1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
KonstantinChe [14]
2 years ago
13

What is the value of b for the following circle in general form? x2 + y2 + ax +by+c=0​

Mathematics
1 answer:
liberstina [14]2 years ago
7 0

Answer:

Step-by-step explanation:

<u><em>(1).</em></u> (x - <em>h</em>)² + (y - <em>k</em>)² = <em>r</em>²

where <em>(h, k)</em> are coordinates of a center of the circle with radius <em>r</em>

<u><em>(2).</em></u> ( a ± b )² = a² ± 2ab + b²

~~~~~~~~~~~~~~

( 1 , - 2 ) ; r = 3

( x - 1 )² + ( y + 2 )² = 3²

x² - 2x + 1 + y² + 4y + 4 = 9

x² + y² - 2x + 4y - 4 = 0

a = - 2

b = 4

c = - 4

You might be interested in
One of the largest pumpkins ever grows weighed about 3 4ths ton.how many pounds did the pumpkins weigh?
serg [7]
1500 pounds. 1 ton is equal to 2000 pounds. Divide 2000 by 4 and get 500 multiply by 3 to create 3/4 of a ton and get 1500. 1500 pounds
5 0
4 years ago
Read 2 more answers
Ux+ rx= w; solving for x
taurus [48]
<h2><u>ANSWER</u></h2><h3>UX+RX=W</h3><h3>LETS TAKE X COMMON</h3><h3>X(U+R)=W</h3><h3>X=W/(U+R)</h3>

x = w  \div {u + r}

8 0
3 years ago
Read 2 more answers
PLEASE HELP! URGENT! Exponential function f is being represented by the table (photo attached) the function “g” is an exponentia
Y_Kistochka [10]

Answer:

C) Both functions are decreasing and both are positive on the interval (0;2)

Step-by-step explanation:

As known the exponent function has no minimum and has no maximum.

Otherwise exponent function can be only or increasing or decreasing for all x.

That means that in case y(x2)>y(x1) and  if x2>x1-  function is increasing.

That means that in case y(x2)<y(x1) and  if x2>x1-  function is decreasing.  

Lets check what is going on with the function f(x)

If x1=0        f(x1)=24

If x2=2        f(x2)=0

So    x2>x1 however f(x2)<f(x1)=> function is decreasing

Similarly g(x)

If x1=0   g(x1)=15

If x2=2   g(x2)=0

So x2>x1 however g(x2)<g(x1) => function is decreasing

So bothfunctions are decreasing.

Because f(x) is decreasing the function meaning with argument x1=0 has max in the interval x∈(0;2) And function meaning has the minimum if argument x2=2.   So the function F(x) in interval (0;2) is changing from 24 to 0 => is positive on the interval (0,2)

The same is with g(x) .  g(x) gonna be positive on the interval (0;2)

6 0
4 years ago
Please solve for M&lt;QTR​
Andru [333]

Answer:

m∠QTR = 98°

Step-by-step explanation:

From the picture attached,

Radii of the circle are TQ and TR measuring equal lengths.

Therefore, ΔTQR is a isosceles triangle.

Opposite angles of the equal sides will be equal in measure.

m∠RQT = m∠TRQ = 41°

By angle sum theorem,

m∠RQT + m∠TRQ + m∠QTR = 180°

41° + 41° + m∠QTR = 180°

m∠QTR = 180° - 82°

              = 98°

Therefore, m∠QTR = 98°

7 0
3 years ago
Butch wanted to buy a book about football. The book was $25.00 new. His friend Jake
Lady_Fox [76]

Answer:

B) 40%

<em>10 is 40% of 25.</em>

7 0
3 years ago
Read 2 more answers
Other questions:
  • Kathy spins the spinner below 120 times. How many times is the spinner expected to land on yellow?
    15·1 answer
  • What is the derivative of a function?
    10·1 answer
  • Can someone please help me I really need help please help me
    11·1 answer
  • Trigonometry<br> Trigonometric Functions<br> Given: Sin θ = (2/3), Find: Cosec θ
    10·1 answer
  • Draw the image of ABC under a dilation whose center is P and scale factor is 1/3
    8·2 answers
  • PLZZ HELP find the area of the triangle QRS?
    5·1 answer
  • What is the vertex of the function defined as<br> g(x) = f(x – 5) + 3?
    14·1 answer
  • The children's section is rectangular and has three of its corners at (-10, 10), (-10, 4), and (-3, 10). What is the area of the
    10·1 answer
  • Which line has the same slope as the line passing through (-4,-1) and (-1,8)?
    10·1 answer
  • 6. Select the number of solutions for each system of two linear equations.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!