What is the image of the point (3,4)(3,4) after a rotation of 90^{\circ}90 ∘ counterclockwise about the origin?

Answers

Answer 1

The image of the point (3,4)(3,4) after a rotation of 90^{\circ}90 ∘ counterclockwise about the origin is (-3,4).

What is meant by the image of the points?

A point's reflection

The mirror's "reflection" of the specified point P causes it to appear at an equal distance away on the other side of the line. To view this, move the point P. According to tradition, the "image" of point P is the reflection of point P across the line, which is designated by the term P' (pronounced "P prime").

As the rotation is counterclockwise around the origin,

the coordinates of the image will be - (-3,4)

The graph is attached at the end of the solution.

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Answer 2

Answer:

-4, 3

Step-by-step explanation:


Related Questions


Quadrilateral RSTU is circumscribed about ®j . If the perimeter is 18 units, find x .

Answers

The value of x is 1.5 units

Given that a quadrilateral RSTU is circumscribed about [tex]\odot J[/tex].

Also given that the perimeter of the quadrilateral is 18 units.

Then the the sides ST, TU, UV and RS are tangents to the circle at points A, B, C and D respectively.

Then we have,

 AT = BT

 BU = UC

 RC = RD

 SD = SA

Given that AT = UC = x and RC = RD = SD = SA = 3 units

Therefore, BT = BU = x

We need to find 'x'.

Perimeter = 18 units

i.e., ST + TU + UV + RS = 18 units

⇒   AT + BT + BU + UC + RC + RD + SD + SA = 18 units

⇒ x + x + x + x + 3 + 3 + 3 + 3 = 18

⇒ 4x + 12 = 18

⇒4x = 6

⇒ x = 6/4 = 3/2

x = 1.5 units

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Suppose y varies directly with x , and y=15 when x=10 . What is y when x=22 ?

Answers

So, from the question statement, we can conclude that the y and x axes are directly proportional. In order to  show it in the equation form, we can write,

Y=kx (directly proportional)

y=k x

The values that are given in the question are

y = 15

and,

x = 10

Now we will put these individual values in the above relation equation of x and y,

y=k x

15=10k

k=15/10

k=1.5

So, we found the unknown factor by putting the values of the available terms. Now in order to find the new value of y, when the new values of x are given and is,

x=22

We will simply modify the relation equation,

y=k x

By putting the known terms in the above equation,

x=22, k=1.5

y=1.5 * 22

y = 33.

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2 5/8 + 1 3/8
2 5/11 + 3 4/11
2 5/16 + 5 1/16
3 2/19 + 4 3/19
1 6/7 + 2/7

Answers

Answer:

1. 4

2. [tex]5\frac{9}{11}[/tex]

3. [tex]7\frac{6}{16} = 7\frac{3}{8}[/tex]

4. [tex]1\frac{8}{7} = 2\frac{1}{7}[/tex]


Rewrite the following polynomial in standard form.

x+9-7x³ x4

Answers

Answer:

-7x³+ 4x²+x+9

Step-by-step explanation:

Can somebody please explain this to me?
I can only put numerical values.

Answers

Using the graph, the value of r(-2) is 8

Graph of functions

From the question, we are to determine the value of r(-2)

The given graph is the graph of the function r(x), and we have that

y = r(x)

To determine the value of r(-2), we will trace from the point where x = -2 on the graph to the parabola (the curve of a quadratic function), and then read the corresponding value on the y-axis by tracing this point to the y-axis.

On the graph, if we trace from the point x = -2, to the curve, we will find out that the value of y is 8.

Thus,

From y = r(x), we can write that

8 = r(-2)

∴ r(-2) = 8

hence, the value of r(-2) is 8

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A bag contains 5 red marbles, 2 blue marbles, 4 white marbles, and 1 yellow marble. If two marbles are chosen in a row, without replacement, what is the probability of getting 2 white marbles?
A. 1/66
B. 1/11
C. 1/9
D. 5/33
E. 2/5

Answers

The correct option is B. 1/11.

