Write a sine function that has a midline of 3, an amplitude of 5 and a period of 2.

Answers

Answer 1
Answer: y= 5 sin πx + 3

π means pi

Related Questions

seven divided by the difference of a number and ​,2 minus 6 divided by a number plus ​,2 equals 8 times the reciprocal of the difference of the number squared and 4. what is the​ number?

Answers

The number could be either 2 or -2.

To solve the equation, we can follow these steps:
1. Let's assume the number is represented by "x".
2. According to the given information, the equation can be written as:
[tex]7 / (x - 2) - 6 / (x + 2) = 8 * (1 / (x^2 - 4))[/tex]
3. To simplify the equation, let's find the common denominator.
The common denominator for [tex](x - 2)[/tex] and [tex](x + 2)[/tex] is [tex](x^2 - 4).[/tex]
4. Multiplying each term by [tex](x^2 - 4)[/tex], we get:
[tex]7(x^2 - 4) - 6(x^2 - 4) = 8[/tex]
5. Expanding and simplifying the equation:
[tex]7x^2 - 28 - 6x^2 + 24 = 8[/tex]
[tex]x^2 - 4 = 0[/tex]
6. Now, let's solve for x by factoring:
[tex](x - 2)(x + 2)[/tex]

[tex]= 0[/tex]7. Setting each factor equal to zero:
[tex]x - 2 = 0 \\x + 2 = 0[/tex]
8. Solving for x in each equation:
[tex]x = 2 \\ or \\x = -2[/tex]

Therefore, the number could be either 2 or -2.

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Determine the quadrant or axis where the terminal side of each angle lies. 0°

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The angle 0° lies on the positive x-axis, also known as the initial side. The terminal side of the angle coincides with the initial side, so it does not fall within any particular quadrant.

Angles are measured counterclockwise from the positive x-axis in the Cartesian coordinate system. The point 0° is an extraordinary case since it begins from the positive x-hub itself. An angle's initial and terminal sides overlap when it begins on the positive x-axis.

Therefore, the angle's initial and terminal sides are aligned with the positive x-axis at 0 degrees. Consequently, the angle's terminal side does not lie within any particular quadrant or axis.

To picture it, envision a point beginning from the beginning (0, 0) and moving along the positive x-hub without heading in a different path. It does not enter any of the quadrants because it is always on the positive x-axis.

As a result, there is no specific quadrant for the terminal side of the angle 0°, which is on the positive x-axis.

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In the last 10 presidential elections the democratic candidate has won six times in michigan and four times in ohio

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In the last 10 presidential elections, the Democratic candidate has won six times in Michigan and four times in Ohio.

In the context of presidential elections, Michigan and Ohio are two key swing states that often play a crucial role in determining the outcome of the overall election. The statement indicates that in the last 10 presidential elections, the Democratic candidate emerged victorious six times in Michigan and four times in Ohio.

This information suggests that Michigan has been a more favorable state for the Democratic candidate compared to Ohio in recent election cycles. The Democratic candidate's success in Michigan for six out of the last 10 elections implies a higher level of support or electoral advantage in that state.

On the other hand, the Democratic candidate won four out of the last 10 elections in Ohio, indicating a relatively more balanced or competitive political landscape in that state. While the Democratic candidate has had some success in Ohio, the Republican candidate likely secured victories in the remaining six elections.

The varying electoral outcomes in these swing states highlight the importance of analyzing the political dynamics, demographics, and voting patterns within each state to understand the factors that contribute to election results. These results can provide insights into the electoral strategies, voter preferences, and overall political landscape of Michigan and Ohio.

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Find the next three terms of the geometric sequence 3,21,147,... thank you po sa answering

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To find the next three terms of the geometric sequence 3, 21, 147, we can use the formula for the nth term of a geometric sequence:

aₙ = a₁ * r^(n-1)

where a₁ is the first term of the sequence, r is the common ratio, and n is the position of the term we want to find.

Given that the first term a₁ = 3, we can find the common ratio by dividing any term by its previous term. For example,

r = 21 / 3 = 7

Now, we can find the fourth term of the sequence (n = 4) by substituting the values into the formula:

a₄ = 3 * 7^(4-1) = 3 * 7^3 = 3 * 343 = 1029

Similarly, we can find the fifth term (n = 5) and the sixth term (n = 6) using the same formula:

a₅ = 3 * 7^(5-1) = 3 * 7^4 = 3 * 2401 = 7203
a₆ = 3 * 7^(6-1) = 3 * 7^5 = 3 * 16807 = 50421

Therefore, the next three terms of the geometric sequence 3, 21, 147 are 1029, 7203, and 50421.

