What is the length of the radius of a circle with a center at the origin and a point on the circle at 8 + 15i?

Answers

Answer 1

Answer:

Hence, the length of the radius of a circle with center at origin is 17 units.

Step-by-step explanation:

" We know that radius of  a circle is any line segment joining center to any point on the circle ".

We have to find the length of the radius of a circle with a center at the origin i.e. (0,0) and a point on the circle at 8 + 15i i.e. at (8,15).

( Since any complex number of the form z=x+iy has a point in the coordinate plane as:  (x,y) ).

Hence , we have to find the distance between the point (0,0) and (8,15).

The distance between two points (a,b) and (c,d) is given by:

[tex]\sqrt{(a-c)^2+(b-d)^2}[/tex]

Here (a,b)=(0,0) and (c,d)=(8,15)

Hence distance between (0,0) and (8,15) is:

[tex]\sqrt{(0-8)^2+(0-15)^2\\} \\=\sqrt{(8)^2+(15)^2\\} \\=\sqrt{64+225}\\ \\=\sqrt{289}\\ \\=17[/tex]

Hence, the length of the radius of a circle with center at origin is 17 units.




Answer 2

Answer: 17

Step-by-step explanation: the length of the radius of a circle with center at origin is 17 units.


Related Questions

The equation below shows the total volume (V), in cubic units, of 4 identical boxes with each side equal to s units:

V = 4s3

If s = 2.5 units, what is the value of V?

25 cubic units
30 cubic units
62.50 cubic units
156.25 cubic units

HELP FAST

Answers

V=4*2,5^3=4*15,625=62,5 cubic units

Answer:

62.50

Step-by-step explanation: im smart

If changes are made to a signature while using version 5.x signature files, are they visible in the router running the configuration?

Answers

I think that the changes will not be visible in the router running the configuration. This is because they are not part of the router configuration. The version 5.x signature is more advantageous it has an additional signature risk rating feature and it supports encrypted signature parameters. 

The diagonal of rectangle ABCD measures 2 inches in length What is the length of line segment AB?

Answers

Hi. I have found the diagram for this problem through other resources and I have it attached.

In the diagram, we already have the angles given so we just need to find the length of one side. Let's first find the length of segment CD since we are given the angles on that side of the rectangle.

We can find its length by applying SOHCAHTOA. We can either use the 60 or 30-degree angle but for this solution let's make use of 60 degrees. From SOHCAHTOA we know that sine of 60 is equal to the length opposite it (CD) over the hypotenuse which is the diagonal that is equal to 2 inches. Knowing this we can solve for CD:

[tex]sin(60)= \frac{CD}{2} [/tex]
[tex] \frac{ \sqrt{3}}{2}= \frac{CD}{2} [/tex]
[tex] \sqrt{3}=CD [/tex]

Since we have a rectangle, the measure of segment CD will just be equal to the measure of segment AB.

ANSWER: The length of line segment AB is √3 or 1.73 inches.

Answer:

Step-by-step explanation:

B on edge

In a rhombus MPKN with an obtuse angle K the diagonals intersect each other at point E. The measure of one of the angles of a ∆PKE is equal 16°. Find the measures of all angles of ∆PKE and ΔPMN.

Answers

The rhombus has a couple of very interesting properties. The first is that the diagonals meet at 90o angles.

The second is that all the sides are congruent. That's actually the key to the problem (or one of them.

The third is that the diagonals are line segments that bisect the angles where the vertex of the angle is. 

So just to make sure you understand what that last statement means <PKM  =  <NKM
K is the vertex of angle PKN 

Now the really heavy duty stuff about your question.
Given
K is obtuse. Therefore <PKM can't be 16o because MKN would also have to be 16 degrees and together they don't add up to anything over 90o.
So the 16o angle is at <EPK

Remember that the diagonals meet at right angles. <PEK = 90o

Finally all triangles have 180o
< PKE = 180 - 16 - 90 = 74. So to review
<PKE = 74o
<EPK = 16o
<PEK = 90o That's one half the problem.

