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
sleet_krkn [62]
3 years ago
7

A circle has an area of 324π cm2. What is the radius? a. 18 cm c. 18π cm b. 36π cm d. 36 cm

Mathematics
2 answers:
mars1129 [50]3 years ago
5 0

Answer:

a. 18 cm

Step-by-step explanation:

We are given that a circle has an area of 324π cm2. We are required to determine its radius. The formula for the area of a circle with radius r units is;

A=pi*r*r

We plug in the area given and solve for r;

324pi=pi*r^{2}\\\\r^{2}=324\\\\r=18

The radius of the circle is 18 cm

mart [117]3 years ago
4 0

Answer:

a. 18 cm

Step-by-step explanation:

Area of a circle is given by: A=πr²

where r is the radius and A the area.

therefore we substitute A with the value for the area in the question.

324π=πr²

cancelling the factor π on both sides gives: 324=r²

√324=r

r=18cm

You might be interested in
When price increases, quantity supplied:
lara31 [8.8K]
It should increase but I’m between stays the same or increase, I’m not sure in a 100% sorry...
3 0
3 years ago
Bill owed his brother $21.50, but was able to pay him back $18.75. How much does Bill owe his brother now?
Andrew [12]

Answer:

2.75

Step-by-step explanation:

21.50 - 18.75 = $2.75

CAN I HAVe BRAINLIEST

5 0
2 years ago
El costo de un teléfono celular con un descuento del 30% sobre el precio de lista, está dado por p(x)= x-0.30x. El impuesto a pa
sergejj [24]
B is the answer to your question
5 0
3 years ago
What is 10% of 75? Use the double number line below to label your work and answer.
BabaBlast [244]

Answer: the answer is 7.5

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Given the equation,D=m/v if D=6/7 and =m+3 then m=. A.18 B.-18 C.15
Marysya12 [62]

Answer:

m = 3.86

Step-by-step explanation:

D = 6 / 7

D = m + 3

6 / 7 = m + 3

6 / 7 + 3 = m

m = 3.86

8 0
3 years ago
Other questions:
  • Express 4.16×(10)^3 in standard form
    15·1 answer
  • Lyla i am not cheating they are practice questions stop deleting my question Guys i need help
    12·1 answer
  • Please help me idk this
    10·1 answer
  • Secant TP and tangent TR intersect at point T Chord SR and chord PO intersect
    14·1 answer
  • How did you arrived at that answer?
    5·1 answer
  • 28/29 and 30 plz short explanation thanks
    11·1 answer
  • Which is an irrational number
    10·1 answer
  • Can anyone help me with this plz?
    14·1 answer
  • Help pleaseeeeee thank youuu
    15·2 answers
  • Kelly has 236 feet of fence to use to enclose a rectangular space for her dog. She wants the width to be 23 feet. Select the cor
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!