The probability of choosing 2 white marbles is 1/11.

What is defined as the combination?

A combination is an arithmetical technique for determining the number of different arrangements in a set of items in which the sequence of the selection is irrelevant.

You can choose the objects in any order in combinations. Permutations and combinations are often confused.

Now, as pet the stated question.

The total number of red marble in the bag are 5.

The total number of blue marble in the bag are 2.

The total number of white marble in the bag are 4.

The total number of yellow marble in the bag are 1.

The combination for selecting the 2 white marbles out of 4 are;

⁴C₂ = 4!/(4-2)!2!

⁴C₂ = 6

Ans, the combination for selecting the 2 marbles out of total 12 are;

¹²C₂ = 12!/(12-2)!2!

¹²C₂ = 66

Thus, the combination for selecting the 2 white marbles out of total 12 is;

= ⁴C₂ / ¹²C₂

= 6/66

= 1/11

Therefore, the the probability of outcome of the 2 white marbles out of total 12 marbles is 1/11.

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The phones continue to be made with the
correct working part, so the percentage
continues to increase.
What percent is reached if (round answers to the nearest tent
The next 50 phones are working?
%
The next 100 phones are working?
The next 500 phones are working?
DONE
%
%

Answers

Answer:

The next 50 phones are working? ---> 88.3%

The next 100 phones are working? ---> 93.6%

The next 500 phones are working? ---> 98.6%

Step-by-step explanation:

I hope this helps

The ratio of dogs to cats in the shelter is 10 to 8. If there are 20 cats, how many dogs are in the shelter?

Answers

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.The ratio of dogs to  in the shelter is 10 to 8. If there are 20 cats, then 25 dogs are in the shelter.

What is ratio?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

The ratio of dogs to cats in the shelter is 10 to 8. i.e 10/8

If there are 20 cats then we need to find number of dogs.

Let the number of dogs be x when there are 20 cats.

10/8=x/20

Apply cross Multiplication.

200=8x

Divide both sides by 8.

x=25.

Therefore there are 25 dogs in the shelter if the number of cats are 20.

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The formula for a three-dimensional
midpoint is
dimension, north as the y-dimension, and above as the z-dimension.
+3+3+1+2). Use this formula to solve the following problem, using west as the x-
Two airplanes are circling a small airport. Airplane 1 has a position 2000 feet West, 600 feet North, and 3000 feet above the air traffic control tower.
Airplane 2 has a position 1000 feet East, 1400 feet North, and 2200 feet above the air traffic control tower. Relative to the tower, what is the location of the
point directly between the two airplanes?
Enter the correct coordinates in the boxes.
Assume the air traffic control tower to be at the three-dimensional coordinate (0, 0, 0).
5 of 5
The location of the point directly between the two airplanes is (1,500 1,000, 2,600), relative to the tower.
Showing hint 1 of 2
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9:37

Answers

Using the midpoint concept, the location of the point directly between the two airplanes is (-500, 1000, 2600).

What is the midpoint concept?

The midpoint between two points is the halfway point between them, and is found using the mean of the coordinates.

For this problem, the coordinates are given as follows:

Airplane 1: (-2000, 600, 3000).Airplane 2: (1000, 1400, 2200).

Hence the coordinates of the midpoint are given as follows:

x: (-2000 + 1000)/2 = -500.y: (600 + 1400)/2 = 1000.z: (3000 + 2200)/2 = 2600.

The location is (-500, 1000, 2600).

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For what amounts of sales do you earn more in the first year with Job Offer A? with Job Offer B?
Job Offer A
Base salary
Commission
$46,975
4.5% of sales
Job Offer B
Base salary
Commission
Sign-on bonus
$42,550
6.5% of sales
$2500

Answers

Using linear functions, it is found that until $77,000 in sales, Job B pays more, and for more than than, Job A pays more.

What is a linear function in slope-intercept form?

A linear function is modeled according to the following rule:

y = mx + b

In which:

m is the slope of the function, called the rate of change of the function, and is given by the change in y divided by the change in x.b is the y-intercept of the function, which is given by the the value of y when the function crosses the x-axis(x = 0).

