Answer:
9
Step-by-step explanation:
9.45 is rounded down to 9 because the number must reach half to round up. To round up to 10, it must be 9.5. hope this helps
Answer:
105
Step-by-step explanation:
Answer:
The value is
Step-by-step explanation:
From the question we are told that
The probability that the student knows the answer to the question is
The probability that that the student will guess is
The probability that that the student get the correct answer given that the student guessed is
Here W denotes that the student gets the correct answer
Generally it a certain fact that if the student knows the answer he would get it correctly
So the probability the the student got answer given that he knows it is
Generally from Bayes theorem we can mathematically evaluate the probability that the student knows the answer given that he got it correctly as follows
=>
=>
Answer:
The total nuber of hours that the battery can be used over its lifetime is 600.
Step-by-step explanation:
We use an infinite geometric series to solve this question.
The sum of all values of an infinite geometric series is given by the following equation:
In which is the first term and r is the common ratio.
After each charging, a battery is able to hold only 97% of the charge from the previous charging.
This means that
The battery was used for 18 hours on its first charge before it had to be recharged.
This means that
What is the total number of hours the battery can be used over its lifetime?
The total nuber of hours that the battery can be used over its lifetime is 600.
<span>There’s a spinner with 8 sections in total with different colors. 2 red, 2 green, 2 yellow, and 2 blue.
To find the probability of the spinner landing on any color, simply take
(number of color)/(total)
To find the probability of landing on red, there are 2 reds, and 8 total. So,
2/8 = 1/4
To find the probability of landing on blue, there are 2 blues, and 8 total. So, 2/8 = 1/4. The same as before.
Flipping a coin gives a 50/50 or equal chance between two events. We should pick the answer that has only two events. That would be a true/false test since there are only two choices in this situation.</span>