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an angle formed by two chords is
FHG
ATN
CHG
ASG

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The measure of this angle is equal to half the measure of the intercepted arc. ASG angles that intercept the same arc are congruent, and they are always less than or equal to 180 degrees.

When two chords intersect inside a circle, an angle is formed. The ASG angle is a type of angle formed by two chords that intersect within a circle. This angle is also known as an inscribed angle or central angle. Let's go over some important concepts related to this type of angle and explore some of its properties.
An inscribed angle is an angle that forms when two chords intersect within a circle. In particular, the angle is formed by the endpoints of the chords and a point on the circle. The measure of an inscribed angle is equal to half the measure of the intercepted arc. Therefore, we can find the measure of an ASG angle if we know the measure of the arc that it intercepts.
A central angle is another type of angle that forms when two chords intersect within a circle. This angle is formed by the endpoints of the chords and the center of the circle. The measure of a central angle is equal to the measure of the intercepted arc. This means that if we know the measure of a central angle, we can also find the measure of the intercepted arc.
One important property of ASG angles is that they are congruent if they intercept the same arc. This means that if we have two ASG angles that intercept the same arc, then the angles are equal in measure.

Another important property of ASG angles is that they are always less than or equal to 180 degrees. This is because the arc that they intercept cannot be larger than half the circumference of the circle.

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you wish to travel from the west-most point s to the east-most point t of a 1-dimensional segment. there are n teleporters on this 1-d segment and each teleporter has two endpoints. whenever you reach one endpoint, it will teleport you to the other endpoint (it may transport you from east to west or west to east, depending on which endpoint you reach). all the endpoints are located strictly between s and t, and none of the endpoint

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To travel from s to t in a 1-dimensional segment with n teleporters, start at s, check for teleporters, choose one, and repeat until t. The number of steps depends on teleporter arrangement.

To travel from the west-most point s to the east-most point t of a 1-dimensional segment with n teleporters, you can follow these steps:

1. Start at point s, the west-most point of the segment.
2. Check if there are any teleporters on the segment.
3. If there are teleporters, choose one and move to its endpoint.
4. Repeat step 3 until you reach the east-most point t.

The teleporters on the segment will transport you from one endpoint to the other, allowing you to move in both directions. Make sure that all the endpoints are located strictly between s and t, and none of the endpoints are outside this range.

Note that the number of steps required to reach point t will depend on the specific arrangement of the teleporters and their endpoints on the segment.

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Ben, Gilberto, and Hannah are playing Ultimate. Hannah is trying to decide if she should pass to Ben or Gilberto. Which player should she choose in order to have the shorter passing distance? Explain your reasoning.

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In order to determine which player Hannah should choose in order to have the shorter passing distance, the  would be for Hannah to pass to Ben because the passing distance is shorter.

Hannah should pass to the player who is closest to her. By doing this, the passing distance will be shorter compared to passing to a player who is further away. Assess the positions of Ben, Gilberto, and Hannah on the field. Identify which player is closest to Hannah.

Compare the distances between Hannah and both Ben and Gilberto. Choose the player who has the shortest distance from Hannah as the optimal choice for the shorter passing distance. To sum up, the answer is that Hannah should pass to the player who is closest to her, as this will result in a shorter passing distance.

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Xin has a bank account whose balance is represented by a(t)=10,000*3.138^t. where t is the time in years. write the function so it reflects the monthly rate of interest. round the nearest percent

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the function that reflects the monthly rate of interest, rounded to the nearest percent, is:

[tex]a(m) = 10,000 * (1 + (3.138^{(m/12)}) / (3.138^{((m-1)/12)) - 1)}[/tex]

To reflect the monthly rate of interest in the bank account balance function, we need to modify the exponential growth formula accordingly.

Since t represents the time in years, we can convert it to months by multiplying it by 12 (since there are 12 months in a year).

Let's denote the time in months as m, and the monthly interest rate as r.