For this problem, the earnings are modeled by linear functions, in which:

The slope is given by the commission percentage.The intercept is given by the sum of the base salaries and the sign-on bonus.

Hence the earnings for sales of x are given as follows:

A(x) = 46975 + 0.045x.B(x) = (42550 + 2500) + 0.065x = 45050 + 0.065x.

Due to the higher intercept, until they are equal, A(x) is greater, and after that B(x) is greater, hence we have to find when they are equal as follows:

A(x) = B(x)

45050 + 0.065x = 46975 + 0.045x

0.025x = 1925ntil $77,000 in sales, Job B pays more, and for more than than, Job A pays more.

x = 1925/0.025

x = 77000.

Hence:

Until $77,000 in sales, Job B pays more, and for more than than, Job A pays more.

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What is the equation of each line in slope-intercept form?

b. the line perpendicular to y = (2/3)x - 1 through (0,6)

Answers

The slope-intercept form is y = 3/2x - 6 for line perpendicular to y = (2/3)x - 1 through (0,6)

How to solve an equation?

To solve linear equations, utilize the steps that are provided below.

Remove parentheses from each side of the equation and combine similar terms to make it simpler.To separate the variable term on one side of the equation, use addition or subtraction.To find the variable, use division or multiplication.The common denominator can be multiplied by each side of the equation to eliminate fractions.

Lets take an example of solve z for 7z – (3z – 4) = 12

Here is no multiplication or division, so this will be easy to solve

⇒ 7z – (3z – 4) = 12

⇒ 7z – 3z + 4 = 12

⇒ 4z = 12 – 4

⇒ 4z = 8

⇒ z = 8/4

⇒ z = 2

See, that was so simple, using the mentioned methods, every linear equation can be solved easily.

In an equation, perpendicular lines have the opposite reciprocal slope. In other words, if a line's slope is a positive fraction, its reciprocal slope is negative.

Here given that y = (2/3)x - 1

Here 2/3 is the slope and 1 is the y-intercept

To find a perpendicular line to the following equation, use the opposite reciprocal slope and point, then solve using the point-slope formula.

y - y₁ = m(x - x₁)

We have, m = 3/2, x₁ = 0 and y₁ = 6

y - 6 = 3/2(x - 0)

y - 6 = 3/2x - 0

y = 3/2x - 6

We have the slope-intercept form y = 3/2x - 6 of a line  perpendicular to y = (2/3)x - 1 through (0,6)

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Solve each system by elimination.
2r + s = 3 , 4r - s = 9

Answers

By elimination, the solution of the system of equations, 2r + s = 3 and 4r - s = 9, is (r , s) = (2 , -1).

A system of equations is a set of two or more equations which includes common variables. To solve system of equations, we must find the value of the unknown variables used in the equations that must satisfy all the equations.

There are three methods that can be used to solve system of equations.

1. Elimination

2. Substitution

3. Graphing

Using the elimination method, given two equations in r and s, a variable should be eliminated by adding/subtracting the two equations.

Adding the two equations will eliminate the variable s.

2r + s = 3     (equation 1)

4r  - s = 9     (equation 2)

6r       = 12

r = 2

Substitute the value of r to any of the two equations and solve for s.

2r + s = 3     (equation 1)

2(2) + s = 3

s = 3 - 4

s = -1

Hence, the solution of the system of equations is (r , s) = (2 , -1).

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100 POINTS I will report all bad answers. I have over 2.5k points so I can easily repost if I have too. ONLY LEGIT ANSWERS. --

Given the linear functions f(x) = x − 3 and g(x) = −2x + 4, determine (f ⋅ g)(x).

