Identify the center and radius of the circle with equation x2 + y2 - 8x - 4y - 5=0.
center:
radius:

Answers

Answer 1
The center is 4,2
The radius is 5
Hope this helps
Answer 2
x^2 - 8x + y^2 - 4y = 5
(x^2 - 8x + 16) + (y^2 - 4y + 4) = 5 + 16 + 4
(x - 4)^2 + (y - 2)^2 = 25 = 5^2
Centre at (4, 2) with radius = 5

Related Questions

60% of all bald eagles survived their first flight. If 25 randomly selected bald eagles are observed, what is the probability that at least 15 of them will survive their first flight.

a) Use the binomial distribution to approximate the probability.

Answers

Answer:

[tex]100%[/tex][tex]\%[/tex]

Worth 100 Points!

Help, this is after an test. And I still don't understand it. Could someone please help me understand this question related to inverse functions? Thanks!​

Answers

        You were close, and have the right idea, but I think you did it a bit backwards! You want to "flip" it over the y=x line (picture attached below)

       To solve for the inverse, you will find the equation of the original, switch the x and y, then solve for y.

      We can (mostly, I think?) tell the equation for f(x) is as follows, so we switch the y and x for the steps following to solve for y:

[f(x)] y = -2x + 2

[switch] x = -2y + 2

[subtract 2 from both sides / flip equation] -2y = x - 2

[divide both sides by -2] y = -2x -4

So our equation for g(x) will be about y = 2x -4

(inverse so the negative is weird)

Photos:

- first is y=x

- second is the general idea of the inverse for what g(x) should look like

- third is kinda what the graph will look like (digitally)

I know this isn't a *perfect* answer, but I hope it explains it some and helps. Good luck! :D

Find the result when 68 is decreased by 50%.

Answers

Answer:

34

Explanation:

When 68 is decreased by 50%, that would mean that it is decreasing by half of that number. Half of that number would be 34 and that would be your answer.

Simplify the radical please I need sleep it's 1 am I wake up at 4

Answers

Answer:

[tex]4cba*\sqrt{5bc}[/tex]

Step-by-step explanation:

[tex]\sqrt{4^{2} *5a^{2}b^{2}bc^{2} c }[/tex]

[tex]4cba*\sqrt{5bc}[/tex]

Which of the following functions represents an absolute value function?
y = |x - 21
O y = x-2
y = x

Answers

y = |x - 21| represents an absolute value function.

cuanto es un numero elevado a la veinte?​

Answers

Answer:

2?

Step-by-step explanation:

After swimming to a depth of 55 feet below the surface of
the water, a fish swims back up 30 feet. Use a number line
a
to help you create an equation that shows the new location
of the fish in relation to the water's surface.
-80 -70 -60 -50 -40 -30 -20 -10 0
10
Interpret the sum in the context of the problem.
A. The equation is -55 +(-30) = -85. The fish is 85 feet below
the water's surface.
O B. The equation is -55+ 30 = -25. The fish is 25 feet below the
water's surface.
C. The equation is -55+ (-30) = -25. The fish is 25 feet below
the water's surface.
D. The equation is -55+ 30 = -85. The fish is 85 feet below the
water's surface.

Answers

Answer:

Your answer to this question is B. The equation is -55 + 30 = -25. The fish is 25 feet below the water's surface.

Step-by-step explanation:

Hope this helps!

Answer:

B. The equation is -55 + 30 = -25. The fish is 25 feet below the water's surface.

Step-by-step explanation:

HOPE IT HEPL!! :D

does anyone know how to do this​

Answers

Answer:

(2,2)

Step-by-step explanation:

To draw a graph you find the y value for a couple of x values. For a linear equation like the one given, two points are enough because the graph is always a straight line.

First graph

First, convert the equation into the y=... form:

x - y = 0 => y = x

No choose two x values at random, e.g., 0 and 5:

for x=0, you find y=0, so (0,0) is a point on  the graph

for x=5, you find y=5, so (5,5) is a point on the graph

Now plot these two points and draw a line through them.

