A) a=the initial value ($1650)
b=1-percent of decrease (0.81 or 81%)
B) About 3 years
Answer:
33.61 mm (the square root of 1130)
Step-by-step explanation:
Answer:
They surveyed 300 students
Step-by-step explanation:
In order to find this, take the number who said they speak Spanish and then divide that number by the percentage.
36 students / 12% = 300 total students.
Answer:
y=1/2+1
Step-by-step explanation:
allahu akbar
In this question, you are asked the probability for any of the 30 person to have the same birthday. To answer this it will be easier to calculate how much the probability for no one has same birthday. Let say the first person birthday is 1. Then the next person birthday should be other than 1, which mean 364 possible days out of 365 days. The next person should be 363 possible days out of 365 days
Then the calculation for 30 people would be:
(365!/365-30!)/(365^(30)= (365!/335!)/ 365^30= 29.4%
Then the probability of at least two person have same birthday would be: 100%-29.4%= 70.6%
