When searching for a lost animal, the search party often creates a circular area with a search radius. Two points of interest in the search are the last known locations the animal was sighted. The two points of interest in this case are the pet’s home, which is located at (-4,5), and the neighbor’s yard, located at (-9,10). If the pet’s home is the center of the circle and the neighbor's yard is on the circle, find the radius of the circle.

Answers

Answer 1
Let
C----------> the center of a circle 
C (-4,5)
A-----------> a point on the circle
A (-9,10)

we know that
the distance between point A and point C is the radius of the circle
A (-9,10)  C (-4,5)

d=√[(y2-y1)²+(x2-x1)²]--------> √[(5-10)²+(-4+9)²]
=√[(-5)²+(5)²]------> √[(25)+(25)]---------> √50
d=7.07 units
r=d--------> r=7.07 units

the equation of a circle is
(x+4)²+(y-5)²=50
see the attached figure

the answer is 
the radius of a circle is 7.07 units

When Searching For A Lost Animal, The Search Party Often Creates A Circular Area With A Search Radius.

Related Questions

The triangles are isosceles and ΔABC : ΔJKL. What is the length of J-L?

5 cm

7.5 cm

8 cm

10 cm

Answers

You know ABC is isoceles, so AB = BC and BC = 2.5 cm.
That means that the scale factor is KL/BC = 2
So JL = 2AC = 8 cm

Answer:

8

Step-by-step explanation:

7.7.33

 Question Help

 

The kilopascal is a unit of measure for atmospheric pressure. Suppose the atmospheric air pressure at sea level is about

9898

kilopascals. For every​ 1000-m increase in​ altitude, the pressure decreases about

11.411.4​%.

What is the approximate pressure at an altitude of

40004000

​m?

The pressure at an altitude of

40004000

m is about

 

nothing

kilopascals.

Answers

we know that

At sea level, the height is 0 and
the pressure is 98 kilopascals

At 1000 ft, the height is 1000 and
the pressure decreases about 11.41%

i(100%-11.41%)/100----> (0.8859)

therefore
1) at 1000 ft--------> the pressure is 98*(0.8859)----------> 86.82 kilopascals
2) at 2000 ft--------> the pressure is 86.82*(0.8859)-------> 76.91 kilopascals
3) at 3000 ft--------> the pressure is 76.91*(0.8859)-------> 68.14 kilopascals
4) at 4000 ft---------> the pressure is 68.14*(0.8859)-------> 60.36 kilopascals


the answer is
The pressure at an altitude of 4000 m is about 60.36 kilopascals

Mary invest £12000 in a savings account.
the account pays 1.5% compound interest per year.

work out the value of her investment after 2 Years

Answers

 For this case we have an equation of the form:
 [tex]y = A * (b) ^ t [/tex]
 Where,
 A: initial investment
 b: growth rate
 t: time in years.
 Substituting values we have:
 [tex]y = 12000 * (1,015) ^ t [/tex]
 Then, for 2 years we have:
 [tex]y = 12000 * (1,015) ^ 2 y = 12362.7[/tex]
 Answer:
 The value of the investment of it after two years is given by:
 y = 12362.7

Answer:

The value of her investment after 2 Years is   £ 12362.70

Step-by-step explanation:

Given :  Mary invest £ 12000 in a savings account. The account pays 1.5% compound interest per year.

We have to find the value of her investment after 2 Years

Using formula for compound interest

[tex]A=P(1+r)^n[/tex]

where, A is amount

P is principal

r is rate of interest

n is time period

We have, P = £ 12000

t = 2 years

r = 1.5% = 0.015

Substitute, we have,

[tex]A=12000\left(1+0.015\right)^2[/tex]

Simplify, we have,

A =  £ 12362.70

The value of her investment after 2 Years is   £ 12362.70

Latrell is comparing two job opportunities one job will pay $12 an hour and he will work 40 hour a week. The other one pays an annual salary of $22,00 and he will work 45 hours a week. which job pays more?

Answers

To compare these two jobs, you need to have a common point. In this problem, you have to solve for the annual salary of the first job and compare it with the annual salary of the second job which is already given.

$12 per hour x 40 hours per week x 48 weeks in a year = $23,040

First job’s annual salary is $23,040

Second job’s annual salary is $22,000

Therefore, the job which pays $12 an hour pays more.

Latrell will earn more at the job that pays $12 per hour for a 40-hour workweek, which totals $24,960 per year, compared to the annual salary of $22,000 for a 45-hour workweek.