Second graph

First, convert the equation into the y=... form:

x + y = 4 => y = 4 - x

No choose two x values at random, e.g., 0 and 5:

for x=0, you find y=4, so (0,4) is a point on  the graph

for x=5, you find y=-1, so (5,-1) is a point on the graph

Now plot these two points and draw a line through them.

what do you do when you simplest form and have a left over number. Using the word "to"

Answers

Reduce the fractions

Evaluate for b:

50 = -1/3b + 20

Answers

Answer:

=3000/53

Step-by-step explanation:

In QRS, Q = S, SQ = 5 and RS = 11. Find the length of QR.

Answers

  Angle Q = 31°  

  Angle R = 118°

   Angle S = 31°

Help me please !!!!!

Answers

Answer:4.2 ft/sec, 63 feet, -2 points

Step-by-step explanation:

1.  21 feet/5 sec = 4.2ft/sec

2.  15 sec*(4.2ft/sec) = 63 feet

3.  2-5-3+4 = -2 points

[tex]\sf x-8=12[/tex]

Answers

Answer:

x=20

Step-by-step explanation:

Firstly add 8 in both sides.

Or,x-8=12

or,x-8+8=12+8

Add up:

Or,x=20

[tex]\boxed{\sf Answered \: By\: Subhash} [/tex]

[tex]\boxed{\sf Good\: luck \: for \: your \:assignment} [/tex]

Answer:

[tex]x=20[/tex]

Step-by-step explanation:

[tex]x-8=12[/tex]

[tex]x-8+8=12+8[/tex] ( Add 8 to both sides)

[tex]\sf x=20[/tex]

Find the product of 54 and the sum of 15

Answers

Answer:

6 and 9 are the two numbers that have a sum of 15 and when multiplied + 54

Step-by-step explanation:

At a particular sporting event, find the cost for the missing item.



___________________ = cost of one ticket

Your answer will be marked wrong if you do not include a $ since your answers are a dollar amount.

Answers

Answer:

87$

Step-by-step explanation:

Good luck! I hope this helps!

how to graph x+y=1 & is it linear

Answers

Answer:

Step-by-step explanation:

Plot the points x-intercept and intercept on the graph. Join the two points to get the straight line. This is the graph of the linear equation.

if sin x equal to a/b
what is sin(90-x)​

Answers

Answer:

[tex] \sin(x) = \frac{a}{b} \\ \sin(90 - x) = \sin(90) \cos(x) - \cos(90) \sin(x) \\ \sin(90 - x) = \cos(x) \\ { \sin(x) }^{2} + { \cos(x) }^{2} = 1 \\ { \cos(x) }^{2} = 1 - {( \frac{a}{b})}^{2} = \frac{ {b}^{2} - {a}^{2} }{ {b}^{2} } \\ \cos(x) = \frac{ \sqrt{ {b}^{2} - {a}^{2} } }{ \sqrt{ {b}^{2} } } \\ \boxed{ \sin(90 - x) =\cos(x) = \frac{ \sqrt{ {b}^{2} - {a}^{2} } }{ b} } \\ [/tex]

The value equal to the given trigonometric expression sin(90°-x)​ is √(b²-a²)/b.

Given that, sinx=a/b.

We know that, sinθ=Opposite/Hypotenuse

Here, Opposite = a and Hypotenuse = b

Let the adjacent side be x.

Here, x=√(b²-a²)

Given that, sin(90°-x)​ = cosx

Now, cosx=x/b

cosx=√(b²-a²)/b

Therefore, the value equal to the given trigonometric expression sin(90°-x)​ is √(b²-a²)/b.

Learn more about the trigonometric ratios here:

brainly.com/question/25122825.

#SPJ6

Lee has 14 strawberry scones and 21 Raspberry scones. He wants to make as many identical bags of scones as possible. Each bag should have an equal number of Strawberry scones and an equal number of Raspberry scones. What is the greatest number of bags Lee can​ fill? Explain how you know.

