Expert verified , hope it helps
Answer:
4/21
Step-by-step explanation:
21 total computers and only 4 work so 4/21 probablity
Answer:
B. 1.14, -0.77
Step-by-step explanation:
As you know the quadratic formula gives you the solution to
ax² + bx + c = 0
as ...
Here, we have a=8, b=-3, c=-7, so the formula tells us the solution is ...
The printer would be able to print 510 letters is 30 seconds.
Answer: 1)100ways and 2)90ways
Step-by-step explanation:
Given :-The 10 students who completed a special flying course are waiting to see if they will be awarded the one Distinction or the one Merit award for their efforts.
Ways can the two awards be given if the same student can receive both awards (i.e repetition is allowed)
=10×10=100ways
Ways can the two awards be given if the same student cannot receive both awards(i.e. repetition is not allowed)
=10×9=90ways