x²+ y²+ 20x + 8y - 84 = 0 is equation of the circle .
What is a circle, exactly?
A circle is a closed, two-dimensional object in which all points in the plane are equally spaced apart from the center.
The symmetry line of reflection is formed by each line that traverses the circle. Additionally, it is rotationally symmetric about the center for all angles.
the equation of the circle with center (-10,-4) and a point on the required circle is (4,-2).
Clearly, radius of the circle will be distance between the center and the point on the circle.
r = √( -10 - 4 )²+ ( -4 + 2 )²
r = √196 + 4
r = 10√2
We know that circle with center at (h.k) and radius r has the equation
( x - h )² + ( y - k )² = r²
We have circle with radius 10√2 and center at (-10,-4) and its equation will be
( x+ 10 )² + ( y + 4)²= ( 10√2)²
x²+ y²+ 20x + 8y - 84 = 0
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Answer:
Radius
r=11
Diameter
d=22
Circumference
c=22π
Area
a=121π
Standard form equation
(x+9)^2+(y-3)^2=121 is the awnser you most likley are looking for
Expanded form equation
x^2+y^2+18x-6y-31=0
What are the coordinates for
y = 3x + 5
y= -2x + 20
x=16
y=-12
Hope this helped :T
volume can be measured by counting_____ in a _____ figure.
A. Cubes
B. Squares
C. two dimensional
D. Three dimensional
PLEASE HELP!!
Answer:
volume can be measured by counting cubes in three dimensional
Step-by-step explanation:
volume can be determined by counting cubes. and there has to be a 3D
figure to find value of the volume
Have a nice day.
mr. wallace surveyed 75 students at poole middle school to find out the students favorite place to eat lunch. the results are shown below. which table shows the approximate relative frequencies of mr. Wallace's data?
Here is how the table would look (Although I cannot see the table, I have done this question before).
Cafeteria Outside Total
Boys 21% 28% 49%
Girls 32% 19% 51%
Total 53% 47% 100%
A room is thrice as long as the breadth. It contains 270m^3 of air and the cost of painting its four walls at Rs 15 per m^2 is Rs. 3600, find the cost of carpeting the floor at Rs. 98 per m^2.
Answer: ₹2646
Step-by-step explanation:
Given
The volume of the room is [tex]V=270\ m^3[/tex]
cost of painting the walls is ₹[tex]3600[/tex] at the rate of [tex]15\ m^2[/tex]
So, the area of walls is
[tex]\Rightarrow A=\dfrac{3600}{15}\\\\\Rightarrow A=240\ m^2[/tex]
This the area of 4 walls i.e.
[tex]\Rightarrow 240=2[hl+hb]\\\Rightarrow 120=h[l+b]\\\Rightarrow 120=4bh\quad [\text{length is thrice of width}]\\\Rightarrow 30=bh\qua \ldots(i)[/tex]
The volume of the room is given by
[tex]V=l\times b\times h\\270=3b\times b\times h\\90=hb^2\quad \ldots(ii)[/tex]
Divide (i) and (ii)
[tex]\Rightarrow \dfrac{90}{30}=\dfrac{b^2h}{bh}\\\\\Rightarrow b=3\ m[/tex]
So, the length of the room is
[tex]l=3b\\l=3\times 3\\l=9\ m[/tex]
The area of the floor is
[tex]\Rightarrow A_o=l\times b\\\Rightarrow A_o=9\times 3\\\Rightarrow A_o=27\ m^2[/tex]
The cost of flooring is
[tex]\Rightarrow 27\times 98\\\Rightarrow Rs.2646[/tex]
who is Pythagoras and his contributions to the world of mathematics
Let f(x) = 2^x and g(x) = x-4. The graph of (fºg)(x)
is shown below.
What is the range of (fºg)(x)?
y>0
All real numbers except y=0
y<=0
All real numbers
Answer:
I believe it is b but I'm not completely sure sorry if I'm wrong
Answer:
D all real numbers
Step-by-step explanation:
just did the test on edge plz vote brainliest
this is area right???
Answer:
Yes
Step-by-step explanation:
So permiter is two*lengths plus 2*width of a shape.
