Answer:
v
= −
5
/8
Step-by-step explanation:
Solve for v by simplifying both sides of the equation, then isolating the variable.
The given ODE

is exact if
. It so happens that we have
, so it is indeed exact. For such an ODE, we're looking for a solution of the form
, for which the differential is

so we have the following system of PDEs that allow us to solve for
:


In the first PDE, we can integrate both sides with respect to
and recover
:


Then differentiating this with respect to
returns
:



So the general solution to the ODE is

or simply

Solution:
Let
X = height of Cody on the first day of school last year
Given:
Y= height of Cody on the first day of school year = 165 cm
10%(X)+X=Y
.10(X)+X=165
1.10X=165
X=165/1.1
<span>X=
150 cm = height of Cody on the first day of school last year</span>
Answer:
use the theorem of pythagoras
LM=MN²+LN²
9²=X²+6²
81=X²+36
-x²=36-81
ײ=36+81
ײ=117
x=10
C. Divide the previous value by 5