Moving on to triangle PMN
By the properties of parallel lines and a rhombus  and isosceles triangles, that since PKN is bisected (rhombus property) Then PKN = 2* PKM =2*74 = 148o
The angle opposite <PKN is equal to <PKN so <PMN = <PKN
Since PKN = 148 then PMN = 148
Since KPN = 16o then PMN = 16o
Since triangle <PMN is isosceles <PNM = 16o

Summing up 
PMN = 148o
MPN = 16o
MNP = 16o

That's both triangles solved. This is a really nice little problem. If you google properties of a rhombus, you will find all the properties I have used proven. 
 

Answer:

m∠KEP = 90°

m∠EKP = 74°

m∠EPK = 16°

m∠N PM= 16°

m∠MNP = 16

m∠M = 148°

Step-by-step explanation:

If you do RSM those are the answers

what is the rate of decay, as a percent, for the following function n(x)=7(0.067)^x

Answers

[tex]\bf \qquad \textit{Amount for Exponential Decay}\\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\\ r=rate\to r\%\to \frac{r}{100}\\ t=\textit{elapsed time}\\ \end{cases}\\\\ -------------------------------\\\\ n(x)=7(0.067)^x\implies n(x)=7(1-\stackrel{r}{0.933})^x \\\\\\ r=0.933\qquad r\%=0.933\cdot 100\implies r=\stackrel{\%}{93.3}[/tex]

Answer: The rate of decay is 93.3%.

Step-by-step explanation:

Since we have given that

The exponential function is given by

[tex]n(x)=7(0.067)^x[/tex]

As we know the general equation of exponential function that is given by

[tex]n(x)=a(1-b)^x[/tex]

Here, a denotes the initial value

1-b denotes the rate of decay.

So, On comparing both the equations, we get that

[tex]1-b=0.067\\\\b=1-0.067\\\\b=0.933=0.933\times 100=93.3\%[/tex]

Hence, the rate of decay is 93.3%.

a cube has a width of 20 ft what is the surface area of the cube

Answers

It is 2400. This is because each face is 400 square feet. There are 6 faces. So I multiplied 400 by 6 and got the answer. Hope I was helpful.

The surface area of the cube is 2,400 square feet.

To find the surface area of a cube, one must use the formula:

[tex]\[ \text{Surface Area} = 6 \times (\text{side length})^2 \][/tex]

Given that the width of the cube is 20 feet, we can assume that all sides of the cube are equal, since a cube has all sides of equal length. Therefore, the side length of the cube is 20 feet.

Now, we can substitute the side length into the formula:

[tex]\[ \text{Surface Area} = 6 \times (20 \text{ ft})^2 \] \[ \text{Surface Area} = 6 \times 400 \text{ ft}^2 \] \[ \text{Surface Area} = 2,400 \text{ ft}^2 \][/tex]

Thus, the surface area of the cube is 2,400 square feet.

For what value of xis the square of the binomial 3x+1 is 9 times greater than the square of the binomial x–2?

Answers

The information tells us that (3x+1)²=9(x-2)², so this means that we must now solve this equation to find x.
First, we expand the parentheses on both sides using FOIL (Firsts, Outers, Inners, Lasts) :
(3x+1)(3x+1)=9(x-2)(x-2)
9x²+3x+3x+1=9(x²-2x-2x+4
Simplify:
9x²+6x+1=9(x²-4x+4)
Now expand the RHS (right-hand side) expression - multiply all the terms inside the parentheses by 9:
9x²+6x+1=9x²-36x+36
Now solve as you normally would to isolate x. Start off by subtracting 9x² on both sides:
6x+1=-36x+36
Add 36x on both sides:
42x+1=36
Minus 1 on both sides:
42x=35
Divide both sides by 42:
[tex]x= \frac{35}{42} [/tex]
which simplifies to 
[tex]x= \frac{5}{6} [/tex]
I double checked this by substituting x back into the question and it worked, you can try doing this too for verification.

