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
kherson [118]
3 years ago
9

What is the radius of the following circle?

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
8 0

Answer:

The radius is: 1

Step-by-step explanation:

The equation of a circle in center-radius form is:

(x - h)^2 + (y - k)^2 = r^2

Where the center is at the point (h, k) and the radius is "r".

Given the equation of the circle:

x^2+y^2=1

You can identify that:

r^2=1

Then, solving for "r", you get that the radius of the circle is:

r=\sqrt{1}\\\\r=1

erma4kov [3.2K]3 years ago
3 0

Answer:

Radius = 1

Step-by-step explanation:

It is given that equation of a circle is x² + y² = 1

<u>Points to remember</u>

Equation of a circle with center(h, k) and radius r is given by,

(x - h)²  + (y - k)² = r²

<u>To find the radius of circle</u>

Compare the two equations

x² + y² = 1  and (x - h)²  + (y - k)² = r²

we get the center is (0, 0)

therefore we can write

r² = 1

r = 1

Therefore radius r = 1

You might be interested in
Divide 36 books into two groups so the ratio is 5 to 7. (Use the double number line strategy)
lutik1710 [3]

A ratio of 5:7 means out of 12 books, 5 are in one category and 7 are in another. (The “category” isn’t specified in this problem.)


So here we’re STARTING with 36 books; we want to find a ratio that is equal to 5:7 and adds up to 36. Well 36 = 3(12), and so if we multiply each number in the ratio by 3 as well, we might get what we want. Doing that gives us 15:21, which adds up to 36 and is equal to 5:7. Boom, that’s the answer.


P.S. Here’s a question you can think about: why do ratios stay the same when you multiply each number by the same amount? (For example, why is 3:1 the same as 6:2?)

7 0
2 years ago
What is the remainder in the synthetic division problem
denis-greek [22]

Answer:

C

Step-by-step explanation:

1 | 4   6   - 2

        4     10

  ------------------

   4   10    8 ← remainder

 

3 0
3 years ago
Read 2 more answers
A survey of pet owners found that on average, they spend $1,225 annually per pet, with a standard deviation of $275. Between whi
earnstyle [38]

Answer:

B.$675 and $1,775

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Suppose sin(A) = 1/4. use the trig identity sin^2(A)+cos^2(A)=1 to find cos(A) in quadrant II. around to ten-thousandth.
larisa86 [58]

In quadrant II, \cos(A) will be negative. So

\sin^2(A) + \cos^2(A) = 1 \implies \cos(A) = -\sqrt{1 - \sin^2(A)} = -\dfrac{\sqrt{15}}4 \approx \boxed{-0.9682}

8 0
1 year ago
an auto transport truck holds 12 cars. A car dealer plans to bring in 1150 new cars in June and July. If an auto transport truck
marusya05 [52]

Answer: 96 truckloads, 95 will be full, the last on will have 10 cars


Step-by-step explanation:  1150/12= 95.888> 95*12=1140, 1140+10=1150


6 0
3 years ago
Other questions:
  • X over negative 10 equals 7
    9·1 answer
  • SUR TUS
    15·1 answer
  • Darragh has a Golden Eagle coin in his collection with a mass of 13.551g. An uncirculated Gold Eagle coin has a mass of 13.714,1
    12·1 answer
  • The given line segment has a midpoint at (−1, −2).
    13·2 answers
  • Q31 George hiked from the top of a hill to the valley floor. The elevation at the top of the hill is
    8·1 answer
  • A six-sided Fair number cubis rolled 100 times as part of an experiment. The frequency of the role of the number 3 is 20. W hich
    7·1 answer
  • You pick a card at random. 4 5 6 6 7 8 9 )) What is P(prime)? Write your answer as a fraction or whole number.​
    13·2 answers
  • The legs of a right triangle measure 10 m and 24 m. What is the length of
    12·2 answers
  • Find a number such that five more than one half the number is three times the number​
    5·1 answer
  • If a1 = 3 and an = (an-1)^2+4 then find the value of a4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!