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
nekit [7.7K]
3 years ago
5

NEED HELP ASAP, WILL GIVE BRAINLIEST

Mathematics
1 answer:
Stella [2.4K]3 years ago
4 0

Given:

The equation of circle is

(x+3)^2+y^2=9

To find:

The polar form of given circle.

Solution:

We have,

(x+3)^2+y^2=9

x^2+2(x)(3)+(3)^2+y^2=9        [\because (a+b)^2=a^2+2ab+b^2]

(x^2+y^2)+6x+9=9

Subtracting 9 from both sides, we get

(x^2+y^2)+6x=0

We know that, x^2+y^2=r^2 and x=r\cos \theta.

r^2+6(r\cos \theta)=0

r(r+6\cos \theta)=0

r=0 and r+6\cos \theta=0

We know that, r is radius it cannot be 0. So,

r+6\cos \theta=0

r=-6\cos \theta

Therefore, the correct option is A.

You might be interested in
Michaela spent 5/6 of an hour reading on each of 3 days this week. She spent 3/4 of an hour on each of 2 days this week doing sc
Kay [80]
5/6 of an hour is 50 min. So 50 times 3 equals 150 min for reading. 3/4 of an hour is 45 min. 45 times 2 equals 90 min for science. And 1/2 of an hour is 30 min. So 30 times 4 equals 120 mins for math. Add 150,90, and 120 min all together and you get 360 mins total. Divide 360 by 60, and you get 6 hours total that Michaela spent on reading, math, and science. Not 2 1/2.
7 0
3 years ago
Explain how knowing that five divided by eight equals 0.625 helps you write the decimal for four and five eighth
NNADVOKAT [17]
5/8=0.625

4 and 5/8=4+5/8=4+0.625=4.625
you can just seperate the fractions and add
4 0
3 years ago
There are ………………..rational numbers between 2 and 3
EastWind [94]

Answer:

infinite many

Step-by-step explanation:

hope this helps u

6 0
2 years ago
Read 2 more answers
Find the polynomial. {5} is the solution set of A) x^2-5x+25=0 B)x^2+10x+25=0 C)x^2-10x+25=0 D)x^2+5x+25=0
max2010maxim [7]
The answer is  C.)   <span>x^2-10x+25=0 </span>
6 0
3 years ago
Read 2 more answers
You have been told that you need $21,600 today in order to have $100,000 when you retire 42 years from now. what rate of interes
Savatey [412]
You will have to use this formula:
<span>log(1 + rate) = {log(total) -log(Principal)} ÷ Years
</span>log(1 + rate) = {log(100,000) -log(21,600)} <span>÷ </span><span>Years
</span>log(1 + rate) = { 5 -4.3344537512} / Years
log(1 + rate) = <span> <span> <span> { 0.6655462488} / 42
</span></span></span>log(1 + rate) = <span> <span> <span> 0.0158463393 </span> </span> </span>
1 + rate = 10^<span> <span> 0.015846339
</span></span><span>1 + rate = </span>1.0371613856
rate = .0371613856<span>
rate = </span><span>3.71613856%

</span>************************************************************************
Double-Check
Total = principal * (1 +rate)^years
Total = 21,600 * (<span>1.0371613856)^42
</span> <span>Total = 21,600 * </span> <span> <span> <span> 4.6296296291 </span> </span> </span> <span><span> </span> </span> 
Total = 100,000

Correct !!


5 0
3 years ago
Other questions:
  • Joey cut a 10.5 foot length rope into 6 pieces of equal length. How long was each piece?
    13·2 answers
  • A seafood restaurant claims an increase of 1,750.00 over its average profit during a week where it introduced a special of baked
    13·1 answer
  • Please find for y thank you
    8·1 answer
  • A class contains 3 female and 9 male students. Find the probability that a student chosen at random is a male, and then a second
    13·1 answer
  • Find the inverse of 3x - 6
    9·1 answer
  • Josh is solving the equation 2 % + 2% and predicts that his
    13·2 answers
  • Subject: Pre-algebra
    11·2 answers
  • PLEASE ANSWER THIS ASAP
    12·1 answer
  • PLS HELP AND DONT PUT LINKS
    9·1 answer
  • Find the perimeter.<br> Write your answer as a fraction, whole number, or mixed number
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!