What grade are you in I can try to help but this looks difficult can you try to explain it for me
Answer:
D.
Step-by-step explanation:
I think that this is a combination problem. From the given, the 8 students are taken 3 at a time. This can be solved through using the formula of combination which is C(n,r) = n!/(n-r)!r!. In this case, n is 8 while r is 3. Hence, upon substitution of the values, we have
C(8,3) = 8!/(8-3)!3!
C(8,3) = 56
There are 56 3-person teams that can be formed from the 8 students.
Answer:
They're congruent if they have the exact same sides and the exact same angles. So from what i can see, yes they are congruent.
Step-by-step explanation:
Answer:
8 minutes.
Step-by-step explanation:
Let m represent number of minutes.
We have been given that Mike is biking to catch up with his sister who is already 1200 yards ahead of him. His sister is biking at a speed of 450 yards per minute.
So total distance covered by Mike's sister after m minutes would be
.
Mike bikes at a speed of 600 yards per minute, so total distance covered by Mike in minutes would be
.
Now, we will equate both expressions to find minutes at which both distances will be equal as:




Therefore, it will take after 8 minutes for Mike to catch his sister.