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
andrezito [222]
3 years ago
10

Find the radius for a circle defined by (x - 1)2 + y2 = 81.

Mathematics
1 answer:
Schach [20]3 years ago
3 0
The radius is 9
The equation is
(x-h)^2 + (y-k)^2 = r^2
You might be interested in
What is the product of -2x^3+x-5 and x^3-3x-4 ?
murzikaleks [220]
To find the product of <span>-2x^3+x-5 and x^3-3x-4, we need to multiply each term in the first polynomial by the second polynomial. (So, x^3 - 3x - 4) times ....
-2x^3 = -2x^6 + 6x^4 + 8x^3
x = x^4 - 3x^2 - 4x
-5 = -5x^3 + 15x + 20
If we add all these together, we get (-2x^6 + 7x^4 + 3x^3 - 3x^2 + 11x + 20)</span>
6 0
3 years ago
The following table shows a proportional relationship between mmm and nnn.
Marina CMI [18]

Answer:

70707mmm = 111nnn

Step-by-step explanation:

Using the basic equation of a line:

y = mx + c;. where m is slope and c is intercept on y axis.

Let mmm = y and nnn = x

(i) 333 = 212121m + c

(ii) 555 = 353535m + c

Making c the subject of the formula in both (i) and (ii)

c = 333 - 212121m = 555 - 353535m

353535m -212121m = 555 - 333

141414m = 222

m = 111/70707

Substitute in (i) above

c = 333 -333 = 0

Hence; y = 111/70707x + c

Finally, mmm = 111/70707 nnn

i.e. 70707mmm = 111nnn

Hope this helps.

5 0
3 years ago
Read 2 more answers
please help 30 points !! in a proportional relationship when Y=2 when X=8 Which of the following equations would describe this r
Alex777 [14]

Answer:

(1)

Step-by-step explanation:

We will try:

(1) y = \frac{1}{4}x => 2 = 2 (seems legit)

(2) y = 4x => 2 = 32 (nope)

(3) y = x - 6 => 2 = 2 (yes but actually no because it is proportional relationship)

(4) y = \frac{1}{2}x - 2 => 2 = 2 (like the above)

8 0
3 years ago
um aluno tinha uma quantidade de questoes para resolver se ja resolveu a quinta parte da sua tarefa então a razão entre o numero
DochEvi [55]

Answer:

can you please simplify that in English?

4 0
3 years ago
5. Two unbiased dice are rolled. Calculate the probability that the sum of the two dice is:
IceJOKER [234]
The sample space has 36 possible pairs from 1,1 1,2 1,3 up to 6,5 and 6,6

(a). Three pairs add to 4 1,3 2,2 and 3,1 so P(4) = 3/36 = 1/12

(b). 6 pairs add to 7 so P(7) = 6/36 = 1/6

(c) 15 pairs add to less than 7 so P(<7) = 15/36 = 5/12
5 0
2 years ago
Other questions:
  • Which property does the equation illustrate (x+5)+9=x+(5+9)
    9·1 answer
  • Determine which of the following ordered pairs satisfies the given system of equations.
    6·1 answer
  • I REALLY NEED HELP
    9·1 answer
  • Due to fire laws no more than 720 people may attend a performance at metro auditorium. the balcony holds 120 people. there are 3
    11·2 answers
  • Indicate the method you would use to prove the two A's
    10·1 answer
  • 66 times 26 times 60 then multiply 1/2
    11·2 answers
  • ETF is an example of
    7·1 answer
  • Solve 7w^2+42=98 , where w is a real number
    12·1 answer
  • Find the surface area of the prism or pyramid. Round to the nearest whole number if necessary.
    12·1 answer
  • A. A 5in radius ball is in a
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!