Answer:
(2 n + 1) (n + 7)
Step-by-step explanation:
Factor the following:
2 n^2 + 15 n + 7
Factor the quadratic 2 n^2 + 15 n + 7. The coefficient of n^2 is 2 and the constant term is 7. The product of 2 and 7 is 14. The factors of 14 which sum to 15 are 1 and 14. So 2 n^2 + 15 n + 7 = 2 n^2 + 14 n + n + 7 = 7 (2 n + 1) + n (2 n + 1):
7 (2 n + 1) + n (2 n + 1)
Factor 2 n + 1 from 7 (2 n + 1) + n (2 n + 1):
Answer: (2 n + 1) (n + 7)
Remember
so
take the log of both sides
or
B is the answer
Answer:
6.25%
Step-by-step explanation:
To know the final probability that this has happened, we must multiply the probability of each event, they tell us that the probability that it is a girl is 1/2 and this happened 4 times, therefore:
(1/2) ^ 4 = 0.0625
that is, the probability that 4 girls are born is 6.25%
an unusual probability is considered when it is less than 5%, therefore, although it approaches this figure, it is not unusual
Answer: B
Step-by-step explanation:
YOU MINUS 4 -4 WHICH IS -8 SO ITS B