(f ⋅ g)(x) = −2x − 12
(f ⋅ g)(x) = −2x^2 − 12
(f ⋅ g)(x) = −2x^2 − 2x − 12
(f ⋅ g)(x) = −2x^2 + 10x − 12

Answers

The product of the two linear functions f(x) = x − 3 and g(x) = −2x + 4 is -2x² + 10x - 12

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Given the linear functions f(x) = x − 3 and g(x) = −2x + 4, hence:

(f.g)(x) is the product of the two functions:

(f . g)(x) = (x - 3)(-2x + 4)

(f . g)(x) = -2x² + 6x + 4x - 12 = -2x² + 10x - 12

The product of the two linear functions f(x) = x − 3 and g(x) = −2x + 4 is -2x² + 10x - 12

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r
(b)
Page 7
Children go to a Rodeo camp during the Easter holiday. Ms Rekha buys bananas and oranges
for the children at the camp.
(i)
Bananas cost $3.85 per kilogram. Ms Rekha buys 25 kg of bananas and receives a
discount of 12%. How much money does she spend on bananas?

Answers

Answer:

84.7

Step-by-step explanation:

first you multiply 3.85 x 25 =96.25 then you need to determin the percent of 12 which is 11.55 the lasly you subtract 96.25-11.55=84.7      btw 84.7 for bannas is a scam for real

If the area of the triangle is 12, what is the value of x?

Answers

Answer:

X = 3 and -7

Step-by-step explanation:

area of a triangle is = ½ ×base × height

Jose and Nancy take care of animals when their owners are away. Jose charges $15 plus $2 per animal and Nancy charges $5 plus $3 per animal. For how many animals do they charge the same amount?

Answers

For 10 animals do Jose and Nancy charge the same amount.

What is defined by the linear equation?A linear equation would be an algebraic equation with only a constant and the first-order (linear) term of the form y = mx+b, in which m is the slope and b is the y-intercept. The above is sometimes referred to as a "linear equation of 2 variables," where x and y are the variables.

For, the given question;

Let there be 'x' number of animals.

Jose charges $15 plus $2 per animal.

15 + 2x

And, Nancy charges $5 plus $3 per animal.

5 + 3x

Then,

For the same amount, equate both equations.

15 + 2x = 5 + 3x

On solving;

x = 10

Thus, for 10 animals, their total charge will be equal.

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question is in the picture

Answers

Answer:

after 5 hours: 14.5 inches

after t hours: 2 + 2.5t

Step-by-step explanation:

2 + 2.5t

2 + 2.5(5) = 2 + 12.5 = 14.5


Fireworks are shot from a barge in a river There is an explosion circle inside which all n the fireworks will explode. Spectators sit outside â safety circle 800 feet from the center of the fireworks display.
b. If the safety circle is 200 to 300 feet farther from the center than the explosion circle, find the range of values for the radius of the explosion circle.

Answers

The range of values for the radius of the explosion circle is found to be 500-600 ft.

What exactly is a circle?

A circle is a shape founded by all locus in a plane at a fixed distance from its centre.

It is the path traced by a moving point in a plane to ensure that its distance from a specified place remains constant.The radius of a circle is the distance between two locations on the circle and the center.The radius must usually be a positive number.A circle to r = 0 is a degenerate case.

Now, according to the stated question;

Evaluate the circumference by the formula;

Formula: 2πr

Radius = 800 feet

Substitute the value in the formula;

C = 2πr

C = 2π800

C = 5026.54825 feet

Therefore, radius of the explosion circle will range from 500 to 600 feet.

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What is the inverse of f(x) = (x+4)^3

Answers

Answer:

C

Step-by-step explanation:

[tex]Answer:\ f^{-1}(x)=\sqrt[3]{x} -4[/tex]

Step-by-step explanation:

[tex]f(x)=(x+4)^3[/tex]

Extract the cube root from both parts of the equations:

[tex]\sqrt[3]{f(x)} =x+4\\\sqrt[3]{f(x)}-4=x+4-4\\ \sqrt[3]{f(x)} -4=x[/tex]

Redefine the variables:

[tex]f^{-1}(x)=\sqrt[3]{x} -4[/tex]

Determine the volume

Answers

Answer:

2000.18

Step-by-step explanation:

Volume=V=(3.14)r^2h=3.14·7^2·13=2000.18.

Hope this helps.

