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
Triss [41]
2 years ago
13

If a circle is 9 pi cm what is the radius of the circle

Mathematics
1 answer:
olganol [36]2 years ago
5 0

Answer:

<h2>          4.5 cm</h2>

Step-by-step explanation:

L = 2×π×r

9π cm = 2πr

9 cm = 2r

r = 4.5 cm

You might be interested in
True or false? An airplane is flying west at 200 km/h. Two hours later, it is flying west at 300 km/h. Its average acceleration
alex41 [277]
I'm pretty sure its true, not 100%.
4 0
2 years ago
Find the missing angle measures of the following figure ​
Lisa [10]

Answer:

1 = 68

2 = 68

3 = 125

Step-by-step explanation:

Hey there!

To find angle 1 all we have to do is subtract the given angles from 180 because remember all of the angles in a triangle add up to 180

180-73-39=68

1=68

angle 2 is vertical to angle 1 therefore they are congruent angles so

2 also equals 68

So we know that the interior angles in a 4 sided shape add up to equal 360

so to find 3 we subtract the given angles from 360

360-90-77-68=125

so 3 = 125

6 0
2 years ago
10. The perimeter of a regular nonagon is 162 inches. The apothem is 97.8 inches. Find the area.
Katen [24]

Answer:

The area of the regular nonagon is 7921.8 square inches.

Step-by-step explanation:

Geometrically speaking, the area of a regular polygon is determined by following area formula:

A = \frac{p\cdot a}{2} (1)

Where:

A - Area of the regular polygon, in square inches.

p - Perimeter, in inches.

a - Apothem, in inches.

If we know that p = 162\,in and a = 97.8\,in, then the area of the regular nonagon is:

A = 7921.8\,in^{2}

The area of the regular nonagon is 7921.8 square inches.

8 0
2 years ago
The price of gasoline was 96¢ a gallon<br> before it went up 25%. How much did<br> it go up?
maria [59]
It went up 24c because 25% of 96c is 24c
5 0
3 years ago
Change this equation, in standard form, to slope-intercept form: 2x + 3y = 18
Mandarinka [93]

Answer:

y = -2/3 + 18

Step-by-step explanation:

2x + 3y = 18       -----    here is the equation...

-2x          - 2x     -----    bring the 2x to the other side

3y = -2x + 18      -----    now you have to divide everything by 3 to get y by itself

y = -2/3 + 18       -----    Done!

6 0
2 years ago
Read 2 more answers
Other questions:
  • Please help! I really need help!
    8·1 answer
  • A=2x+6xz solve for x
    8·1 answer
  • 3(x+6)+8x how to do the 7th grade steps to get the answer
    7·2 answers
  • Which is the value in this equation 4x+5=3x+4
    11·1 answer
  • Andrew invited 30 friends to his birthday party. Eighty percent of his friends came to the party the other 20 did not come to th
    15·1 answer
  • I hope you guys can help me with this question :)
    11·2 answers
  • Given the data below, what is the median?<br> 2, 4, 7, 4, 3, 1, 6, 8, 10, 15, 12, 22, 12, 15, 11
    6·2 answers
  • Evan has equal numbers of pop songs, jazz songs, and rock songs loaded on his personal music player. He has it set to play songs
    7·1 answer
  • 67 + - 6 - 35 + 18 + - 42<br> 1
    12·1 answer
  • Plzz help due in 2 mins
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!