Step-by-step explanation:
V = s 3 square where s = 4
V = 4(9)
V = 36
9 is the square of 3
Part A: 85x, 15y.
Part B: There are 2 terms because he has two jobs only.
Part C the term is 15y
Using the hypergeometric distribution, it is found that there is a 0.0455 = 4.55% probability that both light bulbs failed the test.
The bulbs are chosen without replacement, and this is why the <u>hypergeometric distribution</u> is used to find the probability.
Hypergeometric distribution:
The parameters are:
- x is the number of successes.
- N is the size of the population.
- n is the size of the sample.
- k is the total number of desired outcomes.
In this problem:
- 12 bulbs, thus
- 3 failed the test, thus .
- 2 are selected, thus .
The probability that <u>both failed the test</u> is P(X = 2), thus:
0.0455 = 4.55% probability that both light bulbs failed the test.
A similar problem is given at brainly.com/question/24826394
Answer:
25
Step-by-step explanation:
Answer:
the volume of the sphere is 507.78981 cm^3
Step-by-step explanation:
The computation of the volume of the sphere is given below:
Given that
The Diameter is 9.9 cm
So, the volume of the sphere is
= 4 ÷ 3 ×π × r^3
= 4 ÷ 3 × 3.14 × 9.9 ÷ 2^3
= 4 ÷ 3 × 3.14 × 4.95^3
= 507.78981 cm^3
Here r denotes the radius
And, the radius would be comes by dividing the diameter from 2
Hence, the volume of the sphere is 507.78981 cm^3