The modified function with the monthly rate of interest is:

[tex]a(m) = 10,000 * (1 + r)^m[/tex]

To determine the monthly interest rate, we can rearrange the formula and solve for r. Considering that the interest rate is compounded monthly, we can use the formula:

r = (a(m) / a(m-1)) - 1

Given that [tex]a(m) = 10,000 * 3.138^t[/tex], we substitute the value of t with m/12:

[tex]r = (10,000 * 3.138^{(m/12)}) / (10,000 * 3.138^{((m-1)/12))} - 1[/tex]

Simplifying the expression:

[tex]r = (3.138^{(m/12)}) / (3.138^{((m-1)/12))} - 1[/tex]

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A die is loaded so that the probability of any side showing is proportional to the number on that side. If the die is rolled and you win 1 dollar for every dot showing, what is the probability distribution for X, the number of dollars won

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To find the probability distribution for X, the number of dollars won, we need to determine the probabilities of winning different amounts of money.

Let's consider the sides of the die. We have numbers 1, 2, 3, 4, 5, and 6. The probability of each side showing is proportional to the number on that side.

To calculate the proportionality constant, we need to find the sum of the numbers on the die: 1 + 2 + 3 + 4 + 5 + 6 = 21.

Now, let's calculate the probability of winning $1. Since the die is loaded, the probability of rolling a 1 is 1/21. Therefore, the probability of winning $1 is 1/21.

Similarly, the probability of winning $2 is 2/21 (rolling a 2), $3 is 3/21 (rolling a 3), $4 is 4/21 (rolling a 4), $5 is 5/21 (rolling a 5), and $6 is 6/21 (rolling a 6).

In conclusion, the probability distribution for X, the number of dollars won, is as follows:
- Probability of winning $1: 1/21
- Probability of winning $2: 2/21
- Probability of winning $3: 3/21
- Probability of winning $4: 4/21
- Probability of winning $5: 5/21
- Probability of winning $6: 6/21

This distribution represents the probabilities of winning different amounts of money when rolling the loaded die.

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What would be the smallest perimeter you could make with 1350 post its? what would be the smallest area you could make with 1350 post its?

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1. The smallest perimeter you could make is 1352 units.

2. The smallest area you could make with 1350 Post-It notes is 114244 square units.

To find the smallest perimeter and area you could make with 1350 Post-It notes, we need to consider how to arrange the notes to form a shape.

1. For the smallest perimeter, we want to minimize the length of each side of the shape. The shape that minimizes the perimeter while using all the Post-It notes is a square. In a square, all sides are equal in length. Therefore, we need to find the length of each side.

The perimeter of a square is given by the formula: Perimeter = 4 * side length.

Given that we have 1350 Post-It notes, we can divide it equally among the four sides of the square to get the number of Post-It notes per side:

1350 / 4 = 337.5

Since we need to have whole numbers of Post-It notes, we round 337.5 up to 338. Therefore, each side of the square will have 338 Post-It notes.

The smallest perimeter you could make with 1350 Post-It notes is:

Perimeter = 4 * 338 = 1352

So, 1352 units is the smallest perimeter you can create.

2. For the smallest area, we use the same square shape. The area of a square is given by the formula: Area = side length * side length.

Using the same side length of 338 that we found earlier, we can calculate the smallest area:

Area = 338 * 338 = 114244

Therefore, 114244 square units is the smallest area you could create with 1350 Post-It notes.

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Cara is planning a hike. twisty trail is 1.02 km longer than loopy trail. rocky trail is 0.242 km longer than twisty trail. how long will cara hike if she completes all 3 trails?

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Cara will hike a total distance of 3x + 2.262 km if she completes all three trails.

These operations can be combined and used in various combinations to perform more complex calculations. Parentheses ( ) can be used to indicate the order of operations, known as the "order of operations" or "PEMDAS" (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right) rule.

To find out how long Cara will hike if she completes all three trails, we need to add up the lengths of each trail.

Given that the twisty trail is 1.02 km longer than the loopy trail, let's assume the length of the loopy trail is x km. Therefore, the twisty trail would be x + 1.02 km.

Next, we are told that the rocky trail is 0.242 km longer than the twisty trail. So, the length of the rocky trail would be (x + 1.02) + 0.242 km.

To find the total length of the hike, we add up the lengths of all three trails:

Total length = loopy trail + twisty trail + rocky trail

Total length = x km + (x + 1.02) km + ((x + 1.02) + 0.242) km

Simplifying the expression:

Total length = 3x + 2.262 km

Therefore, Cara will hike a total distance of 3x + 2.262 km if she completes all three trails.

