Answer:
336
Step-by-step explanation:
Using the definition of n
= n ! / (n- r) !
where n ! = n(n - 1)(n - 2).... × 3 × 2 × 1
8
= 8 ! / (8 - 3) !
= 8 ! / 5 !
= 
[ cancel 5(4)(3)(2)(1) on numerator/denominator
= 8 × 7 × 6 = 336
First, subtract the height he will grow to to the height he is now.
132 - 90 = 42
Now divide this from 3.5.
42 / 3.5 = 12
So it will take 12 months for him to grow to a height of 132 cm.
Answer:
- Carl will catch up Flo at 4:00
Step-by-step explanation:
<u>Given</u>
- Flo reads one page every minute
- Carl reads one page every 50 seconds
- Carl starts 30 minutes late
- Max number of pages = 500
Let x be the number of pages each reads when Carl catches up Flo
Then we have the time for Flo and Carl
<u>Flo: </u>
<u>Carl: </u>
- x pages after 30 + x*50/60 minutes
<u>The time is same:</u>
- x = 30 + 50/60x
- x = 30 + 5/6x
- x - 5/6x = 30
- 1/6x = 30
- x = 6*30
- x = 180
180 minutes = 3 hours
1:00 + 3 hours = 4:00
Answer:
2√3=2√3, which is irrational
