Answer: 72
Step-by-step explanation:
From the question, we are informed that a disc jockey can play 7 records and that there are 9 records to select from for a particular segment of a radio show.
The number of ways that the program for the segment be arranged will be:
= 9! / 7!
= (9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1) / (7 × 6 × 5 × 4 × 3 × 2 × 1)
= 9 × 8
= 72
Answer:
3.496
Step-by-step explanation:
Multiply these two by getting rid of the decimal:
38 -<em>decimal is moved one place here.</em>
<u>x092</u> -<em>decimal is moved two places here.</em>
3496 -move decimal three places over.
Answer:
B
Step-by-step explanation:
1/12 hour = 5 minutes, 2 weeks is 14 days, so 5*15 = the amount of time he brushes his teeth so you would need to change from hours to minutes