Area is the length times the width.
For examplel if a square has a length of 2, and a width of 3 the permiteter is:
2*2+3*3=
4+9
=
13
On the other hand, area would be:
2*3
=
6
I hope this helps!
Imani stopped at the Post Office and mail three packages of weight of each package is given below.if the heaviest package is removed find the total weight of the remaining two packages
Answer: How to calculate package size and weight, and definition of ... Width is the remaining side that is also perpendicular to the length and is ... For rectangular packages, Girth would be Height multiplied by two plus Width ... it will require additional postage when it is mailed or delivered. ... All Rights Reserved. Hope this helped gurly/guy :)
Step-by-step explanation:
3. If a frame usually sells for $13, and is on clearance for 55% off:
a. How much is the discount?
b. What is the final price of the frame?
Answer:
discount is -7.15
final price is $5.68
Step-by-step explanation:
55% of 13 = 7.15
subtract 7.15 from 13
A tire has a circumference of 69.1 inches. To the nearest inch, which is the diameter
of the tire?
Answer:
22 inches
Step-by-step explanation:
so to find the diameter you divide the circumference by pi(3.14)
69.1÷3.14=22.006
now rounding that you get 22
Solve for x and explain how you got your answer please
-3x -5 = 16
Answer:
x = -7
Step-by-step explanation:
-3x -5 = 16
step 1 add 5 to each side
-5 + 5 cancels out
16 + 5 = 21
we now have -3x = 21
step 2 divide both sides by -3
-3x / -3 = x
21 / - 3 = -7
we're left with x = -7
Answer:
x = -7
Step-by-step explanation:
-3x -5 = 16
+5 +5
-3x = 21
-3x/-3 = 21/-3
x = -7
Nia works at a gas station and earns $15.50 per hour last week , she worked 29 hours .What was her gross pay?
Answer:
$449.5
Step-by-step explanation:
Given data
Earning rate= $15.50 per hour
Number of hours worked = 29 hours
Hence the amount earned is
=15.5*29
= $449.5
Hence the total amount she earned is $449.5
I need help with this and also the explanation plz
Answer:
The correct answer is 0 or A
Step-by-step explanation:
2/0+2 + 1/5 = 6/0+5
2/2 + 1/5 = 6/5
1 + 1/5 = 6/5
5/5 + 1/5 = 6/5
6/5 = 6/5
(8x4 + 7x3 - 9) – (5x2 - 8x + 6)
Answer:
(8x4 + 7x3 - 9) – (5x2 - 8x + 6)
Can someone help me out with my math homework my grades are bad
Answer:
In first box, it’s 5
and then it’s 6/10
Step-by-step explanation:
What is the value of x?
O 103
10
10
X
O 513
o 5
60°
2
3
4
5
6
7
8
9
10 11
Answer:
[tex]5\sqrt{3}[/tex]
Step-by-step explanation:
A triangle with angles of 30-60-90 will always have sides that measure in the following proportions:
The side opposite the 30* angle = a
The side opposite the 60* angle = [tex]a\sqrt{3}[/tex]
The side opposite the 90* angle = 2a
(I used "a" here because your question uses "x" and I don't want to confuse things, but usually people use "x" rather than "a")
They gave us that the hypotenuse (the side opposite the 90* angle) is 10, from there we can figure out the other sides:
Since the side opposite 90* is 2a, and 2a = 10, divide 10 by 2 and you get a = 5.
Once we know what "a" is, we can fill in the rest:
30* = 5
60* = [tex]5\sqrt{3}[/tex]
90* = 10
PLS HELP ME PLS PLS
what types of pollution in the great lakes has human activity caused? check all that apply
industrial waste
soil erosion
sewage disposal
runoff
air pollution
PLSS HELP Solve x/3 = 6 for x. A) x=9 B) x=2. C) x=3. D) x= 18
Answer:
D: 18
Step-by-step explanation:
I need Answer Immediately!!!!!
Answer:
point of intersection are
(-2,0) and (0,1)
we have
equation of a line is :
(x-x1)=(y2-y1)(/(x2-x1)*(y-y1)
(x+2)=(1-0)/(0+2)*(y-0)
x+2=½y
y=2x+4 is a required equation in a slope intercept form.