Final answer:

The value of x for which the square of the binomial 3x+1 is 9 times greater than the square of the binomial x−2 is obtained by equating (3x + 1)² to 9(x − 2)², which simplifies and solves to x = 5/6.

Explanation:

To find the value of x for which the square of the binomial 3x+1 is 9 times greater than the square of the binomial x−2, we need to formulate and solve an equation based on the given conditions:

(3x + 1)² = 9(x − 2)²

Expanding both sides gives us:

9x² + 6x + 1 = 9x² − 36x + 36

Now, by simplifying and solving for x, we find:

42x = 35

x = 35 / 42

x = 5 / 6

Therefore, the value of x is 5/6.

The classroom encyclopedia set seems to fill a shelf that is 24 in long each book is 3/4 in thick how many books are in the classroom set

Answers

24 divided by 3/4= 24*4/3=32books

Mowing the lawn is one of Jeremy's jobs at home. But, Jeremy's dad offered to help him this week. His dad drew the following diagram of the lawn and told Jeremy to choose one of the parts to mow. If Jeremy wants to mow the rectangle with the smaller area, which one should he choose?

Answers

They are the same. 8 times 8 is 64, and 16 times 4 is also 64.

Let's find out the area of the two parts separately to see which part is smaller.

Area of rectangle is given by Length * Width

Area of Part 1

Width of Part 1 is 16'

Length of Part 1 is 16-12 = 4'

So area of Part 1 is 16*4 = 64' square

Area of Part 2

Width of Part 2 is 8'

Length of Part 2 is 8'

So area of Part 2 is 8*8 = 64' square

So area of both the parts is same . Hence Jeremy may choose any of the parts.

Hope it helps ..!!


How can you find the surface area of a composite solid made up of prisms

Answers

Asked and answered elsewhere.
https://brainly.com/question/8918751

Enrique charges $5 for every 1/5 hour he spends walking dogs.in the morning he walks buttons for 2/5 hour bruno for 1/5 hour and pepper for 3/5 hour. Monday thru friday. On saturdays he takes mimi diva and coco to the dog park for 4/5 of an hour. On wendsday this week it rained and pepper wanted to stay out for only 1/5 hour. How many hours did enrique spend with the dogs this week. Explain your method

Answers

Maybe You should go check out @AlwaysSmartKate

What is the circumference of a circle circumscribed around a rectangle with sides 10 cm and 24 cm?

Answers

if you can picture it , or sketch it. The diagonal of the rectangle (line connecting opposite corners) is the diameter of the circle. You can find the diagonal by using the Pythagorean theorem for a right triangle. The diagonal would be the hypotenuse.

10^2 + 24^2 = 676
sqrt(676) = 26

The formula for circumference is: diameter times pi.

C = 26pi

9ax+9b-6=21

based on the equation above what is the value of ax+b

Answers

We have [tex]9ax+9b-6=21[/tex].

We add 6 to both sides. [tex]9ax+9b=27[/tex].

Now, to solve for [tex]ax+b[/tex], we factor out and divide by a 9 to get

[tex]9(ax+b)=27 \\ ax+b=3[/tex].

The value of equation ax + b is 3.

What is an equation?

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

To find the value of ax + b, we need to isolate that expression on one side of the equation.

Starting with:

9ax + 9b - 6 = 21

We can add 6 to both sides:

9ax + 9b = 27

Then, we can factor out 9 from the left-hand side:

9(ax + b) = 27

Dividing both sides by 9, we get:

ax + b = 3

Therefore,

The value of equation ax + b is 3.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2

2 to the x power equals 512

Answers

2 to the 8th power = 512
Please make brainliest! ☺
The answer is 22.6 i believe, let me know if i got it right 

for a rectangular solid with length 12 in width 2 in in height 15 in state the appropriate formula for volume and also find the volume

Answers

V= l • w • h= 12•2•15=360 in^3

a rectangle that is 2 inches by 3 Inches has been scaled by factor of 7 suppose you want to scale the copy back to its original size what scale factor would you use?