3. Name a line that contains point e.
4. Name all points contained on line n.
5. What are two other names for line p?
6. Name the plane containing lines n and p.
7. Name a line that point B is on in six different ways.
8. How many lines does plane G contain? Name the lines.
B
9. Draw and label a figure with a plane, a line, and a line segment.

Answers

Answer:

3. Line q

4. Point B and Point A

5. Line DC or Line CD

6. Plane G

7. Line n, Line q, Line AB, Line BA, Line BE, Line EB

8. Line N, and Line Q

Step-by-step explanation:

Find the first five terms of each sequence. aₙ =3 a n₋₁ , where a₁ = 2

Answers

The first five terms of the sequence (geometric) are: 2, 6, 18, 54, 162.

What is a geometric progression?

A geometric progression, sometimes referred to as a geometric sequence in mathematics, is a series of non-zero numbers where each term following the first is obtained by multiplying the preceding one by a constant, non-zero value known as the common ratio.

Now, given formula: [tex]a_n=3a_{n-1}[/tex], a₁ = 2.

For n = 2, a₂ = 3 (a₁) = 3 (2) = 6

For n = 3, a₃ = 3 (a₂) = 3 (6) = 18

For n = 4, a₄ = 3 (a₃) = 3 (18) = 54

For n = 5, a₅ = 3 (a₄) = 3 (54) = 162.

Hence, The first five terms of the sequence (geometric) are: 2, 6, 18, 54, 162.

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The batting Wang Xiu Ying uses to fill quilts has a thermal conductivity rate of 0.030.030, point, 03 watts (\text{W})(W)left parenthesis, start text, W, end text, right parenthesis per meter (\text{m})(m)left parenthesis, start text, m, end text, right parenthesis per degree Celsius (^\circ\text{C})(

C)left parenthesis, degrees, start text, C, end text, right parenthesis.
What is the batting's thermal conductivity value in \dfrac{\text{W}}{\text{cm}\cdot^\circ\text{C}}
cm⋅

C
W

Answers

According to the given statement the thermal conductivity is :

0.0003(W/(m* c))

What do you understand by  thermal conductivity?

Thermal conductivity is defined as the rate at which heat is transported by conduction through a unit cross-section surface of a material that whenever a temperature gradient exists perpendicular to the area.

How do you determine thermal conductivity?

The material's thermal conductivity is defined as the ratio of the rate of heat flow per unit area to the negative of the temperature gradient: dQdt=KAdTdx.

According to the given data:

0.03 watts (W) per meter (m) per degree Celsius as a result, thermal conductivity is:

= 0.03(W/(m* c))

while we want the heat conductivity of the batting in w/cm•c

The only distinction is between metre and cm.

As a result, we must convert meter's to centimeters.

we are aware

1m =100cm

As a result, thermal conductivity may be written as.

= 0.03(W/(m* c))

we can replace 1m as 100cm.

= 0.03(W/(100m* c))

No simplifying the equation we get:

=  0.0003(W/(m* c))

According to the given statement the thermal conductivity is :

0.0003(W/(m* c)).

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WORTH 20 POINTS THX FOR HELP
works need to shown

Answers

40 X 90 = 3600 and -25 x 75=1875

Adam has RM500. He keeps 30% of his money in the bank. Calculate the balance of the money he has with him.​

Answers

Answer:

RM350

Step-by-step explanation:

calculate 30% of RM500

= [tex]\frac{30}{100}[/tex] × 500 = 0.3 × 500 = 150

RM150 is left in the bank

and 500 - 150 = RM350 is the money he has with him

solve by elimination
steps plssss

Answers

Answer:[tex] \begin{cases}x = 1 & \text{} \\y = 1 & \text{} \\ z = 0& \text{}\end{cases}[/tex]Step-by-step explanation:

[tex] \begin{cases}- 2x + 2y + 3z = 0 & \text{} \\- 2x - y + z = - 3 & \text{} \\ \: \: \: 2x + 3y +3z = 5& \text{}\end{cases}[/tex]Rearrange[tex] \begin{cases} - 2x + 2y + 3z = 0 & \text{} \\ \: \: \: \: z = - 3 + 2x + y & \text{} \\ \: \: \:2x + 3y + 3z = 5& \text{}\end{cases}[/tex]Substitute into one of the equations

[tex] \begin{cases} - 2x + 2y + 3( - 3 + 2x + y) = 0 & \text{}\\ \: \: \: 2x + 3y + 3( - 3 + 2x + y)=5& \text{}\end{cases}[/tex]Apply the Distributive Property

[tex] \begin{cases} - 2x + 2y - 9 + 6x + 3y = 0 & \text{}\\ \: \: \: 2x + 3y - 9 + 6x + 3y= 5&\text{}\end{cases}[/tex]Combine like terms[tex] \begin{cases} 4x + 5y - 9 = 0 & \text{}\\ 8x + 6y - 9 = 5& \text{}\end{cases}[/tex]Rearrange variables to the left side of the equation

[tex] \begin{cases} 4x + 5y = 9 & \text{}\\ 8x + 6y= 14& \text{}\end{cases}[/tex]Rearrange like terms to the same side of the equation

[tex] \begin{cases}4x= 9 - 5y& \text{}\\ 8x + 6y= 14& \text{}\end{cases}[/tex]Divide both side of the equations by the coefficient of variable

[tex] \begin{cases} x= \frac{9 - 5y}{4}& \text{}\\ 8x + 6y= 14& \text{}\end{cases}[/tex]Substitute into one of the equations

[tex]\bf\longrightarrow{8 \times \frac{9 - 5y}{4} + 6y = 14}[/tex]Multiply both sides of the equation by the common denominator

[tex]\bf\longrightarrow{8 \times \frac{9 - 5y \times 4}{4} + 6y \times 4= 14 \times 4}[/tex]Reduce the fractions[tex]\bf\longrightarrow{8(9 - 5y) + 6y \times 4 = 14 \times 4}[/tex]Apply the Distributive Property

[tex]\bf\longrightarrow{72 - 40y + 6y \times 4 = 14 \times 4}[/tex]Multiply the monomials

[tex]\bf\longrightarrow{72 - 40y + 24y = 14 \times 4}[/tex]Calculate the product or quotient

[tex]\bf\longrightarrow{72 - 40y + 24y = 56}[/tex]Combine like terms[tex]\bf\longrightarrow{72 - 16y = 56}[/tex]Rearrange variables to the left side of the equation

[tex]\bf\longrightarrow{ - 16y = 56 - 72}[/tex]Calculate the sum or difference

[tex]\bf\longrightarrow{ - 16y = - 16}[/tex]Divide both sides of the equation by the coefficient of variable

[tex]\bf\longrightarrow{y = \frac{ - 16}{ - 16} }[/tex]Calculate

[tex]\bf\longrightarrow{y = 1}[/tex]Substitute into one of the equation

[tex]\bf\longrightarrow{x = \frac{9 - 5}{4} }[/tex]Calculate the sum or difference

[tex]\bf\longrightarrow{x = \frac{4}{4}}/tex]Cross out the common factor

[tex]\bf\longrightarrow{x = 1}[/tex]The solution of the system is

[tex] \begin{cases}x = 1 & \text{} \\y = 1 & \text{}\end{cases}[/tex]Substitute

[tex]\bf\longrightarrow{z = - 3 + 2 + 1}[/tex]Solve the equation

[tex]\bf\longrightarrow{z = 0}[/tex]Write the solution

[tex] \begin{cases}x = 1 & \text{} \\y = 1 & \text{} \\ z = 0& \text{}\end{cases}[/tex]

Answer:

  (x, y, z) = (1, 1, 0)

Step-by-step explanation:

You want to solve the given system of equations by elimination.

Solution

There are a couple of nice choices for variables to eliminate.