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In ⊙F, G K=14 and m G H K = 142 . Find each measure. Round to the nearest hundredth. m KM

Answers

The measure of KM in the circle ⊙F is 270 units.

To find the measure of KM in the circle ⊙F, we need to use the given information.

First, we know that GK is equal to 14 units.

Next, we are told that the measure of angle GHK is 142 degrees.

In a circle, the measure of an angle formed by two chords intersecting inside the circle is half the sum of the intercepted arcs.

So, we can set up the equation:
142 = (m GK + m KM)/2
We know that m GK is 14, so we can substitute it into the equation:
142 = (14 + m KM)/2
Now, we can solve for m KM by multiplying both sides of the equation by 2 and then subtracting 14 from both sides:

284 = 14 + m KM
m KM = 270

Therefore, the measure of KM in the circle ⊙F is 270 units.
The measure of KM in the circle ⊙F is 270 units.

To find the measure of KM in the circle ⊙F, we can use the given information about the lengths of GK and the measure of angle GHK.

In a circle, an angle formed by two chords intersecting inside the circle is half the sum of the intercepted arcs. In this case, we have the angle GHK, which measures 142 degrees.

Using the formula for finding the measure of such an angle, we can set up the equation (142 = (m GK + m KM)/2) and solve for m KM.

Since we know that GK measures 14 units, we can substitute it into the equation and solve for m KM. By multiplying both sides of the equation by 2 and then subtracting 14 from both sides, we find that m KM is equal to 270 units.

Therefore, the measure of KM in the circle ⊙F is 270 units.

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A researcher wants to conduct a significance test for the correlation between extraversion and happiness. What is the null hypothesis in this analysis

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In a statistical test, the null hypothesis (H0) is the hypothesis that there is no statistical significance between the two variables in the hypothesis. A researcher wants to conduct a significance test for the correlation between extraversion and happiness, the null hypothesis in this analysis is that there is no significant correlation between extraversion and happiness.

The significance test will reveal whether or not there is evidence to reject this null hypothesis. Therefore, the null hypothesis for this significance test is that there is no significant correlation between extraversion and happiness. The researcher will collect data on both variables,

calculate the correlation coefficient, and then use a significance test to determine if the correlation coefficient is statistically significant or not. The alternative hypothesis (H1) in this case would be that there is a significant correlation between extraversion and happiness.

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he owner of the good deals store opens a new store across town. for the new store, the owner estimates that, during business hours, an average of 909090 shoppers per hour enter the store and each of them stays an average of 121212 minutes. the average number of shoppers in the new store at any

Answers

The average number of shoppers in the new store at any given time is approximately 1,839,383,838.

The owner of the new store estimates that during business hours, an average of 909090 shoppers per hour enter the store and each of them stays an average of 121212 minutes.

To calculate the average number of shoppers in the new store at any given time, we need to convert minutes to hours.

Since there are 60 minutes in an hour,

121212 minutes is equal to 121212/60

= 2020.2 hours.
To find the average number of shoppers in the store at any given time, we multiply the average number of shoppers per hour (909090) by the average time each shopper stays (2020.2).

Therefore, the average number of shoppers in the new store at any given time is approximately

909090 * 2020.2 = 1,839,383,838.

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The equation h=80 t-16 t² models the height h in feet reached in t seconds by an object propelled straight up from the ground at a speed of 80 ft/s . Use the discriminant to find whether the object will ever reach a height of 90ft .

Answers

The discriminant is positive (640>0), the equation has two distinct real roots. Therefore, the object will reach a height of 90ft at some point in time.

To find out if the object will reach a height of 90ft, we need to determine if there are any values of t that make h=90 in the equation h=80t-16t².

Step 1:

Set h=90 in the equation:

90=80t-16t².

Step 2:

Rearrange the equation to put it in standard quadratic form:

16t²-80t+90=0.

Step 3:

Use the discriminant to determine if the equation has real roots. The discriminant is b²-4ac, where a=16, b=-80, and c=90.

Step 4:

Calculate the discriminant:

(-80)²-4(16)(90)=6400-5760=640.

Step 5:

Since the discriminant is positive (640>0), the equation has two distinct real roots.

Therefore, the object will reach a height of 90ft at some point in time.

