Answer:
k = 30, 
Step-by-step explanation:
Since
is a solution, then it must satisfy the differential equation. So, we calculate the derivatives and replace the value in the equation. We have that

Then, replacing the derivatives in the equation we have:

Since
is a positive function, we have that
.
Now, consider a general solution
, then, by calculating the derivatives and replacing them in the equation, we get

We already know that r=5 is a solution of the equation, then we can divide the polynomial by the factor (r-5) to the get the other solution. If we do so, we get that (r-6)=0. So the other solution is r=6.
Therefore, the general solution is

To answer this item, we assume that the topic is in similar polygons such that the ratio of the corresponding sides should be equal. In this item,
BY/YC = AX/XC
Substituting the known values,
6/10 = 18/XC
The value of XC from the equation is 30. The answer is letter C.
Answer:
x = 1/3 or x = -2/3
Step-by-step explanation:
Let's solve your equation step-by-step.
9x2+3x−2=0
For this equation: a=9, b=3, c=-2
9x2+3x+−2=0
Step 1: Use quadratic formula with a=9, b=3, c=-2.



x = 1/3 or x = -2/3
Answer: the square root of 3
Step-by-step explanation:
Answer:2=c
Step-by-step explanation:
22=5c+3c-c+8
22-8=5c+3c-c+8-8
14=5c+3c-c+0
14=5c+3c-c
14=8c-2
14=7c
14/7=7c/7
2=c
Check answer by pluging 2 in for c.
5*2+3*2-2+8
=10+6-2+8
=16-2+8
=14+8
=22
The final answer is 2=c