To determine which job pays more between an hourly wage job and an annual salary job, we need to calculate the total annual income for each option.

For the hourly wage job at $12 per hour for 40 hours a week:

$12/hour times 40 hours/week = $480/week$480/week times 52 weeks/year = $24,960/year

For the annual salary job of $22,000 for 45 hours a week, the total annual income is:

$22,000/year (no further calculation is needed)

Comparing the two annual incomes:

Hourly wage job = $24,960/yearAnnual salary job = $22,000/year

Therefore, the job that pays $12 per hour for 40 hours a week offers a higher annual income than the job with an annual salary of $22,000 for 45 hours a week.

What is the lcm of 45 and 54?

Answers

LCM(45, 54) = 45*54/GCD(45, 54)
= 45*54/9
= 270

The least common multiplie is 270.
270 is the com of 45 and 54

What term describes the set of all possible output values for a function?
A. Output
B. Input
C. Range
D. Domain

Answers

Hello,

The answer is option D domain.

Reason:

The answer is option D because Domains are used to find the outputs for a function. Its not input because inputs are usually used to help find the function. Its also not C because range is used to find the median, mean etc... of a group of numbers (which is not a function).

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

Answer:

The answer is option C !!

Step-by-step explanation:

A number w added to 2.3 is more than 18.

Answers

Can be written as
  w +2.3 > 18
w + 2.3 > 18

To solve:
w + 2.3 > 18
subtract 2.3 from both sides
w > 15.7

Hope this helps!

find rhe volume of a cylinder with a diameter of 10 inches and a height of 20 inches

Answers

since the diameter of the cylinder is 10, its radius is half that, or 5, thus

[tex]\bf \textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\ -----\\ r=5\\ h=20 \end{cases}\implies V=\pi (5)^2(20)[/tex]

8. The triangles below are similar. State the following:
1.The similarity ratio
2.Theorem to justify similarity (ex. SSS, SAS, AAA etc)
3.A similarity statement for the two triangles.

Answers

1. Similarity ratio: ΔMON : ΔJOK = 4 : 3

2. Theorem to justify similarity: SAS.
.. MO = 4/3 JO
.. ∠O = ∠O
.. NO = 4/3 KO

3. Similarity statement: ΔMON ~ ΔJOK by SAS.

what is this equation??

Answers

(1, 30) (2, 40)

slope: (40-30)/(2-1)= 10/1= 10

y - 30 = 10(x - 1)

y - 30= 10x - 10

y = 10x + 20 is the equation

Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can also fill the same swimming pool in 4 hours. How many hours will it take 4 large and 4 small pumps to fill the swimming pool.(We assume that all large pumps are similar and all small pumps are also similar.)

Answers

Let R and r the rate of work of the large and the small pumps respectively 4(2R + r) = 1 : 2 large and 1 small work for 4 hours to do 1 job 4(R + 3r) = 1 : 1 large and 3 small work for 4 hours to do 1 job T(4R + 4r) = 1 : Find time T if 4 large and 4 small are to do one job. Solve for R and r the system of first two equations then substitute in the third and solve for T to find the time. T = 5/3 hours = 1 hour 40 minutes.

What are the roots of the polynomial equation?

x^2−14x−32=0

Enter your answers in the boxes.

Answers

the roots are ; 16, - 2

Taylor baked a cake. Suppose she cut the cake into 8 equal size pieces and 6 people ate all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake.

Answers

she could've cut the cake into 6 pieces so everyone could have an equal slice of cake or she could've cut it into 12 pieces and everyone could have 2 pieces each equally 

hope this helps :)

imneed to know the step by step answer to 7.7times11

Answers

The answer is:  " 84. 7 " .
__________________________________________________

Explanation:
__________________________________________________ 
 
7.7 * 11 = ?
__________________________
Solve for "77 * 11" :
__________________________
   77
*  11
____
   7 7
7 7(0)
____
8 4 7
________________________________________________________
Now, take "847" ; move the decimal back one space, to get the answer to:

" 7.7 * 11 " ; which is:  " 84.7 " .
 ________________________________________________________

A lot of 100 semiconductor chips contains 15 that are defective. three chips are selected at random from the lot without replacement. what is the probability that the third chip is defective?