Answers

It would be 1/7 since you essentially are dividing by 7 to cancel out the original scaling.

This is about transformation of objects.

Scale factor back to original size = 1/7

We are told that the rectangle was scaled by a factor of 7.

What this means is that if the length and width are x and y respectively, then the new scaled measurements will be;

7x and 7y.

Now,for us to scale back to the original size, all we need to do is to divide the new scale measurements by a factor of 7.

This means the original size will be;

Length = 7x × 1/7

Width = 7y × 1/7

Thus,the scale factor will be 1/7 back to the original size.

Read more at; https://brainly.com/question/17292295

which number produces an irrational number when multiplied by 0.5

Answers

square root of 3
pi symbol

Find the equation of the plane through the point p=(5,5,4)p=(5,5,4) and parallel to the plane 5x+2y−z=−6.

Answers

If the required plane is parallel to the plane 
&Pi; : 5x+2y-z=-6
then they both have the normal vector <5,2,-1>

Given the required plane passes through the point (5,5,4), the new plane is defined by
5(x-5)+2(y-5)-1(z-4)=0
=>
plane: 5x+2y-z=31

A vegetable farmer fills 2/3 of a wooden crate with 5/7 pound of tomatoes. How many pounds of tomatoes can fit into one crate?

Answers

1 1/14 i think but not sure 








5/7 pounds fill 2/3 crate

x= number of pounds of tomatoes that will fit in one crate

x=5/7 ÷ 2/3

multiply by the reciprocal
x=5/7 * 3/2
x=(5*3)/(7*2)
x=15/14

change to mixed fraction
x=1 1/14 or 1.07 pounds of tomatoes

1 1/14 pounds of tomatoes will fit in one crate.

Hope this helps! :)

C=
5\9
(F−32)

The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?

I.) A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of 5\9 degree Celsius.

II.) A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.

III.) A temperature increase of 5\9 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius.

A) I only
B) II only
C) III only
D) I and II only

Answers

the answer is D. hope this helps

in 3/4 identify the role of 3. Then explain how to read tbis number

Answers

The role of 3 would be the numerator.
But how to read the number I’m not sure.

Answer:

The 3 is the numerator, To read the number is "three-fourths"

Step-by-step explanation:

I hope this helps!

There are fewer than 8 gallons of gas in the tank how do I write an inequality for that

Answers

g<8 g as a variable for gallons

William runs 5 meters in 20 steps. How many kilometers will he run if he takes 1,000 steps ?

Answers

This means 5 meters/20 steps = x/1,000 steps. 20 times 50 is 1,000, so 5 times 50 is 250 meters. 5/20 can be also reduced to 1/4 = x/1000. Use cross products rule to get 4x = 1,000. Divided both sides by 4 to get x = 250 meters.
Go help me anwser my question

The diagonals BF and CE divide the hexagon ABCDEF into two equilateral triangles and a square. Find the perimeter of the hexagon if BF = 3 cm. Answer: P = cm

Answers

18 cm
Because all the sides are the same size

Answer:  The perimeter of the hexagon is 18 cm.

Step-by-step explanation: As given in the question, hexagon is shown in the attached figure.

The diagonals g and h divides the hexagon into two two equilateral triangles and one square .

Also, length of diagonal g = 3 cm.

We are to find the perimeter of hexagon.

We know that all the sides of a square are equal, so we have

length of b = length of h = length of e = length of g = 3 cm.  

Since the two triangles are equilateral, so all their sides will be equal.

That is, length of a = length of f = length of g =length of c =length of d = length of h = 3 cm.

We know that the perimeter of a polygon is equal to the sum of the lengths of its sides.

