(7.8 x 10^3) (1.0 x 10^4) =?
1 answer:
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Answer:
Probability of the teacher or other staff is 0.7143
Step-by-step explanation:
pr(teacher or other staff) = pr(teacher) + pr(other staff) - pr(teacher and other staff)
Total number of tickets = 1050
Number of tickets sold to teachers = 515
Number of tickets sold to other staff = 235
pr(teacher) =
= 103
= 0.4905
pr(other staff) =
= 47
= 0.2238
Since the picking of the wining ticket is mutually exclusive, then;
pr(teacher and other staff) = 0
Thus,
pr(teacher or other staff) = 0.4905 + 0.2238 - 0
= 0.7143
Answer:
13
Step-by-step explanation:
I am amusing you are looking for the hypotenuse since this is middle school.
If you have the legs and are looking for the hypotenuse you use the Pythagorean Theorem
The legs are a and b, and the hypotenuse is c
The work would look like this
extra notes
- I rounded to 13
- If you didn;t know you cancles exponents with roots
so the is cancled by aka
Hope this helped :)