Answer:
3.4 x 107
Step-by-step explanation:
The first digit can be any one of the numbers 2-9 That a total of 8 numbers.
The next 6 digits can be any permutation of 6 from the numbers 0 to 9.
(10 numbers)
nPr = n! / r!
so here we have 10P6 = 10! / 6! = 10*9*8*7 = 5040
So final answer is 8 * 5040 = 40,320
Answer:
2 - 2<em>n</em>
Step-by-step explanation
We can use<em> n</em> for the number.
2 - 2(<em>n</em>)
2- 2<em>n</em>
Answer:
blue 1
yellow 2
black 1/5
Step-by-step explanation:
blue 1
yellow 2
black 1/5
Answer:
1day=2.5km
7days=?
<u>7</u><u>×</u><u>2</u><u>.</u><u>5</u>
1
=17.5km
1km=1000m
27.5km=?
=27500m