The object will reach a height of 90ft.

Set h=90 in the equation, rearrange it to standard quadratic form, calculate the discriminant, and determine that the equation has two real roots.

To find out if the object will reach a height of 90ft, we need to determine if there are any values of t that make h=90 in the equation h=80t-16t². Set h=90 in the equation:

90=80t-16t².

Rearrange the equation to put it in standard quadratic form:

16t²-80t+90=0.

Use the discriminant to determine if the equation has real roots. The discriminant is b²-4ac, where a=16, b=-80, and c=90. Calculate the discriminant:

(-80)²-4(16)(90)=6400-5760=640.

Since the discriminant is positive (640>0), the equation has two distinct real roots. Therefore, the object will reach a height of 90ft at some point in time.

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illustration 5 has the state machine three leds. what state in illustration 6 tick function threeleds() will result if an illegal tl state value accidently occurs?

Answers

The state is undefined, the behavior or outcome of the tick function would be unpredictable. The LEDs may exhibit unexpected patterns or become unresponsive.

In illustration 6, if an illegal tl (threeleds) state value accidentally occurs, the tick function threeleds() will result in an unspecified or undefined state.

If an illegal state value accidentally occurs in the tick function `threeleds()` of illustration 6, and there is no specific handling for such cases, it may result in an unspecified or undefined state.

An illegal state value refers to a value that does not correspond to any valid state defined in the state machine.

In this case, since the state is undefined, the behavior or outcome of the tick function would be unpredictable. The LEDs may exhibit unexpected patterns or become unresponsive.

It is important to handle all possible states in a state machine to ensure that unexpected or illegal states are properly handled to maintain the desired behavior of the system.

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A triangular region is bounded by the two coordinate axes and the line given by the equation $2x y

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The area of the triangular region bounded by the two coordinate axes and the line 2x+y=6 is 9 square units.

The triangular region bounded by the two coordinate axes and the line 2x+y=6 can be visualized as a right triangle.

To find the area of the region, we need to determine the length of the base and the height of the triangle.

The base of the triangle is formed by the x-axis, and the height is formed by the line 2x+y=6. To find the length of the base, we need to find the x-intercept of the line, which is the point where the line crosses the x-axis. To do this, we set y=0 in the equation 2x+y=6 and solve for x:

2x+0=6
2x=6
x=3

So the x-intercept is 3, which gives us the length of the base of the triangle.

Next, we need to find the height of the triangle. We can do this by finding the y-intercept of the line, which is the point where the line crosses the y-axis. To find the y-intercept, we set x=0 in the equation 2x+y=6 and solve for y:

2(0)+y=6
y=6

So the y-intercept is 6, which gives us the height of the triangle.

Now we can calculate the area of the triangle using the formula for the area of a triangle: A = (base * height) / 2. Plugging in the values we found, we get:

A = (3 * 6) / 2
A = 18 / 2
A = 9

COMPLETE QUESTION:

A triangular region is bounded by the two coordinate axes and the line given by the equation 2x+y = 6 . What is the area of the region, in square units?

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How do you solve -18 < -7v + 10

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To solve the inequality -18 < -7v + 10, follow these steps:

Step 1: Move the constant term to the right side of the inequality:

-18 < -7v + 10 becomes -18 - 10 < -7v.

Simplifying this expression, we have:

-28 < -7v.

Step 2: Divide both sides of the inequality by -7. Note that when dividing by a negative number, the inequality sign must be flipped.

(-28)/(-7) > (-7v)/(-7).

Simplifying further, we get:

4 > v.

Step 3: Rearrange the inequality with v on the left side:

v < 4.

The solution to the inequality is v < 4, meaning that v can take any value less than 4 to satisfy the original inequality.

[tex]\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}[/tex]

♥️ [tex]\large{\textcolor{red}{\underline{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}[/tex]

Hello!

-18 < -7v + 10

-18 -10 < -7v

-28 < -7v

28 > 7v

28/7 > 7v/7

4 > v

v < 4

use the perfect square trinomial and provide the first step to calculating 322 without a calculator. (30 − 2)2 (30 2)2 (28 − 4)2 (28 4)2

Answers

The first step to calculating 322 without a calculator using the perfect square trinomial is to square the value inside the parentheses, which in this case is (30 - 2), resulting in (28)² = 784.

To calculate 322 without a calculator, you can use the concept of perfect square trinomial.

