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
svetoff [14.1K]
3 years ago
8

Here is the equation of a circle in standard form.

Mathematics
2 answers:
Masteriza [31]3 years ago
5 0

Answer:

C

Step-by-step explanation:

The equation is in the standard form for a circle:

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

where (h,k) is the center, and r is the radius

If we compare the 2 equations:

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

(x + 10)2 + (y + 9)2 = 100

We can see that r^2 is equal to 100. Let's set them equal to each other.

r^2=100

Since r is being squared, take the square root of both sides. This will cancel out the exponent.

\sqrt{r^2}=\sqrt{100}

r=10

So, our radius is 10, or choice C

LenKa [72]3 years ago
5 0

Answer:

c

Step-by-step explanation:

OMY

I was so thrown off my the 2's

square root of 100 = 10

You might be interested in
PLZ TELL ME IF THIS IS RIGHT!!! THX
emmasim [6.3K]

Answer:

correct

Step-by-step explanation:

x means up and down and it is at -3

y means side to side and it is at -7

5 0
3 years ago
Factorise fully 9x squared - 6xy
prisoha [69]
3x(3x-2y) 

you have to find a common factor between the two numbers. in this case it's three, so you just divide each number by three.
4 0
3 years ago
Which statement below best describes the transformation of parallelogram WXYZ to parallelogram W' X' Y' Z'?
Arisa [49]
The answer is B. A reflection across the x-axis.
6 0
3 years ago
Read 2 more answers
Please solve 7(b=2) = 49
Luden [163]
Here is your answer
Please mark it brainliest

7 0
3 years ago
During a flu epidemic, 35% of the school's students have the flu. Of those with the flu, 90% have high
frutty [35]

Answer: 0.8015

Step-by-step explanation:

Let F= event that a person has flu

H= event that person has a high temperature.

As per given,

P(F) =0.35

Then P(F')= 1- 0.35= 0.65               [Total probability= 1]

P(H | F) = 0.90

P(H|F') = 0.12

By Bayes theorem, we have

P(F|H)=\dfrac{P(F)\timesP(H|F)}{P(F)\timesP(H|F)+P(F')\timesP(H|F')}\\\\=\dfrac{0.35\times0.90}{0.35\times0.90+0.65\times0.12}\\\\=\dfrac{0.315}{0.315+0.078}\approx0.8015

Required probability = 0.8015

8 0
3 years ago
Other questions:
  • How much is 12 ft by 14 ft in square feet
    13·2 answers
  • How can u show 198,000 as a power of 10 using a exponet
    5·1 answer
  • Which conversion factors are used to convert 12 m/s to kilometers per minute?
    5·1 answer
  • Solve x^2 - x - 5/2 = 0 using the quadratic formula.
    14·1 answer
  • Compare the line passing through the points (–2, –9) and (4, 6) to the line given by the equation y = 25x – 4.
    8·1 answer
  • Brandi is half as old as candi. Randy is 10 years older than brandi.if candi is 22, how old is randy
    13·1 answer
  • When computing the standard deviation, does it matter whether the data are sample data or data comprising the entire population?
    7·1 answer
  • Solve the equation 5w-5+4w-4
    15·1 answer
  • What is xt8=-3 plz help
    13·1 answer
  • Can someone please help me with this
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!