5 (x + 8) = -10 what's the answer
Answer:
x = - 10
Step-by-step explanation:
5(x + 8) = - 10
5x + 40 = - 10
5x + 40 - 40 = - 10 - 40
5x = - 50
5x ÷ 5 = - 50 ÷ 5
x = - 10
what is 2 + 2 times 0 divided by 4 times 99
plus 1
Step-by-step explanation:
[tex]2 + 2 \times \frac{0}{4} \times 99 + 1 \\ = 2 + 0 + 1 \\ = 3[/tex]
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
Answer:
1
Step-by-step explanation:
Step 1: 2 plus 2
=> 2 + 2
=> 4
Step 2: times 0
=> 4 * 0
=> 0
Step 3: divided by 4
=> 0/4
=> 0
Step 4: time 99
=> 0 * 99
=> 0
Step 5: plus 1
=> 0 + 1
=> 1
Therefore the final answer = 1
Hope this helps!
Complete the square to find the vertex of this parabola. x2-16y-4x-12=0
Answer:
Step-by-step explanation:
x^2-16y-4x-12=0
Transpose and separate x and y
16y = x^2-4x-12
16y = (x^2-4x+4) -16
16y = (x-2)^2 -16
y = (1/16)(x-2)^2 -1
This means that the vertex is at
(x-2)=0 or x=2
y = -1
=> vertex (2,-1)
please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
5/12.
as a decimal it is 0.4167 to the nearest ten thousandth.
Step-by-step explanation:
tan B = opposite side/adjacent side
= 10/24
= 5/12.
Answer:
I think the correct answer is 5/12
What is the length of the line?
Answer:
Its D
square root of 37 = 6.0
Step-by-step explanation:
A skydiver jumps from a plane 10,000 feet above ground level. The height of the skydiver above the ground, in feet, can be modeled using the polynomial −32t2+10,000 in the absence of friction. Use the interactive below to calculate the average velocity over various intervals and to make observations about the relationship between average velocity and instantaneous velocity.
Answer:
Step-by-step explanation:
average velocity=distance/time= ending position−starting height ending time−starting time
Review the graph of the function f(x).
On a coordinate plane, a curve starts at closed circle (1, negative 2) and curves up through (0, 1) to (negative 5, 2).
The function shown has an endpoint discontinuity. Which statement describes the one-sided limits at the discontinuity?
Answer:
b
Step-by-step explanation:
edg 2020
'Function' is described as 'a relation in which each component of the domain is related to precisely one component of the codomain.'
B). The statement second "Limit of f(x) = - 2 as x approaches 1 minus. Limit of f(x) DNE as x approaches 1+" correctly elaborates the single-sided limits when the end-point dislocates.
'End-point discontinuity' is described as a function that carries a shut endpoint at its interlude.While 'one-sided limits' are described as the limit(any out of the two) belonging to a function (x) when x advances towards either side(left or right). Thus, it limits x and the rest values remain the same. In the given function, the one-sided limit of the function(x) equals to -2 when it advances towards -1 and DNE when it advances towards 1+.Thus, option B is the correct answer.
Learn more about 'function' here:
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I need help with this please it’s?
Answer:
the answer to the question is C
The area of the triangle shown is 9 cm2.
3.6 cm
5 cm
3 cm
What is the perimeter of the triangle?
Answer:
11.6
Step-by-step explanation:
Sweet onions are on sale for $0.79 per pound. If an onion weighs 8 oz, how much does it cost to buy 5 onions?
Answer:
a pound is 16 oz. so 2 onions are a pound. meaning 5 onions equal 2 1/2 pounds.
2.5 × 0.79 = $1.975 (about $1.98)
Help I give Brainlist
What is a explication of functions with examples?
Step-by-step explanation:
function is a binary relation between two sets that associates to each element of the first set exactly one element of the second set. for ex. if x include 1,2,3 and y include 0,9.8 we aaythere is a relation between x and y that make 1 from x equal with 0 from 7 or 3 from x equals with 8 from 6.