Answer: You can use only common factor (3).
Step-by-step explanation:
12g²-27h²
3 . ( 4g² - 9h² )
A = a + b over 2
First multiply both sides by 2:
2A = a+b
Now subtract a from both sides:
b = 2A - a
the correct answer is going to be 54
36 + 90 = 126
180 - 126 = 54
x = 54
Answer:
1) y = 2x-2
2) y = -6/5+1
Step-by-step explanation:
Answer:
Yes, this is surprising. Random samples with this much error are unusual.
Step-by-step explanation:
The expected proportion of green candies in the bag is p=0.20.
We have a sample with proportion p=0.3.
The amount of candies in the bag are 100.
We can calculate the probabilities of having 30 candies out of a sample of size n=100, if the proportion of the population is p=0.2.
This can be modeled by a binomial distribution with these parameters:

Then, the probability of having 30 or more candy in the bag is (applying the continuity factor):

There is too little probability (1%) of having 30 green candies in the bag.