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
Assoli18 [71]
3 years ago
6

if the area of a circle is represented by A=21π, what is the radius of the circle? round your answer to the nearest tenth

Mathematics
1 answer:
Reptile [31]3 years ago
5 0
The equation is actually
circle area = PI * radius^2
radius = square root (area / PI)


You might be interested in
What is 9 10????????????????????????????
kozerog [31]
9+10=?
9 = 3x3
10= 5x2
3 (from 3x3) x 5 (from 5x2) = 15
3 (from 3x3) x 2 (from 5x2) = 6
15+6=21
Therefore 9+10=21
5 0
3 years ago
4x = -36<br> plz helpppp
san4es73 [151]

Hi there! :)

4x=-36

Divide both sides by 4 in order to isolate x:

x=-9

Hope this helps you and have a nice day!

~Just a joyful teen

SilentNature

8 0
2 years ago
(3ab+2c)^3 what is the answer
svet-max [94.6K]

Answer:

=27a^3b^3+54a^2b^2c+36abc^2+8c^3

Step-by-step explanation:

(3ab+2c)^3

=(3ab+2c) × (3ab+2c) ×

=(3ab+2c)(9a^2b^2+12abc+4c^2)

=(3ab)(9a^2b^2)+(3ab)(12abc)+(3ab)(4c^2)+(2c)(9a^2b^2)+(2c)(12abc)+(2c)(4c^2)

=27a^3b^3+36a^2b^2c+12abc^2+18a^2b^2c+24abc^2+8c^3

=27a^3b^3+54a^2b^2c+36abc^2+8c^3

<em>hope this helps....</em>

5 0
3 years ago
Per
Levart [38]

Answer:

1. 5200+5200=10400

2. 10400-361=10039

Branlyist pls

8 0
3 years ago
In the following activity, match each pair of equivalent expressions.
Vilka [71]

Answer:

1. -8+3x

2. 51x-2+4x2 (squared)

3. 66x +324

4. 6x+2

5.  13 +13x

Step-by-step explanation:

I don't think I really understand the question but I tried to simplify the equations

8 0
3 years ago
Other questions:
  • If 2 marbles are drawn from the jar, one at a time, without replacing the first, what is the probability that the first one is r
    5·1 answer
  • How to make a number line
    10·1 answer
  • Solve the inequality:<br> 2[(2y-1)+y] less than or equal to 5(y+3)
    12·1 answer
  • Investing in bonds! PLS HELP
    5·1 answer
  • A computer programmer charges $45 an hour for a coding projects plus a start-up fee of $150.
    13·1 answer
  • Select the measures that are equal. mark all that apply
    10·1 answer
  • 12.21 is 3.7 times the number p.
    6·1 answer
  • Alejandra drove from Michigan to Colorado to visit her friend. The speed limit on the highway is 70 miles/hour. If Alejandra's c
    9·1 answer
  • Please help if you can &lt;3
    7·1 answer
  • The total surface of the cube measures 54ft. How long is its edge?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!