Therefore, the perimeter of hexagon is given by

P = a + b + c + d + e + f  = 3 + 3 + 3 + 3 + 3 + 3 = 18 cm.

Thus, the perimeter of the hexagon is 18 cm.

a triangle has an area of 54 m2 and a height of 9m how long is the base of the triangle entered your answer in the box

Answers

Answer:
base of the triangle = 12 m

Explanation:
Area of the triangle = 1/2 * base * height
We are given that:
area = 54 m^2
height = 9 m

Substitute in the equation to get the base as follows:
Area of the triangle = 1/2 * base * height
54 = 1/2 * base * 9
108 = 9*base
base = 12 m

Hope this helps :)
The first thing you should know to solve this problem is that the definition of the area of the triangle is:
 A =(1/2)* b * h
 Where,
 b: base
 h: height.
 Clearing the base we have:
 b = 2*A / h
 Substituting the values
 b = 2*(54) / (9) = 12 m
 Answer:
 The base of the triangle is 12m long

A swimmer swam 49 kilometers in d days. what is the value of d if the swimmer swam an average of 3.2 kilometers daily?

Answers

the answer is the value of d is 15 days

Because d= 49/ 3.2= 15 days 

Eric's father Works two part-time jobs one in the morning and one in the afternoon and works a total of 40 hours each 5-day work week. if his schedule is the same each day, and he works 3 hours each morning, how many hours does Eric's father work each afternoon

Answers

3 * 5 = 15 that is how many hours he works in the mornings

40 - 15 = 25 

He works 25 hours in the afternoon every week. 
25 / 5 = 5

So his father works 5 hours every after noon 5 days out of the week

The number of hours does Eric's father work each afternoon is 5 hours.

Given that,

A total of 40 hours each 5-day work week. And, his schedule is the same each day, and he works 3 hours each morning.

Based on the above information, the calculation is as follows:

[tex]= (40 - (3\times 5)) / div 5\\\\= (40 - 15) \div 5\\\\= 25 \div 5[/tex]

= 5

Learn more: https://brainly.com/question/24908711?referrer=searchResults

Most sample surveys use random digit dialing equipment to call residential telephone numbers at random. the telephone polling firm zogby international reports that the probability that a call reaches a live person is 0.15. calls are independent. (a) a polling firm places 7 calls. what is the probability that none of them reaches a person?

Answers

The probability is 0.3206.
 
Since the probability of reaching a live person is 0.15, the probability of not reaching someone is 1-0.15=0.85.  

The probabilities are independent, which means to find the probability of not reaching anyone on all calls we find (0.85)^7= 0.3206.
Final answer:

The probability that none of the 7 calls reaches a person is approximately 0.1967.

Explanation:

To find the probability that none of the 7 calls reaches a person, we need to calculate the probability that each individual call does not reach a person and then multiply those probabilities together.

The probability that a call reaches a live person is 0.15, so the probability that a call does not reach a live person is 1 - 0.15 = 0.85.

Therefore, the probability that none of the 7 calls reaches a person is 0.857 ≈ 0.1967.

Shoe store A is having a sale in which every pair of shoes is 40% off the regular price.
Shoe store B is having a sale in which $40 is deducted from the regular price.

Richard is comparing the price of the same pair of shoes in both shoes in both stores.In both stores, the shoes normally sell for $120. Which store has the better bargain?

Answers

Store A because 40% off of 120$ will equal 72.
Store a where there is the 40% off, unless he's buying something less that $100 the percentage will always be the better deal than a solid amount off.

Margaret wants to call her friend overseas. There is a connection fee of $2 and a charge of $1.50 per minute. So the cost of the call is 2 + 1.5t dollars for t minutes.

Answers

Yes, because you take your connection fee which is $2 and since there is nothing that will change that you add the $2 to the cost per minute which is $1.50 per minute so you multiply the number of minutes (T) times $1.50 then add your $2
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