Answer:
7.5 in
Step-by-step explanation:
We use the equation for repeated trials written below:
Probability = n!/r!(n-r)! * p^(n-r) * q^r
The p is the probability of getting a side A in one toss. Since a counter has only two side, p = 0.5. The q is the probability of not getting side A in one toss, which is also q = 0.5. Now, r is the number of success per n trials. There are 3 tosses so, n=3. The question is getting "at least 1" counter. So, r=1, r=2 and r=3.
Probability for r=1: 3!/1!(3-1)! * (0.5)^(3-1) * (0.5)^1= 0.375
Probability for r=2: 3!/2!(3-2)! * (0.5)^(3-2) * (0.5)^2= 0.375
Probability for r=1: 3!/3!(3-3)! * (0.5)^(3-3) * (0.5)^3= 0.125
Total probability = 0.375 + 0.375 + 0.125 = 0.875
The <em><u>correct answer</u></em> is:
639.4 minutes.
Explanation:
Saturn takes 10 hours, 39 minutes and 24 seconds to make a complete rotation.
10 hours × 60 minutes per hour = 600 minutes.
600 minutes + 39 minutes = 639 minutes.
24 seconds out of 60 seconds per minute = 24/60 = 0.4.
This gives us 639+0.4 = 639.4 minutes.
728 km per hour
3640 divided by 5 to find the unit rate for kilometers per hour
Answer:
Dry cleaning service at Spot-Less DryCleaners is the best deal
Step-by-step explanation:
The total expense of getting four shirts dry cleaned at Spot-Less DryCleaners
dollars
The total expense of getting four shirts dry cleaned at No Mess or Stress Dry Cleaner
dollars
The best deal would be where the expense will be the least.
Hence dry cleaning service at Spot-Less DryCleaners is the best deal.