A perfect square trinomial is an expression in the form of

(a + b)²or (a - b)²

where a and b are numbers.

In this case, the given expression is (30 - 2)².

To calculate it, you first square the value inside the parentheses, which is 30 - 2.

This gives you (28)².

To simplify further, you calculate the square, which is 784.

Therefore, the first step to calculating 322 without a calculator using the perfect square trinomial is (30 - 2)²= 784.

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(x-h)²+(y-k)²=r² is the ______.

Answers

[tex](x-h)^2+(y-k)^2=r^2[/tex] is the equation of the circle.

A circle is a figure in which all the points on its boundary are at equal distances. The equation of a circle on a graph is given as,

[tex](x-a)^2+(y-b)^2=R^2[/tex]

where (a,b) is the radius of the circle.

Given the equation [tex](x-h)^2+(y-k)^2=r^2[/tex].

Assume a circle on the graph such that its radius is 'r', and the coordinates of the center are (h,k). So, substitute the values in the general equation of the circle mentioned above. Therefore, the equation will be,

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Hence, the given equation is the equation of the circle.

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a spherical balloon is being inflated. find the instantaneous rate of change of the surface area s of the balloon with respect to the radius r at

Answers

The instantaneous rate of change of the surface area S of the balloon with respect to the radius r is 8πr.

Given a spherical balloon is being inflated, we are supposed to determine the instantaneous rate of change of the surface area s of the balloon concerning the radius r.

In order to solve the above question, we need to find the derivative of surface area w.r.t radius.

The formula for the surface area of a sphere is given as:

S = 4πr²

Now, we will differentiate the above equation with respect to r.

dS/dr = d/ds (4πr²) = 8πr

We can observe that the instantaneous rate of change of the surface area S of the balloon w.r.t the radius r will be 8πr.

Hence, the instantaneous rate of change of the surface area S of the balloon with respect to the radius r is 8πr.

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g A well-shuffled 52-card deck is dealt to 4 players. Find the probability that one of the players gets all 4 aces.

Answers

Answer:

Step-by-step explanation:

(4/52)^4



Determine the value(s) of n .

P(3 n, n-7), Q(4 n, n+5), P Q=13

Answers

The value(s) of n are: n = -6 + sqrt(57)
n = -6 - sqrt(57)
So, the value of n can be expressed as either -6 plus the square root of 57 or -6 minus the square root of 57.

To determine the value(s) of n in the given problem, let's first understand the notation used. P(3n, n-7) represents a point with coordinates (3n, n-7), and Q(4n, n+5) represents a point with coordinates (4n, n+5).

The distance between two points can be found using the distance formula, which states that the distance between two points (x1, y1) and (x2, y2) is given by:

d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

In this case, we are given that the distance between P and Q is 13, so we can set up the equation:

sqrt((4n - 3n)^2 + ((n+5) - (n-7))^2) = 13

Simplifying the equation, we get:

sqrt(n^2 + 12n + 12^2 + 2^2) = 13

Squaring both sides of the equation to eliminate the square root, we have:

n^2 + 12n + 144 + 4 = 13^2

n^2 + 12n + 148 = 169

Rearranging the equation, we get:

n^2 + 12n - 21 = 0

To solve this quadratic equation, we can use factoring, completing the square, or the quadratic formula. Factoring this equation might not be straightforward, so we can use the quadratic formula:

n = (-b ± sqrt(b^2 - 4ac)) / (2a)

For our equation, a = 1, b = 12, and c = -21. Substituting these values into the quadratic formula, we get:

n = (-12 ± sqrt(12^2 - 4(1)(-21))) / (2(1))

Simplifying further:

n = (-12 ± sqrt(144 + 84)) / 2

n = (-12 ± sqrt(228)) / 2

n = (-12 ± 2sqrt(57)) / 2

Simplifying and factoring out a common factor of 2:

n = -6 ± sqrt(57)

Therefore, the value(s) of n are:

n = -6 + sqrt(57)
n = -6 - sqrt(57)

So, the value of n can be expressed as either -6 plus the square root of 57 or -6 minus the square root of 57.

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Find the exact values of the cosine and sine of each angle. Then find the decimal values. Round your answers to the nearest hundredth. -225°

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For the angle -225°, the exact value of cosine is -sqrt(2)/2 and the exact value of sine is sqrt(2)/2. The decimal values, rounded to the nearest hundredth, are -0.71 and 0.71, respectively.

