Hello :
the consecutive room numbers are : n , n+1
n(n+1) =420
n²+n -420 = 0
the discriminant delta = b² - 4ac ( a = 1 and b = 1 and c = - 420
delta = (1)²-4(1)(-420) =1681= 41²
n = (-1 -41)/2 ( refused negatif number)
or
n = (-1+41)/2 =20
<span> the room numbers.are : 20 , 21</span>
Answer:
The answer is 3
Step-by-step explanation:
.000027/.000009 = 3
There's not much other steps you can add.
Two triangles must be congruent by SSS when their all sides would be equal.
So, BC = DF
AC = DE
Then, AB = EF = 10
In short, Your Answer would be Option B
Hope this helps!
Answer: The annual flow of the Mississippi river would fit in the Atlantic ocean 
times.
Step-by-step explanation:
Given: Volume of Atlantic Ocean= 
cubic meters
Annual flow of Mississippi river = 
cubic meters.
then, the number of times the annual flow of the Mississippi river would fit in the Atlantic ocean = 
![=\dfrac{3.1\times10^{17}}{6.3\times10^{11}}\ \ \=0.492063492063\times10^{17-11}\ \ [\dfrac{a^m}{a^n}=a^{m-n}]\\\\=0.492063492063\times10^6\approx4.92\times10^5](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B3.1%5Ctimes10%5E%7B17%7D%7D%7B6.3%5Ctimes10%5E%7B11%7D%7D%5C%20%5C%20%5C%3D0.492063492063%5Ctimes10%5E%7B17-11%7D%5C%20%5C%20%5B%5Cdfrac%7Ba%5Em%7D%7Ba%5En%7D%3Da%5E%7Bm-n%7D%5D%5C%5C%5C%5C%3D0.492063492063%5Ctimes10%5E6%5Capprox4.92%5Ctimes10%5E5)
Hence, the annual flow of the Mississippi river would fit in the Atlantic ocean times.
Answer:
4.5 miles
Step-by-step explanation:
you do 40/3 and get .75, then do .75 times 60 and you get 4.5 miles. her mile a minute ratio is 13 mins and about 23 seconds