Answers

D=event that chip selected is defective
d=event that chip selected is NOT defective

Four possible scenarios for the first two selections:
P(DDD)=15/100*14/99*13/98=13/4620
P(DdD)=15/100*85/99*14/98=17/924
P(dDD)=85/100*15/99*14/99=17/924
P(ddD)=85/100*84/99*15/98=17/154

Probability of third selection being defective is the sum of all cases,
P(XXD)=P(DDD)+P(DdD)+P(dDD)+P(ddD)
=3/20


(1+(0.065÷365))^365t=4

Answers

This is the future value quadrupled in t years at an annual interest rate of 6.5% compounded daily.  We need to find t.

1*(1+0.065/365)^(365t)t=4
take log on both sides,
365t(log(1+0.065/365)=log(4)
=>
365t=log(4)/log(1+0.065/365)
t=(log(4)/log(1+0.065/365))/365
=(1.38629/.000178066)/365
=21.33 years

Check with the rule of 69, applicable to continuous compounding (an approximation to current problem) to double money, it take 69/interest rate in % years.
=69/6.5
=10.62 years
To double twice (quadruple), it takes twice 10.62
=21.24 years, not that far from 21.33 that we got earlier.

An electronics superstore normally sells a new smartphone for $200, but it is currently offering a 50% discount off the price. The same phone is available online for $200; the website is offering 25% off the phone, plus another 25% discount off all purchases. Where should you buy the phone to get the better deal? Why?

Answers

You should buy the phone with the 50% discount.

If you buy this phone, the cost will be $100.  If you buy it through the website, you would first take 25% off:

200-(0.25*200) = 150

Then you take another 25% off:
150 - (0.25*150) = 112.50.

It is cheaper to take the 50% discount.

You should buy the phone at the electronic superstore at a 50% discount to get a better deal compared to the website.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 3% is two-hundredth, which means 3%=3/100=0.03.

Given that the cost of a smartphone =  $200

Discount offer = 50% off

So the amount to be paid = $200 - 0.50 × $200 = $100

Now by purchasing through the website cost of a smartphone = $200

Discount 25% so it will be $200 -0.25 × $200 = $150.

Other 25% off will be $150 - 0.25×$150 = $112.5 hence, it will good to buy the phone at the electronics superstore.

For more about the percentage

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A class is made up of 8 boys and 8 girls

Answers

Hello,

The answer is "8:8 or 1".

Reason:

There are 8 boys and 8 girls therefore the ratio would be...

8:8

8:8=1

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

the sum of two numbers is 16 , and there difference is 8. determine the numbers by solving the following systems of equations,using x and y to represent the unknown numbers. x+y= 16
x_y=8

Answers

the answere is 8 because 8x8 = 16      y=x8

Answer:

Step-by-step explanation:

Write 14/3 as a decimal. If necessary, use a bar to indicate which digit or group of digits repeats.

Answers

4.6 with a bar on top of 6.

The value of number 14 / 3 will be;

⇒ 14 / 3 = 4.6666.....

What is Number system?

A system of writing to express the number is called number system.

Given that;

The number is,

⇒ 14 / 3

Now,

Solve the expression by dividing the number as;

The number is,

⇒ 14 / 3

⇒ 3.6666666.....

⇒ 4.66⁻⁻⁻

Thus, The value of number 14 / 3 will be;

⇒ 14 / 3 = 4.66⁻⁻⁻

Learn more about the decimal number visit:

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Will someone please do number 4 and 6 for me ?

Answers

4.  all for angles need to equal 360
  90 +90 + 42 = 222
360-222 = 138
y = 138 degrees
 x - 42 degrees


6. x = arctan(8/4) = 63.43 degrees ( round as needed)
  y =  16 / tan(63) = 8.15 ( round as needed)

Select from the drop-down menus to correctly complete each statement. Quadrilateral ABCD can be mapped onto quadrilateral EFGH with a followed by a . The figures are . Coordinate plane with x axis from negative -10 to 2 and y axis from negative 2 to 10. Quadrilateral A B C D has vertices A begin ordered pair negative 9 comma 5 end ordered pair, B begin ordered pair negative 7 comma 3 end ordered pair, C begin ordered pair negative 5 comma 4 end ordered pair, and D begin ordered pair negative 6 comma 8 end ordered pair. Quadrilateral E F G H has vertices E begin ordered pair negative 2.5 comma negative 4.5 end ordered pair, F begin ordered pair negative 1.5 comma negative 3.5 end ordered pair, G begin ordered pair negative 2 comma negative 2.5 end ordered pair, and H begin ordered pair negative 4 comma negative 3 end ordered pair.

Answers

This can be done with a dilation followed by a rotation.

When you plot the points and compare the coordinates, you can see that the coordinates of E, the image of A, are cut in half, the x- and y-values are swapped, and the y-value is negated.  A dilation will cut it in half, and a rotation will swap the coordinates and negate them.

