Answer:
(2x+3)(x+1)
Step-by-step explanation:
6x² + 2x + 9x +3
(6x² + 2x) + (9x +3)
2x (x+1) + 3 (x+1)
(2x+3)(x+1)
The value of a is 26 degrees
Answer: B
Step-by-step explanation:
Every real is solution of the equation .
Answer:
Mean 24, standard error 0.8
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation , the sample means with size n of at least 30 can be approximated to a normal distribution with mean and standard deviation, also called standard error
In this problem, we have that:
What are the mean and the standard error of the sample mean?
By the Central Limit Theorem, mean 24 and standard error