Answer:
r = 4.24 inches
Step-by-step explanation:
Given that,
The surface area of the ball, A = 226.8 sq inches
The formula for the surface area of a sphere is given by :
Where
r is the radius of the ball
So, the radius of the ball is 4.24 inches.
Answer:
The answer to your question is: 40 bags
Step-by-step explanation:
Data:
box weight = 200 g
Box weight + bags = 6.2 kg
1 bad weight = 150 g
Process:
We need to know the weight of all the bags so we subtract the box weight from the total weight
Goody bags weight = 6200 g - 200 g
Goody bags weight = 6000 g
To find the weight of one bag we use a rule of three
1 goody bags ---------------- 150 g
x ---------------- 6000 g
x = (6000) (1) / 150 = 40 bags
Answer: 18
Step-by-step explanation:
Answer:
16 = <u>3x</u>
Step-by-step explanation:
It is an equilateral triangle. The formula for the perimeter of an equilateral triangle is P = 3a.
Answer:
a. The probability is not equal to 1
b. P (A') = 0.70
c. P ( A U B ) = 0.80
d. P ( A' ∩ B' ) = 0.20
Step-by-step explanation:
a. Because these A and B are disjoint
b. since the probability of A is 0.30 then the probability of A compliment is
P(A compliment ) = 1 - P (A)
P(A compliment ) = 1-0.30
P(A compliment ) = 0.70
c. Since event are disjoint then intersection of A and B is 0, so probability of A U B is;
P ( A U B ) = P (A) + P(B) - P(A∩ B)
P ( A U B ) = 0.30 + 0.50 - 0
P ( A U B ) = 0.80
d. The inetrsection of compilments of A and B are:
by using De Morgan's Law we have,
P ( A' ∩ B' ) = P [(A U B )']
P ( A' ∩ B' ) = 1 - P ( A U B )
P ( A' ∩ B' ) = 1 - 0.80
P ( A' ∩ B' ) = 0.20
