We can solve this pretty easily using a proportion where x equals the number of cloudy days in the year:
2/5 = x/365
Now cross multiply:
730 = 5x
And finally divide both aides by five:
146 = x
So 146 days of the year were cloudy.
Hope I helped, and let me know if you have any questions!
First, get the common denominator. Do this by multiplying 5/10 by 10
35/100 + 50/100 = 85/100
Then,simplify :
17/20
Hope this helps!
Important: Please express exponents properly: -2x^2 Correct
-2x2 Not correct
Rewrite <span>(-2x2 -6x + 7) - (3x3 - 5x + 14)
as
</span><span>- 2x^2 -6x + 7
</span><span>- (3x^3 - 5x + 14)
__________________
Even better, write each power of x in its own column:
</span>- 2x^2 -6x + 7 - 2x^2 -6x + 7
- 3x^3 + 5x -14 - 3x^3 + 5x -14
--------------------- ------------------------------
-3x^3 - 2X^2 - X - 7 (ANSWER)
We can reduce the order of the ODE by substituting 
, so that 
and 
. Then
has characteristic equation
with root 
, which has multiplicity 2, so that the characteristic solution is
Integrate both sides to solve for 
:
Integrate again to solve for 
:
And one last time to solve for 
:
Answer:
90
Step-by-step explanation:
Given that :
Number of soldiers = 8160
Number left out = 60
Result of arrangement gives a perfect square ;
Hence, the number of soldiers which makes up the arrangement will be ;
Total number of soldiers - number left out
8160 - 60 = 8100
Hence 8100 soldiers were used to form a perfect square ;
Number of soldiers in a row :
√8100 = 90
Hence, we have 90 soldiers in a row
