per T-shirt

To determine the demand (price) function, we need to find a relationship between the price of the T-shirts (P) and the number of T-shirts sold (x). We are given that for every $0.50 decrease in price, 20 more T-shirts will be sold.

Let's first find the decrease in price per T-shirt sold. If 20 more T-shirts are sold for every $0.50 decrease, then the decrease per T-shirt is $0.50/20 = $0.025. Now, we can set up the demand function. The base price is $12, and we decrease it by $0.025 for each additional T-shirt sold. So the demand function is:

P(x) = 12 - 0.025(x - 1500) To determine the marginal revenue function, we first need to find the total revenue function. Total revenue (R) is the product of the price (P) and the number of T-shirts sold (x):

R(x) = P(x) * x = (12 - 0.025(x - 1500)) * x Now we need to find the derivative of the total revenue function with respect to x, which will give us the marginal revenue function: MR(x) = dR(x)/dx = 12 - 0.05(x - 1500)

To determine the marginal revenue from the sales of 1800 T-shirts, we simply plug in x = 1800 into the marginal revenue function: MR(1800) = 12 - 0.05(1800 - 1500) = 12 - 0.05(300) = 12 - 15 = -$3

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distribute and then combine ( 2)/(3) (3x - 1) + 4x +3^(2)-10x + 5

Answers

So, by resolving the given, we obtain the result: The final simplified expressions phrase is as follows: -4x + 38/3

what is expression ?

Mathematical operations include doubling, dividing, adding, and subtracting. A phrase is constructed as follows: Expression, monetary value, and mathematical operation Numbers, parameters, and functions make up a mathematical expression. It is possible to use words and terms in contrast. Every mathematical statement including variables, numbers, and a mathematical operation between them is called an expression, sometimes referred to as an algebraic expression. For example, the expression 4m + 5 is composed of the expressions 4m and 5, as well as the variable m from the above equation, which are all separated by the mathematical symbol +.

Let's start by condensing the first expression:

(2/3) (3x - 1) = 2x - 2/3

Now, we may reformat the phrase as follows:

(2x - 2/3) + 4x + 9 - 10x + 5

Mixing related concepts gives us:

-4x + 38/3

The final simplified phrase is as follows:

-4x + 38/3

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A company receives 10% comission on houses sold. Marge sold a house for 180,000, and she gets 1/4 of the company's comission. How much comission doe marge receive?

Answers

Answer:

The total commission earned by the company is 10% of the selling price, which is:

0.10 x $180,000 = $18,000

Marge receives 1/4 of the company's commission, which is:

(1/4) x $18,000 = $4,500

Therefore, Marge receives $4,500 in commission.

Show that the set is linearly dependet by finding a nontrival linear combination of vectors in the set whose sum is the zero vector. (use s1, s2, s3 resepectively for the vectors in the set)
S={(5,4),(−1,1),(2,0)}
(0,0)= Express the vector s1 in the set as a linear combination of the vectors s2 and s3. s1=

Answers

The vector s₁ in the set can be expressed as a linear combination of the vectors s₂ and s₃:

s₁ = (-4/3)s₂ + (1/3)s₃

How to express that the vector S₁ is a linear combination of the vectors S₂ and S₃?

The set S = {(5,4),(−1,1),(2,0)} is linearly dependent if there exists a nontrivial linear combination of the vectors in the set whose sum is the zero vector. In other words, if there exists scalars a, b, and c such that:

a(5,4) + b(−1,1) + c(2,0) = (0,0)

Expanding the above equation gives us:

(5a - b + 2c, 4a + b) = (0,0)

This implies that:

5a - b + 2c = 0

4a + b = 0

Solving the above system of equations gives us:

a = 1/3, b = -4/3, c = 1/3

Therefore, the nontrivial linear combination of the vectors in the set whose sum is the zero vector is:

(1/3)(5,4) + (-4/3)(−1,1) + (1/3)(2,0) = (0,0)

To express the vector s₁ in the set as a linear combination of the vectors s₂ and s₃, we can use the above solution and write:

s₁ = (-4/3)s₂ + (1/3)s₃

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Write a sinusoidal function with amplitude 4, period 3???? and
vertical shift down 8 units.

Answers

A sinusoidal function is a type of periodic function that can be written in the form y = a sin(bx + c) + d, where a is the amplitude, b is the frequency, c is the phase shift, and d is the vertical shift.


Given the parameters in the question, we can plug them into the general form of a sinusoidal function to find the specific function.

Amplitude = 4
Period = 3π
Vertical shift = -8

The period of a sinusoidal function is related to the frequency by the equation period = (2π)/b. Therefore, we can solve for b to find the frequency:

3π = (2π)/b

b = (2π)/(3π)

b = 2/3

Plugging in the given values for amplitude, frequency, and vertical shift, we get the sinusoidal function:

y = 4 sin((2/3)x) - 8

This is the sinusoidal function that satisfies the given conditions. It has an amplitude of 4, a period of 3π, and a vertical shift down 8 units.

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10+3 to the power of 3/9=?

PLEASE HELP!!

Answers

Answer:

13

an example:In words: 103 could be called "10 to the third power", "10 to the power 3" or simply "10 cubed"

Trust me its 13

10 + 3³/⁹ answer is  11.4422495703074083.

Describe Algebraic Expression?

An algebraic expression is a combination of variables, constants, and mathematical operations. It represents a mathematical relationship between quantities and can be used to model real-world situations or solve problems.

Algebraic expressions can contain variables, which are symbols that represent unknown values, constants, which are fixed values, and mathematical operations such as addition, subtraction, multiplication, division, and exponents.

We can simplify the expression step by step as follows:

10 + 3³/⁹ = 10 + 3^(1/3) (since 3^(3/9) = (3^3)^(1/9) = 27^(1/9) = (3^3)^(1/3) = 3^(3/3) = 3^1 = 3)

= 10 + 1.4422495703074083 (using a calculator to evaluate 3^(1/3) to about 15 decimal places)

= 11.4422495703074083

Therefore, 10 + 3^(3/9) = 11.4422495703074083.

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24. Track In a 4 by 100 meter relay race, a different runner runs each of the four
successive 100 meter "legs" of the race. In how many ways can 4 from a group
of 8 runners be assigned to run the legs of the race?

Answers

There are 70 ways to assign 4 runners from a group of 8 to run the legs of the race.

What is permutation and combination ?

Permutation and combination are two fundamental concepts in mathematics that deal with counting and arranging objects.

According to given information :

This is a combination problem. The formula for calculating the number of combinations of r items from a set of n items is:

nCr = n! / (r! * (n-r)!)

where n! represents the factorial of n, or the product of all positive integers up to and including n.

In this problem, we want to choose 4 runners from a group of 8, without regard to order. So we can use the combination formula as follows:

8C4 = 8! / (4! * (8-4)!)

= (8765) / (4321)

= 70

Therefore, there are 70 ways to assign 4 runners from a group of 8 to run the legs of the race.

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