To find the exact values of the cosine and sine of the angle -225° and then the decimal values rounded to the nearest hundredth, follow these steps:

1. Start by converting the angle -225° to a positive angle by adding 360° to it:
  -225° + 360° = 135°

2. Next, find the cosine and sine values for the angle 135°. These values can be determined from the unit circle or by using a calculator.

3. The exact value of cosine 135° is -sqrt(2)/2.
  The decimal value, rounded to the nearest hundredth, is -0.71.

4. The exact value of sine 135° is sqrt(2)/2.
  The decimal value, rounded to the nearest hundredth, is 0.71.

Therefore, for the angle -225°, the exact value of cosine is -sqrt(2)/2 and the exact value of sine is sqrt(2)/2. The decimal values, rounded to the nearest hundredth, are -0.71 and 0.71, respectively.

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Solve each matrix equation. If the coefficient matrix has no inverse, write no unique solution.

[2 -3 -4 6]

[a b]


[1 -2]

Answers

The solution to the matrix equation is X = [-2a - 3b, -4a + 6b] in terms of a and b. The determinant is not equal to zero, the inverse of A exists.

To solve the matrix equation, we can use the formula:
[tex]X = A^{(-1)} * B[/tex]

where A is the coefficient matrix and B is the constant matrix.

First, let's determine if the coefficient matrix, A, has an inverse. If the determinant of A is equal to zero, then the inverse does not exist and there is no unique solution.

The determinant of A can be found by multiplying the diagonal elements and subtracting the product of the off-diagonal elements:
det(A) = (2 * (-2)) - (1 * (-3))

= -4 + 3

= -1

Next, we can find the inverse of A using the formula:
[tex]A^(-1) = (1/det(A)) * adj(A)[/tex]
where adj(A) is the adjugate of matrix A.

To find the adjugate of A, we need to swap the elements on the main diagonal (2 and -2), change the sign of the off-diagonal elements (-3 and -4), and put them in a new matrix:
adj(A) = [-2 3]
        [4 -6]

Now, we can find the inverse of A:
[tex]A^(-1) = (1/det(A)) * adj(A)[/tex]
      = (1/(-1)) * [-2 3]
                   [4 -6]
      = [-2 -3]
        [-4 6]

Finally, we can solve the matrix equation using the formula [tex]X = A^{(-1)} * B[/tex]:
X = [-2 -3]
   [-4 6] * [a]
            [b]

X = [-2a - 3b]
   [-4a + 6b]

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A local restaurant owner employs 6 high school students who all want to work the same shift during spring break vacation week. To choose which 2 students will can work the shift, the owner assigns each student employee a number between 1-6, and then she rolls a standard number cube twice, The numbers that the number cubes show represent the employees who can work the shift. (If there are doubles, she rolls again.) Is the result a fair decision? Explain.

Answers

Since each student has an equal chance of being assigned a number and the owner follows a fair process to determine the selected students, the result can be considered fair.

The result of using a standard number cube to choose which two students can work the shift is fair.

A standard number cube has six sides, numbered from 1 to 6, which corresponds to the number of student employees. By assigning each student a number between 1 and 6, the restaurant owner ensures that each student has an equal chance of being selected.

When the owner rolls the number cube twice, the numbers that appear represent the employees who can work the shift. If there are doubles (both dice showing the same number), the owner rolls again to ensure fairness.

Since each student has an equal chance of being assigned a number and the owner follows a fair process to determine the selected students, the result can be considered fair.

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e) (5p points) we are given the following unilateral z-transform, i.e. the system is causal ????(????) = ???? (???? − ????) ???? − ???? −???? (???? − ????) ???? − ???????? −???? ???? − ???? find y[n] the inverse z-transform of y(z) and list the values from n = 0 to 8

Answers

The values of n range from 0 to 8, so let's calculate y[n] for n = 0, 1, 2, ..., 8 using the inverse z-transform table.

To find the inverse z-transform of y(z), we can use the method of partial fraction decomposition. Let's break down the given unilateral z-transform equation:
Y(z) = X(z) * (z - a) / (z - b) * (z - c) / (z - d)
Here, a, b, c, and d represent the roots of the denominator polynomial.
To find y[n], we need to find the coefficients of the terms in the partial fraction decomposition.