Answers

Answer:

SORRY I DON'T KNOW THE ANSWER BUT I LOVE YOUR PROFILE PICTURE LUFFY IS THE BEST <3 :D

g(x)=-3x+2 and g(x)=-1, find x

Answers

Answer:

x=1

Step-by-step explanation:

PLEASE PROVIDE A PICTURE graph the solution to this system of inequalities in this coordinate plane. 3у > 2х + 12
2x +y < -5

Answers

Answer:

The double shaded region

please somebody answer this last one !!!!!!

Answers

Hope this helps :)

need more help just comment :) :)

Your bedroom is 20 feet long by 12 feet wide. You are make a scale drawing of you bedroom with the scale 1⁄2 inch = 4 feet, what would the dimensions be?

Answers

Divide actual feet by scaled feet then multiply by scale inches:

20 feet / 4 = 5

5 x 1/2 = 2 1/2

12 feet / 4 = 3

3 x 1/2 = 1 1/2

Dimensions are 2 1/2 inches by 1 1/2 inches

Someone pls help me I will make you brain

Answers

Answer: -75

Step-by-step explanation:Because basically the slope is how much money is going down in the loan so 850 minus 75 is 775 so -75 is the answer

-75 is the correct answer i hope i helped you out so i hope i can get brainlist :)

only answer bottom one!! brainliest + 5 stars & a heart <3

Answers

Answer:

$119.98

Step-by-step explanation:

She wants to know how much her membership will be so sence it $59.99 an month you times that by 2, 59.99 × 2 =119.98 and if your rounding

119.98 rounded to nearest whole number is 120

Is head circumference suitable for a bivariate study?

Answers

Yes it is because. Snsndnsnsndbs. Sndndw e

true or false Typically, a plot begins with conclusions that introduce the characters and the conflict they face.

Answers

Answer:

Hello!!

The correct answer is false. The exposition begins with conclusions that introduce the characters and the conflict they face

Hope this helps!!

justify each step and write their properties

2(7-v)-3v

Answers

Answer:

[tex]{ \rm{2(7 - v) - 3v}}[/tex]

• Apply distribution property

[tex]{ \rm{ = 14 - 2v - 3v}}[/tex]

• Simplify:

[tex] = { \rm{14 - 5v}}[/tex]

Answer:

Given, Distributive, Associative, Addition, Simply

Step-by-step explanation:

2(7 - v) - 3v                Given

14 - 2v - 3v                 Distributive

14 + (-2v -3v)               Associative

14 + (5v)                      Addition

14 - 5v                        Simply

if you take 3 apples from 10 apples how many apples do you have

Answers

Answer:

still 10 even tho you took 3

Step-by-step explanation:

12x^2 + ax -20
if 3x + 4 is a factor of the expression above, what is the value of a?

Answers

Answer:

1

Step-by-step explanation:

(3x + 4)(px + q) = 12x^2 + ax - 20

3px^2 + 3qx + 4px + 4q = 12x^2 + ax - 20

3px^2 = 12x^2

p = 4

4q = -20

q = -5

px + q = 4x - 5

(3x + 4)(4x - 5) =

= 12x^2 - 15x + 16x - 20

= 12x^2 + x - 20

= 12x^2 + ax - 20

ax = x

a = 1

On a coordinate plane, 2 rectangles are shown. Rectangle P Q R S has points (negative 3, negative 5), (negative 2, negative 5), (negative 2, negative 1), (negative 3, negative 1). Rectangle P double-prime Q double-prime R double-prime S double-prime has points (negative 5, 5), (negative 5, 4), (negative 1, 4), (negative 1, 5).Which rule describes the composition of transformations that maps rectangle PQRS to P''Q''R''S''?R0,270° ∘ T0,2(x, y)R0,180° ∘ T2,0 (x, y)T0,2 ∘ R0,270°(x, y)R0,2 ∘ T0,180°(x, y)

Answers

Answer:

T0,2 ∘ R0,270°(x, y)

Step-by-step explanation:

Answer:

c or T0,2 ∘ R0,270°(x, y)

Step-by-step explanation:

edge 2021

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