Answer:
3/4 mile
Step-by-step explanation:
![A = l *w\\\frac{1}{2} = \frac{2}{3} * w\\w = \frac{3}{2} * \frac{1}{2}\\w = 3/4 mile](https://tex.z-dn.net/?f=A%20%3D%20l%20%2Aw%5C%5C%5Cfrac%7B1%7D%7B2%7D%20%3D%20%5Cfrac%7B2%7D%7B3%7D%20%2A%20w%5C%5Cw%20%3D%20%5Cfrac%7B3%7D%7B2%7D%20%2A%20%5Cfrac%7B1%7D%7B2%7D%5C%5Cw%20%3D%203%2F4%20mile)
This is a geometric sequence with a common ratio of 2
an = a1 * r^(n - 1)
n = term to find = 21
a1 = first term = 0.05
r = common ratio = 2
now we sub
a21 = 0.05 * 2^(21 - 1)
a21 = 0.05 * 2^20
a21 = 0.05 * 1048576
a21 = 52428.80 <==== after working 21 days
A double digit of the same number.
Step-by-step explanation:
(x+10)(x-0)=0
x=-10 and x=0
(-10)^2+10(-10)+h=h
100-100+h=h
0=0
0^2+10(0)+h=h
0+h=h
0=0
I think,you miss some numbers
if you don't miss some numbers, this solution is no solution