Now, let's substitute z = e^(jw) into the equation:
Y(e^(jw)) = X(e^(jw)) * (e^(jw) - a) / (e^(jw) - b) * (e^(jw) - c) / (e^(jw) - d)
After simplification, we can express Y(e^(jw)) as a sum of terms:
Y(e^(jw)) = A / (1 - be^(-jw)) + B / (1 - ce^(-jw)) + C / (1 - de^(-jw))
Now, we can use the inverse z-transform table to find the corresponding time-domain sequence y[n] for each term.
The values of n range from 0 to 8, so let's calculate y[n] for n = 0, 1, 2, ..., 8 using the inverse z-transform table.

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A rectangular yard measuring 26 ft by 33 ft is boarded (and surrounded) by a fence.

Answers

The area of the walk is 232 square feet. The area of the yard can be found by multiplying the length and width of the yard:

To find the area of the walk, we first need to calculate the area of the entire yard and the area of the inner rectangle (without the walk).

The area of the yard can be found by multiplying the length and width of the yard:
Area of yard = length * width = 26 ft * 36 ft ⇒ 936 sq ft

Next, we need to calculate the dimensions of the inner rectangle. Since the walk is 2 ft wide and goes all the way along the fence, we subtract 4 ft (2 ft on each side) from both the length and width of the yard:
Length of inner rectangle = 26 ft - 4 ft ⇒22 ft
Width of inner rectangle = 36 ft - 4 ft⇒32 ft

Now, we can calculate the area of the inner rectangle:
Area of inner rectangle = length * width = 22 ft * 32 ft ⇒ 704 sq ft

Finally, to find the area of the walk, we subtract the area of the inner rectangle from the area of the yard:
Area of walk = Area of yard - Area of inner rectangle = 936 sq ft - 704 sq ft ⇒ 232 sq ft
Therefore, the area of the walk is 232 square feet.

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ℓell is the perpendicular bisector of segment \overline{km} km start overline, k, m, end overline. Nnn is any point on \ellℓell. Line l intersected at its midpoint labeled l at a right degree angle by line segment m k. There is a point n on line l that is on the start of it. Dashed lines slant from point m to point n and from point k to point n. Line l intersected at its midpoint labeled l at a right degree angle by line segment m k. There is a point n on line l that is on the start of it. Dashed lines slant from point m to point n and from point k to point n. What theorem can we prove by reflecting the plane over \ellℓell?

Answers

By reflecting the plane over the perpendicular bisector line ℓ, we can prove the Perpendicular Bisector Theorem.

The Perpendicular Bisector Theorem states that if a point lies on the perpendicular bisector of a segment, then it is equidistant from the endpoints of that segment.

In the given scenario, line ℓ is the perpendicular bisector of segment \overline{km}. When we reflect the plane over line ℓ, the image of point n (denoted as n') will be equidistant from points k and m. This is because the reflection preserves distances, and the perpendicular bisector line ℓ ensures that the distances from n' to k and m are equal.

Therefore, by reflecting the plane over line ℓ, we can visually demonstrate and prove the Perpendicular Bisector Theorem.

Reflecting the plane over the perpendicular bisector line ℓ allows us to prove the Perpendicular Bisector Theorem, which states that a point lying on the perpendicular bisector of a segment is equidistant from the endpoints of that segment.

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A bag contains 26 tiles, each with a different letter of the alphabet written on it. you choose a tile without looking. what is the probability that you choose a vowel (a, e, i, o, u) or a letter in the word algebra?

Answers

To determine the probability of selecting a vowel or letter from a bag of 26 tiles, divide the total number of favorable outcomes by the total number of possible outcomes. The probability is 6/13.

To find the probability of choosing a vowel or a letter in the word "algebra" from the bag of 26 tiles, we need to determine the total number of favorable outcomes and the total number of possible outcomes.

The total number of favorable outcomes is the number of vowels (5) plus the number of letters in the word "algebra" (7). Therefore, there are a total of 12 favorable outcomes.

The total number of possible outcomes is the total number of tiles in the bag, which is 26.

To find the probability, we divide the number of favorable outcomes by the number of possible outcomes:

Probability = Number of favorable outcomes / Number of possible outcomes
Probability = 12 / 26
Probability = 6 / 13

Therefore, the probability of choosing a vowel or a letter in the word "algebra" from the bag is 6/13.

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