The last equation has an x-coefficient that is the opposite of the x-coefficient in the other two equations. Adding that equation to those will eliminate the x-variable:

  (-2x +2y +3z) +(2x +3y +3z) = (0) +(5)   ⇒   5y +6z = 5 . . . . add eqns 1, 3

  (-2x -y +z) +(2x +3y +3z) = (-3) +(5)   ⇒   2y +4z = 2 . . . . add eqns 2, 3

The second of these equations can be divided by 2 to give ...

  y +2z = 1

Three times this equation can be subtracted from the first of the reduced equations to eliminate z:

  (5y +6z) -3(y +2z) = (5) -3(1)   ⇒   2y = 2

  y = 1 . . . . divide by 2

Substitution

Now, we can substitute this value into the previous equation to find the other variables.

  y +2z = 1 = 1 +2z   ⇒   0 = 2z   ⇒   z = 0

  -2x -y +z = -3 = -2x -(1) +(0)   ⇒   -2 = -2x   ⇒   x = 1

The solution is (x, y, z) = (1, 1, 0).

__

Additional comment

The attachment shows a calculator solution to the system of equations by reducing the augmented matrix to "reduced row-echelon form." In general, that is a process of elimination. Each equation ends up with one variable having a coefficient of 1, so we have x = 1, y = 1, z = 0.

You could also start by eliminating the y-variables. Adding twice the second equation to the first will do that, as will adding 3 times the second equation to the third. The result of these operations is two equations in x and z.


Find the next two terms in each sequence. Write a formula for the n th term. Identify each formula as explicit or recursive. 21,13,5,-3, ......

Answers

The formula for nth term of the given sequence is [tex]T_{n+1} = T_{n} - 8[/tex].

According to the given question.

We have a sequence, 21,13,5,-3, .......

Since, the first term of the given sequence is 21.

The second term of the given sequence is 13.

Here we can see that, each term is less than 8 to the previous term. It means the common ratio of the given sequece is -8 and it is an arithmetic sequence.

Therefore, the formula for nth term of the given sequence is given by

[tex]T_{n+1} = T_{n} - 8[/tex]

Where, n is the number of term.

Hence,  the formula for nth term of the given sequence is [tex]T_{n+1} = T_{n} - 8[/tex].

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Write an equation of a circle with the given center and radius. Check your answers.
center (1,-3) , radius 10

Answers

The equation of the circle with radius 10 and center located at (1 , -3) is (x - 1)^2 + (y + 3)^2 = 100.

The general form of the equation of  circle is given by (x - h)^2 + (y - k)^2 = r^2, where (h , k) is the location of the center and r is the radius of the circle.

Given the radius and center of the circle, substitute these values to the general form of the equation of the circle.

(x - h)^2 + (y - k)^2 = r^2

where (h , k) = (1 , -3)

r = 10

(x - 1)^2 + (y - -3)^2 = 10^2

(x - 1)^2 + (y + 3)^2 = 100

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a
||
b =
||||
C=
x
-2
-1
0
1
2
DONE
4
f(x) = -x²+x+6
a
4
b
6
C

Answers

The vakues based on the function f(x) = -x² + x + 6 will be:

12

0

12

How to calculate the value?

When x = -2, the value will be:

f(x) = -x² + x + 6

= -2² + 2 + 6

= 4 + 2 + 6

= 12

When x = 0

f(x) = -x² + x + 6

= 0² + 0 + 6

= 0

When x = 2

f(x) = -x² + x + 6

= 2² + 2 + 6

= 12

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For what domain intervals is the function y= |x+1| increasing and/or decreasing?

Answers

The function y= |x+1| is increasing for the domain -1 < x < ∞ and decreasing for the domain -∞ < x < -1.


As given in the question, for what domain intervals is the function y= |x+1| increasing and/or decreasing is to be determined.

Here,
Given function,
f(x) = |x + 1|
Given functions absolute function,
Whose domain is all real numbers from -∞ to ∞.
And when we plot the graph of the function, we see that its decreasing from -∞ to -1 and increases from -1 to ∞.

Thus, The function y= |x+1| is increasing for the domain -1 < x < ∞ and decreasing for the domain -∞ < x < -1.

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