Answer:

Step-by-step explanation:
This triangle is a 45-45-90 triangle.
By using the image I posted, we can find x easily.
So, we have
as one of the sides.
They hypotenuse, which is x is just 
Simplify and we get x = 
Answer:
BC = 20 units
Step-by-step explanation:
if ∡C = ∡B then 2x + 16 = 7x + 6
16 = 5x + 6
10 = 5x
x = 2
BC = 2(2) + 16, which is 20
The definition of the derivative is

as h goes to 0. So since the f is ln(x)

Since it is evaluated at 5 (the point 5, ln5), it is
All you have to do is 14*.30 which equals to $4.20