Quadrilateral ABCD can be mapped onto quadrilateral EFGH by applying a factor scale of sqrt{2/3}, then by translating each vertex using the coordinates of quadrilateral EFGH. By performing these geometric transformations, you will find that the two quadrilaterals are similar.

This is a problem of mathematical transformation in the field of geometry. Quadrilateral ABCD can be mapped onto quadrilateral EFGH using a scale factor followed by a translation.

First, let's find the scale factor. The distance from A(-9,5) to B(-7,3) is sqrt{(7+9)2 + (3-5)2} = sqrt{4+4} = 2sqrt{2}.

The distance from E(-2.5,-4.5) to F(-1.5,-3.5) is sqrt{(2.5+1.5)2+(4.5+3.5)2} = sqrt{4+8} = 2sqrt{3}.

Hence, the scale factor is 2sqrt{2}/2sqrt{3} = sqrt{2}/sqrt{3} = sqrt{2/3}.

Next, to perform the translation, shift over all the vertices of quadrilateral ABCD by adding to their x-coordinates the difference between the x-coordinate of vertex E and the x-coordinate of vertex A (which, after scaled, is -9*sqrt{2/3}), as well as similarly adding to their y-coordinates the difference between the y-coordinate of vertex E and the y-coordinate of vertex A (which, after being scaled, is 5*sqrt{2/3}).

After carrying out the scaling and translation, quadrilateral ABCD will be exactly mapped onto quadrilateral EFGH, demonstrating that the two figures are similar.

For more such questions on geometric transformations, click on:

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A triangle has sides with lengths of 10 millimeters, 14 millimeters, and 18 millimeters. Is it a right triangle?

Answers

No, Because In Order For This Polygon To Be A Right Triangle One Of The Sides Must Consist Of A 90 Degree Angle

A garden has 2 yellow rose plants. These rose plants represent 1/8 of the plants in the entire garden. How many plants are in the entire garden?

Answers

16 plants in the garden

what number multiplied by itself 3 times equals to 125?

Answers

Hello,

Here is your answer:

The proper answer to this question is "5".

Here is how:

All you have to do divide 125 by 3!

5*5*5=125

Exponent form:

=5^3

Your answer is 5!

If you need anymore help feel free to ask me!

Hope this helps!
Final answer:

The number that when multiplied by itself 3 times equals 125 is 5.

Explanation:

To find the number that when multiplied by itself 3 times equals 125, we need to find the cube root of 125. The cube root of 125 is 5, so the number is 5.

I will mark brainiest is my answer is correct need legit answer thanks

Answers

=0.26 + 3.665
= 3.925
= 4 gallons rounded

ANSWER: 4 gallons, you are correct

Hope this helps! :)

steven needs to purchase enough wallpaper to cover a wall measuring 84 square feet. if the width is 5 feet more than the length, what are the dimensions of the wall?

Answers

84 by 89 feet squared

Work out the area of rectangle APQR.

Answers

The rectangle diagonally into 2 right triangles: one with base 5 and height 13, another with base 12 and height 5. Doubling their areas (5*13+12*5) gives 180!

The area of a rectangle with a base of 5 cm and a height of 13 cm is indeed 180 square centimeters..

Here's a simpler explanation:

Imagine slicing the rectangle diagonally into two right triangles. One triangle has base 5 cm and height 13 cm. The other triangle has base 12 cm and height 5 cm (using Pythagoras to find the missing side).

Now, the area of the rectangle equals the sum of the areas of these two triangles. Adding their areas (5 * 13 + 12 * 5) gives us 65 + 60, totaling 180 square centimeters.

Therefore, the true area of the rectangle is 180 square centimeters, not 65 or any multiple of the individual base and height alone. This hidden relationship between the diagonal and sides creates the surprising answer.

What are the values of a and b? Please explain!

Answers

For this case what you should do is follow the following steps:
 Step 1: 
 Pythagorean theorem to the big triangle. 
 Step 2:
 Pythagorean theorem the small triangle.
 Step 3: 
 Solve the system of two equations with two unknowns.
 Answer:
 option 1. 
 See attached image.

x+2y=6
2x+4y=12

I need to use substitution to solve, may anybody help?

Answers


[tex]x + 2y = 6[/tex]

[tex]x = - 2y + 6[/tex]
[tex]2( - 2y + 6) + 4y = 12[/tex]
then find y and plug that y value into one of the original equations to find x

Hope this helps!
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