Answer: There is probability that he will be asked a question in class during Week 7 is 64%.
Step-by-step explanation:
Since we have given that
Probability that question in class being asked during Week 1 = 1%
Probability that question in class being asked during Week 2 = 2%
Probability that question in class being asked during Week 3 = 4%
and so on.
So, we need to find the probability that question being asked in class during week 7.
Since it forms geometric series:
1%, 2%, 4%, ........
So, we need to find the 7 th term:

Hence, there is probability that he will be asked a question in class during Week 7 is 64%.
Her estimate is reasonable because there are 12 months in a year. 12×40 is 480. 480 is pretty close to 474.72
Answer:
591.5
Step-by-step explanation:
You're rounding so yeah this was simple
Answer:
7/9
Step-by-step explanation:
-7/5÷-9/5
- cancelled with each other
(7×5)/(9×5)
5 also cancelled with 5
then your answer is 7/9
<span>-x^2=4
x = -2i and x = 2i
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