Using the formula for area of a circle: area = pi x r^2
You now have:
225pi ft^2 = pi x r^2
Divide both sides by pi:
225 = r^2
Take the square root of both sides:
r = 15
The radius is 15 feet.
The diameter is the radius x 2:
Diameter = 15 x 2 = 30 feet.
Answer: 30 feet.
Answer:
Step-by-step explanation:
Given that there are 3 boxes. First box contains 100 components of which 20 % are defective, second box contains 200 components of which 25 % are defective, third box contains 300 components of which 40 % are defective.
Box is selected randomly and from this box one component is selected randomly. The chosen component turned out to be defective.
Here A1, A2 and A3 events from drawing I, II and III box are mutually exclusive and exhaustive
B = The drawn ball is defective
Required probability
a) second box = P(A2/B)
=
(by Bayes theorem of conditional probability)
=
b) third box = P(A3/B)
=
Answer: 25.5
Step-by-step explanation:
Multiply:
17 × 150/100 =
Then you get 25.5
I hope I helped you with this question. Have a great day!
Answer:
No, for 2(4)+1+3 does not equal 0 it equals 12
Step-by-step explanation:
first we have
2x+1+3=0 x=4
replace x with 4
2(4)+1+3=0
then following pemdas
8+1+3=0
finish it up
12=0